Energy Conservation Program: Test Procedures for Electric Motors and Small Electric Motors, 648-676 [2010-33069]
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DEPARTMENT OF ENERGY
10 CFR Part 431
[Docket No. EERE–2008–BT–TP–0008]
RIN 1904–AB71
Energy Conservation Program: Test
Procedures for Electric Motors and
Small Electric Motors
Office of Energy Efficiency and
Renewable Energy, Department of
Energy.
ACTION: Supplemental notice of
proposed rulemaking.
AGENCY:
This supplemental notice of
proposed rulemaking (SNOPR) proposes
to clarify certain terms and language in
our regulations for certain commercial
and industrial equipment, as follows:
revise the definitions of certain terms
related to electric motors and small
electric motors, clarify the scope of
energy conservation standards for
electric motors, update references to
several industry and testing standards
for electric motors, incorporate by
reference and update alternative test
methods for polyphase and single-phase
small electric motors, and specify the
determination of efficiency
requirements for small electric motors.
These actions are being proposed to
clarify the scope of regulatory coverage
for small electric motors and electric
motors and ensure the accurate and
consistent measurement of energy
efficiency. This notice invites comments
on U.S. Department of Energy (DOE)
proposals and the issues presented
herein, and requests comments, data,
and other information that would enable
DOE to promulgate a final rule.
DATES: DOE will accept comments, data,
and information regarding the SNOPR
until February 4, 2011. See section IV,
‘‘Public Participation,’’ of this
supplemental proposed rule for details.
ADDRESSES: Any comments submitted
must identify the SNOPR on Test
Procedures for Electric Motors and
provide the docket number EERE–2008–
BT–TP–0008 and/or Regulation
Identifier Number (RIN) 1904–AB71.
Comments may be submitted using any
of the following methods:
• Federal eRulemaking Portal: https://
www.regulations.gov. Follow the
instructions for submitting comments.
• E-mail: small_electric_motors_
tp.rulemaking@ee.doe.gov. Include the
docket number EERE–2008–BT–TP–
0008 and/or RIN 1904–AB71 in the
subject line of the message.
• Postal Mail: Ms. Brenda Edwards,
U.S. Department of Energy, Building
Technologies Program, Mailstop EE–2J,
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SUMMARY:
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1000 Independence Avenue, SW.,
Washington, DC 20585–0121. Please
submit one signed paper original. Due to
the potential delays in DOE’s receipt
and processing of mail sent through the
U.S. Postal Service, DOE encourages
respondents to submit comments
electronically to ensure timely receipt.
• Hand Delivery/Courier: Ms. Brenda
Edwards, U.S. Department of Energy,
Building Technologies Program, 6th
Floor, 950 L’Enfant Plaza, SW.,
Washington, DC 20024. Telephone:
(202) 586–2945. Please submit one
signed paper original.
For detailed instructions on
submitting comments and additional
information on the rulemaking process,
see section IV, ‘‘Public Participation,’’ of
this document.
Docket: For access to the docket to
read background documents or
comments received, visit the U.S.
Department of Energy, Sixth Floor, 950
L’Enfant Plaza, SW., Washington, DC
20024, (202) 586–2945, between 9 a.m.
and 4 p.m., Monday through Friday,
except Federal holidays. Please call Ms.
Brenda Edwards at (202) 586–2945 for
additional information about visiting
the Resource Room.
FOR FURTHER INFORMATION CONTACT: Mr.
James Raba, U.S. Department of Energy,
Office of Energy Efficiency and
Renewable Energy, Building
Technologies Program, EE–2J, 1000
Independence Avenue, SW.,
Washington, DC 20585–0121.
Telephone: (202) 586–8654. E-mail:
Jim.Raba@ee.doe.gov. In the Office of
the General Counsel, contact Ms. Ami
Grace-Tardy, U.S. Department of
Energy, Office of the General Counsel,
GC–71, 1000 Independence Avenue,
SW., Washington, DC 20585. Telephone:
(202) 586–5709. E-mail: Ami.GraceTardy@hq.doe.gov.
For information about how to submit
or review public comments, contact Ms.
Brenda Edwards, U.S. Department of
Energy, Office of Energy Efficiency and
Renewable Energy, Building
Technologies Program, EE–2J, 1000
Independence Avenue, SW.,
Washington, DC 20585–0121.
Telephone: (202) 586–2945. E-mail:
Brenda.Edwards@ee.doe.gov.
SUPPLEMENTARY INFORMATION:
Table of Contents
I. Introduction
A. Authority
B. Background
1. Electric Motors
2. Small Electric Motors
II. Summary of Supplemental Notice of
Proposed Rulemaking
III. Discussion
A. Definition of Electric Motor
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B. Definition of General Purpose Electric
Motors, Subtypes I and II
C. Definition of NEMA Design B Motor
D. Fire Pump Motors Definition
E. Fire Pump Motor Coverage
F. Energy Conservation Standards for
Electric Motors
G. References to International
Electrotechnical Commission, National
Electrical Manufacturers Association,
Institute of Electrical and Electronics
Engineers, and Canadian Standards
Association Standards for Electric
Motors
H. National Institute of Standards and
Technology/National Voluntary
Laboratory Accreditation Program
Handbook 150–10 Update and Checklist
I. Appendix A to Subpart B of Title 10 of
the Code of Federal Regulations Part 431
J. Definition of Small Electric Motor
K. Canadian Standards Association Test
Procedures for Small Electric Motors
L. Small Electric Motor Represented
Efficiency Value
M. Validation of the Small Electric Motor
Alternative Efficiency Determination
Method
N. Small Electric Motor Nationally
Recognized Certification Program
O. Issues Related to Compliance
Certification and Enforcement of Electric
Motors and Small Electric Motors.
IV. Public Participation
A. Submission of Comments
B. Issues on Which the Department of
Energy Seeks Comment
1. Definition of Electric Motor
2. Definition of General Purpose Electric
Motors, Subtypes I and II
3. Definition of NEMA Design B Motor
4. Fire Pump Motors Definition
5. Fire Pump Motor Coverage
6. Energy Conservation Standards for
Electric Motors
7. References to International
Electrotechnical Commission, National
Electrical Manufacturers Association,
Institute of Electrical and Electronics
Engineers, and Canadian Standards
Association Standards for Electric
Motors
8. National Institute of Standards and
Technology/National Voluntary
Laboratory Accreditation Program
Handbook 150–10 Update and Checklist
9. Appendix A to Subpart B of Title 10 of
the Code of Federal Regulations Part 431
10. Canadian Standards Association Test
Procedure for Small Electric Motors
11. Small Electric Motor Represented
Efficiency Value
12. Validation of the Small Electric Motor
Alternative Efficiency Determination
Method
13. Small Electric Motor Nationally
Recognized Certification Program
14. Issues Related to Compliance
Certification and Enforcement of Electric
Motors and Small Electric Motors
V. Procedural Issues and Regulatory Review
A. Review Under Executive Order 12866
B. Review Under the Regulatory Flexibility
Act
C. Review Under the Paperwork Reduction
Act
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D. Review Under the National
Environmental Policy Act
E. Review Under Executive Order 13132
F. Review Under Executive Order 12988
G. Review Under the Unfunded Mandates
Reform Act of 1995
H. Review Under the Treasury and General
Government Appropriations Act, 1999
I. Review Under Executive Order 12630
J. Review Under the Treasury and General
Government Appropriations Act, 2001
K. Review Under Executive Order 13211
L. Review Under Section 32 of the Federal
Energy Administration Act of 1974
VI. Approval of the Office of the Secretary
I. Introduction
A. Authority
Part A–1 of Title III of the Energy
Policy and Conservation Act, as
amended (EPCA), provides the
Department of Energy (‘‘DOE’’ or, in
context, ‘‘the Department’’) with the
authority to promulgate energy
conservation standards and related test
procedures for certain commercial and
industrial equipment. (42 U.S.C. 6311–
6317) This supplemental notice of
proposed rulemaking addresses issues
raised in response to an earlier notice of
proposed rulemaking, 73 FR 78220
(December 22, 2008).
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B. Background
In the Energy Policy Act of 1992,
Public Law 102–486 (October 24, 1992)
(EPAct 1992), Congress amended EPCA
to establish energy conservation
standards, test procedures, compliance
certification, and labeling requirements
for certain electric motors.1 In addition,
EPAct 1992 directed the Secretary of
Energy to determine whether energy
conservation standards for small electric
motors would be technologically
feasible and economically justified, and
would result in significant energy
savings.2 On October 5, 1999, DOE
published in the Federal Register, a
final rule that set forth procedures to
determine the energy efficiency of
electric motors. 64 FR 54114. After
determining that energy conservation
1 EPCA, as amended by EPAct 1992, had
previously defined an ‘‘electric motor’’ as ‘‘any
motor which is a general purpose T-frame, singlespeed, foot-mounting, polyphase squirrel-cage
induction motor of the National Electrical
Manufacturers Association, Design A and B,
continuous rated, operating on 230/460 volts and
constant 60 Hertz line power as defined in NEMA
Standards Publication MG1–1987.’’ (42 U.S.C.
6311(13)(A) (1992)) Through subsequent
amendments to EPCA, Congress removed this
definition and replaced it with language denoting
two new subtypes of general purpose electric
motors. (See 42 U.S.C. 6311(13)(A)–(B) (2010))
2 EPCA, as amended by EPAct 1992, defines the
term ‘‘small electric motor’’ to mean a ‘‘NEMA
general purpose alternating current single-speed
induction motor, built in a two-digit frame number
series in accordance with NEMA Standards
Publication MG1–1987.’’ (42 U.S.C. 6311(13)(G))
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standards for small electric motors
would be technologically feasible and
economically justified, see 71 FR 38799
(July 10, 2006), DOE initiated a
rulemaking to begin the development of
standards for small electric motors.3
Related to these efforts was DOE’s
publication of a July 7, 2009 final rule
prescribing test procedures for small
electric motors. 74 FR 32059. Today’s
supplemental notice of proposed
rulemaking (SNOPR) proposes
revisions, as summarized below, to the
test procedures and definitions related
to electric motors and small electric
motors that were not addressed in
previous rulemakings.
1. Electric Motors
Section 343(a)(5)(A) of EPCA requires
that test procedures for electric motor
efficiency shall be the test procedures
specified in the National Electrical
Manufacturers Association (NEMA)
Standards Publication MG1–1987 and
IEEE Standard 112 Test Method B for
electric motor efficiency, as in effect on
the date of enactment of EPAct 1992. (42
U.S.C. 6314(a)(5)(A)) Section
343(a)(5)(B) of EPCA directs that if the
NEMA and IEEE test procedures are
amended, the Secretary of Energy shall
amend the efficiency test procedures for
electric motors to conform to the
amended NEMA and IEEE test
procedures, unless the Secretary
determines, by rule, that amended
procedures are not reasonably designed
to produce results that reflect energy
efficiency, energy use, and estimated
operating costs, and would be unduly
burdensome to conduct. (42 U.S.C.
6314(a)(5)(B)) Subsequently, once newer
versions of these industry test
procedures became available, DOE
amended its regulations to include more
recent versions of these procedures.
MG1–1993 and IEEE Standard 112–1996
were codified at 10 CFR 431.22 (now
codified at 10 CFR 431.16 and appendix
B to subpart B). In addition, the
equivalent CAN/CSA C390–93, ‘‘Energy
Efficiency Test Methods for Three-Phase
Induction Motors’’ was added in the
final rule published on October 5, 1999.
64 FR 54114. These changes were made
3 A single-phase small electric motor is a rotating
electrical machine that operates on single-phase
electrical power, which refers to a single alternating
voltage sinusoidal waveform. Similarly, a
polyphase small electric motor is a rotating
electrical machine that operates on three-phase
electrical power, which refers to the sinusoidal
waveforms of three supply conductors that are
offset from one another by 120 degrees. Small
electric motors are generally used as components to
drive commercial and industrial pumps, fans,
conveyors, and other equipment that require low
power (i.e., approximately 3 horsepower and
below). 73 FR 78220, 78221 n.2 (December 22,
2008)
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to ensure that the latest industry
practices were incorporated into DOE’s
regulations and to incorporate related
equivalent procedures.
NEMA Standards Publication MG1
was most recently revised and
published on April 9, 2010, IEEE
Standard 112 was most recently
amended in November 2004, and CAN/
CSA C390 was most recently amended
on March 22, 2010 (as the renamed
‘‘Test methods, marking requirements,
and energy efficiency levels for threephase induction motors.’’) As directed
by section 343(a)(5)(B) of EPCA, DOE
proposed in a December 22, 2008, test
procedure notice of proposed
rulemaking (NOPR) (December 2008
NOPR) to update the test procedures in
10 CFR part 431 by incorporating by
reference the test methods from the
most current versions (at that time) of
those industry testing standards. 73 FR
78220. DOE received several comments
on its proposed updates as well as on
other issues and is addressing them in
today’s SNOPR for further public
review.
2. Small Electric Motors
Section 346 of EPCA requires DOE to
prescribe test procedures for those small
electric motors for which the Secretary
of Energy makes a positive
determination that energy conservation
standards would be technologically
feasible and economically justified, and
would result in significant energy
savings. (42 U.S.C. 6317(b)(1))
Consistent with this requirement, DOE
announced its intention in the
determination notice to initiate the
development of test procedures for
certain small electric motors. 71 FR
38807 (July 10, 2006).
Pursuant to section 346(b)(1) of EPCA,
in the December 2008 NOPR, DOE
presented potential test methods for
measuring the energy efficiency of small
electric motors that DOE was
considering incorporating into its
regulations. 73 FR 78220. DOE proposed
to base its test procedure on IEEE
Standard 114–2001, ‘‘Test Procedure for
Single-Phase Induction Motors,’’ IEEE
Standard 112–2004, ‘‘Test Procedure for
Polyphase Induction Motors and
Generators,’’ and Canadian Standards
Association (CAN/CSA) C747–94,
‘‘Energy Efficiency Test Methods for
Single- and Three-Phase Small
Motors.’’ 4 All of these testing standards
are industry-based test procedures that
4 The IEEE Standards addressed in this notice are
generally listed chronologically by their last date of
revision and adoption rather than their sequential
number.
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are well-known and commonly used by
small electric motor manufacturers.
On July 7, 2009, DOE published a
final rule adopting test procedures for
measuring the energy efficiency of small
electric motors. 74 FR 32059. However,
there were certain subsidiary issues
raised in the December 2008 NOPR that
required additional consideration before
a final decision could be made on how
to address them in light of comments
received from interested parties. These
issues are addressed in today’s SNOPR.
II. Summary of Supplemental Notice of
Proposed Rulemaking
Today’s SNOPR addresses and solicits
comment on particular issues
concerning definitions and test
procedures for electric motors and small
electric motors. DOE prepared this
SNOPR to ensure clarity in the
definitions and test procedures for
electric motors and small electric
motors and to address public comments
received in response to the December
NOPR.
With respect to electric motors, DOE
proposes to take four actions. First, DOE
proposes to clarify definitions for the
terms ‘‘electric motor,’’ ‘‘fire pump
motor,’’ ‘‘general purpose electric motor
(subtype I),’’ ‘‘general purpose electric
motor (subtype II),’’ and ‘‘NEMA Design
B.’’ In addition, DOE proposes to rename
the term ‘‘general purpose motor’’ to be
‘‘general purpose electric motor’’
consistent with terminology used in the
regulations. DOE believes that the
proposed revisions to these terms will
make the applicable test procedures
contained in 10 CFR part 431
appropriate for this equipment while
addressing comments from interested
parties submitted in response to the
December 2008 NOPR. Second, today’s
notice proposes to clarify the scope of
existing and pending energy
conservation standards for electric
motors in 10 CFR 431.25. Third, DOE
proposes to update the references to
NIST Handbook 150–10, ‘‘Efficiency of
Electric Motors,’’ and the associated
NIST Handbook 150–10 Checklist, IEC
standards documents, CAN/CSA C390,
and NEMA MG1 throughout subpart B
of 10 CFR part 431. Fourth, DOE
proposes revisions to appendix A to
subpart B, of 10 CFR part 431, to
maintain consistency with the Energy
Independence and Security Act (EISA
2007) amendments to the electric motor
scope of coverage, and to address
acceptable bounds for shaft dimensions
for covered general purposes electric
motors.
With respect to small electric motors,
on July 7, 2009, DOE published a final
rule that prescribed test procedures to
measure the energy efficiency of small
electric motors (July 2009 final rule). 74
FR 32059. Today’s SNOPR addresses
three related matters that would clarify
the scope of coverage and alleviate
potential undue testing burdens.
First, DOE proposes to define the
represented efficiency value and average
full load efficiency for small electric
motors.
Second, DOE proposes to include the
following test procedures as alternative
methodologies for measuring the energy
efficiency of polyphase small electric
motors: CAN/CSA C747 and CAN/CSA
C390. DOE understands that both test
methods are equivalent to IEEE
Standard 112 Test Methods A and B,
respectively, which were adopted in the
July 2009 final rule. DOE is also
updating existing references to CAN/
CSA C747 to the latest version of the
standard.
Finally, DOE proposes a method to
validate an alternative efficiency
determination method (AEDM) for small
electric motors, including the statistical
requirements to substantiate the AEDM.
While the AEDM was addressed in the
December 2008 NOPR, comments to that
notice indicated that the agency needed
to provide additional clarification
regarding how manufacturers should
use the sample of basic models tested
when validating their AEDMs. Today’s
notice clarifies that issue by proposing
an approach based on the AEDM
substantiation requirements for 1–200
horsepower electric motors.
The proposed revisions are
summarized in the table below and
addressed in detail in the following
section. Note that all citations to various
sections of 10 CFR part 431 throughout
this SNOPR preamble refer to the
current version of 10 CFR part 431. The
proposed regulatory text follows the
preamble to this notice. DOE seeks
comments from interested parties on
each of the proposed revisions.
TABLE 1—SUMMARY OF CHANGES PROPOSED IN THIS SNOPR AND AFFECTED SECTIONS OF 10 CFR PART 431
Existing Section in 10 CFR Part 431
Summary of Proposed Modifications
Section 431.11 of Subpart B—Purpose and Scope ................................
• Clarifies that subpart B is applicable to ‘‘electric motors,’’ but not
‘‘small electric motors.’’
• Revises the definitions of ‘‘accreditation,’’ ‘‘definite purpose motor,’’
‘‘general purpose electric motor (subtype I),’’ ‘‘general purpose electric motor (subtype II),’’ and ‘‘nominal full load efficiency.’’
• Adds new definitions for ‘‘electric motor,’’ ‘‘fire pump motor,’’ ‘‘general
purpose electric motor,’’ and ‘‘NEMA Design B motor.’’
• Removes definition of ‘‘general purpose motor.’’
• Removes sources for information and guidance from Section 431.15
and places it in new Section 431.14.
• Updates reference to CAN/CSA–C390.
• Updates references to IEC standards.
• Updates reference to IEEE 112.
• Updates reference to NEMA MG1.
• Updates reference to NIST Handbook 150–10.
• Updates references to IEEE 112 and CAN/CSA C390.
Section 431.12 of Subpart B—Definitions ................................................
Section 431.14 of Subpart B— Sources for information and guidance ...
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Section 431.15 of Subpart B—Materials incorporated by reference .......
Section 431.18 of Subpart B—Testing Laboratories ...............................
Section 431.19 of Subpart B—Department of Energy recognition of accreditation bodies.
Section 431.20 of Subpart B—Department of Energy recognition of nationally recognized certification programs.
Section 431.25 of Subpart B—Energy conservation standards and effective dates.
Section 431.31 of Subpart B—Labeling Requirements ...........................
Appendix A to Subpart B—Policy Statement for Electric Motors Covered Under the Energy Policy and Conservation Act.
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• Updates references to IEEE 112 and CAN/CSA–C390 for electric
motors.
• Clarifies the scope of efficiency standards in 431.25(a) through (e).
• Inserts kilowatt equivalent power ratings in the efficiency standard tables.
• Updates reference to NEMA MG1.
• Revised for consistency with EISA 2007 amendments.
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TABLE 1—SUMMARY OF CHANGES PROPOSED IN THIS SNOPR AND AFFECTED SECTIONS OF 10 CFR PART 431—
Continued
Existing Section in 10 CFR Part 431
Summary of Proposed Modifications
Appendix B to Subpart B—Uniform Test Method for Measuring Nominal
Full Load Efficiency of Electric Motors.
Section 431.441 of Subpart X—Purpose and Scope ..............................
Section 431.443 of Subpart X—Materials incorporated by reference .....
Section 431.444 of Subpart X—Test procedures for measurement of
energy efficiency.
Section 431.445 of Subpart X—Determination of small electric motor
efficiency.
Section 431.447 of Subpart X—Department of Energy recognition of
nationally recognized certification programs.
Section 431.448 of Subpart X—Procedures for recognition and withdrawal of recognition of certification programs.
III. Discussion
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A. Definition of Electric Motor
Before the enactment of EISA 2007,
section 340(13)(A) of EPCA, as
amended, defined the term ‘‘electric
motor’’ as ‘‘any motor which is a general
purpose T-frame, single-speed, footmounting, polyphase squirrel-cage
induction motor of the National
Electrical Manufacturers Association,
Design A and B, continuous rated,
operating on 230/460 volts and constant
60 Hertz line power as defined in
NEMA Standards Publication MG1–
1987.’’ Section 313(a)(2) of EISA 2007
struck that definition and established
two subtypes: General purpose electric
motor (subtype I) and general purpose
electric motor (subtype II). (42 U.S.C.
6311(13)) In addition, section 313(b)(2)
of EISA 2007 established energy
conservation standards for four types of
motors: General purpose electric motor
(subtype I) with a power rating of 1 to
200 horsepower; fire pump motors;
general purpose electric motor (subtype
II) with a power rating of 1 to 200
horsepower; and NEMA Design B,
general purpose electric motors with a
power rating of more than 200
horsepower to 500 horsepower. (42
U.S.C. 6313(b)(2)) All of these standards
apply to covered motors that are
manufactured alone or as a component
of another piece of equipment. The term
‘‘electric motor’’ (which frequently
appears throughout EPCA, as amended
by EISA, and various subparts of 10 CFR
part 431) was left undefined.
Consequently, DOE expressed concern
that the absence of a definition may
cause confusion about which electric
motors are required to comply with
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• Includes guidance regarding special shaft designs for motors.
• Updates references to NEMA MG1, IEEE 112, and CAN/CSA C390.
• Clarifies that subpart X is applicable to ‘‘small electric motors,’’ but
not ‘‘electric motors.’’
• Updates reference to CAN/CSA–C747.
• Adds reference to CSA–C390.
• Updates references to IEEE 112 and 114.
• Updates reference to CAN/CSA–C747.
• Adds reference to CAN/CSA–C390.
• Adds additional guidelines on use of a certification program and references section 431.447 for small electric motors.
• Defines the represented efficiency value.
• Adds a section on nationally recognized certification programs for
small electric motors similar to section 431.20 for electric motors.
• Adds a section on procedures for recognition of certification programs for small electric motors similar to section 431.21 for electric
motors.
mandatory test procedures and energy
conservation standards. 73 FR 78225.
In the December 2008 NOPR, DOE
proposed to clarify the EISA definition
of ‘‘electric motor’’ to mean any of the
following four types of motors: A
general purpose electric motor (subtype
I), a fire pump motor, a general purpose
electric motor (subtype II), or a NEMA
Design B general purpose electric motor.
73 FR 78225 and 78235. In DOE’s view,
applying the term ‘‘electric motor’’ in
this manner would clarify that the test
procedures prescribed for electric
motors would equally apply to each of
the four types of motors. 73 FR 78225.
Whereas DOE proposed to separate
(and define) the covered electric motors
into four distinct and separate types,
NEMA asserted that section 313(a)(2) of
EISA 2007 categorized covered electric
motors into two types: General purpose
electric motor (subtype I) and general
purpose electric motor (subtype II).
Further, NEMA commented that under
the DOE-proposed definition of electric
motor, a NEMA Design B general
purpose electric motor and a fire pump
motor would be viewed as separate and
apart from general purpose electric
motor (subtype I), when in reality they
are considered subsets of general
purpose electric motors (subtype I).
(NEMA, No. 12 at p. 7) 5
5 Notations of this form appear throughout this
document and identify statements made in written
comments or at public hearings that DOE has
received and has included in the docket for this
rulemaking. For example, ‘‘NEMA, No. 12 at p. 7’’
refers to a comment: (1) From the National
Electrical Manufacturers Association; (2) in
document number 12 in the docket of this
rulemaking; and (3) appearing on page 7 of the
submission.
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In view of the above and with the
term ‘‘electric motor’’ as yet unclear,
today’s SNOPR proposes to clarify the
term ‘‘electric motor’’ to mean ‘‘a
machine which converts electrical
power into rotational mechanical
power.’’ Additionally, as discussed
below, DOE is proposing to clarify what
constitutes a ‘‘general purpose electric
motor (subtype I)’’ by enumerating
certain design and performance
elements, and what constitutes a
‘‘general purpose electric motor (subtype
II)’’ by explicitly drawing the distinction
between a subtype I and subtype II.
B. Definition of General Purpose Electric
Motors, Subtypes I and II
EISA 2007 defines a general purpose
electric motor (subtype I) as a motor that
meets the definition of ‘‘general
purpose’’ which was in effect at the time
of enactment of EISA 2007. At that time,
10 CFR part 431 did not contain a
definition of ‘‘general purpose,’’
although the regulations did define
‘‘general purpose motor’’ as a motor
designed in standard ratings with either:
(1) Standard operating characteristics and
standard mechanical construction for use
under usual service conditions, such as those
specified in NEMA Standards Publication
MG1–1993, paragraph 14.02, ‘‘Usual Service
Conditions,’’ and without restriction to a
particular application or type of application;
or
(2) Standard operating characteristics or
standard mechanical construction for use
under unusual service conditions, such as
those specified in NEMA Standards
Publication MG1–1993, paragraph 14.03,
‘‘Unusual Service conditions,’’ or for a
particular type of application, and which can
be used in most general purpose
applications.
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64 FR 54142 (codified at 10 CFR
431.12).
DOE subsequently adopted this
definition of ‘‘general purpose motor’’ as
the definition of ‘‘general purpose
electric motor (subtype I).’’ 74 FR 12058,
12071 (March 23, 2009) (codified at 10
CFR 431.12) In the December 2008
NOPR, DOE did not propose any
changes to the definition of ‘‘general
purpose electric motor (subtype I).’’
DOE also did not propose any changes
to the definition of ‘‘general purpose
electric motor (subtype II)’’ in the
December 2008 NOPR because this term
was defined in section 313(a)(2) of EISA
2007 and was incorporated without
modification into 10 CFR 431.12. 74 FR
12071. The statute defines a subtype II
general purpose motor as any motor
incorporating the design elements of a
general purpose electric motor (subtype
I) configured as one of the following:
(i) A U-frame motor;
(ii) A Design C motor;
(iii) A close-coupled pump motor;
(iv) A footless motor;
(v) A vertical solid shaft normal thrust
motor (as tested in a horizontal
configuration);
(vi) An 8-pole motor (900 rpm); or
(vii) A polyphase motor with voltage
of not more than 600 volts (other than
230 or 460 volts).
(42 U.S.C. 6311(13)(B))
In response to the December 2008
NOPR, NEMA and Baldor commented
that Congress created confusion when it
struck the EPAct 1992 definition of
electric motor from section 340(13)(A)
of EPCA via section 313(a)(2) of EISA
2007 and subsequently inserted the
terms ‘‘general purpose electric motor
(subtype I)’’ and ‘‘general purpose
electric motor (subtype II)’’ under the
umbrella heading ‘‘Electric motor’’
without further clarification. According
to NEMA and Baldor, the DOE
definition of general purpose electric
motor (subtype I) does not provide the
essential elements that would
differentiate a general purpose electric
motor (subtype II) from a general
purpose electric motor (subtype I)—the
subtype II characteristics described in
the statute are also shared with subtype
I motors. Consequently, NEMA
requested that DOE clarify how it
intends to distinguish between a general
purpose electric motor (subtype I) and
general purpose electric motor (subtype
II), particularly because EISA 2007
prescribes different efficiency levels for
subtype I and subtype II motors.
Further, Baldor suggested that DOE
restore the original [EPAct 1992]
definition of electric motor, which was
struck by the EISA 2007 amendment to
EPCA, and from that [EPAct 1992]
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definition derive clear definitions to
differentiate general purpose electric
motor (subtype I) and (subtype II).
(NEMA, No. 12 at p. 11; Baldor, Public
Meeting Transcript, No. 8 at 116–119)
In addition, NEMA commented that
section 313(a)(2) of EISA 2007 defines a
general purpose electric motor (subtype
II) as one that incorporates the design
elements of a subtype I general purpose
electric motor and that is ‘‘configured as
1 of several distinct configurations, such
as ‘‘Design C’’ or ‘‘U–Frame’’
construction. (codified at 42 U.S.C.
6311(13)(A)–(B)). NEMA asked DOE to
clarify how it would interpret the clause
‘‘configured as 1 of’’ in EISA 2007’s
definition of general purpose electric
motor (subtype II). Otherwise, according
to NEMA, it is possible that a general
purpose motor could be configured in a
manner that uses combinations of the
various configurations specified by
EISA 2007, that is, a Design C motor
could be constructed in a U-frame.
(NEMA, No. 12 at p. 11)
In view of the above, DOE proposes
first to clarify the definition of ‘‘electric
motor’’ by describing what an electric
motor is and what it does, rather than
listing categories of covered electric
motors. Second, DOE proposes to clarify
the definition of ‘‘general purpose
electric motor (subtype I)’’ by specifying
certain design and performance
elements. Third, DOE proposes to
clarify the relationship between a
general purpose electric motor subtype
I and a general purpose electric motor
subtype II.
NEMA commented that the definition
of ‘‘general purpose electric motor
(subtype I)’’ in the December 2008 NOPR
is confusing because the only
identifying characteristic is that the
motor is ‘‘constructed for use in general
purpose applications or can be used in
most general purpose applications.’’
Further, NEMA asserted that design
characteristics (such as T-frame, single
speed, foot-mounting, polyphase,
squirrel-cage induction motor, Design A
and B, continuous rated, operating on
230/460 volts or constant 60 Hertz line
power, etc.), which were essential
elements under the EPAct 1992
definition of ‘‘electric motor,’’ are not
included in the EISA 2007 definition. In
addition, NEMA commented that when
[in 1999] DOE originally codified
regulations for electric motors into 10
CFR part 431, it determined that motors
designed in accordance with IEC
standards, and which could be used in
the same general purpose applications
as NEMA motors, be included as
covered equipment. 61 FR 60442–43,
60449–50 (November 27, 1996) and 64
FR 54131. Whereas the definition for
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‘‘general purpose electric motor (subtype
I),’’ proposed in the December 2008
NOPR, failed to include IEC motors of
similar design and use, NEMA
requested that DOE explicitly include
equivalent IEC motors as covered
equipment. (NEMA, No. 12 at pp. 9 and
11)
In view of the above comments, DOE
is proposing to clarify what constitutes
a ‘‘general purpose electric motor
(subtype I)’’ by referencing the
enumerated design and performance
elements under the definition of
‘‘electric motor,’’ set forth in EPCA, as
amended by EPAct 1992 and codified in
10 CFR 431.2 (January 1, 2000). DOE
would also include references to IEC
standards to clarify that IEC-equivalent
electric motors are subject to energy
conservation standards. DOE requests
comment on the following proposed
definition for ‘‘general purpose electric
motor (subtype I)’’:
General purpose electric motor (subtype
I) means a general purpose electric
motor that:
(1) Is a single-speed induction motor
(MG1);
(2) Is rated for continuous duty (MG1)
operation or for duty type S1 (IEC);
(3) Contains a squirrel-cage (MG1) or
cage (IEC) rotor;
(4) Has foot-mounting that may
include foot-mounting with flanges or
detachable feet;
(5) Is built in accordance with NEMA
T-frame dimensions (MG1) or their IEC
metric equivalents (IEC);
(6) Has performance in accordance
with NEMA Design A (MG1) or B
characteristics or equivalent designs
such as IEC Design N (IEC);
(7) Operates on polyphase alternating
current 60-hertz sinusoidal power, and:
(i) Is rated 230 or 460 volts (or both)
including motors rated at multiple
voltages that include 230 or 460 volts
(or both), or
(ii) Can be operated on 230 or 460
volts (or both); and
(8) Includes, but is not limited to,
explosion-proof construction.
Terms in this definition followed by
the parenthetical ‘‘MG1’’ must be
construed with reference to provisions
in NEMA Standards Publication MG1–
2009 and elements followed by the
parenthetical ‘‘IEC’’ must be construed
with reference to the IEC Standards. 10
CFR part 431, subpart B applies to
general purpose electric motors (subtype
I) even if the NEMA or IEC-equivalent
frame size or design element has been
discontinued or is discontinued in the
future.
To be consistent with the proposed
definition of ‘‘electric motor’’ and
corresponding use of the term ‘‘general
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purpose electric motor’’ in the definition
of ‘‘general purpose electric motor
(subtype I),’’ DOE proposes to amend the
definition of ‘‘general purpose motor’’ in
10 CFR 431.12 by adding the word
‘‘electric’’ in front of the word ‘‘motor’’ to
clarify that a general purpose motor is
a type of electric motor. Furthermore,
DOE proposes to update references to
NEMA MG1, from NEMA MG1–1993 to
NEMA MG1–2009 in this definition.
DOE distinguishes between a general
purpose electric motor subtype I and
subtype II based on whether the motor
is configured to have one or more of the
design or performance elements listed
in the definition of general purpose
electric motor (subtype II) at 42 U.S.C.
6311(13)(B). For example, a subtype I
motor could be built in accordance with
NEMA T-frame dimensions and could
have the performance characteristics of
a NEMA Design A motor. In contrast, a
motor built with all of the same design
elements as the above mentioned motor
but with the performance characteristics
of a NEMA Design C motor would be a
subtype II motor. To clarify this
interpretation of the statutory definition
of ‘‘general purpose electric motor
(subtype I),’’ DOE proposes to modify
the introductory text of the definition to
read, ‘‘means any general purpose
electric motor that incorporates design
elements of a general purpose electric
motor (subtype I) but, unlike a general
purpose electric motor (subtype I), is
configured in one or more of the
following ways.’’ For clarification, DOE
is also proposing to add references to
MG1 and IEC standards in the definition
of ‘‘general purpose electric motor
(subtype II)’’ to clarify the terms ‘‘Uframe,’’ ‘‘NEMA Design C,’’ and ‘‘vertical
solid shaft normal thrust motor.’’
Finally, DOE has received inquiries
regarding whether motors designed in
accordance with IEC standards are
covered motors under EPCA, as
amended by EISA, if there is no longer
a NEMA MG1-equivalent design
standard. Specifically, manufacturers
are requesting guidance as to whether
IEC 100 millimeter frame motors are
covered motors under EPCA, as
amended by EISA 2007, because the
equivalent NEMA 160 frame size was
discontinued as a standard NEMA
frame. Before EISA 2007 was enacted,
DOE addressed this question in the 1996
electric motors test procedure NOPR. 61
FR 60440, 60443 (November 27, 1996).
At that time, DOE considered whether
the proposed scenario was covered
under the then-current definition of
‘‘electric motor.’’ 6 The Department
6 Section 340(13)(A) of EPCA, as amended,
defined the term ‘‘electric motor’’ as ‘‘any motor
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tentatively decided that the IEC 100
millimeter frame motor was not covered
by EPCA because the ‘‘electric motor’’
definition required the motor to be a Tframe motor as defined in NEMA MG1–
1987, but the NEMA T-frame motor that
was equivalent to an IEC 100 millimeter
frame motor had been discontinued.
DOE has reassessed this previous
preliminary determination in light of
the EISA 2007 amendment that struck
the definition of ‘‘electric motor’’ relied
upon in the above analysis, and today’s
proposal to include references to IEC
standards to clarify that IEC-equivalent
electric motors are subject to energy
conservation standards. Upon
reconsideration of the issue, DOE
proposes that IEC 100 millimeter frame
motors, and other electric motors built
to IEC standards, that otherwise meet
the proposed definition of ‘‘general
purpose electric motor (subtype I)’’ are
covered motors under EPCA, even
though the NEMA-equivalent frame size
has been discontinued.
C. Definition of NEMA Design B Motor
In the December 2008 NOPR, DOE
proposed to adopt a definition for the
term ‘‘NEMA Design B, general purpose
electric motor.’’ 73 FR 78235. This
definition was based on the definition of
general purpose electric motor in
paragraph 1.19.1.2, ‘‘Design B,’’ of
NEMA MG1–2006 Revision 1, with
three changes. First the proposed
definition removed the reference to 50
hertz and corresponding performance
characteristics because the EISA 2007prescribed efficiency standards for
‘‘NEMA Design B, general purpose
electric motors’’ at 42 U.S.C.
6313(b)(2)(D) cover only 60-hertz
motors. (See NEMA MG–1 (2006) Table
12–11) Second, it limited the maximum
rated slip at rated load to less than 5
percent for motors with fewer than 10
poles, because the EISA 2007-prescribed
energy conservation standards only
cover 2-, 4-, 6-, and 8-pole motors and,
according to the footnote to MG1–2006
paragraph 1.19.1.2, motors with 10 or
more poles are permitted to have slip
slightly greater than 5 percent. Third, it
corrected the referenced 60-hertz
locked-rotor current paragraph from
12.35.3 to 12.35.1, because there is no
paragraph12.35.3 in MG1–2006 and the
table under paragraph 12.35.1 contains
the maximum currents associated with
a locked rotor.
which is a general purpose T-frame, single-speed,
foot-mounting, polyphase squirrel-cage induction
motor of the National Electrical Manufacturers
Association, Design A and B, continuous rated,
operating on 230/460 volts and constant 60 Hertz
line power as defined in NEMA Standards
Publication MG1–1987.’’
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653
Several interested parties expressed
concern over DOE’s proposed definition
for a NEMA Design B, general purpose
electric motor. NEMA and Baldor urged
DOE not to change the NEMA MG1
definition of Design B where it refers to
MG1–12.35.[2] for 50 hertz, stating that
the industry definition has existed for
many years and should be maintained,
and that EISA 2007 does not explicitly
limit coverage to 60 hertz. (Baldor,
Public Meeting Transcript, No. 8 at p.
159, NEMA, No. 12 at p. 10) NEMA also
noted that Table 12–11 of NEMA MG1
(the applicable efficiency standards for
NEMA Design B, general purpose
electric motors) applies both to 60-hertz
and 50-hertz rated motors. In sum,
NEMA requested that DOE incorporate
the definition of NEMA Design B,
general purpose electric motor from
NEMA MG1–2006 in its entirety and
refer to paragraph 1.19.1.2 of NEMA
MG1–2006. Notwithstanding this
request, NEMA asserts that it is not
condoning the inclusion of efficiency
standards for 50-hertz motors in 10 CFR
part 431. NEMA also commented that
even though NEMA Design B motors are
a subset of general purpose electric
motor (subtype I), if DOE deems it
necessary, NEMA would support adding
a separate definition for NEMA Design
B general purpose electric motor in
§ 431.12, as long as it was clearly
classified as a general purpose electric
motor (subtype I) with some specific
characteristics. (NEMA, No. 12 at p. 10)
In addition, the Northwest Energy
Efficiency Alliance (NEEA) agreed that
it could see no benefit to making
changes to an industry-wide and wellaccepted definition for a NEMA Design
B general purpose motor that includes
50-hertz motors and energy efficiency
levels for 8-pole motors. NEEA
recommended that DOE adopt the
NEMA MG1 1.19.1.2 definition without
amending it. (NEEA, No. 10 at pp. 2–3)
In response, due to the NEMA MG1
technical error in referencing section
12.35.3 for 60 Hz motors, DOE cannot
simply adopt or reference the NEMA
MG1 1.19.1.2 definition for Design B
without any amendments, as suggested
by NEMA and NEEA. Furthermore, it is
common and within DOE’s authority to
adopt a long-standing industry
definition and adapt the definition to
make it more precise for regulatory
purposes.
Therefore, DOE intends to adopt a
definition of NEMA Design B motor that
includes corrections to the reference to
section 12.35.1 of MG1. In addition, for
consistency with the footnote to the
definition in NEMA MG1–2009, DOE
intends to maintain the limitation that
the maximum rated slip at rated load to
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less than 5 percent for only motors with
fewer than 10 poles. DOE agrees with
commenters that there is limited benefit
to constraining the definition of NEMA
Design B to only 60-hertz motors.
Though DOE’s proposed definitions of
general purpose electric motor (subtype
I) and (subtype II) limit those
regulations to 60-hertz motors, DOE
could consider expanding energy
conservation standards to 50-hertz
motors in the future. Including
provisions for 50-hertz motors would
maintain consistency with the industry
definition and preserve DOE’s flexibility
to regulate electric motors covered
under EPCA. In addition, DOE believes
that it is inaccurate and inconsistent
with industry practice to narrowly
categorize NEMA Design B motors as
only a subset of general purpose electric
motor (subtype I). It is DOE’s
understanding that NEMA Design B
motors can also fall under the category
of general purpose electric motor
(subtype II) (e.g., a footless NEMA
Design B motor), or other type of electric
motor.
For all of these reasons, DOE proposes
to adopt a broad definition of a NEMA
Design B motor similar to that which
was proposed for ‘‘NEMA Design B,
general purpose electric motor’’ in the
December 2008 NOPR with three
revisions. First, DOE proposes to
include provisions regarding 50 hertz
motors. Second, DOE intends to modify
the proposal to update the reference to
‘‘NEMA MG1–2006’’ to ‘‘NEMA MG1–
2009.’’ Third, DOE proposes to eliminate
any reference to NEMA Design B motors
necessarily being general purpose
electric motors.
D. Fire Pump Motors Definition
EPCA section 342(b), as amended by
section 313(b)(1)(B) of EISA 2007 (Pub.
L. 110–140), prescribes energy
efficiency standards for fire pump
motors, which were subsequently
codified at 10 CFR 431.25(d). 74 FR
12072. However, section 340(13) of
EPCA, as amended by EISA 2007, does
not define the term ‘‘fire pump motor.’’
DOE proposed a definition for fire pump
motors in its December 2008 NOPR to
mean ‘‘a Design B polyphase motor, as
defined in NEMA MG1–2006, rated 500
horsepower (373 kW) or less, 600 volts
or less, and that is intended for use in
accordance with the National Fire
Protection Association (NFPA) Standard
20–2007, ‘Standard for the Installation
of Stationary Pumps for Fire
Protection.’ ’’ 73 FR 78235. In the NOPR,
DOE based the definition primarily on
the scope of the Underwriters
Laboratories (UL) Standard 1004A–
2001, ‘‘Fire Pump Motors,’’ and NFPA
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Standard 20–2007. Further, DOE
proposed to make two modifications to
the definition by inserting a publication
date for the cited NFPA standard and
correcting the title of NFPA Standard
20.
In response to the NOPR, NEMA
raised concerns that fire pump motors
should not be required to meet any
efficiency standards because they are
expected to operate on an emergency
basis for a relatively short time with
virtually no opportunity to save a
significant amount of energy. Further,
NEMA asserted that motors identified as
‘‘fire pump motors’’ are recognized by
the industry as both EPAct 1992 electric
motors or EISA 2007 general purpose
electric motors (subtype I) and,
therefore, should not be listed as a
separate motor type under the electric
motor definition as proposed in the
December 2008 NOPR. Notwithstanding
this argument, NEMA supports DOE
adding the definition of ‘‘fire pump
motor’’ to 10 CFR 431.12, provided that
it is characterized as being a ‘‘general
purpose electric motor (subtype I)’’ with
some specific characteristics. (NEMA,
No. 12 at pp. 8–9) Additionally, NEMA
noted that the UL Standard 1004A–
2001, ‘‘Fire Pump Motors,’’ has been
replaced by UL Standard 1004–5 (2008),
and that DOE should reference the
newest standard if it is necessary to
define a fire pump motor. (NEMA, No.
12 at pp. 8–9)
Similarly, other attendees at the
January 29, 2009, public meeting
questioned the proposed definition and
scope of coverage for fire pump motors.
(Baldor, Public Meeting Transcript, No.
8 at pp. 112–113, 116–119, 133–136)
DOE examined UL Standard 1004–5
(2008), including paragraph 1.2, which
reads as follows: ‘‘Standard covers
Design B polyphase motors, as defined
in NEMA MG 1, Motors and Generators,
rated 500 horsepower (373 kW) or less,
600 volts or less, that are intended for
use in accordance with NFPA 20, the
Standard for the Installation of
Centrifugal Fire Pumps.’’ DOE then
compared UL Standard 1004–5 (2008)
with the comparable text in UL
Standard 1004A–2001, which contains
virtually identical language and
concludes that the documents share the
same scope of coverage. In today’s
SNOPR, DOE proposes to further clarify
that a fire pump motor is an electric
motor that is required to meet certain
safety and performance requirements set
forth by NFPA Standard 20–2010,
section 9.5, and UL Standard 1004–5
(2008).
However, similar to DOE’s above
proposal to adopt a broad definition for
a NEMA Design B motor, DOE does not
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agree that fire pump motors are
necessarily a subset of general purpose
electric motors (subtype I) or general
purpose electric motors (as defined in
this SNOPR). It is DOE’s understanding
that all fire pump motors, irrespective of
whether they are considered general
purpose or meet the design constraints
of general purpose electric motor
(subtype I), would be subject to energy
conservation standards. For all of these
reasons, in today’s SNOPR DOE
proposes to define a fire pump motor as
an electric motor that is required to
meet the performance and construction
requirements set forth by NFPA
Standard 20–2010, section 9.5, and UL
Standard 1004–5 (2008).
E. Fire Pump Motor Coverage
Section 313(b)(1)(B) of EISA 2007
amends EPCA section 342(b), to
prescribe energy conservation standards
for fire pump motors by referring to
NEMA MG 1–2006 Table 12–11. That
provision reads as follows:
(B) FIRE PUMP MOTORS—Each fire
pump motor manufactured (alone or as
a component of another piece of
equipment) after the 3-year period
beginning on the date of enactment of
the Energy Independence and Security
Act of 2007 shall have nominal full load
efficiency that is not less than as
defined in NEMA MG–1 (2006) Table
12–11.
(42 U.S.C. 6313(b)(2)(B))
On March 23, 2009, DOE published a
technical amendment to 10 CFR part
431 to adopt the energy conservation
standards for fire pump motors
prescribed by EISA 2007. 74 FR 12058,
12072. The technical amendment
codified the energy conservation
standards for fire pump motors,
contained in Table 12–11 of NEMA
Standards Publication MG1–2006 (and
Revision 1 to MG1–2006) which
contains energy efficiency values from 1
through 500 horsepower and covers 2pole, 4-pole, 6-pole, and 8-pole, open
and enclosed fire pump motors. 74 FR
12061, 12072.
During the January 29, 2009, public
meeting there appeared to be some
confusion over whether the covered
range of horsepowers for fire pump
motors is 1–200 horsepower or 1–500
horsepower. (GE, Public Meeting
Transcript, No. 8 at p. 147; Navigant
Consulting, Public Meeting Transcript,
No. 8 at pp. 147–148; WEG, Public
Meeting Transcript, No. 8 at pp. 148–
149; NEMA, No. 12 at pp. 8–9; NEEA,
No. 10 at p. 2). Further, Baldor alluded
to an excerpt of the language under
EPCA section 342(b), as amended by
section 313(b)(1)(B) of EISA 2007,
which provides ‘‘GENERAL PURPOSE
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ELECTRIC MOTORS (SUBTYPE I).—
Except as provided in subparagraph (B),
each general purpose electric motor
(subtype I) with a power rating of 1
horsepower or greater, but not greater
than 200 horsepower.’’ (42 U.S.C.
6313(b)(2)(A)) Baldor opined that
whether a fire pump motor covered
under 42 U.S.C. 6313(b)(2)(B) was
limited to the same 1–200 horsepower
range as a general purpose electric
motor (subtype I) was a matter of
statutory interpretation. (Baldor, Public
Meeting Transcript, No. 8 at pp. 112–
113,145, 149–50).
DOE understands that EISA 2007
section 313(b)(1)(A) sets energy
conservation standards for general
purpose electric motors (subtype I) with
a rating of 1 through 200 horsepower
and clearly excepts fire pump motors
from this subsection. (42 U.S.C.
6313(b)(2)(A)) EISA 2007 section
313(b)(1)(B), which prescribes energy
conservation standards for fire pump
motors, does not, however, explicitly
limit the standard based on a motor’s
horsepower rating. (42 U.S.C.
6313(b)(2)(B)) Instead, fire pump motor
manufacturers are required to meet the
requirements of NEMA Standard MG1–
2006 Table 12–11, which covers 1
through 500 horsepower motors. (42
U.S.C. 6313(b)(2)(B)) Consequently,
DOE continues to believe that energy
conservation standards DOE
promulgated in its March 23, 2009,
technical amendment are the logical
result of provisions set forth in EISA
section 313(b)(1)(B) and cannot be
construed as being a subset of
subsection EISA section 313(b)(1)(A) or
subject to any constraints contained in
subparagraph (A), including horsepower
rating constraints. DOE, therefore,
proposes in today’s SNOPR that fire
pump motor energy conservation
standards apply to fire pump motors
rated 1 through 500 horsepower.
F. Energy Conservation Standards for
Electric Motors
In addition to the above comments
submitted about the definitions for
‘‘electric motor,’’ ‘‘general purpose
electric motor (subtype I),’’ ‘‘general
purpose electric motor (subtype II),’’
‘‘NEMA Design B motor,’’ and ‘‘fire
pump motor,’’ commenters also
submitted comments (shown below)
requesting clarification of the tables of
electric motor efficiency standards in 10
CFR 431.25.
DOE’s current regulations require
manufacturers of ‘‘electric motors’’ to
comply with the energy efficiency levels
in 10 CFR 431.25(a), which were
prescribed by EPAct in 1992, but do not
specify a sunset date. Section 313(b) of
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EISA 2007 amended EPCA to prescribe
energy conservation standards for
general purpose electric motors (subtype
I and subtype II), with a compliance
date of December 19, 2010. (42 U.S.C.
6313(b)(2)) These standards, and the
compliance date, were subsequently
codified at 10 CFR 431.25(c) and (e)
respectively. Because EPAct does not
specify an apparent terminus for the
1992 efficiency levels, NEMA argued
that this was potentially confusing for
manufacturers to decide which
provisions apply—the EPAct 1992
levels or the EISA 2007 levels.
Consequently, NEMA requested
guidance on the proper energy
conservation standards for general
purpose electric motors (subtype I).
(NEMA, No. 12 at p. 9) To address this
issue, DOE proposes to delete 10 CFR
431.25(a) to clarify that the standards in
this section no longer apply.
In view of the above statutory history
and relationship of EPCA to EPAct 1992
and to EISA 2007, DOE believes that the
electric motor standards prescribed by
EPAct 1992 apply only to general
purpose electric motors (subtype I). DOE
proposes that electric motors covered
under EPAct 1992 (general purpose
electric motor (subtype I)), which are
manufactured or imported prior to
December 19, 2010, were subject to the
EPAct 1992 energy conservation
standards codified at 10 CFR 431.25(a).
Further, DOE proposes that a general
purpose electric motor (subtype I) that
is manufactured or imported on or after
December 19, 2010, is subject to the
EISA 2007 energy conservation
standards that are codified at 10 CFR
431.25(c).
In addition, in the December 2008
NOPR, DOE did not explicitly state that
a NEMA Design B general purpose
electric motors that otherwise meets the
definition of a general purpose electric
motors (subtype I) is subject to the EISA
2007 energy conservation standards that
are codified at 10 CFR 431.25(c) NEMA
expressed concern in responding to the
December 2008 NOPR that given the
proposed definitions and structure of 10
CFR 431.25, NEMA Design B general
purpose electric motors rated 1
horsepower or greater, but not greater
than 200 horsepower, would appear to
remain at the levels established by
EPAct 1992 (codified at 10 CFR
431.25(a)).
To clarify the scope of energy
conservation standards for NEMA
Design B motors from 1 through 200
horsepower, DOE proposes two
modifications of 10 CFR 431.25. First,
because general purpose electric motors
(subtype I) include certain NEMA
Design B motors, DOE proposes to
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specify that NEMA Design B motors,
rated 1 through 200 horsepower, that are
also general purpose electric motors
(subtype I), are subject to energy
conservations standards in 10 CFR
431.25(c). Second, and similarly, as
general purpose electric motors (subtype
II) include certain NEMA Design B
motors (e.g., footless motors), DOE
proposes to specify that NEMA Design
B motors, rated 1 through 200
horsepower, that are also general
purpose electric motors (subtype II), are
subject to energy conservation standards
in 10 CFR 431.25(e).
EISA 2007 also established energy
conservations standards for ‘‘NEMA
Design B, general purpose electric
motors’’ rated greater than 200
horsepower but less than or equal to 500
horsepower, which were later codified
into the current version of 10 CFR
431.25(f). NEMA asserts that the motor
industry recognizes a ‘‘NEMA Design B,
general purpose electric motor’’ as a
specific group of motors that fit the
definition of either ‘‘electric motor’’ from
EPAct 1992 or ‘‘general purpose electric
motor (subtype I)’’ from EISA 2007.
DOE notes that EISA 2007 did not
define ‘‘NEMA Design B, general
purpose electric motor,’’ ‘‘NEMA Design
B motor,’’ or ‘‘general purpose electric
motor.’’ In the absence of any statutory
definition, DOE views the regulatory
definition of ‘‘general purpose motor’’
that was in place on EISA2007’s
enactment date as the proper definition
for ‘‘general purpose electric motor’’ as
used in the term ‘‘NEMA Design B,
general purpose electric motor.’’ The
‘‘general purpose motor’’ definition in
place at the time of EISA’s enactment is
the same as the ‘‘general purpose electric
motor’’ definition proposed today, with
minor differences for standards updates.
DOE proposes that this definition, read
in conjunction with the definition of
‘‘NEMA Design B’’ proposed in today’s
SNOPR, delineates the motors regulated
under 10 CFR 431.25(f). DOE realizes
that this interpretation could potentially
include NEMA Design B motors that are
general purpose electric motors that do
not meet the proposed definition of
‘‘general purpose electric motor (subtype
I)’’ or ‘‘general purpose electric motor
(subtype II).’’ It is DOE’s understanding,
however, that there are few, if any,
NEMA Design B motors that would be
neither a subtype I or subtype II general
purpose electric motor. DOE requests
comment on this specific issue. Based
on these comments and any additional
information collected, DOE may revise
this proposed approach.
NEMA also noted that the energy
efficiency standards tables contained in
10 CFR 431.25(c)–(f) list motor ratings
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in horsepower but not equivalent
kilowatts. NEMA requested that DOE
include kilowatt power ratings in the
newly codified tables that promulgate
the EISA 2007 efficiency standards.
(NEMA, No. 12 at p. 9) Without this
change, NEMA raised concerns that
metric-rated motors would not be
covered. To ensure that the tables under
10 CFR 431.25(c)–(f) apply to metricrated, kilowatt-equivalent motors, DOE
proposes to amend the tables to provide
an equivalent kilowatt rating for each
horsepower. Although the EISA 2007
definition for general purpose electric
motor (subtype I and subtype II) does
not specifically mention motors rated in
kilowatts, as motors are rated under
(IEC) standards, DOE believes that the
statute covers IEC motors that are
identical or equivalent to motors
included in the statutory definition.
DOE understands that IEC motors
generally can perform the identical
functions of EISA-covered electric
motors. Comparable motors of both
types provide virtually identical
amounts of rotational mechanical
power, and generally can operate or
provide power for the same pieces of
machinery or equipment. A given
industrial central air conditioner, for
example, could operate with either an
IEC or NEMA motor with little or no
effect on performance. Providing
equivalent kilowatt/horsepower ratings
would be consistent with the EPAct
1992 levels that are codified at 10 CFR
431.25(a), and would clarify the
applicability of these standards levels.
Finally, DOE proposes to clarify in 10
CFR 431.11 that the electric motors
covered under subpart B are not small
electric motors. DOE believes that this
clarification is necessary because
electric motors (covered under 10 CFR
part 431, subpart B) and small electric
motors (covered under 10 CFR part 431,
subpart X) are separate and unique
covered equipment with particular
regulatory requirements.
G. References to International
Electrotechnical Commission, National
Electrical Manufacturers Association,
Institute of Electrical and Electronics
Engineers, and Canadian Standards
Association Standards for Electric
Motors
After EISA 2007 struck and replaced
the definition of electric motor under 42
U.S.C. 6311(13), DOE subsequently
proposed in the December 2008 NOPR
to remove the corresponding test
standards incorporated by reference
under 10 CFR 431.15. These test
standards helped clarify critical
elements in the definition of electric
motor under 10 CFR 431.12. 73 FR
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78227. The standards incorporated by
reference included IEC Standards
60034–1 (1996), 60050–411 (1996),
60072–1 (1991), and 60034–12 (1980).
NEMA commented that when DOE
adopted the content of EPAct 1992 into
10 CFR part 431, it recognized the
necessity of including equivalent motors
designed in accordance with IEC
standards that could be used in the
same applications as motors designed in
accordance with NEMA MG1 standards.
Although the IEC standards do not
particularly identify ‘‘general purpose
motors,’’ motors built according to IEC
specifications can be used
interchangeably with NEMA motors in
most general purpose applications.
Because of this fact, NEMA argued that
the applicable IEC standards should be
retained in 10 CFR part 431, and that
motors constructed in accordance with
those standards in metric-equivalent
ratings should be considered as covered
equipment under 10 CFR part 431.
(NEMA, No. 10 at p. 10)
DOE previously took such an
approach when addressing IEC metric
motors in the final test procedure rule
for electric motors at 64 FR 54142
(October 5, 1999). The inclusion of
parenthetical references to the IEC
standards in the codified definition of
‘‘electric motor’’ under 10 CFR 431.2
(2000) clarified the applicability and
coverage of IEC (i.e. metric-equivalent)
electric motors. For example, under the
EPAct 1992 definition of ‘‘electric
motor,’’ a motor had to be ‘‘continuous
rated.’’ DOE later clarified ‘‘continuous
rated’’ in 10 CFR 431.2 (2000) to mean
‘‘is rated for continuous duty (MG1)
operation, or is rated duty type S1
(IEC).’’ Although the then-statutory
definition did not explicitly mention
IEC motors, DOE proposed that the term
‘‘continuous rated’’ apply to those
electric motors that are equivalent to the
‘‘continuous duty operation’’ rating
denoted by the parenthetical ‘‘MG1’’ or
the equivalent IEC duty type ‘‘S1.’’ (See
61 FR 60440, 60442 (November 27,
1996) where it states that ‘‘[A]lthough
the statutory definition of ‘electric
motor’ does not specifically mention
IEC motors, the Department believes
that the Act covers IEC motors that are
identical or equivalent to motors
included in the statutory definition.’’)
DOE later codified this approach at 10
CFR 431.2. 64 FR 54143 (October 5,
1999).
DOE believes that EISA 2007 provides
the same breadth of coverage over IEC
motors that are identical or equivalent
to electric motors built in accordance
with MG1. As discussed earlier in this
SNOPR, DOE is proposing a revised
definition of ‘‘general purpose electric
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motor (subtype I)’’ and ‘‘general purpose
electric motor (subtype II)’’ which would
incorporate IEC-equivalent motors.
Thus, DOE proposes to maintain IEC
standards incorporated by reference in
10 CFR 431.15. In addition, DOE
proposes to adopt the updated versions
of two of the IEC standards, IEC
Standards 60034–1 and 60034–12, to the
2004 and 2007 versions, respectively.
NEMA also notes that a source to
obtain IEC standards does not appear in
10 CFR 431.15(d). (NEMA, No. 10 at p.
10) In response to NEMA’s comment,
DOE proposes to reorganize and update
10 CFR 431.15 to include each standard
incorporated by reference with
corresponding updated information
about how to obtain copies of these
documents.
In addition, DOE notes that several
electric motor definitions and sections
of 10 CFR part 431 reference outdated
standards, such as NEMA MG1–1993,
IEEE 112–1996 Test Method B, CAN/
CSA C390–93 (Test Method 1). In this
SNOPR, DOE proposes to update the
following references throughout 10 CFR
part 431 to be consistent with current
industry standards: NEMA MG1–2009,
IEEE 112–2004 Test Method B, and
CAN/CSA C390–10. DOE believes that
the exceptions to IEEE 112–1996 Test
Method B contained in paragraph (2) of
appendix B to subpart B, 2. Test
Procedures, are contained in the
updated version of IEEE 112–2004 Test
Method B, although DOE accepts
comments on this assessment. DOE does
not believe that the updated standards
and test procedures will adversely affect
the measured losses and determined
efficiency of an electric motor, nor
significantly change the meaning of a
definition. Finally, NEMA recently
provided comments on the electric
motors framework document indicating
that while the test data collection
methods for the updated versions of
IEEE 112–2004 Test Method B and
CAN/CSA 390–10 are the same, there
are differences in the methods in which
the efficiency is determined from the
data.7 (NEMA, No. 0013 at p. 2) DOE
requests comment on this issue.
H. National Institute of Standards and
Technology/National Voluntary
Laboratory Accreditation Program
Handbook 150–10 Update and Checklist
In the December 2008 NOPR, DOE
proposed updating the current reference
to the 1995 edition of the NIST
7 The written comments cited in this paragraph
were submitted to the docket of the energy
conservation standards rulemaking for electric
motors (refer to https://www.regulations.gov, Docket
No. EERE–2010–BT–STD–0027; RIN number 1904–
AC28).
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Handbook 150–10 to the 2007 edition.
73 FR 78228. Although following the
NIST/NVLAP Handbook is not a
required part of the electric motors test
procedure, the Handbook provides
important guidance for assuring testing
laboratory competency and is used by
test facilities seeking accreditation
under 10 CFR 431.18, 431.19, and
431.36(a)(2).
At the January 30, 2009, public
meeting, Baldor Electric expressed
concern that an update to NIST/NVLAP
Handbook 150–10 could be problematic
because it refers to test methods that are
different from the updated test methods
proposed by DOE. For example, the
NIST/NVLAP Handbook 150–10 refers
to proficiency in IEEE 112–1996 Test
Method B and CSA C390–93 Test
Method 1 to become an accredited
laboratory. (Baldor, Public Meeting
Transcript, No. 8 at p. 178) Because
these industry test methods have been
revised, DOE proposed to update 10
CFR 431.16, appendix A to subpart B,
and 10 CFR 431.15 to be consistent with
current industry practice. 73 FR 78228.
Also, DOE proposed that NIST review
this matter and consider updating the
industry test methods referenced in its
NIST/NVLAP Handbook 150–10.
Subsequently, NIST reviewed its
Handbook 150–10 and issued a formal
Laboratory Bulletin on March 19, 2009
(Lab Bulletin LB–42–2009) about the
Efficiency of Electric Motors Program.
The Lab Bulletin made a series of
updates and corrections. Although NIST
did not update its references to CSA
C390–93 Test Method 1, DOE and NIST
have evaluated the differences between
the 1993 version and the updated
version of the Canadian standard and
have initially determined that there is
no substantive difference between the
two standards that would result in a
significant change in measured
efficiency. Therefore, DOE is proposing
to adopt NIST/NVLAP Handbook 150–
10 that references IEEE 112–2004
(November 2001), CSA C390–10 (March
2010), and NEMA MG1–2009 (April
2009).
A second issue relating to NIST/
NVLAP Handbook 150–10 was raised
both at the January 30, 2009 public
meeting and in subsequent written
comments. Baldor commented that
while the NIST/NVLAP 150–10
Handbook is available online, Baldor
has had difficulty locating the current
checklist, formerly in the 1995 version
of the handbook, which systematically
lists the laboratory testing requirements
and the applicable test procedures.
Further, the 2007 edition of the
handbook does not address the test
procedure used for accrediting a
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laboratory. (Baldor, Public Meeting
Transcript, No. 8 at pp. 166–167) NEMA
commented that it found a ‘‘significant
difference’’ between the 1995 and 2007
editions of the NIST/NVLAP Handbook
150–10. NEMA noted that the 1995
edition provides (1) information on the
required accuracy of the test equipment,
(2) details of the test procedure to be
used for testing induction motors, and
(3) a checklist for the purpose of
evaluating the test facility. NEMA
expressed concern that the 2007 edition
does not contain that technical
information. NEMA noted that
according to clause 1.6.2 of NIST/
NVLAP Handbook 150–10 (2007), all
NVLAP programs use a NIST Handbook
150 Checklist, but the document is not
easily found on the NIST Web site at
https://www.nist.gov/. NEMA
commented that DOE should not
reference the 2007 edition of NIST/
NVLAP Handbook 150–10 until the
NIST/NVLAP Handbook 150–10
Checklist is available to the public and
DOE has examined it to be certain it
contains the same information about the
accuracy of test equipment and the
procedure for testing that is in the 1995
edition. NEMA requests that if DOE
finds the checklist to be a proper
substitute for the provisions in the 1995
edition, then DOE should update 10
CFR 431.15(e)(2)(i) to refer to the 2007
edition of NIST/NVLAP Handbook 150–
10 and add the 2007 Checklist 150–10
to the list of documents incorporated by
reference. (NEMA, No. 12 at pp. 11–12)
DOE consulted with NIST on this
matter and learned that the NIST/
NVLAP Handbook 150–10 (2007)
Checklist is available on the NIST Web
site at: https://ts.nist.gov/Standards/
Accreditation/upload/NIST_HB_150_
10_Checklist.pdf. Although there are
minor differences between the 1995 and
2007 Checklists, DOE is satisfied with
the rigor and requirements presented in
the 2007 Checklist, which NIST has
established as the requirements for
accreditation of a laboratory under
NIST/NVLAP Handbook 150–10.
However, DOE does not agree with
NEMA’s recommendation to incorporate
by reference the NIST/NVLAP
Handbook 150–10 (2007) checklist into
10 CFR 431.15(e). The checklist is not
a requirement of the test procedure
itself, but rather a document used to
accredit a testing facility as being
capable of conducting the necessary
tests for evaluating the energy efficiency
of an electric motor. Finally, while DOE
is aware that the 2007 version of the
checklist references IEEE 112–1996 and
MG1–1993, DOE considers these
referenced documents to be updated by
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NIST Lab Bulletin LB–42–2009, issued
on March 19, 2009. DOE has also asked
NIST to further update the referenced
standards to include IEEE 112–2004,
CSA C390–10, and NEMA MG1–2009.
I. Appendix A to Subpart B of Title 10
of the Code of Federal Regulations Part
431
Section 313(a)(2) of EISA 2007
amended EPCA section 340(13)(A) to set
forth a new definition of ‘‘electric
motor,’’ which included motors not
previously covered under EPCA, such as
a footless motor, close-coupled pump
motor, and a vertical solid shaft normal
thrust motor. Prior to EISA 2007, the
Policy Statement, under appendix A to
subpart B of 10 CFR part 431, provided
interpretive guidance as to which types
of motors DOE viewed as covered under
EPCA and how DOE would apply
energy conservation standards to
electric motors that are components of
certain equipment. To accommodate the
changes to section 340(13)(A) of EPCA
that EISA 2007 introduced, which
removed much of the basis for DOE’s
previous interpretive guidance, in the
December 2008 NOPR, DOE proposed to
delete the contents of appendix A to
subpart B, and replace the existing
policy statement with the term
‘‘[Reserved].’’ DOE also proposed to
maintain the outline structure of this
subpart should DOE decide in the future
to clarify the scope of covered electric
motors in its regulations. 73 FR 78228
and 78237.
During the January 29, 2009, public
meeting, Baldor commented that
removing the guidelines from appendix
A to subpart B of 10 CFR part 431 would
result in no guidance at present and
leave open the possibility to greatly
expanded guidance in the future.
(Baldor, Public Meeting Transcript No.
8, p. 118)
To address this possibility, DOE is
proposing, as an alternative, to revise
the contents of appendix A to provide
guidance that corresponds with EISA
2007 regarding general purpose electric
motors. As guidance, appendix A
represents DOE’s interpretation of
existing statutes and regulations but
does not, and is not intended to, have
the force and effect of law.
Specifically, DOE proposes to
eliminate references to enactment dates
that are no longer applicable and update
the scope of coverage to include general
purpose electric motors (subtype I) and
general purpose electric motors (subtype
II). DOE is not proposing to provide
guidance in-line with EISA 2007 for fire
pump or NEMA Design B motors
because DOE does not think such
guidance is necessary at this time,
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although DOE may add such guidance at
a future date.
In addition, the Policy Statement
addresses the bounds of standard shaft
dimensions applicable to general
purpose electric motors (subtype I) and
general purpose electric motors (subtype
II). It is DOE’s understanding that
NEMA Standard MG1–2009 and IEC
Standard 60072–1 (1991) specify
tolerances for the shaft extension
diameter and keyset that relate to the fit
between the shaft and the device
mounted on the shaft. DOE is aware that
shafts of special diameter, length, or
design are often provided at a
customer’s request for use in particular
applications. However, there are electric
motors with non-standard shafts which
could be used in most general purpose
applications and would then be
considered ‘‘general purpose electric
motors (subtype I)’’ and ‘‘general
purpose electric motors (subtype II).’’
DOE has received inquiries regarding
whether motors with shaft designs that
are not necessarily in conformance with
the standard shaft types and dimensions
in NEMA MG1 or IEC 60072–1 are
covered under EPCA. (Baldor, No. 16;
WEG, No. 17) In response to such
inquiries and in view of possible
confusion in the marketplace, DOE is
proposing to add guidance on shaft
diameter, length, shoulder location, and
special designs under section III of
appendix A to subpart B of 10 CFR part
431.
DOE’s guidance specifies the range of
variation in motor characteristics
beyond which DOE interprets a motor to
no longer be general purpose for some
specific technical design features. DOE
provides this guidance to help avoid
market conditions where motor
manufacturers and manufacturers of
equipment using motors avoid increases
in motor efficiency by making technical
changes in motor characteristics that do
not make substantial changes in motor
application or use. DOE considers an
empirical test of whether a particular
motor design variant can be used in
many general purpose applications to be
whether many users of general purpose
motors might be willing to switch such
motor design variants given a relatively
modest price differential between a
general purpose motor and the motor
design variant.
Four general purpose motor design
features that may technically be
changed while maintaining the general
purpose application of a motor include:
(1) Shaft diameter, (2) shaft length,
(3) shoulder location, and (4) special
shaft design features. In the proposed
regulatory text, DOE provides the
following guidance on the amount of
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variation from standard characteristics
that maintains the general purpose
classification of a motor.
For shaft diameter, DOE provides
guidance that any variation in the shaft
diameter between the standard shaft
diameter of the next lower and higher
frame numbers series maintains the
general purpose classification of a
motor.
For shaft length, DOE provides
guidance that any shaft length between
and inclusive of 0.5 to 1.25 times the
standard shaft length of the motor
maintains the general purpose
classification of the motor.
For shoulder location, DOE provides
guidance that an increase less than or
equal to 25% in either the ‘‘BA’’ (MG1)
or ‘‘C’’ (IEC) dimensions of the standard
motor frame dimensions maintains the
general purpose classification of the
motor.
For special shaft designs, DOE
provides guidance that the special shaft
designs of a flat section in shaft (for
pulley mounting), and shafts with a
threaded hole maintain the general
purpose classification of the motor.
Alternatively, DOE is proposing
guidance that shafts with threads on the
outside of the shaft or a stepped shaft do
not currently maintain their general
purpose classification. If DOE receives
information that manufacturers are
switching to motors with outside thread
and stepped shaft design variants to
avoid efficiency improvements, then
DOE may change the guidance to
classify motors with outside threads and
stepped shafts as general purpose
electric motors.
J. Definition of Small Electric Motor
Subsequent to the publication of the
July 7, 2009, small electric motor test
procedures final rule (74 FR 32059),
Baldor expressed concern over the
clarity of certain key terms contained
within the statutory definition of a small
electric motor, asking DOE to clarify the
statutory definition of ‘‘small electric
motor’’ by interpreting key phrases in
the definition, specifically: ‘‘General
purpose,’’ ‘‘induction motor,’’ ‘‘two-digit
frame number series,’’ and ‘‘IEC metric
equivalent motors.’’ (Baldor, No. 15 at p.
2) Baldor suggested that DOE consider
clarifying the definition by adding
parenthetical identifiers ‘‘(MG1)’’ and
‘‘(IEC)’’ to the definition after each of
these four key phrases to indicate the
industry reference from which DOE
interprets the meaning of that phrase.
(Baldor, No. 15 at p. 2) These citations
would then be expanded upon in the
second paragraph of the definition by
providing explicit references to the
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relevant sections of these industry
documents. (Baldor, No. 15 at pp. 2–3)
DOE is currently involved in litigation
regarding the final rule on energy
conservation standards for small electric
motors. 75 FR 10874 (March 9, 2010).
Because the definition of ‘‘small electric
motor’’ is at issue in the litigation, it is
inappropriate for DOE to respond to
Baldor’s concerns at this time.
K. Canadian Standards Association Test
Procedures for Small Electric Motors
In the December 2008 NOPR, DOE
proposed three test methods from which
a manufacturer could select to measure
the energy efficiency of its covered
small electric motors: IEEE Standard
114, IEEE Standard 112, or CAN/CSA
Standard C747–94. 73 FR 78223, 78238.
The choice of test procedures was
consistent with the choice of test
methods for electric motors listed in 10
CFR 431.16, where a manufacturer
could select either an IEEE or CSA test
method for determining the efficiency of
covered 1–200 horsepower electric
motors. DOE adopted IEEE Standard
114–2001 for single-phase small electric
motors and both IEEE Standard 112–
2004 Test Method A and Test Method
B in its final rule for small electric
motors test procedures. 74 FR 32065–
32066, 32073–74. Since IEEE Standard
112 Test Method A applies to polyphase
small electric motors below 1 kilowatt
(1.34 horsepower), DOE determined that
Test Method A would apply to
polyphase small electric motors rated at
or below 1 horsepower, which is the
first common horsepower rating below 1
kilowatt (1.34 horsepower). Similarly,
IEEE Standard 112 Test Method B
would be applicable to polyphase small
electric motors rated greater than 1
horsepower. DOE also adopted CAN/
CSA–C747–94 as an alternative test
method for single-phase motors. In the
small electric motors test procedure
final rule, DOE stated that it was not
adopting any alternative test methods
for polyphase small electric motors
based on CAN/CSA–747–94 or CAN/
CSA–C390–10 Test Method 1 because
there may be an inconsistency in the
measured efficiency associated with
units tested under IEEE Standard 112–
2004 Test Method B and CAN/CSA–
C747–94. 74 FR 32066.
In today’s SNOPR, DOE proposes that
a manufacturer may test according to:
(1) CAN/CSA C747–09 as an alternative
to IEEE Standard 112 Test Method A for
polyphase small electric motors rated
less than or equal to 1 horsepower
(0.746 kilowatt); and (2) CAN/CSA–
C390–10, as an alternative to IEEE
Standard 112 Test Method B for
polyphase small electric motors that
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have a rating greater than 1 horsepower
(0.746 kilowatt). DOE believes that
using the CAN/CSA Standard C747–09
or CAN/CSA Standard C390–10 in this
manner will result in consistent
measurements of energy efficiency
compared to the applicable IEEE
Standard 112 and IEEE Standard 114
test methods adopted in the small
electric motors final rule and helps
promote harmonization of test methods
internationally.
L. Small Electric Motor Represented
Efficiency Value
In DOE’s notice proposing energy
conservation standards for small electric
motors, the term ‘‘nominal full load
efficiency’’ was defined as the arithmetic
mean of the full load efficiency of a
population of motors. DOE received
numerous comments on this definition,
all of which are summarized in its final
rule on energy conservation standards
for small electric motors. 75 FR 10874
(March 9, 2010). Ultimately, DOE agreed
with comments made by NEMA and
Baldor and concluded in its final rule
that it was not bound to establish energy
conservation standards in terms of
nominal efficiency. Instead, DOE
established energy conservation
standards for small electric motors in
terms of ‘‘average full load efficiency.’’
75 FR 10914.
At the NOPR public meeting for small
electric motor energy conservation
standards, held December 17, 2009,
Baldor made several comments
regarding DOE’s proposed definition for
‘‘nominal full load efficiency’’ pertaining
to small electric motors. 74 FR 61500
(November 24, 2009). First, Baldor
commented that the proposed definition
was too similar to the existing definition
for ‘‘average full load efficiency’’ and
that it differed from the definition in
NEMA MG–1, which would confuse
users of that voluntary industry
guidance. (Baldor, Public Meeting
Transcript, No. 20.4 at pp. 112, 126–27).
75 FR 10914 (March 9, 2010). Next,
Baldor commented that the proposed
definition provided no guidance for
what constitutes a population of motors,
and suggested that the term be clarified.
(Baldor, Public Meeting Transcript, No.
20.4 at pp. 112–13) These two
comments were echoed by NEMA in its
written comments. (NEMA, No. 24 at
pp. 10–16) Finally, Baldor commented
that the proposed definition infers that
the arithmetic mean of the full-load
efficiencies of the population of motors
is known and that the nominal full load
efficiency must be specified to be equal
to the arithmetic mean, which would
provide no limit to the number of
different values of efficiency that might
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be marked on nameplates. In other
words, there are many populations or
production runs of motors of identical
design, wherein each motor could have
a slightly different efficiency because of
variations in materials, the
manufacturing process, and testing
equipment. Consequently, there could
be no limit to the different arithmetic
averages marked on small motor
nameplates. As such, Baldor requested
further clarification on the
determination of any relationship
between nominal full load efficiency
and calculated efficiency. (Baldor,
Public Meeting Transcript, No. 20.4 at
pp. 114, 125) 8
In response to the December 2008
NOPR about test procedures for small
electric motors, NEMA also sought
clarity on the use of the term ‘‘nominal
full load efficiency.’’ NEMA noted that
DOE had not provided information on
the value of efficiency for which test
results are to be compared for the
purpose of determining compliance.
NEMA asked how DOE would require
the full load efficiency to be represented
on small electric motors, noting that
motors are not marked with the average
full load efficiency. (NEMA, No. 12 at p.
3).
In developing today’s SNOPR, DOE
considered the relevant comments
submitted to the energy conservation
standards and test procedures
rulemakings. DOE recognizes that its
standards for electric motors and small
electric motors use different metrics—
i.e. nominal full load efficiency (electric
motors) and average full load efficiency
(small electric motors). The nominal
efficiency values for electric motors are
based on a logical sequence of standard
values in NEMA Standard MG1 Table
12–10 and is familiar to motor users.
However, there is no comparable set of
standardized values adopted by NEMA
for small electric motors and there is no
statutory requirement that efficiency
standards for these motors be set in
terms of their nominal full load
efficiency. 74 FR 61431–32 (November
24, 2009).
As mentioned earlier, DOE
established energy conservation
standards in terms of ‘‘average full-load
efficiency’’ in the final rule. 75 FR
10914, 10947 (March 9, 2010). The
analyses and results supporting the final
energy conservation standards levels for
small electric motors were calculated
using a metric of average efficiency and
DOE in this SNOPR proposes
8 The written comments cited in this paragraph
were submitted to the docket of the small electric
motors energy conservation standards rulemaking
(Docket No. EERE–2007–BT–STD–0007; RIN
number 1904–AB70).
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procedures for reporting the average full
load efficiency of motors, consistent
with the conservations standards for
small electric motors. With respect to
the term ‘‘nominal full load efficiency,’’
since this term is not used in the small
electric motors standard, DOE proposes
leaving the term undefined. If DOE
amends this test procedure to measure
the nominal full load efficiency of small
electric motors, this change will alter
the applicable metric and will require a
change in the standard levels for small
electric motors to reflect the change in
the efficiency metric. (42 U.S.C.
6293(e)). However, DOE understands
Baldor’s concern to be primarily related
to the ambiguity of the definitions
proposed in the energy conservations
standards NOPR and recognizes that the
represented efficiency value has yet to
be defined. Therefore, in this SNOPR,
DOE proposes procedures for
determining the represented efficiency
for small electric motors where the
represented efficiency is that efficiency
that corresponds to a 5 percent increase
in losses, compared to the tested
efficiency of a random sample of five or
more units of a basic model. A very
specific technical issue on which DOE
invites comment is whether the 5
percent margin between the losses of the
represented efficiency and the losses
corresponding to the sample average
efficiency is large enough to assure that
the population of motor basic models is
at least as efficient as the represented
efficiency.
M. Validation of the Small Electric
Motor Alternative Efficiency
Determination Method
Section 343(a)(2) of EPCA requires
that test procedures prescribed for
electric motors be ‘‘reasonably designed
to produce test results which reflect
energy efficiency,’’ yet not be ‘‘unduly
burdensome’’ to conduct. (42 U.S.C.
6314(a)(2)) As discussed in the
December 2008 NOPR, DOE recognizes
that manufacturers produce large
numbers of basic models of small
electric motors, numbering in the
thousands. These large numbers are due
in part to the frequency with which
units are modified because of material
price fluctuations which, in turn, often
necessitate the development of new
basic models.
In view of the substantial number of
small electric motors that could be
subject to an individual testing
requirement for each basic model, in the
final small electric motors test
procedure rule, DOE adopted a
certification program that consisted of
an alternative efficiency determination
method (AEDM). 74 FR 32067, 32073.
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An AEDM is a predictive mathematical
model developed from engineering
analyses of design data and
substantiated by actual testing. It
represents the energy consumption
characteristics of one or more basic
models. Before using an AEDM, a
manufacturer must determine its
accuracy and reliability through actual
testing of a statistically valid sample of
at least five basic models. (10 CFR
431.445) For each basic model, the
manufacturer must test a sample size of
at least five units selected at random
according to the criteria adopted in
section 10 CFR 431.445, ‘‘Determination
of Small Electric Motor Efficiency.’’
After validating an AEDM’s accuracy,
the manufacturer may use that AEDM to
determine the efficiencies of other basic
models of small electric motors without
further testing.
In the December 2008 NOPR, DOE
proposed guidance about the
certification program for testing small
electric motors, selecting units from a
basic model, and applying the results of
the actual testing to substantiate an
AEDM. 73 FR 78223–24, 78238–39.
Today, DOE proposes additional
requirements that are consistent with
the AEDM approach adopted for 1–200
horsepower electric motors. These
proposals help clarify portions of the
AEDM procedure adopted in the final
rule for small electric motors. DOE
invites comments from interested
parties on these requirements for a
manufacturer to substantiate the
accuracy of its AEDM.
N. Small Electric Motor Nationally
Recognized Certification Program
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EPCA provides different requirements
for determining the energy efficiency of
regulated small electric motors (twodigit NEMA frame) and electric motors
(three-digit NEMA frame). In particular,
section 345(c) of EPCA directs the
Secretary of Energy to require
manufacturers of ‘‘electric motors’’ to
‘‘certify, through an independent testing
or certification program nationally
recognized in the United States, that
[any electric motor subject to EPCA
efficiency standards] meets the
applicable standard.’’ 9 (42 U.S.C.
6316(c)) No such requirement for
independent testing or certification
applies to small electric motors.
9 Further, 10 CFR 431.17(a)(5) provides for a
manufacturer to establish compliance either
through (1) a certification program that DOE has
classified as nationally recognized, such as CAN/
CSA or Underwriters Laboratories, Inc., or (2)
testing in any laboratory that is accredited by the
National Institute of Standards and Technology/
National Voluntary Laboratory Accreditation
Program (NIST/NVLAP).
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In the December 2008 NOPR, DOE
proposed to allow a manufacturer to
self-certify its small electric motors (i.e.,
not require ‘‘independent testing’’),
which DOE believes is consistent with
the compliance certification
requirements for other commercial
products such as high-intensity
discharge lamps and distribution
transformers covered under section 346
of EPCA.
In its comments to the NOPR, NEMA
observed that many small electric
motors sold in the U.S. are also sold in
Canada, and that Canadian regulatory
entities are considering following DOE’s
lead in developing energy efficiency
standards for small electric motors.
(NEMA, No. 12 at p. 4) NEMA noted
that because the only means to certify
compliance for electric motors in
Canada is through the CAN/CSA Energy
Efficiency Verification Program, it is
likely that the Canadian government
will require small electric motors to be
certified through the same CAN/CSA
Energy Efficiency Verification Program.
NEMA requested that DOE recognize
independent third party efficiency
certification programs for small electric
motors, but not mandate use of
independent third party certification
programs or accreditation programs for
testing facilities. Rather, it stressed that
DOE recognition of such programs
would encourage voluntary use of
certification through third parties, such
as NIST/NVLAP. In addition, NEMA
recommended that DOE allow sufficient
time for the approval of such programs
and manufacturer participation in such
programs because no accreditation
programs for testing in accordance with
IEEE Standard 112 Method A, IEEE
Standard 114, or CAN/CSA–C747
currently exist.
NEEA expressed its support for a
nationally recognized certification
program or accredited laboratory,
according to the requirements that
currently apply to electric motors. (See
10 CFR 431.17(a)(5)) It recommended
that DOE apply the same requirements
to the small electric motors covered in
this rulemaking. (NEEA, No. 10 at p. 2)
In view of the above comments, in
this SNOPR, DOE is proposing to add
the same provisions regarding
nationally recognized certification
programs to the small electric motors
regulations as are currently found in the
electric motors regulations at 10 CFR
431.17(a)(5), 431.20, and 431.21. DOE is
proposing to allow the use of such
approved programs although, in the
future, DOE may require manufacturers
to test small electric motors through a
nationally recognized certification
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program or an independent testing
program.
O. Issues Related to Compliance
Certification and Enforcement of
Electric Motors and Small Electric
Motors
In response to the December 2008 test
procedure NOPR and the March 2010
small electric motor energy conservation
standards NOPR, DOE received
comments on several topics pertaining
to the compliance certification and
enforcement of electric motors and
small electric motors. These issues
included: Definitions of ‘‘basic model’’
for electric motors and small electric
motors, enforcement of energy
conservation standards for electric
motors and small electric motors,
compliance certification and submission
of data requirements for electric motors
and small electric motors, and labeling
requirements for small electric motors.
DOE plans to address these issues and
others in the second phase of its
Compliance Certification and
Enforcement rulemaking. In this
SNOPR, however, DOE requests further
comment and specific suggestions on
how DOE should amend the provisions
listed above.
IV. Public Participation
A. Submission of Comments
DOE will accept comments, data, and
information regarding this notice or any
aspect of this rulemaking no later than
February 4, 2011. Comments, data, and
information submitted to DOE’s e-mail
address for this rulemaking should be
provided in WordPerfect, Microsoft
Word, portable data format (PDF), or
text (ASCII) file format. Interested
parties should avoid the use of special
characters or any form of encryption,
and wherever possible, comments
should include the electronic signature
of the author, if possible. Comments,
data, and information submitted to DOE
by mail or hand delivery/courier should
include one signed original paper copy.
No telefacsimiles (faxes) will be
accepted.
According to 10 CFR 1004.11, any
person submitting information that he
or she believes to be confidential and
exempt by law from public disclosure
should submit two copies of the
information: One copy of the document
including all the information believed to
be confidential, and one copy of the
document with the information believed
to be confidential deleted. Although
DOE will consider the submitter’s
views, DOE will make its own
determination as to the confidential
status of the information, and treat the
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information according to its
determination.
Factors of interest to DOE when
evaluating requests to treat submitted
information as confidential include (1) a
description of the items, (2) whether
and why such items are customarily
treated as confidential within the
industry, (3) whether the information is
generally known or available from
public sources, (4) whether the
information has previously been made
available to others without obligation
concerning its confidentiality, (5) an
explanation of the competitive injury to
the submitting person which would
result from public disclosure, (6) a date
after which such information might no
longer be considered confidential, and
(7) why disclosure of the information
would be contrary to the public interest.
(10 CFR 1004.11(f))
After the close of the comment period,
DOE will review the comments received
and conduct further analyses as needed.
B. Issues on Which the Department of
Energy Seeks Comment
Comments are welcome on all the
issues raised in this SNOPR. However,
DOE is particularly interested in
receiving comments concerning the
following issues:
1. Definition of Electric Motor
DOE invites comment on its proposed
definition for ‘‘electric motor.’’ DOE’s
proposed definition is intended to
clarify the term ‘‘electric motor’’ in the
context of EPCA, and to ensure that all
four motor types covered under EISA
2007 are covered under the broad
definition of electric motor. See section
III.A for details.
2. Definition of General Purpose Electric
Motors, Subtypes I and II
DOE invites comment on its proposed
definitions for ‘‘general purpose electric
motor (subtype I),’’ ‘‘general purpose
electric motor (subtype II),’’ and ‘‘general
purpose electric motor.’’ See section
III.B for details.
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3. Definition of NEMA Design B Motor
DOE invites comment on its revised
definition for ‘‘NEMA Design B Motor,’’
which adopts a broad definition of a
NEMA Design B motor similar to that
which was proposed in the December
2008, NOPR, but maintains the
provisions regarding 50 hertz, updates
the NEMA MG1 reference, and
eliminates any reference to NEMA
Design B motors necessarily being
general purpose electric motors. See
section III.C for details.
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4. Fire Pump Motors Definition
DOE invites comment on its proposed
definition for ‘‘fire pump motors.’’ See
section III.D for details.
5. Fire Pump Motor Coverage
DOE invites comment on its
interpretation of the scope of coverage
for fire pump motors. See section III.E
for details.
6. Energy Conservation Standards for
Electric Motors
DOE invites comment on its
clarification of the applicability of the
energy conservation standards tables
contained in 10 CFR 431.25. See section
III.F for details.
7. References to International
Electrotechnical Commission, National
Electrical Manufacturers Association,
Institute of Electrical and Electronics
Engineers, and Canadian Standards
Association Standards for Electric
Motors
DOE invites comment on its proposal
to incorporate updated versions of the
IEC, NEMA, IEEE, and CSA standards
into 10 CFR part 431 to facilitate and
clarify coverage of electric motors,
including metric-equivalent motors.
DOE also invites comments on whether
the updates to the test methods will
change the efficiency of motors tested.
See section III.G for details.
8. National Institute of Standards and
Technology/National Voluntary
Laboratory Accreditation Program
Handbook 150–10 Update and Checklist
DOE invites comment on its proposal
to reference NIST Handbook 150–10,
which has been updated by NIST to
incorporate references to the same test
procedures proposed by DOE in the
December 2008 NOPR. See section III.H
for details.
9. Appendix A to Subpart B of Title 10
of the Code of Federal Regulations Part
431
DOE invites comment on its revision
of the contents of appendix A to provide
guidance in line with the changes
promulgated by EISA 2007, including
its proposed guidance concerning shaft
dimensions, length, shoulder location,
and special designs. See section III.I for
details.
10. Canadian Standards Association
Test Procedure for Small Electric Motors
DOE invites comment on its proposal
to allow a manufacturer to use CAN/
CSA Standard C747–09 as an alternative
to the IEEE Standard 112 Test Method
A and IEEE Standard 114; and CAN/
CSA Standard C390–10 as an alternative
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to the IEEE Standard 112 Test Method
B for small electric motors. DOE may or
may not promulgate these two
alternative standards in the final rule of
this test procedure based on comments
from interested parties. See section III.K
for details.
11. Small Electric Motor Represented
Efficiency Value
DOE invites comment on its proposed
definition of the represented efficiency
value. See section III.L for details.
12. Validation of the Small Electric
Motor Alternative Efficiency
Determination Method
DOE invites comment on its proposed
approach for using actual testing to
validate an AEDM model. The proposed
method is consistent with the approach
followed by electric motor
manufacturers for 1–200 horsepower
motors currently in place. See section
III.M for details.
13. Small Electric Motor Nationally
Recognized Certification Program
DOE invites comment on its proposed
approach to allow manufacturers to
certify compliance using a nationally
recognized certification program,
similar to the program used for electric
motors. DOE specifically would like to
know if independent third party
compliance certification or laboratory
accredited programs for small electric
motors (1) currently exist for the
appropriate small electric motors test
procedures, (2) if not should they be
established, and (3) should they be
made mandatory or voluntary. See
section III.N for details.
14. Issues Related to Compliance
Certification and Enforcement of
Electric Motors and Small Electric
Motors
DOE invites comment and specific
suggestions on how DOE should amend
the provisions related to compliance
certification and enforcement, including
the definition of ‘‘basic model,’’
enforcement of energy conservation
standards, and compliance certification
and submission of data requirements for
electric motors and small electric
motors, as well as labeling requirements
for small electric motors. See section
III.O for details.
V. Procedural Issues and Regulatory
Review
A. Review Under Executive Order 12866
The Office of Management and Budget
(OMB) has determined that test
procedure rulemakings do not constitute
‘‘significant regulatory actions’’ under
Executive Order 12866, ‘‘Regulatory
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Planning and Review.’’ 58 FR 51735
(October 4, 1993). Accordingly, this
proposed action is not subject to review
under that Executive Order by the Office
of Information and Regulatory Affairs of
OMB.
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B. Review Under the Regulatory
Flexibility Act
The Regulatory Flexibility Act (5
U.S.C. 601 et seq., as amended by the
Small Business Regulatory Enforcement
Fairness Act of 1996) requires
preparation of an initial regulatory
flexibility analysis for any rule that by
law must be proposed for public
comment, unless the agency certifies
that the rule, if promulgated, will have
no significant economic impact on a
substantial number of small entities.
Also, as required by Executive Order
13272, ‘‘Proper Consideration of Small
Entities in Agency Rulemaking,’’ 67 FR
53461 (August 16, 2002), DOE
published procedures and policies on
February 19, 2003, to ensure that the
potential impacts of its rules on small
entities are properly considered during
the DOE rulemaking process. 68 FR
7990. DOE has made its procedures and
policies available on the Office of the
General Counsel’s Web site at https://
www.gc.doe.gov. DOE reviewed today’s
SNOPR under the provisions of the
Regulatory Flexibility Act and the
policies and procedures published on
February 19, 2003.
To estimate the number of small
businesses impacted by the rule, DOE
considered the size standards for a small
business listed by the North American
Industry Classification System (NAICS)
code and description, under 13 CFR
121.201. To be considered a small
business, a manufacturer of electric
motors or small electric motors and its
affiliates may employ a maximum of
1,000 employees. DOE estimates that
there are approximately 20 domestic
motor manufacturers that manufacture
electric motors or small electric motors
covered by EPCA, and no more than six
of these manufacturers are small
businesses employing a maximum of
1,000 employees. These estimates are
based on analyses DOE conducted in the
final rule establishing energy
conservation standards for small electric
motors at 75 FR 10874 (March 9, 2010)
and the final rule that set forth test
procedures for electric motors at 64 FR
54114 (October 5, 1999). In these
previous rules, DOE calculated the
number of motor manufacturers,
including which of those manufacturers
are small businesses, based on
interviews with motor manufacturers
and publicly available data.
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The SNOPR proposes additional test
procedures that are consistent with
current industry practice, clarifies
definitions for certain key terms,
clarifies the scope of energy
conservation standards for electric
motors, and updates references to
standards publications and test
procedures otherwise incorporated by
reference. DOE believes that the cost of
complying with the test procedures
proposed in this SNOPR would not
impose significant economic costs on
motor manufacturers that are small
businesses because many, if not most,
motor manufacturers are already
manufacturing their electric motors or
small electric motors to the latest
industry-developed energy efficiency
performance standards that are the basis
for the standards in EPCA and in Title
10 of the Code of Federal Regulations,
Part 431 (10 CFR part 431). In addition,
the SNOPR promotes consistency with
current industry test procedures and
methodologies because the SNOPR is
not proposing any additional testing
requirements or higher accuracy
tolerances beyond what is already
contained in the industry standards
documents incorporated by reference for
this equipment (i.e., IEEE Std 114, IEEE
Std 112; CSA C390, and CAN/CSA
C747.) DOE elaborated on these analyses
in the December 22, 2008, test
procedure notice of proposed
rulemaking (NOPR), which today’s
SNOPR supplements. 73 FR 78220. DOE
believes that the costs imposed on
manufacturers of electric motors and
small electric motors as a result of
today’s SNOPR are not greater than the
costs that would have been imposed on
these manufacturers under the
December 22, 2008 NOPR.
Moreover, DOE previously considered
the one comment it received regarding
impacts on small businesses in the
small motors test procedure rulemaking
at 64 FR 54114 (October 5, 1999). The
commenter recommended that DOE
provide more than one agency to certify
and/or accredit labs and provide a
simple procedure to verify electric
motor compliance with EPCA efficiency
levels. DOE addressed these concerns by
finalizing a rule that provided multiple
ways to certify compliance and adopted
simple, repeatable, and statistically
valid sampling procedures.
Based on the above, DOE believes that
the test procedure amendments
proposed in today’s SNOPR will not
have a significant impact on a
substantial number of small entities and
that a Regulatory Flexibility Act
analysis is therefore not required.
Accordingly, DOE has not prepared a
regulatory flexibility analysis for this
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rulemaking. DOE provided the Chief
Counsel for Advocacy of the Small
Business Administration a certification
and supporting statement of factual
basis pursuant to 5 U.S.C. 605(b).
C. Review Under the Paperwork
Reduction Act
Manufacturers of covered electric
motors must certify to DOE that their
electric motors comply with any
applicable energy conservation
standard. In certifying compliance,
manufacturers must test their electric
motors according to the DOE test
procedure for electric motors, including
any amendments adopted for that test
procedure. DOE has proposed
regulations for the certification and
recordkeeping requirements for all
covered consumer products and
commercial equipment, including
electric motors. 75 FR 56796 (September
16, 2010). The collection-of-information
requirement for the certification and
recordkeeping is subject to review and
approval by OMB under the Paperwork
Reduction Act (PRA). This requirement
has been submitted to OMB for
approval. Public reporting burden for
the certification is estimated to average
20 hours per response, including the
time for reviewing instructions,
searching existing data sources,
gathering and maintaining the data
needed, and completing and reviewing
the collection of information.
Public comment is sought regarding:
whether this proposed collection of
information is necessary for the proper
performance of the functions of the
agency, including whether the
information shall have practical utility;
the accuracy of the burden estimate;
ways to enhance the quality, utility, and
clarity of the information to be
collected; and ways to minimize the
burden of the collection of information,
including through the use of automated
collection techniques or other forms of
information technology. Send comments
on these or any other aspects of the
collection of information to Ms. Brenda
Edwards, U.S. Department of Energy,
Building Technologies Program,
Mailstop EE–2J, 1000 Independence
Avenue, SW., Washington, DC 20585–
0121 and e-mail to
Christine_J._Kymn@omb.eop.gov.
Notwithstanding any other provision
of the law, no person is required to
respond to, nor shall any person be
subject to a penalty for failure to comply
with, a collection of information subject
to the requirements of the PRA, unless
that collection of information displays a
currently valid OMB Control Number.
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D. Review Under the National
Environmental Policy Act
In this notice, DOE proposes limited
revisions to new and amended test
procedures that are used to measure and
determine the energy efficiency of
certain types of electric motors. This
proposed rule falls into a class of
actions that are categorically excluded
from review under the National
Environmental Policy Act of 1969,
(NEPA) 42 U.S.C. 4321 et seq., and
DOE’s implementing regulations at 10
CFR part 1021. In particular, today’s
proposed rule is covered by Categorical
Exclusion A5, for rulemakings that
interpret or amend an existing rule
without changing the environmental
effect, as set forth in DOE’s NEPA
regulations in appendix A to subpart D
of 10 CFR part 1021. Today’s proposed
rule will not affect the amount, quality,
or distribution of energy usage, and
therefore will not result in any
environmental impacts. Accordingly,
neither an environmental assessment
nor an environmental impact statement
is required.
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E. Review Under Executive Order 13132
Executive Order 13132, ‘‘Federalism,’’
64 FR 43255 (August 10, 1999), imposes
certain requirements on agencies
formulating and implementing policies
or regulations that preempt State law or
that have Federalism implications. The
executive order requires agencies to
examine the constitutional and statutory
authority supporting any action that
would limit the policymaking discretion
of the States and to carefully assess the
necessity for such actions. The
Executive Order also requires agencies
to have an accountability process to
ensure meaningful and timely input by
State and local officials in developing
regulatory policies that have Federalism
implications. On March 14, 2000, DOE
published a statement of policy
describing the intergovernmental
consultation process it will follow in
developing such regulations. 65 FR
13735. DOE examined this proposed
rule and determined that it does not
have a substantial direct effect on the
States, on the relationship between the
national government and the States, or
on the distribution of power and
responsibilities among the various
levels of government. Accordingly, no
action is required under Executive
Order 13132.
F. Review Under Executive Order 12988
With respect to the review of existing
regulations and the promulgation of
new regulations, section 3(a) of
Executive Order 12988, ‘‘Civil Justice
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Reform,’’ 61 FR 4729 (February 7, 1996),
imposes on Federal agencies the duty to
adhere to the following requirements:
(1) Eliminate drafting errors and
ambiguity, (2) write regulations to
minimize litigation, and (3) provide a
clear legal standard for affected conduct
rather than a general standard and
promote simplification and burden
reduction. Section 3(b) of Executive
Order 12988 specifically requires,
among other things, that Executive
agencies make every reasonable effort to
ensure that the regulation (1) clearly
specifies the preemptive effect, if any;
(2) clearly specifies any effect on
existing Federal law or regulation; (3)
provides a clear legal standard for
affected; (4) specifies the retroactive
effect, if any; (5) adequately defines key
terms; and (6) addresses other important
issues affecting clarity and general
draftsmanship under any guidelines
issued by the Attorney General. Section
3(c) of Executive Order 12988 requires
Executive agencies to review regulations
in light of applicable standards in
sections 3(a) and 3(b) to determine
whether they are met or it is
unreasonable to meet one or more of
them. DOE has completed the required
review and determined that, to the
extent permitted by law, this
rulemaking meets the relevant standards
of Executive Order 12988.
G. Review Under the Unfunded
Mandates Reform Act of 1995
Title II of the Unfunded Mandates
Reform Act of 1995 (UMRA) (Pub. L.
104–4, 2 U.S.C. 1501 et seq.) generally
requires Federal agencies to examine
closely the impacts of regulatory actions
on State, local, or Tribal governments.
Subsection 101(5) of title I of that law
defines a Federal intergovernmental
mandate to include a regulation that
would impose upon State, local, or
Tribal governments an enforceable duty,
except a condition of Federal assistance
or a duty arising from participating in a
voluntary Federal program. Title II of
that law requires each Federal agency to
assess the effects of Federal regulatory
actions on State, local, and Tribal
governments, in the aggregate, or the
private sector, other than to the extent
such actions merely incorporate
requirements specifically set forth in a
statute. Section 202 of the title requires
a Federal agency to perform a detailed
assessment of the anticipated costs and
benefits of any rule that includes a
Federal mandate that may result in costs
State, local, or Tribal governments or
the private sector of $100 million or
more in any one year (adjusted annually
for inflation). (2 U.S.C. 1532(a) and (b))
Section 204 of that title requires each
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agency that proposed a rule containing
a significant Federal intergovernmental
mandate to develop an effective process
for obtaining meaningful and timely
input by elected officers of State, local,
and Tribal governments. (2 U.S.C. 1534)
On March 18, 1997, DOE published a
statement of policy on its process for
intergovernmental consultation under
UMRA. 62 FR 12820 (also available at
https://www.gc.doe.gov). Today’s
supplemental proposed rule does not
establish any new or amended test
procedures that would be used in
measuring the energy efficiency of
electric motors or small electric
motors—it merely clarifies existing
definitions and test procedures. This
supplemental proposed rule would,
therefore, not result in the expenditure
of $100 million or more in any year.
Accordingly, no assessment or analysis
is required under the UMRA.
H. Review Under the Treasury and
General Government Appropriations
Act, 1999
Section 654 of the Treasury and
General Government Appropriations
Act, 1999 (Pub. L. 105–277) requires
Federal agencies to issue a Family
Policymaking Assessment for any rule
that may affect family well-being.
Today’s supplemental proposed rule to
amend DOE test procedures would not
have any impact on the autonomy or
integrity of the family as an institution.
Accordingly, DOE has concluded that it
is unnecessary to prepare a Family
Policymaking Assessment.
I. Review Under Executive Order 12630
Pursuant to Executive Order 12630,
‘‘Governmental Actions and Interference
with Constitutionally Protected Property
Rights,’’ 53 FR 8859 (March 18, 1988),
DOE has determined that this
supplemental proposed rule would not
result in any takings that might require
compensation under the Fifth
Amendment to the U.S. Constitution.
J. Review Under the Treasury and
General Government Appropriations
Act, 2001
Section 515 of the Treasury and
General Government Appropriations
Act, 2001 (Pub. L. 106–554, 44 U.S.C.
3516) provides for agencies to review
most disseminations of information to
the public under information quality
guidelines established by each agency
under general guidelines issued by
OMB. OMB’s guidelines were published
at 67 FR 8452 (February 22, 2002), and
DOE’s guidelines were published at 67
FR 62446 (October 7, 2002). DOE has
reviewed today’s supplemental
proposed rule under the OMB and DOE
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guidelines and has concluded that it is
consistent with applicable policies in
those guidelines.
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K. Review Under Executive Order 13211
Executive Order 13211, ‘‘Actions
Concerning Regulations That
Significantly Affect Energy Supply,
Distribution, or Use,’’ 66 FR 28355 (May
22, 2001), requires Federal agencies to
prepare and submit to OMB a Statement
of Energy Effects for any proposed
significant energy action. A ‘‘significant
energy action’’ is defined as any action
by an agency that promulgated a final
rule or is expected to lead to
promulgation of a final rule, and that (1)
is a significant regulatory action under
Executive Order 12866, or any successor
order; and (2) is likely to have a
significant adverse effect on the supply,
distribution, or use of energy; or (3) is
designated by the Administrator of
OIRA as a significant energy action. For
any proposed significant energy action,
the agency must give a detailed
statement of any adverse effects on
energy supply, distribution, or use
should the proposal be implemented,
and reasonable alternatives to the action
and their expected benefits on energy
supply, distribution, and use. Because
this rulemaking is not expected to be a
significant regulatory action under
Executive Order 12866; it would not
have a significant adverse effect on the
supply, distribution, or use of energy;
and has not been designated a
significant energy action by the
Administrator of OIRA, DOE has
determined that this rule is not a
significant energy action. Accordingly,
DOE has not prepared a Statement of
Energy Effects for this rulemaking.
L. Review Under Section 32 of the
Federal Energy Administration Act of
1974
Under section 301 of the Department
of Energy Organization Act (Pub. L. 95–
91), DOE must comply with section 32
of the Federal Energy Administration
Act of 1974 (Pub. L. 93–275), as
amended by the Federal Energy
Administration Authorization Act of
1977 (Pub. L. 95–70). (15 U.S.C. 788)
Section 32 provides that where a
proposed rule authorizes or requires use
of commercial standards, the NOPR
must inform the public of the use and
background of such standards. In
addition, section 32(c) requires DOE to
consult with the Department of Justice
(DOJ) and the Federal Trade
Commission (FTC) concerning the
impact of the commercial or industry
standards on competition.
The rule proposed in this notice
incorporates testing methods contained
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in the following commercial standards:
(1) CAN/CSA C390–10, Test methods,
marking requirements, and energy
efficiency levels for three-phase
induction motors, March 22, 2010; (2)
CAN/CSA C747–09, Energy efficiency
test methods for small motors, October
1, 2009; (3) IEC Standard 60034–1
(2010), Rotating Electrical Machines,
Part 1: Rating and Performance, Section
4: Duty, clause 4.2.1 and Figure 1; (4)
Standard 60034–12 (2007), Rotating
Electrical Machines, Part 12: Starting
Performance of Single-Speed ThreePhase Cage Induction Motors, clauses
5.2, 5.4, 6, and 8, and Tables 1, 2, 3, 4,
5, 6, and 7; and (5) NEMA Standards
Publication MG1–2009 Section I (Part
1), Section I (Part 4), Section II (Part 12),
and Section II (Part 14).
DOE has evaluated these revised
standards and is unable to conclude
whether they fully comply with the
requirements of section 32(b) of the
Federal Energy Administration Act (i.e.,
that they were developed in a manner
that fully provides for public
participation, comment, and review).
DOE will consult with the Attorney
General and the Chairman of the FTC
about the impact of these test
procedures on competition.
VI. Approval of the Office of the
Secretary
The Secretary of Energy has approved
publication of this proposed rule.
List of Subjects in 10 CFR Part 431
Administrative practice and
procedure, Energy conservation,
Incorporation by reference, Reporting
and recordkeeping requirements.
Issued in Washington, DC, on December
15, 2010.
Cathy Zoi,
Assistant Secretary, Energy Efficiency and
Renewable Energy.
For the reasons stated in the
preamble, DOE proposes to amend part
431 of chapter II of title 10, Code of
Federal Regulations, as set forth below.
PART 431—ENERGY EFFICIENCY
PROGRAM FOR CERTAIN
COMMERCIAL AND INDUSTRIAL
EQUIPMENT
1. The authority citation for part 431
continues to read as follows:
Authority: 42 U.S.C. 6291–6317.
2. Section 431.11 is revised to read as
follows:
§ 431.11
Purpose and scope.
This subpart contains energy
conservation requirements for electric
motors. It contains test procedures that
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EPCA requires DOE to prescribe, related
requirements, energy conservation
standards prescribed by EPCA, labeling
rules, and compliance procedures. It
also identifies materials incorporated by
reference in this part. This subpart does
not cover ‘‘small electric motors,’’ which
are addressed in subpart X of this part.
3. Section 431.12 is amended by
revising the introductory text, revising
the definitions of ‘‘accreditation,’’
‘‘definite purpose motor,’’ ‘‘general
purpose electric motor (subtype I),’’
‘‘general purpose electric motor (subtype
II),’’ and ‘‘nominal full load efficiency,’’
by removing the definition of ‘‘general
purpose motor’’ and by adding in
alphabetical order, new definitions for
‘‘electric motor,’’ ‘‘fire pump motor,’’
‘‘general purpose electric motor,’’ and
‘‘NEMA Design B motor’’ to read as
follows:
§ 431.12
Definitions.
The following definitions apply for
purposes of this subpart, and of subparts
U and V of this part. Any words or
terms not defined in this section or
elsewhere in this part shall be defined
as provided in Section 340 of the Act.
Accreditation means recognition by
an accreditation body that a laboratory
is competent to test the efficiency of
electric motors according to the scope
and procedures given in Test Method B
of IEEE Standard 112–2004 and CAN/
CSA Standard C390–10 (incorporated by
reference, see § 431.15).
*
*
*
*
*
Definite purpose motor means any
motor designed in standard ratings with
standard operating characteristics or
standard mechanical construction for
use under service conditions other than
usual, such as those specified in NEMA
Standards Publication MG1–2009,
paragraph 14.3, ‘‘Unusual Service
Conditions,’’ (incorporated by reference,
see § 431.15) or for use on a particular
type of application, and which cannot
be used in most general purpose
applications.
*
*
*
*
*
Electric motor means a machine that
converts electrical power into rotational
mechanical power.
*
*
*
*
*
Fire pump motor means an electric
motor that meets the performance and
construction requirements of section 9.5
of National Fire Protection Association
(NFPA) Standard 20–2010, ‘‘Standard
for the Installation of Stationary Pumps
for Fire Protection,’’ and Underwriters
Laboratories (UL) 1004–5, ‘‘Standard for
Fire Pump Motors,’’ dated September 15,
2008.
*
*
*
*
*
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General purpose electric motor means
any electric motor that is designed in
standard ratings with either:
(1) Standard operating characteristics
and mechanical construction for use
under usual service conditions, such as
those specified in NEMA Standards
Publication MG1–2009, paragraph 14.2,
‘‘Usual Service Conditions,’’
(incorporated by reference, see § 431.15)
and without restriction to a particular
application or type of application; or
(2) Standard operating characteristics
or standard mechanical construction for
use under unusual service conditions,
such as those specified in NEMA
Standards Publication MG1–2009,
paragraph 14.3, ‘‘Unusual Service
Conditions,’’ (incorporated by reference,
see § 431.15) or for a particular type of
application, and which can be used in
most general purpose applications.
These cited examples of standard
operating characteristics and
mechanical construction are for
illustrative purposes only.
General purpose electric motor
(subtype I) means a general purpose
electric motor that:
(1) Is a single-speed induction motor
(MG1);
(2) Is rated for continuous duty (MG1)
operation or for duty type S1 (IEC);
(3) Contains a squirrel-cage (MG1) or
cage (IEC) rotor;
(4) Has foot-mounting that may
include foot-mounting with flanges or
detachable feet;
(5) Is built in accordance with NEMA
T-frame dimensions (MG1) or their IEC
metric equivalents (IEC);
(6) Has performance in accordance
with NEMA Design A (MG1) or B
characteristics or equivalent designs
such as IEC Design N (IEC);
(7) Operates on polyphase alternating
current 60-hertz sinusoidal power, and:
(i) Is rated 230 or 460 volts (or both)
including motors rated at multiple
voltages that include 230 or 460 volts
(or both), or
(ii) Can be operated on 230 or 460
volts (or both); and
(8) Includes, but is not limited to,
explosion-proof construction.
Note to Definition of General purpose
electric motor (subtype I): Terms in this
definition followed by the parenthetical
‘‘MG1’’ must be construed with reference to
provisions in NEMA Standards Publication
MG1–2009 (incorporated by reference in
§ 431.15), and elements followed by the
parenthetical ‘‘IEC’’ must be construed with
reference to the IEC Standards (incorporated
by reference in § 431.15). 10 CFR part 431,
subpart B applies to general purpose electric
motors (subtype I) even if the NEMA or IECequivalent frame size or design element has
been discontinued or is discontinued in the
future.
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General purpose electric motor
(subtype II) means any general purpose
electric motor that incorporates design
elements of a general purpose electric
motor (subtype I) but, unlike a general
purpose electric motor (subtype I), is
configured in one or more of the
following ways:
(1) Is built in accordance with NEMA
U-frame dimensions (MG1) or their IEC
metric equivalents (IEC);
(2) Has performance in accordance
with NEMA Design C characteristics
(MG1) or equivalent designs such as IEC
Design H (IEC);
(3) Is a close-coupled pump motor;
(4) Is a footless motor;
(5) Is a vertical solid shaft normal
thrust motor (as tested in a horizontal
configuration) (MG1);
(6) Is an eight-pole motor (900 rpm);
or
(7) Is a polyphase motor with voltage
of not more than 600 volts (other than
230 or 460 volts).
Note to Definition of General purpose
electric motor (subtype II): Terms in this
definition followed by the parenthetical
‘‘MG1’’ must be construed with reference to
provisions in NEMA Standards Publication
MG1–2009 (incorporated by reference in
§ 431.15), and elements followed by the
parenthetical ‘‘IEC’’ must be construed with
reference to the IEC Standards (incorporated
by reference in § 431.15). 10 CFR part 431,
subpart B applies to general purpose electric
motors (subtype I) even if the NEMA or IECequivalent frame size or design element has
been discontinued or is discontinued in the
future.
*
*
*
*
*
NEMA Design B motor means a
squirrel-cage motor designed to
withstand full-voltage starting,
developing locked-rotor, breakdown,
and pull-up torques adequate for general
application as specified in sections
12.38, 12.39 and 12.40 of NEMA
Standards Publication MG1–2009
(incorporated by reference, see
§ 431.15), drawing locked-rotor current
not to exceed the values shown in
section 12.35.1 for 60 hertz and 12.35.2
for 50 hertz of NEMA Standards
Publication MG1–2009, and having a
slip at rated load of less than 5 percent
for motors with fewer than 10 poles.
*
*
*
*
*
Nominal full load efficiency means,
with respect to an electric motor, a
representative value of efficiency
selected from the ‘‘nominal efficiency’’
column of Table 12–10, NEMA
Standards Publication MG1–2009,
(incorporated by reference, see
§ 431.15), that is not greater than the
average full load efficiency of a
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population of motors of the same
design.
*
*
*
*
*
4. A new § 431.14 is added to read as
follows:
§ 431.14 Sources for information and
guidance.
(a) General. The standards listed in
this paragraph are referred to in the DOE
procedures for testing laboratories, and
recognition of accreditation bodies and
certification programs but are not
incorporated by reference. These
sources are given here for information
and guidance.
(b) NVLAP. National Voluntary
Laboratory Accreditation Program,
National Institute of Standards and
Technology, 100 Bureau Drive, M/S
2140, Gaithersburg, MD 20899.
(1) NVLAP Handbook 150, Procedures
and General Requirements, March 1994.
(2) NVLAP Handbook 150–10,
Efficiency of Electric Motors, August
1995.
(c) ISO/IEC. International
Organization for Standardization (ISO),
1, ch. de la Voie-Creuse, CP 56, CH–
1211 Geneva 20, Switzerland/
International Electrotechnical
´
Commission, 3, rue de Varembe, P.O.
Box 131, CH–1211 Geneva 20,
Switzerland.
(1) ISO/IEC Guide 25, General
requirements for the competence of
calibration and testing laboratories,
1990.
(2) ISO Guide 27, Guidelines for
corrective action to be taken by a
certification body in the event of either
misapplication of its mark of conformity
to a product, or products which bear the
mark of the certification body being
found to subject persons or property to
risk, 1983.
(3) ISO/IEC Guide 28, General rules
for a model third-party certification
system for products, 2004.
(4) ISO/IEC Guide 58, Calibration and
testing laboratory accreditation
systems—General requirements for
operation and recognition, 1993.
(5) ISO/IEC Guide 65, General
requirements for bodies operating
product certification systems, 1996.
5. Section 431.15 is revised to read as
follows:
§ 431.15 Materials incorporated by
reference.
(a) General. The Department of Energy
incorporates by reference the following
standards and test procedures into
subpart B of part 431. The Director of
the Federal Register has approved the
material listed for incorporation by
reference in accordance with 5 U.S.C.
552(a) and 1 CFR part 51. Any
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subsequent amendment to a standard by
the standard-setting organization will
not affect DOE regulations unless and
until DOE amends its test procedures.
Material is incorporated as it exists on
the date of the approval, and a notice of
any change in the material will be
published in the Federal Register. All
approved material is available for
inspection at the National Archives and
Records Administration (NARA). For
information on the availability of this
material at NARA, call 202–741–6030,
or go to: https://www.archives.gov/
federal_register/code_of_federal_
regulations/ibr_locations.html. Also,
this material is available for inspection
at U.S. Department of Energy, Office of
Energy Efficiency and Renewable
Energy, Building Technologies Program,
Sixth Floor, 950 L’Enfant Plaza, SW.,
Washington, DC 20024, (202) 586–2945,
or go to https://www1.eere.energy.gov/
buildings/appliance_standards/.
(b) CAN/CSA. Canadian Standards
Association, Sales Department, 5060
Spectrum Way, Suite 100, Mississauga,
Ontario, L4W 5N6, Canada, 1–800–463–
6727, or go to https://www.shopcsa.ca/
onlinestore/welcome.asp.
(1) CSA C390–10, Test methods,
marking requirements, and energy
efficiency levels for three-phase
induction motors, March 22, 2010, IBR
approved for §§ 431.12; 431.16; 431.19;
431.20; appendix B to subpart B of part
431.
(2) [Reserved]
(c) IEC. International Electrotechnical
Commission Central Office, 3, rue de
´
Varembe, P.O. Box 131, CH–1211
Geneva 20, Switzerland, +41 22 919 02
11, or go to https://webstore.iec.ch.
(1) International Electrotechnical
Commission Standard 60034–1 (2010),
Rotating Electrical Machines, Part 1:
Rating and Performance, Section 4:
Duty, clause 4.2.1 and Figure 1, IBR
approved for § 431.12.
(2) International Electrotechnical
Commission Standard 60050–411
(1996), International Electrotechnical
Vocabulary Chapter 411: Rotating
machines, sections 411–33–07 and 411–
37–26, IBR approved for § 431.12.
(3) International Electrotechnical
Commission Standard 60072–1 (1991),
Dimensions and Output Series for
Rotating Electrical Machines—Part 1:
Frame numbers 56 to 400 and flange
numbers 55 to 1080, clauses 2, 3, 4.1,
6.1, 7, and 10, and Tables 1, 2, and 4,
IBR approved for § 431.12.
(4) International Electrotechnical
Commission Standard 60034–12 (2007),
Rotating Electrical Machines, Part 12:
Starting Performance of Single-Speed
Three-Phase Cage Induction Motors,
clauses 5.2, 5.4, 6, and 8, and Tables 1,
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2, 3, 4, 5, 6, and 7, IBR approved for
§ 431.12.
(d) IEEE. Institute of Electrical and
Electronics Engineers Standard 112 can
be obtained from the Institute of
Electrical and Electronics Engineers,
Inc., 445 Hoes Lane, P.O. Box 1331,
Piscataway, NJ 08855–1331, 1–800–
678–IEEE (4333), or https://www.ieee.
org/web/publications/home/.
(1) Institute of Electrical and
Electronics Engineers, Inc., Standard
112–2004, Test Procedure for Polyphase
Induction Motors and Generators, Test
Method B, Input-Output with Loss
Segregation, 4 November 2004, IBR
approved for §§ 431.12; 431.16; 431.19;
431.20; appendix B to subpart B of part
431.
(2) [Reserved]
(e) NEMA. National Electrical
Manufacturers Association, 1300 North
17th Street, Suite 1752, Rosslyn,
Virginia 22209, 703–841–3200, or go to
https://www.nema.org/.
(1) The following provisions of NEMA
Standards Publication MG1–2009,
Motors and Generators, IBR approved
for §§ 431.12; 431.31; appendix A to
subpart B; and appendix B to subpart B
of part 431:
(i) Section I, General Standards
Applying to All Machines, Part 1,
Referenced Standards and Definitions,
paragraphs 1.18.1, 1.18.1.1, 1.19.1.1,
1.19.1.2, 1.19.1.3, and 1.40.1, IBR
approved for § 431.12;
(ii) Section I, General Standards
Applying to All Machines, Part 4,
Dimensions, Tolerances, and Mounting,
paragraphs 4.1, 4.2.1, 4.2.2, 4.4.1, 4.4.2,
4.4.4, 4.4.5, and 4.4.6, Figures 4–1, 4–2,
4–3, 4–4, and 4–5, and Table 4–2, IBR
approved for § 431.12;
(iii) Section II, Small (Fractional) and
Medium (Integral) Machines, Part 12,
Tests and Performance—AC and DC
Motors, paragraphs 12.35.1, 12.38.1,
12.38.2, 12.39.1, 12.39.2, and 12.40.1,
12.40.2, 12.58.1, and Tables 12–2 and
12–10, IBR approved for § 431.12, and
paragraph 12.58.2, IBR approved for
§ 431.31; and
(iv) Section II, Small (Fractional) and
Medium (Integral) Machines, Part 14,
Application Data—AC and DC Small
and Medium Machines, paragraphs 14.2
and 14.3, IBR approved for § 431.12.
(2) [Reserved]
6. Section 431.18, paragraph (b) is
revised to read as follows:
§ 431.18
Testing laboratories.
*
*
*
*
*
(b) NIST/NVLAP is under the
auspices of the National Institute of
Standards and Technology (NIST)/
National Voluntary Laboratory
Accreditation Program (NVLAP), which
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is part of the U.S. Department of
Commerce. NIST/NVLAP accreditation
is granted on the basis of conformance
with criteria published in 15 CFR part
285. The National Voluntary Laboratory
Accreditation Program, ‘‘Procedures and
General Requirements,’’ NIST Handbook
150–10, February 2007, and Lab
Bulletin LB–42–2009, Efficiency of
Electric Motors Program, (see
§ 431.15(f)(2)(i)), present the technical
requirements of NVLAP for the
Efficiency of Electric Motors field of
accreditation. This handbook
supplements NIST Handbook 150,
National Voluntary Laboratory
Accreditation Program ‘‘Procedures and
General Requirements,’’ which contains
15 CFR part 285 plus all general NIST/
NVLAP procedures, criteria, and
policies. Changes in NIST/NVLAP’s
criteria, procedures, policies, standards,
or other bases for granting accreditation
occurring after the initial effective date
of 10 CFR part 431 shall not apply to
accreditation under this part unless
approved in writing by the Department
of Energy. Information regarding NIST/
NVLAP and its Efficiency of Electric
Motors Program (EEM) can be obtained
from NIST/NVLAP, 100 Bureau Drive,
Mail Stop 2140, Gaithersburg, MD
20899–2140, (301) 975–4016
(telephone), or (301) 926–2884 (fax).
7. Section 431.19, paragraphs (b)(4)
and (c)(4), are revised to read as follows:
§ 431.19 Department of Energy recognition
of accreditation bodies.
*
*
*
*
*
(b) * * *
(4) It must be expert in the content
and application of the test procedures
and methodologies in IEEE Standard
112–2004 Test Method B and CSA
Standard C390–10 (incorporated by
reference, see § 431.15) or similar
procedures and methodologies for
determining the energy efficiency of
electric motors.
(c) * * *
(4) Expertise in electric motor test
procedures. The petition should set
forth the organization’s experience with
the test procedures and methodologies
in IEEE Standard 112–2004 Test Method
B and CSA Standard C390–10
(incorporated by reference, see § 431.15)
and with similar procedures and
methodologies. This part of the petition
should include description of prior
projects, qualifications of staff members,
and the like. Of particular relevance
would be documentary evidence that
establishes experience in applying the
guidelines contained in the ISO/IEC
Guide 25, General Requirements for the
Competence of Calibration and Testing
Laboratories, (see § 431.15(f)(2)(ii)) to
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motors.
*
*
*
*
*
8. Section 431.20 is amended by
revising paragraphs (b)(4) and (c)(4) to
read as follows:
§ 431.20 Department of Energy recognition
of nationally recognized certification
programs.
*
*
*
*
*
(b) * * *
(4) It must be expert in the content
and application of the test procedures
and methodologies in IEEE Standard
112–2004 Test Method B and CAN/CSA
Standard C390–10 (incorporated by
reference, see § 431.15) or similar
procedures and methodologies for
determining the energy efficiency of
electric motors. It must have satisfactory
criteria and procedures for the selection
and sampling of electric motors tested
for energy efficiency.
(c) * * *
(4) Expertise in electric motor test
procedures. The petition should set
forth the program’s experience with the
test procedures and methodologies in
IEEE Standard 112–2004 Test Method B
and CSA Standard C390–10
(incorporated by reference, see § 431.15)
and with similar procedures and
methodologies for electric. This part of
the petition should include a
description of prior projects,
qualifications of staff members, and the
like. Of particular relevance would be
documentary evidence that establishes
experience in applying guidelines
contained in the ISO/IEC Guide 25,
General requirements for the
competence of calibration and testing
laboratories, to energy efficiency testing
for electric motors.
*
*
*
*
*
9. Section 431.25 is revised to read as
follows:
§ 431.25
Energy conservation standards.
(a) Except as provided in paragraph
(b) of this section, each general purpose
electric motor (subtype I) with a power
rating of 1 horsepower or greater, but
not greater than 200 horsepower,
including a NEMA Design B motor that
is a general purpose electric motor
(subtype I), manufactured (alone or as a
component of another piece of
equipment) shall have a nominal full
load efficiency no less than the
following:
NOMINAL FULL-LOAD EFFICIENCIES OF GENERAL PURPOSE ELECTRIC MOTORS
[Subtype I]
Nominal full-load efficiency
Motor horsepower/
standard kilowatt equivalent
Open motors
(number of poles)
6
1/.75 .........................................................................................................
1.5/1.1 ......................................................................................................
2/1.5 .........................................................................................................
3/2.2 .........................................................................................................
5/3.7 .........................................................................................................
7.5/5.5 ......................................................................................................
10/7.5 .......................................................................................................
15/11 ........................................................................................................
20/15 ........................................................................................................
25/18.5 .....................................................................................................
30/22 ........................................................................................................
40/30 ........................................................................................................
50/37 ........................................................................................................
60/45 ........................................................................................................
75/55 ........................................................................................................
100/75 ......................................................................................................
125/90 ......................................................................................................
150/110 ....................................................................................................
200/150 ....................................................................................................
(b) Each fire pump motor
manufactured (alone or as a component
of another piece of equipment) shall
4
82.5
86.5
87.5
88.5
89.5
90.2
91.7
91.7
92.4
93.0
93.6
94.1
94.1
94.5
94.5
95.0
95.0
95.4
95.4
Enclosed motors
(number of poles)
2
85.5
86.5
86.5
89.5
89.5
91.0
91.7
93.0
93.0
93.6
94.1
94.1
94.5
95.0
95.0
95.4
95.4
95.8
95.8
6
77.0
84.0
85.5
85.5
86.5
88.5
89.5
90.2
91.0
91.7
91.7
92.4
93.0
93.6
93.6
93.6
94.1
94.1
95.0
4
82.5
87.5
88.5
89.5
89.5
91.0
91.0
91.7
91.7
93.0
93.0
94.1
94.1
94.5
94.5
95.0
95.0
95.8
95.8
2
85.5
86.5
86.5
89.5
89.5
91.7
91.7
92.4
93.0
93.6
93.6
94.1
94.5
95.0
95.4
95.4
95.4
95.8
96.2
77.0
84.0
85.5
86.5
88.5
89.5
90.2
91.0
91.0
91.7
91.7
92.4
93.0
93.6
93.6
94.1
95.0
95.0
95.4
have a nominal full load efficiency no
less than the following:
NOMINAL FULL-LOAD EFFICIENCIES OF FIRE PUMP MOTORS
Nominal full-load efficiency
Motor horsepower/
standard kilowatt equivalent
Open motors
(number of poles)
kgrant on DSKGBLS3C1PROD with BILLS
8
1/.75 .................................................................
1.5/1.1 ..............................................................
2/1.5 .................................................................
3/2.2 .................................................................
5/3.7 .................................................................
7.5/5.5 ..............................................................
10/7.5 ...............................................................
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75.5
85.5
86.5
87.5
88.5
89.5
Frm 00021
4
80.0
84.0
85.5
86.5
87.5
88.5
90.2
Fmt 4701
Enclosed motors
(number of poles)
2
82.5
84.0
84.0
86.5
87.5
88.5
89.5
Sfmt 4702
8
¥
82.5
84.0
84.0
85.5
87.5
88.5
E:\FR\FM\05JAP2.SGM
6
74.0
77.0
82.5
84.0
85.5
85.5
88.5
05JAP2
4
80.0
85.5
86.5
87.5
87.5
89.5
89.5
2
82.5
84.0
84.0
87.5
87.5
89.5
89.5
75.5
82.5
84.0
85.5
87.5
88.5
89.5
668
Federal Register / Vol. 76, No. 3 / Wednesday, January 5, 2011 / Proposed Rules
NOMINAL FULL-LOAD EFFICIENCIES OF FIRE PUMP MOTORS—Continued
Nominal full-load efficiency
Motor horsepower/
standard kilowatt equivalent
Open motors
(number of poles)
Enclosed motors
(number of poles)
8
6
4
2
15/11 ................................................................
20/15 ................................................................
25/18.5 .............................................................
30/22 ................................................................
40/30 ................................................................
50/37 ................................................................
60/45 ................................................................
75/55 ................................................................
100/75 ..............................................................
125/90 ..............................................................
150/110 ............................................................
200/150 ............................................................
250/186 ............................................................
300/224 ............................................................
350/261 ............................................................
400/298 ............................................................
450/336 ............................................................
500/373 ............................................................
89.5
90.2
90.2
91.0
91.0
91.7
92.4
93.6
93.6
93.6
93.6
93.6
94.5
................
................
................
................
................
90.2
91.0
91.7
92.4
93.0
93.0
93.6
93.6
94.1
94.1
94.5
94.5
95.4
95.4
95.4
................
................
................
(c) Each general purpose electric
motor (subtype II) with a power rating
of 1 horsepower or greater, but not
greater than 200 horsepower, including
a NEMA Design B motor that is a
general purpose electric motor (subtype
II), manufactured (alone or as a
component of another piece of
91.0
91.0
91.7
92.4
93.0
93.0
93.6
94.1
94.1
94.5
95.0
95.0
95.4
95.4
95.4
95.4
95.8
95.8
8
89.5
90.2
91.0
91.0
91.7
92.4
93.0
93.0
93.0
93.6
93.6
94.5
94.5
95.0
95.0
95.4
95.8
95.8
6
4
88.5
89.5
89.5
91.0
91.0
91.7
91.7
93.0
93.0
93.6
93.6
94.1
94.5
................
................
................
................
................
90.2
90.2
91.7
91.7
93.0
93.0
93.6
93.6
94.1
94.1
95.0
95.0
95.0
95.0
95.0
................
................
................
2
91.0
91.0
92.4
92.4
93.0
93.0
93.6
94.1
94.5
94.5
95.0
95.0
95.0
95.4
95.4
95.4
95.4
95.8
90.2
90.2
91.0
91.0
91.7
92.4
93.0
93.0
93.6
94.5
94.5
95.0
95.4
95.4
95.4
95.4
95.4
95.4
equipment) shall have a nominal full
load efficiency no less than the
following:
NOMINAL FULL-LOAD EFFICIENCIES OF GENERAL PURPOSE ELECTRIC MOTORS
[Subtype II]
Nominal full-load efficiency
Motor horsepower/
standard kilowatt equivalent
Open motors
(number of poles)
8
kgrant on DSKGBLS3C1PROD with BILLS
1/.75 .................................................................
1.5/1.1 ..............................................................
2/1.5 .................................................................
3/2.2 .................................................................
5/3.7 .................................................................
7.5/5.5 ..............................................................
10/7.5 ...............................................................
15/11 ................................................................
20/15 ................................................................
25/18.5 .............................................................
30/22 ................................................................
40/30 ................................................................
50/37 ................................................................
60/45 ................................................................
75/55 ................................................................
100/75 ..............................................................
125/90 ..............................................................
150/110 ............................................................
200/150 ............................................................
(d) Each NEMA Design B motor that
is a general purpose electric motor with
a power rating of more than 200
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6
74.0
75.5
85.5
86.5
87.5
88.5
89.5
89.5
90.2
90.2
91.0
91.0
91.7
92.4
93.6
93.6
93.6
93.6
93.6
4
80.0
84.0
85.5
86.5
87.5
88.5
90.2
90.2
91.0
91.7
92.4
93.0
93.0
93.6
93.6
94.1
94.1
94.5
94.5
Enclosed motors
(number of poles)
2
82.5
84.0
84.0
86.5
87.5
88.5
89.5
91.0
91.0
91.7
92.4
93.0
93.0
93.6
94.1
94.1
94.5
95.0
95.0
................
82.5
84.0
84.0
85.5
87.5
88.5
89.5
90.2
91.0
91.0
91.7
92.4
93.0
93.0
93.0
93.6
93.6
94.5
horsepower, but not greater than 500
horsepower, manufactured (alone or as
a component of another piece of
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8
6
74.0
77.0
82.5
84.0
85.5
85.5
88.5
88.5
89.5
89.5
91.0
91.0
91.7
91.7
93.0
93.0
93.6
93.6
94.1
4
80.0
85.5
86.5
87.5
87.5
89.5
89.5
90.2
90.2
91.7
91.7
93.0
93.0
93.6
93.6
94.1
94.1
95.0
95.0
2
82.5
84.0
84.0
87.5
87.5
89.5
89.5
91.0
91.0
92.4
92.4
93.0
93.0
93.6
94.1
94.5
94.5
95.0
95.0
75.5
82.5
84.0
85.5
87.5
88.5
89.5
90.2
90.2
91.0
91.0
91.7
92.4
93.0
93.0
93.6
94.5
94.5
95.0
equipment) shall have a nominal full
load efficiency no less than the
following:
E:\FR\FM\05JAP2.SGM
05JAP2
669
Federal Register / Vol. 76, No. 3 / Wednesday, January 5, 2011 / Proposed Rules
NOMINAL FULL-LOAD EFFICIENCIES OF NEMA DESIGN B GENERAL PURPOSE ELECTRIC MOTORS
Nominal full-load efficiency
Motor horsepower/
standard kilowatt equivalent
Open motors
(number of poles)
8
250/186
300/224
350/261
400/298
450/336
500/373
............................................................
............................................................
............................................................
............................................................
............................................................
............................................................
(e) For purposes of determining the
required minimum nominal full load
efficiency of an electric motor that has
a horsepower or kilowatt rating between
two horsepower or two kilowatt ratings
listed in any table of energy
conservation standards in paragraphs (a)
through (d) of this section, each such
motor shall be deemed to have a listed
horsepower or kilowatt rating,
determined as follows:
(1) A horsepower at or above the
midpoint between the two consecutive
horsepowers shall be rounded up to the
higher of the two horsepowers;
(2) A horsepower below the midpoint
between the two consecutive
horsepowers shall be rounded down to
the lower of the two horsepowers; or
(3) A kilowatt rating shall be directly
converted from kilowatts to horsepower
using the formula 1 kilowatt = (1/0.746)
horsepower. The conversion should be
calculated to three significant decimal
places, and the resulting horsepower
shall be rounded in accordance with
paragraphs (e)(1) or (e)(2) of this section,
whichever applies.
(f) This section does not apply to
definite purpose motors, special
purpose motors, or those motors
exempted by the Secretary.
10. In § 431.31, paragraph (a)(2) is
revised to read as follows:
kgrant on DSKGBLS3C1PROD with BILLS
§ 431.31
Labeling requirements.
(a) * * *
(2) Display of required information.
All orientation, spacing, type sizes, type
faces, and line widths to display this
required information shall be the same
as or similar to the display of the other
performance data on the motor’s
permanent nameplate. The nominal full
load efficiency shall be identified either
by the term ‘‘Nominal Efficiency’’ or
‘‘Nom. Eff.’’ or by the terms specified in
paragraph 12.58.2 of NEMA MG1–2009,
(incorporated by reference, see § 431.15)
as for example ‘‘NEMA Nom. Eff. __.’’
The DOE number shall be in the form
‘‘CC__.
*
*
*
*
*
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6
94.5
................
................
................
................
................
95.4
95.4
95.4
................
................
................
4
Enclosed motors
(number of poles)
2
95.4
95.4
95.4
95.4
95.8
95.8
8
94.5
95.0
95.0
95.4
95.8
95.8
11. Appendix A to subpart B of part
431 is revised to read as follows:
Appendix A to Subpart B of Part 431—
Policy Statement for Electric Motors
Covered Under the Energy Policy and
Conservation Act
This is in part an update to a reprint of a
policy statement that was originally
published on November 5, 1997 at 62 FR
59978 and is herein modified according to
the Energy Policy and Conservation Act, as
amended by the Energy Independency and
Security Act of 2007.
Policy Statement for Electric Motors Covered
Under the Energy Policy and Conservation
Act
I. Introduction
The Energy Policy and Conservation Act
(EPCA), 42 U.S.C. 6311, et seq., as amended
by the Energy Policy Act of 1992 (EPAct
1992), established energy efficiency
standards and test procedures for certain
commercial and industrial electric motors
manufactured (alone or as a component of
another piece of equipment).1 EPCA also
directs the Department of Energy (DOE or
Department) to implement the statutory test
procedures prescribed for motors, and to
require efficiency labeling of motors and
certification that covered motors comply
with the standards. (42 U.S.C. 6314–6315)
On December 19, 2007, the Energy
Independence and Security Act of 2007
(EISA 2007) struck EPCA section 340(13)(A)
and all that followed through the end of
subpart (A), including the definition of
‘‘electric motor,’’ and inserted in its place two
new subsections under the heading ‘‘electric
motor’’ that defined two subtypes of general
purpose electric motors: General purpose
electric motor (subtype I) and general
purpose electric motor (subtype II). (42
U.S.C. 6311(13)(A) and (B)) Section 313(b)(1)
of EISA 2007 updated the energy
conservation standards for those electric
motors already covered by EPCA (general
purpose electric motor (subtype I)) and
established energy conservation standards for
specific motor types not previously covered,
including: General purpose electric motor
1 The term ‘‘manufacture’’ means ‘‘to manufacture,
produce, assemble or import.’’ EPCA § 321(10).
Thus, the standards apply to motors produced,
assembled, imported or manufactured after these
statutory deadlines.
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................
................
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2
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95.4
95.4
95.4
95.4
95.4
(subtype II), fire pump motors, and NEMA
Design B, general purpose electric motors
rated at 200 to 500 horsepower. (42 U.S.C.
6313(b)(2)) The EISA 2007 energy
conservation standards apply to covered
motors manufactured or imported on or after
December 19, 2010. The EISA 2007
definitions and efficiency standards were
subsequently codified under §§ 431.12 and
431.25 respectively, of Title 10 of the Code
of Federal Regulations, Part 431 (10 CFR part
431).
On October 5, 1999, the Department
published a Final Rule on Test Procedures
for Electric Motors that clarified the several
definitions including ‘‘electric motor,’’
‘‘general purpose electric motor,’’ ‘‘general
purpose electric motor (subtype I),’’ and
‘‘general purpose electric motor (subtype II).’’
Notwithstanding the above referenced
provisions, in the past there has been
uncertainty as to which motors EPCA covers.
Consequently, motor manufacturers
requested that the Department provide
additional guidance as to which types of
motors are ‘‘general purpose electric motors
(subtype I),’’ ‘‘general purpose electric motors
(subtype II),’’ ‘‘definite purpose motors,’’ and
‘‘special purpose motors’’ under EPCA. The
policy statement that follows represents the
Department’s interpretation of existing
statutes and regulations, informed by input
from motor manufacturers and energy
efficiency advocates. It is not intended to
create or remove any rights or duties, nor is
it intended to affect any other aspect of
EPCA, EISA or DOE regulations. It does not,
and is not intended to, have the force and
effect of law.
II. Guidelines for Determining Whether a
Motor Is Covered as a General Purpose
Electric Motor (Subtype I) or (Subtype II)
A. General
EPCA, as amended by EISA 2007, specifies
minimum nominal full-load energy efficiency
standards for several types of electric motors,
including general purpose electric motors
(subtype I) and general purpose electric
motors (subtype II). Motors with features or
characteristics that do not meet the
definitions of the above terms are not
required to meet the corresponding EPCA
requirements. An example includes variable
speed motors operated on a variable
frequency power supply. Similarly, multispeed motors and variable-speed motors,
such as inverter-duty motors, are not covered
equipment, based on their intrinsic design for
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Federal Register / Vol. 76, No. 3 / Wednesday, January 5, 2011 / Proposed Rules
use at variable speeds. However, NEMA
Design A, B, or C motors that are single
speed, meet all other criteria under the
definitions in EPCA for general purpose
electric motors (subtype I) or general purpose
electric motors (subtype II), and can be used
with an inverter in variable speed
applications as an additional feature, are
covered equipment under EPCA. In other
words, being suitable for use on an inverter
by itself does not exempt a motor from
general purpose electric motors (subtype I)
and general purpose electric motors (subtype
II) EPCA requirements.
kgrant on DSKGBLS3C1PROD with BILLS
B. Electrical Features
EPCA, as amended by EISA, establishes
two categories of electric motors: General
purpose electric motor (subtype I) or a
general purpose electric motor (subtype II). In
DOE’s view, a general purpose electric motor
(subtype I) or (subtype II) operates on
polyphase alternating current 60-Hertz
sinusoidal power, and can be operated on
either 230 volts or 460 volts, or both; or can
be operated with voltage of not more than
600 volts (other than 230 or 460 volts).
Furthermore, ‘‘can be operated’’ implicitly
means that the motor can be operated
successfully. According to National Electrical
Manufacturers Association (NEMA)
Standards Publication MG1–2009, paragraph
12.44, ‘‘Variations from Rated Voltage and
Rated Frequency,’’ alternating-current motors
must operate successfully under running
conditions at rated load with a variation in
the voltage or the frequency up to the
following: plus or minus 10 percent of rated
voltage, with rated frequency for induction
motors; 2 plus or minus 5 percent of rated
frequency, with rated voltage; and a
combined variation in voltage and frequency
of 10 percent (sum of absolute values) of the
rated values, provided the frequency
variation does not exceed plus or minus 5
percent of rated frequency. DOE believes
that, for purposes of determining whether a
motor is a general purpose electric motor
(subtype I) or (subtype II), these criteria
should be used to determine when a motor
that is not rated at 230 or 460 volts or 60
Hertz can be operated at such voltage and
frequency; or when it is operated at a rated
voltage of not more than 600 volts (other than
230 or 460 volts).3
Under sections 340(13)(A) and 342(b)(3) of
EPCA, as amended by EISA 2007, general
2 For example, a motor that is rated at 220 volts
should operate successfully on 230 volts, since 220
+ .10(220) = 242 volts. A 208 volt motor, however,
would not be expected to operate successfully on
230 volts, since 208 + .10(208) = 228.8 volts.
3 The Department understands that a motor that
can operate at such voltage and frequency, based on
variations defined for successful operation, will not
necessarily perform in accordance with the industry
standards established for operation at the motor’s
rated voltage and frequency. In addition, motors are
to be tested at their rated values under the test
procedures prescribed by EPCA. Therefore, in
DOE’s view, a motor that is not rated for 230 or 460
volts, or 60 Hertz, but that can be successfully
operated at these levels, must meet the energy
conservation standards at its rated voltage(s) and
frequency. When a motor is rated to include a wider
voltage range that includes 230/460 volts, the motor
should meet the energy conservation standards at
230 volts or 460 volts.
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purpose electric motors (subtype I) include
motors that meet the electrical performance
characteristics of NEMA Design A or B; and
general purpose electric motors (subtype II)
include motors that meet the electrical
performance characteristics NEMA Design A,
B, or C. NEMA Standards Publication MG1
assigns design letters, such as Design A, B,
C, D, or E, to identify various combinations
of electrical performance characteristics,
including: locked rotor torque, breakdown
torque, pull-up torque, locked rotor current,
and slip at rated load. In the Department’s
view, a motor must meet the electrical
performance characteristics of a NEMA
Design A, B, or C motor to be covered as a
general purpose electric motor (subtype I) or
general purpose electric motor (subtype II).
For example, as to locked rotor torque, MG1
specifies performance values for Design A, B,
or C motors of a given speed and horsepower.
A motor that does not meet the locked rotor
torque requirements for Design A, B, or C is
not a general purpose electric motor (subtype
I) or general purpose electric motor (subtype
II) covered under EPCA.
C. Size
Motors designed for use on a particular
type of application which are in a frame size
that is one or more frame series larger than
the frame size assigned to that rating in
NEMA Standards Publication MG1–2009 Part
13, ‘‘Frame Assignments for Alternating
Current Integral Horsepower Induction
Motors,’’ are not, in the Department’s view,
usable in most general purpose applications.
This is due to the physical size increase
associated with a frame series change. A
frame series is defined by the first two digits
of the frame size designation, and is a
measure of the distance between the
centerline of the shaft and the bottom of the
mounting feet. For example, 324T and 326T
are both in the same frame series, while 364T
is in the next larger frame series. Hence, in
the Department’s view, a motor that is of a
larger frame series than normally assigned to
that standard rating of motor would not be
usable in most general purpose applications,
and therefore is not covered by EPCA’s
definitions of general purpose electric motors
(Subtype I) and general purpose electric
motors (Subtype II). A physically larger
motor within the same frame series would be
covered, however, because it would be usable
in most general purpose applications.
Motors built in a T-frame series or a Tframe size smaller than that assigned by
MG1–2009, or motors built in a U-frame
series or a U-frame size smaller than that
assigned by MG1–2009, are also considered
usable in most general purpose applications.
This is because simple modifications can
generally be made to fit a smaller motor in
place of a motor with a larger frame size
assigned in conformity with NEMA MG1.
Therefore, DOE believes that such smaller
motors are covered by EPCA.
D. Motors With Seals
Some electric motors have seals to prevent
ingress of water, dust, oil, and other foreign
materials into the motor. DOE understands
that, typically, a manufacturer will add seals
to a motor that it manufactures, so that it will
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sell two motors that are identical except that
one has seals and the other does not. In such
a situation, if the motor without seals is
covered by EPCA’s energy conservation
standards, then the motor with seals will also
be covered because it can still be used in
most general purpose applications. DOE
understands, however, that manufacturers
previously believed motors with seals were
not covered under EPCA, in part because
IEEE Standard 112, ‘‘Test Procedure for
Polyphase Induction Motors and Generators,’’
prescribed by EPCA, does not address how to
test a motor with seals installed.
The efficiency rating of such a motor, if
determined with seals installed and when the
motor is new, apparently would significantly
understate the efficiency of the motor as
operated. New seals are stiff, and provide
friction that is absent after their initial breakin period. DOE understands that, after this
initial period, the efficiency ratings
determined for the same motor with and
without seals would be virtually identical. To
construe EPCA, therefore, as requiring such
separate efficiency determinations would
impose an unnecessary burden on
manufacturers.
In light of the foregoing, the Department
believes that EPCA generally permits the
efficiency of a motor with seals to be
determined without the seals installed.
Furthermore, notwithstanding the prior belief
that such motors are not covered by EPCA,
use of this approach to determining
efficiency will enable manufacturers to meet
EPCA’s standards with respect to covered
motors with seals.
III. Discussion of How DOE Would Apply
EPCA Definitions, Using the Foregoing
Guidelines
Using the foregoing guidelines, the
attached matrix provides DOE’s view as to
which motors with common features are
covered by EPCA’s definitions of ‘‘general
purpose electric motor (subtype I)’’ and
‘‘general purpose electric motor (subtype II).’’
Because manufacturers produce many basic
models that have many modifications of
generic general purpose motors, the
Department does not represent that the
matrix is all-inclusive. Rather it is a set of
examples demonstrating how DOE would
apply EPCA definitions, as construed by the
above guidelines, to various motor types. The
matrix classifies motors into five categories,
which are discussed in the following
passages.
Category I—General Purpose Electric Motors
(Subtype I) and (Subtype II)
Category I consists of general purpose
electric motors (subtype I) and general
purpose electric motors (subtype II).
The Department understands that some
motors essentially are relatively simple
modifications of generic general purpose
electric motors (subtype I) or (subtype II).
Modifications could consist, for example, of
minor changes such as the addition of
temperature sensors or a heater, the addition
of a shaft extension and a brake disk from a
kit, or changes in exterior features such as the
motor housing. Such motors can still be used
for most general purpose applications, and
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the modifications have little or no effect on
motor performance. Nor do the modifications
affect energy efficiency.
Category II—Specific Purpose Electric Motors
That Can Be Used in Most General Purpose
Applications
Category II motors are essentially
modifications of generic general purpose
motors for use on a particular type of
application. These specific purpose Category
II motors have been considered ‘‘definitepurpose’’ motors in common industry
parlance, but are covered as general purpose
electric motors (subtype I or II) under EPCA
because they can be used in most general
purpose applications. Category II motors are
often electric motors with horsepower ratings
that fall between the horsepower ratings in
Section 342(b) of EPCA, thermally protected
motors, and motors with roller bearings.
Categories III, IV and V—Definite Purpose
Motors, Special Purpose Motors, and Motors
Outside the Scope of ‘‘General Purpose
Electric Motor (Subtype I)’’ and ‘‘General
Purpose Electric Motor (Subtype II)’’
Category III consists of ‘‘definite purpose
motors’’ as defined in EPCA and 10 CFR
431.12. Section 6311(13)(C) of EPCA, as
amended by EISA 2007, defines the term
‘‘definite purpose motor’’ as ‘‘any motor
designed in standard ratings with standard
operating characteristics or standard
mechanical construction for use under
service conditions other than usual or for use
on a particular type of application and which
cannot be used in most general purpose
applications.’’ EPCA does not prescribe
standards and test procedures for ‘‘definite
purpose motors.’’
Category IV consists of ‘‘special purpose
motors’’ as defined in EPCA and 10 CFR
431.12. Section 6311(13)(D) of EPCA, as
amended by EISA 2007, defines the term
‘‘special purpose motor’’ as ‘‘any motor, other
than a general purpose motor or definite
purpose motor, which has special operating
characteristics or special mechanical
construction, or both, designed for a
particular application.’’ EPCA does not
prescribe standards and test procedures for
‘‘special purpose motors.’’
Category V consists of electric motors
outside the scope of ‘‘general purpose electric
motor (subtype I)’’ and ‘‘general purpose
electric motor (subtype II)’’ as defined in
EPCA and 10 CFR 431.12.
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Totally Enclosed Nonventilated (TENV) and
Totally Enclosed Air-Over (TEAO) Motors
A motor designated in NEMA MG1–2009,
paragraph MG1–1.26.1, as ‘‘totally enclosed
non-ventilated (IC410)’’ 4 is ‘‘a frame-surface
4 IP refers to the IEC Standard 34–5: Classification
of degrees of protection provided by enclosures for
rotating machines. IC refers to the IEC Standard 34–
6: Methods of cooling rotating machinery. The IP
and IC codes are referenced in the NEMA
designations for TENV and TEAO motors in MG1–
2009 Part 1, ‘‘Classification According to
Environmental Protection and Methods of Cooling,’’
as a Suggested Standard for Future Design, since the
TENV and TEAO motors conform to IEC Standards.
Details of protection (IP) and methods of cooling
(IC) are defined in MG1 Part 5 and Part 6,
respectively.
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cooled totally enclosed machine which is
only equipped for cooling by free
convection.’’ This means that the motor,
when properly applied, does not require the
use of any additional means of cooling
installed external to the motor enclosure. The
TENV motor is cooled by natural conduction
and natural convection of the motor heat into
the surrounding environment. The general
requirement for the installation of the TENV
motor is that it not be placed in a restricted
space that would inhibit this natural
dissipation of the motor heat. Most general
purpose applications use motors which
include a means for forcing air flow through
or around the motor and usually through the
enclosed space and, therefore, can be used in
spaces that are more restrictive than those
required for TENV motors. Placing a TENV
motor in such common restricted areas is
likely to cause the motor to overheat. The
TENV motor may also be larger than the
motors used in most general purpose
applications, and would take up more of the
available space, thus reducing the size of the
open area surrounding the motor. Installation
of a TENV motor might require, therefore, an
additional means of ventilation to
continually exchange the ambient around the
motor.
A motor designated in NEMA MG1–2009,
paragraph 1.26.9, as ‘‘totally-enclosed airover (IP54, IC417)’’ is a totally enclosed
frame-surface cooled machine intended for
exterior cooling by a ventilating means
external to the machine.’’ That is, a TEAO
motor has a cooling mechanism that is
separate and independent from the motor,
such as a fan. The motor must be provided
with the additional ventilation to prevent it
from overheating.
Consequently, neither the TENV motor nor
the TEAO motor would be suitable for most
general purpose applications, and, the
Department considers these motors as
‘‘definite purpose motors.’’
Integral Gearmotors
An ‘‘integral gearmotor’’ is an assembly of
a motor and a specific gear drive or assembly
of gears, such as a gear reducer, as a unified
package. The motor portion of an integral
gearmotor is not necessarily a complete
motor, since the end bracket or mounting
flange of the motor portion is also part of the
gear assembly and cannot be operated when
separated from the complete gear assembly.
Typically, an integral gearmotor is not
manufactured to standard T-frame
dimensions specified in NEMA MG1, or
standard U-frame dimensions. Moreover,
neither the motor portion nor the entire
integral gearmotor, are capable of being used
in most general purpose applications without
significant modifications. An integral
gearmotor is also designed for a specific
purpose and can have unique performance
characteristics, physical dimensions, and
casing, flange and shafting configurations.
Consequently, DOE considers integral
gearmotors to be outside the scope of ‘‘general
purpose electric motor (subtype I)’’ or
‘‘general purpose electric motor (subtype II).’’
However, an electric motor which is
connected to a stand-alone mechanical gear
drive or an assembly of gears, such as a gear
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reducer connected by direct coupling, belts,
bolts, a kit, or other means, is covered
equipment under the definitions of ‘‘general
purpose electric motor (subtype I)’’ or
‘‘general purpose electric motor (subtype II).’’
Shafts
1. Shaft diameter—The shaft diameter is
designated in NEMA MG1 by the identifier
‘‘U’’ and in IEC 60072–1 by the identifier ‘‘H.’’
The strength of a shaft is dependent on the
diameter of the shaft. If the diameter of a
shaft is smaller than the standard diameter,
the shaft may not be of sufficient strength
required for general purpose belted and
overhung loads. If the diameter of a shaft is
bigger than the standard diameter, it may not
be possible to install a coupling or pulley
with an inside diameter of sufficient size to
accommodate the oversized shaft and
provide sufficient remaining material of
sufficient strength required for general
purpose applications.
The Department believes that couplings
and pulleys appropriate for a given
horsepower rating in the standard (NEMA or
IEC) frame number series should be available
to fit shaft diameters which are as large as the
standard diameter for the next higher frame
number series or as small as the standard
diameter for the next lower frame number
series. A motor otherwise considered to be a
‘‘general purpose electric motor (subtype I)’’
or ‘‘general purpose electric motor (subtype
II),’’ but with a shaft diameter within the
range bounded by the standard diameters for
the next lower and next higher frame number
series, is considered to be a ‘‘general purpose
electric motor (subtype I)’’ or ‘‘general
purpose electric motor (subtype II).’’ For the
purpose of providing the requested guidance,
the Department does not consider a motor
with a shaft diameter smaller than that of the
next lower frame number series or larger than
that of the next higher frame number series
to be a ‘‘general purpose electric motor
(subtype I)’’ or ‘‘general purpose electric
motor (subtype II).’’
2. Shaft length—The useable shaft length is
designated in NEMA MG1 by the identifier
‘‘N–W’’ and in IEC 60072–1 by the identifier
‘‘E.’’ A shaft length different from the
standard dimensions would require a change
in the overall space required for the motor
and a change in the position in which the
motor could be mounted compared to a
motor having a shaft of standard length. A
motor with a shaft of shorter length should
fit within the space of a motor having a shaft
of standard length, although the mounting
base may have to be modified to
accommodate the change in the position of
the mounting holes in the base of the motor.
However, it is possible that the shaft may be
too short to accommodate the size of a
coupling or pulley required for the load in
many general purpose applications. The
Department believes that appropriate
couplings or pulleys are available for shafts
with a length not shorter than 50 percent of
the standard length. A motor with a shaft of
longer length would not fit within the space
of a motor having a shaft of standard length
and the location of some of the mounting
holes in the base of the motor may be beyond
the mounting base for the motor. The end of
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the motor with a longer shaft length may also
extend beyond the equipment where it could
possibly present some concerns should
persons or other equipment unintentionally
come in contact with the motor. Objects in
closer proximity of the non-drive end of the
motor with the longer shaft length may
interfere with the cooling of the motor. The
Department believes that there is some
additional space available in most general
purpose applications to accommodate a shaft
somewhat longer than standard length, but
that accommodating for increased length may
be more difficult than accommodating for
shorter length. The Department believes that
an increase of 25 percent in standard shaft is
acceptable in most general purpose
applications. For the purpose of providing
the requested guidance, a motor with shaft
length between 0.5 to 1.25 times the standard
length for the appropriate NEMA MG1 or IEC
standard does not preclude the motor from
being considered ‘‘general purpose electric
motor (subtype I)’’ or ‘‘general purpose
electric motor (subtype II).’’ A motor with a
shaft length outside of that range is not
considered to be a ‘‘general purpose electric
motor (subtype I)’’ or ‘‘general purpose
electric motor (subtype II).’’
3. Shoulder location—The distance from
the centerline of the mounting hole in the
nearest foot to the shoulder on the drive end
shaft is designated in NEMA MG1 by the
identifier ‘‘BA’’ and in IEC 60072–1 by the
identifier ‘‘C.’’ The location of the shoulder
limits the position at which the coupling,
pulley, or load can be installed. The ‘‘BA’’ or
‘‘C’’ dimension is separate from that of the
useable shaft length ‘‘N–W’’ or ‘‘E.’’ The two
values combined define the distance from the
centerline of the mounting hole in the nearest
foot to the end of the shaft. A change in the
‘‘BA’’ or ‘‘C’’ dimension can then result in
introducing installation problems similar to
those resulting from a change in the ‘‘N–W’’
or ‘‘E’’ dimension. A decrease in the ‘‘BA’’ or
‘‘C’’ dimension may require modifying the
mounting base to accommodate the shorter
distance between the mounting holes and the
end of the shaft, but there should be no
problem installing the appropriate coupling
or pulley for most general purpose
applications. As in the case of the ‘‘N–W’’ or
‘‘E’’ dimension, a significant increase in the
‘‘BA’’ or ‘‘C’’ dimension could make it difficult
to install the motor in most general purpose
applications or could introduce concerns of
safety. For the purpose of providing the
requested guidance, an increase in the ‘‘BA’’
or ‘‘C’’ dimension up to 0.25 times the
standard useable shaft length dimension ‘‘N–
W’’ or ‘‘E’’ does not preclude the motor from
being considered a ‘‘general purpose electric
motor (subtype I)’’ or ‘‘general purpose
electric motor (subtype II).’’ The Department
does not consider a motor with an increase
in the ‘‘BA’’ or ‘‘C’’ dimension greater than
0.25 times that of the ‘‘N–W’’ or ‘‘E’’
dimension to be a ‘‘general purpose electric
motor (subtype I)’’ or ‘‘general purpose
electric motor (subtype II).’’
4. Special design—The standard
dimensions in NEMA MG–1 are for smooth
shafts with or without keyways. Such shafts
are used with pulleys and couplings
commonly found in most general purpose
applications. The shaft may be straight or
tapered. Other shaft designs are provided for
particular applications. The Department has
examined the issue of special shafts with
respect to whether or not both a pulley and
a coupling could be separately installed on
the special shaft. An example of one common
modification of the shaft design is to include
a flat section in place of the keyway for the
purpose of securing a coupling, pulley, or
driven equipment on the shaft. It is the
Department’s belief that such a modification
would not make it difficult to use the motor
in most general purpose applications and
would not remove the motor from being
considered a ‘‘general purpose electric
motor.’’ Some special purpose or definite
purpose applications require that the shaft
have a threaded section, for securing the
connection to the driven equipment in place.
A threaded section on the outside of the shaft
surface inhibits the proper installation of a
pulley or coupling. DOE considers motors
with such threaded shafts to be ‘‘definite
purpose’’ or ‘‘special purpose’’ motors.
However, a threaded hole in the shaft should
not interfere with the installation of a pulley
or coupling and DOE does not consider this
to be a design which exempts the motor from
being classified as a ‘‘general purpose electric
motor (subtype I)’’ or ‘‘general purpose
electric motor (subtype II).’’ As another
example, motors with stepped shafts,
consisting of lengths of differing diameter
over the useable length of the shaft, make it
difficult to properly install a pulley or
coupling for general purpose applications.
DOE considers motors with a stepped shaft
are considered to be ‘‘definite purpose’’ or
‘‘special purpose’’ motors. The Department
recognizes that the aforementioned designs
are just a few examples of special shaft
designs and that it is not possible to cover
all possible variations of shaft design in this
guidance. Rather, the Department offers the
guidance that if both a properly sized pulley
and properly sized coupling can be installed
on a non-standard shaft at minimal cost, then
the motor is not precluded from being
considered to be a ‘‘general purpose electric
motor (subtype I)’’ or ‘‘general purpose
electric motor (subtype II).’’
IV. Further Information
The Department has incorporated this
Policy Statement into appendix A to subpart
B of Title 10 of the Code of Federal
Regulations, Part 431, to provide guidance as
to the Department’s interpretation of EPCA,
as amended. Any comments or suggestions
with respect to this Policy Statement, as well
as requests for further information, should be
addressed to the Program Manager, Building
Technologies, EE–2J, U.S. Department of
Energy, Forrestal Building, 1000
Independence Avenue, SW., Washington, DC
20585–0121.
EXAMPLES OF MANY COMMON FEATURES OR MOTOR MODIFICATIONS TO ILLUSTRATE HOW THE EPCA DEFINITIONS AND
DOE GUIDELINES WOULD BE APPLIED TO EPCA MOTOR CATEGORIES: GENERAL PURPOSE ELECTRIC MOTOR
SUBTYPE I) AND GENERAL PURPOSE ELECTRIC MOTOR (SUBTYPE II); DEFINITE PURPOSE; AND SPECIAL PURPOSE
Category 1
Motor modification
Explanation
II
III
IV
V
A. Electrical Modifications:
1. Altitude .................................................
2. Ambient ...............................................
3. Multispeed ...........................................
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X
X
........
........
........
........
........
........
........
........
........
........
........
........
X
General purpose up to a frame series change larger.
General purpose up to a frame series change larger.
General Purpose Electric Motors (Subtype I) and (Subtype
II) apply to single speed only.
4. Special Leads ......................................
5. Special Insulation ................................
6. Encapsulation ......................................
7. High Service Factor .............................
8. Space Heaters .....................................
9. Wye Delta Start ...................................
10. Part Winding Start .............................
11. Temperature Rise ..............................
12. Thermally Protected ..........................
13. Thermostat/Thermistor ......................
14. Special Voltages ................................
X
X
........
X
X
X
X
X
........
X
X
........
........
........
........
X
........
........
........
Due to special construction.
General purpose up to a frame series change larger.
........
X
........
........
........
........
........
........
General purpose up to a frame series change larger.
Requires retesting and third party agency approval.
........
........
........
........
15. Intermediate Horsepowers ................
........
X
........
........
........
EPCA applies to motors operating on voltages less than
600 volts at 60 Hertz.
Round horsepower according to 10 CFR 431.42 for efficiency.
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673
EXAMPLES OF MANY COMMON FEATURES OR MOTOR MODIFICATIONS TO ILLUSTRATE HOW THE EPCA DEFINITIONS AND
DOE GUIDELINES WOULD BE APPLIED TO EPCA MOTOR CATEGORIES: GENERAL PURPOSE ELECTRIC MOTOR
SUBTYPE I) AND GENERAL PURPOSE ELECTRIC MOTOR (SUBTYPE II); DEFINITE PURPOSE; AND SPECIAL PURPOSE—
Continued
Category 1
Motor modification
Explanation
I
16. Frequency ..........................................
17. Fungus/Trop Insulation ......................
B. Mechanical Modifications:
18. Special Balance .................................
19. Bearing Temp. Detector ....................
20. Special Base/Feet .............................
21. Special Conduit Box ..........................
22. Auxiliary Conduit Box ........................
23. Special Paint/Coating ........................
24. Drains ................................................
25. Drip Cover .........................................
26. Ground. Lug/Hole ..............................
27. Screens on ODP Enclosure ..............
28. Mounting F1, F2; W1–4; C1, 2 .........
C. Bearings:
29. Bearing Caps .....................................
30. Roller Bearings ..................................
31. Shielded Bearings .............................
32. Sealed Bearings ................................
33. Thrust Bearings .................................
34. Clamped Bearings .............................
35. Sleeve Bearings ................................
D. Special Endshields:
36. C Face ...............................................
37. D Flange ............................................
38. Customer Defined .............................
E. Seals:
39. Contact Seals ....................................
II
III
IV
V
........
........
........
........
X
EPCA applies to motors operating on voltages less than
600 volts at 60 Hertz.
........
........
........
X
Does not meet definition of T-frame or U-frame.
........
........
........
........
Foot-mounting, rigid base, and resilient base.
X
X
X
........
X
X
X
X
X
X
X
X
X
........
........
........
Test with a standard bearing.
........
........
........
........
........
X
........
........
Test with a standard bearing.
Special mechanical construction.
........
........
X
........
Special mechanical construction.
X
X
........
........
........
........
........
........
........
........
........
X
........
........
........
As defined in NEMA MG1.
As defined in NEMA MG1.
Special design for a particular application.
X
........
........
........
........
40. Non-Contact Seal ..............................
X
........
........
........
........
Includes lip seals and taconite seals—test with seals removed.
Includes labyrinth and slinger seals—test with seals installed.
F. Shafts:
41. Standard Shafts/NEMA MG1 ............
X
........
........
........
........
42. Non-Standard Shafts or Special
Shafts.
X
........
........
........
........
........
........
........
........
X
X
........
........
........
........
........
........
........
........
X
X
........
........
........
........
........
........
........
........
X
X
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........
X
X
........
X
........
........
........
........
........
Includes single and double, cylindrical, tapered, and short
shafts.
Shaft diameter bound by the standard diameters for the
next lower and next higher frame number series.
Shaft diameter smaller than that of the next lower frame
number series or larger than that of the next higher frame
number.
Shaft length from 0.5 to 1.25 times the standard length for
the appropriate NEMA MG1 or IEC standard.
Shaft length outside the range from 0.5 to 1.25 times the
standard length for the appropriate NEMA MG1 or IEC
standard.
Shaft shoulder location with an increase in the ‘‘BA’’ or ‘‘C’’
dimension up to 0.25 times that standard useable shaft
length dimension ‘‘N–W’’ or ‘‘E’’.
A motor with an increase in the ‘‘BA’’ or ‘‘C’’ dimension
greater than 0.25 times that of the ‘‘N–W’’ or ‘‘E’’ dimension.
If both a properly sized pulley and properly sized coupling
can be separately installed on a non-standard shaft without significantly changing the shaft extension or mounting
configuration of the driven equipment.
43. Non-Standard Material ......................
G. Fans:
44. Special Material .................................
45. Quiet Design ......................................
H. Other Motors:
46. Washdown .........................................
47. Close-coupled pump .........................
48. Integral Gear Motor ...........................
X
X
........
........
........
........
........
........
........
........
........
........
........
........
X
Test with seals removed.
JM and JP frame assignments.
Typically special mechanical design, and not a T-frame or
U-frame; motor and gearbox inseparable and operate as
one system.
49. Vertical solid shaft normal thrust .......
50. Saw Arbor ..........................................
X
........
........
........
X
........
Special electrical/mechanical design.
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EXAMPLES OF MANY COMMON FEATURES OR MOTOR MODIFICATIONS TO ILLUSTRATE HOW THE EPCA DEFINITIONS AND
DOE GUIDELINES WOULD BE APPLIED TO EPCA MOTOR CATEGORIES: GENERAL PURPOSE ELECTRIC MOTOR
SUBTYPE I) AND GENERAL PURPOSE ELECTRIC MOTOR (SUBTYPE II); DEFINITE PURPOSE; AND SPECIAL PURPOSE—
Continued
Category 1
Motor modification
Explanation
I
II
III
IV
V
51. TENV .................................................
........
........
X
........
........
52. TEAO .................................................
........
........
X
........
........
53. Fire Pump ..........................................
X
........
........
........
........
54. Non-continuous .................................
........
........
........
........
X
55. Integral Brake Motor ..........................
........
........
........
X
........
Totally-enclosed non-ventilated; not equipped for cooling
(IP54, IC410).
Totally-enclosed air-over; requires airflow from external
source (IP54, IC417).
When safety certification is not required. See also EPCA
§ 342(b)(1).
EPCA covers only continuous ratings as general purpose
electric motor (subtype I) and (subtype II).
Integral brake design factory built within the motor.
1 Category
Category
Category
Category
Category
I—General purpose electric motors (subtype I) or (subtype II) as defined in EPCA.
II—Specific purpose electric motors that can be used in most general purpose applications.
III—Definite purpose motors as defined in EPCA.
IV—Special purpose motors as defined in EPCA.
V—Outside the scope of General purpose electric motors (subtype I) or (subtype II) as defined in EPCA.
12. Appendix B to subpart B of part
431 is revised to read as follows:
Appendix B to Subpart B of Part 431—
Uniform Test Method for Measuring
Nominal Full Load Efficiency of
Electric Motors
14. In § 431.443, revise paragraphs
(b)(1), (c)(1), and (c)(2), and add a new
paragraph (b)(2) to read as follows:
§ 431.443 Materials incorporated by
reference.
1. Definitions
Definitions contained in §§ 431.2 and
431.12 are applicable to this appendix.
2. Test Procedures
Efficiency and losses shall be determined
in accordance with NEMA MG1–2009,
paragraph 12.58.1, ‘‘Determination of Motor
Efficiency and Losses,’’ (incorporated by
reference, see § 431.15) and either:
(1) CSA Standard C390–10 (incorporated
by reference, see § 431.15), or
(2) IEEE Standard 112–2004 Test Method
B, Input-Output With Loss Segregation,
(incorporated by reference, see § 431.15).
3. Amendments to Test Procedures
Any revision to IEEE Standard 112–2004
Test Method B, to NEMA Standards
Publication MG1–2009, or to CSA Standard
C390–10 (incorporated by reference, see
§ 431.15) subsequent to promulgation of this
appendix B, shall not be effective for
purposes of test procedures required under
Part 431 and this appendix B, unless and
until Part 431 and this appendix B are
amended.
13. Section 431.441 is revised to read
as follows:
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Purpose and scope.
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*
*
*
*
(b) * * *
(1) CAN/CSA–C747–09 (‘‘CAN/CSA–
C747’’), Energy efficiency test methods
for small motors, October 1, 2009, IBR
approved for §§ 431.444; 431.447.
(2) CSA C390–10, Test methods,
marking requirements, and energy
efficiency levels for three-phase
induction motors, March 22, 2010, IBR
approved for §§ 431.444; 431.447.
(c) * * *
(1) IEEE Standard 112–2004, (‘‘IEEE
Std 112’’), Test Procedure for Polyphase
Induction Motors and Generators, Test
Method A, Input-Output, and Test
Method B, Input-Output with Loss
Segregation, 4 November 2004, IBR
approved for §§ 431.444; 431.447.
(2) IEEE Standard 114–2001, (‘‘IEEE
Std 114’’), Test Procedure for SinglePhase Induction Motors, 6 December
2001, IBR approved for §§ 431.444;
431.447.
15. In § 431.444, paragraph (b) is
revised to read as follows:
§ 431.444 Test procedures for the
measurement of energy efficiency.
*
This subpart contains definitions, test
procedures, and energy conservation
requirements for small electric motors,
pursuant to Part A–1 of Title III of the
Energy Policy and Conservation Act, as
amended, 42 U.S.C. 6311–6317. This
subpart does not cover ‘‘electric motors,’’
which are addressed in subpart B of this
part.
VerDate Mar<15>2010
*
*
*
*
*
(b) Testing and Calculations.
Determine the energy efficiency and
losses by using one of the following test
methods:
(1) Single-phase small electric motors:
Either IEEE 114–2001, (incorporated by
reference, see § 431.443), or CAN/CSA
C747, (incorporated by reference, see
§ 431.443);
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Sfmt 4702
(2) Polyphase small electric motors
less than or equal to 1 horsepower (0.75
kW): Either IEEE 112–2004 Test Method
A, (incorporated by reference, see
§ 431.443), or CAN/CSA C747,
(incorporated by reference, see
§ 431.443); or
(3) Polyphase small electric motors
greater than 1 horsepower (0.75 kW):
Either IEEE 112–2004 Test Method,
(incorporated by reference, see
§ 431.443), or CSA C390–10
(incorporated by reference, see
§ 431.443).
16. In § 431.445, paragraph (b)(5) is
added and paragraph (c) is revised to
read as follows:
§ 431.445 Determination of small electric
motor efficiency.
*
*
*
*
*
(b) * * *
(5) Use of a certification program. (i)
A manufacturer may have a certification
program, that DOE has classified as
nationally recognized under § 431.447,
certify the average full load efficiency of
a basic model of small electric motor,
and issue a certificate of conformity for
the small motor.
(ii) For each basic model for which a
certification program is not used as
described in paragraph (b)(5)(i) of this
section, any testing of a motor to
determine its energy efficiency must be
carried out in accordance with
paragraphs (b) and (c) of this section.
(This includes testing of the basic
model, pursuant to paragraph (b)(3)(i) of
this section, to substantiate an AEDM.)
(c) Additional testing requirements
applicable when a certification program
is not used—(1) Selection of basic
models for testing. (i) Basic models must
be selected for testing in accordance
with the following criteria:
E:\FR\FM\05JAP2.SGM
05JAP2
kgrant on DSKGBLS3C1PROD with BILLS
where Xi is the measured full load efficiency
of unit i and n is the number of units
tested, shall satisfy the condition:
where RE is the represented average full load
efficiency.
17. A new § 431.447 is added to read
as follows:
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17:19 Jan 04, 2011
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§ 431.447 Department of Energy
recognition of nationally recognized
certification programs.
(a) Petition. For a certification
program to be classified by the
Department of Energy as being
nationally recognized in the United
States for the purposes of Section 345(c)
of EPCA (‘‘nationally recognized’’), the
organization operating the program
must submit a petition to the
Department requesting such
classification, in accordance with
paragraph (c) of this section and
§ 431.448. The petition must
demonstrate that the program meets the
criteria in paragraph (b) of this section.
(b) Evaluation criteria. For a
certification program to be classified by
the Department as nationally
recognized, it must meet the following
criteria:
(1) It must have satisfactory standards
and procedures for conducting and
administering a certification system,
including periodic follow up activities
to assure that basic models of small
electric motors continue to conform to
the efficiency levels for which they were
certified, and for granting a certificate of
conformity.
(2) It must be independent of small
electric motor manufacturers, importers,
distributors, private labelers or vendors.
It cannot be affiliated with, have
financial ties with, be controlled by, or
be under common control with any such
entity.
(3) It must be qualified to operate a
certification system in a highly
competent manner.
(4) It must be expert in the content
and application of the test procedures
and methodologies in IEEE Standard
112–2004 Test Methods A and B, IEEE
Standard 114–2001, CSA Standard
C390–10, and CAN/CSA Standard
C747–09 (incorporated by reference, see
§ 431.443) or similar procedures and
methodologies for determining the
energy efficiency of small electric
motors. It must have satisfactory criteria
and procedures for the selection and
sampling of electric motors tested for
energy efficiency.
(c) Petition format. Each petition
requesting classification as a nationally
recognized certification program must
contain a narrative statement as to why
the program meets the criteria listed in
paragraph (b) of this section, must be
signed on behalf of the organization
operating the program by an authorized
representative, and must be
accompanied by documentation that
supports the narrative statement. The
following provides additional guidance
as to the specific criteria:
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Fmt 4701
Sfmt 4702
(1) Standards and procedures. A copy
of the standards and procedures for
operating a certification system and for
granting a certificate of conformity
should accompany the petition.
(2) Independent status. The
petitioning organization should identify
and describe any relationship, direct or
indirect, that it or the certification
program has with an electric motor
manufacturer, importer, distributor,
private labeler, vendor, trade association
or other such entity, as well as any other
relationship it believes might appear to
create a conflict of interest for the
certification program in operating a
certification system for compliance by
small electric motors with energy
efficiency standards. It should explain
why it believes such relationship would
not compromise its independence in
operating a certification program.
(3) Qualifications to operate a
certification system. Experience in
operating a certification system should
be discussed and substantiated by
supporting documents. Of particular
relevance would be documentary
evidence that establishes experience in
the application of guidelines contained
in the ISO/IEC Guide 65, General
requirements for bodies operating
product certification systems, ISO/IEC
Guide 27, Guidelines for corrective
action to be taken by a certification
body in the event of either
misapplication of its mark of conformity
to a product, or products which bear the
mark of the certification body being
found to subject persons or property to
risk, and ISO/IEC Guide 28, General
rules for a model third-party
certification system for products, as well
as experience in overseeing compliance
with the guidelines contained in the
ISO/IEC Guide 25, General requirements
for the competence of calibration and
testing laboratories.
(4) Expertise in small electric motor
test procedures. The petition should set
forth the program’s experience with the
test procedures and methodologies in
IEEE Standard 112–2004 Test Methods
A and B, IEEE Standard 114–2001, CSA
Standard C390–10, and CAN/CSA
Standard C747–2009 (incorporated by
reference, see § 431.443) and with
similar procedures and methodologies.
This part of the petition should include
description of prior projects,
qualifications of staff members, and the
like. Of particular relevance would be
documentary evidence that establishes
experience in applying guidelines
contained in the ISO/IEC Guide 25,
General requirements for the
competence of calibration and testing
laboratories, to energy efficiency testing
for small electric motors.
E:\FR\FM\05JAP2.SGM
05JAP2
EP05JA11.001
(A) Two of the basic models must be
among the five basic models that
comply with § 431.446 and have the
highest unit volumes of production by
the manufacturer in the prior year, or
during the prior 12 calendar month
period beginning in 2015, whichever is
later;
(B) The basic models should be of
different horsepowers without
duplication;
(C) The basic models should be of
different frame number series without
duplication; and
(D) Each basic model should be
expected to have the lowest average full
load efficiency among the basic models
with the same rating (‘‘rating’’ as used
here has the same meaning as it has in
the definition of ‘‘basic model’’).
(ii) In any instance where it is
impossible for a manufacturer to select
basic models for testing in accordance
with all of these criteria, the criteria
shall be given priority in the order in
which they are listed. Within the limits
imposed by the criteria, basic models
shall be selected randomly.
(2) Selection of units for testing within
a basic model. For each basic model
selected for testing, a sample of units
shall be selected at random and tested.
The sample shall be comprised of
production units of the basic model, or
units that are representative of such
production units. The sample size shall
be no fewer than five units, except when
fewer than five units of a basic model
would be produced over a reasonable
period of time (approximately 180
days), then each unit shall be tested.
When selecting a basic model for
testing, components of similar design
may be substituted without requiring
additional testing if the represented
measures of energy consumption satisfy
the applicable sampling provision.
(3) Applying results of testing. In a test
of compliance with a represented
average efficiency:
The average full load efficiency of the
sample X, which is defined by
675
EP05JA11.000
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676
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(d) Disposition. The Department will
evaluate the petition in accordance with
§ 431.448, and will determine whether
the applicant meets the criteria in
paragraph (b) of this section for
classification as a nationally recognized
certification program.
18. A new § 431.448 is added to read
as follows:
§ 431.448 Procedures for recognition and
withdrawal of recognition of certification
programs.
kgrant on DSKGBLS3C1PROD with BILLS
(a) Filing of petition. Any petition
submitted to the Department pursuant
to § 431.447(a), shall be entitled
‘‘Petition for Recognition’’ (‘‘Petition’’)
and must be submitted, in triplicate to
the Assistant Secretary for Energy
Efficiency and Renewable Energy, U.S.
Department of Energy, Forrestal
Building, 1000 Independence Avenue,
SW., Washington, DC 20585–0121. In
accordance with the provisions set forth
in 10 CFR 1004.11, any request for
confidential treatment of any
information contained in such a Petition
or in supporting documentation must be
accompanied by a copy of the Petition
or supporting documentation from
which the information claimed to be
confidential has been deleted.
(b) Public notice and solicitation of
comments. DOE shall publish in the
Federal Register the Petition from
which confidential information, as
determined by DOE, has been deleted in
accordance with 10 CFR 1004.11 and
shall solicit comments, data and
information on whether the Petition
should be granted. The Department
shall also make available for inspection
and copying the Petition’s supporting
documentation from which confidential
information, as determined by DOE, has
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17:19 Jan 04, 2011
Jkt 223001
been deleted in accordance with 10 CFR
1004.11. Any person submitting written
comments to DOE with respect to a
Petition shall also send a copy of such
comments to the petitioner.
(c) Responsive statement by the
petitioner. A petitioner may, within 10
working days of receipt of a copy of any
comments submitted in accordance with
paragraph (b) of this section, respond to
such comments in a written statement
submitted to the Assistant Secretary for
Energy Efficiency and Renewable
Energy. A petitioner may address more
than one set of comments in a single
responsive statement.
(d) Public announcement of interim
determination and solicitation of
comments. The Assistant Secretary for
Energy Efficiency and Renewable
Energy shall issue an interim
determination on the Petition as soon as
is practicable following receipt and
review of the Petition and other
applicable documents, including, but
not limited to, comments and responses
to comments. The petitioner shall be
notified in writing of the interim
determination. DOE shall also publish
in the Federal Register the interim
determination and shall solicit
comments, data and information with
respect to that interim determination.
Written comments and responsive
statements may be submitted as
provided in paragraphs (b) and (c) of
this section.
(e) Public announcement of final
determination. The Assistant Secretary
for Energy Efficiency and Renewable
Energy shall as soon as practicable,
following receipt and review of
comments and responsive statements on
the interim determination publish in the
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Fmt 4701
Sfmt 9990
Federal Register a notice of final
determination on the Petition.
(f) Additional information. The
Department may, at any time during the
recognition process, request additional
relevant information or conduct an
investigation concerning the Petition.
The Department’s determination on a
Petition may be based solely on the
Petition and supporting documents, or
may also be based on such additional
information as the Department deems
appropriate.
(g) Withdrawal of recognition—(1)
Withdrawal by the Department. If the
Department believes that a certification
program that has been recognized under
§ 431.447 is failing to meet the criteria
of paragraph (b) of the section under
which it is recognized, the Department
will so advise such entity and request
that it take appropriate corrective
action. The Department will give the
entity an opportunity to respond. If after
receiving such response, or no response,
the Department believes satisfactory
correction has not been made, the
Department will withdraw its
recognition from that entity.
(2) Voluntary withdrawal. A
certification program may withdraw
itself from recognition by the
Department by advising the Department
in writing of such withdrawal. It must
also advise those that use it (for a
certification organization, the
manufacturers) of such withdrawal.
(3) Notice of withdrawal of
recognition. The Department will
publish in the Federal Register a notice
of any withdrawal of recognition that
occurs pursuant to this paragraph (g).
[FR Doc. 2010–33069 Filed 1–4–11; 8:45 am]
BILLING CODE 6450–01–P
E:\FR\FM\05JAP2.SGM
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Agencies
[Federal Register Volume 76, Number 3 (Wednesday, January 5, 2011)]
[Proposed Rules]
[Pages 648-676]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2010-33069]
[[Page 647]]
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Part III
Department of Energy
-----------------------------------------------------------------------
10 CFR Part 431
Energy Conservation Program: Test Procedures for Electric Motors and
Small Electric Motors; Proposed Rule
Federal Register / Vol. 76, No. 3 / Wednesday, January 5, 2011 /
Proposed Rules
[[Page 648]]
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DEPARTMENT OF ENERGY
10 CFR Part 431
[Docket No. EERE-2008-BT-TP-0008]
RIN 1904-AB71
Energy Conservation Program: Test Procedures for Electric Motors
and Small Electric Motors
AGENCY: Office of Energy Efficiency and Renewable Energy, Department of
Energy.
ACTION: Supplemental notice of proposed rulemaking.
-----------------------------------------------------------------------
SUMMARY: This supplemental notice of proposed rulemaking (SNOPR)
proposes to clarify certain terms and language in our regulations for
certain commercial and industrial equipment, as follows: revise the
definitions of certain terms related to electric motors and small
electric motors, clarify the scope of energy conservation standards for
electric motors, update references to several industry and testing
standards for electric motors, incorporate by reference and update
alternative test methods for polyphase and single-phase small electric
motors, and specify the determination of efficiency requirements for
small electric motors. These actions are being proposed to clarify the
scope of regulatory coverage for small electric motors and electric
motors and ensure the accurate and consistent measurement of energy
efficiency. This notice invites comments on U.S. Department of Energy
(DOE) proposals and the issues presented herein, and requests comments,
data, and other information that would enable DOE to promulgate a final
rule.
DATES: DOE will accept comments, data, and information regarding the
SNOPR until February 4, 2011. See section IV, ``Public Participation,''
of this supplemental proposed rule for details.
ADDRESSES: Any comments submitted must identify the SNOPR on Test
Procedures for Electric Motors and provide the docket number EERE-2008-
BT-TP-0008 and/or Regulation Identifier Number (RIN) 1904-AB71.
Comments may be submitted using any of the following methods:
Federal eRulemaking Portal: https://www.regulations.gov.
Follow the instructions for submitting comments.
E-mail: small_electric_motors_tp.rulemaking@ee.doe.gov.
Include the docket number EERE-2008-BT-TP-0008 and/or RIN 1904-AB71 in
the subject line of the message.
Postal Mail: Ms. Brenda Edwards, U.S. Department of
Energy, Building Technologies Program, Mailstop EE-2J, 1000
Independence Avenue, SW., Washington, DC 20585-0121. Please submit one
signed paper original. Due to the potential delays in DOE's receipt and
processing of mail sent through the U.S. Postal Service, DOE encourages
respondents to submit comments electronically to ensure timely receipt.
Hand Delivery/Courier: Ms. Brenda Edwards, U.S. Department
of Energy, Building Technologies Program, 6th Floor, 950 L'Enfant
Plaza, SW., Washington, DC 20024. Telephone: (202) 586-2945. Please
submit one signed paper original.
For detailed instructions on submitting comments and additional
information on the rulemaking process, see section IV, ``Public
Participation,'' of this document.
Docket: For access to the docket to read background documents or
comments received, visit the U.S. Department of Energy, Sixth Floor,
950 L'Enfant Plaza, SW., Washington, DC 20024, (202) 586-2945, between
9 a.m. and 4 p.m., Monday through Friday, except Federal holidays.
Please call Ms. Brenda Edwards at (202) 586-2945 for additional
information about visiting the Resource Room.
FOR FURTHER INFORMATION CONTACT: Mr. James Raba, U.S. Department of
Energy, Office of Energy Efficiency and Renewable Energy, Building
Technologies Program, EE-2J, 1000 Independence Avenue, SW., Washington,
DC 20585-0121. Telephone: (202) 586-8654. E-mail: Jim.Raba@ee.doe.gov.
In the Office of the General Counsel, contact Ms. Ami Grace-Tardy, U.S.
Department of Energy, Office of the General Counsel, GC-71, 1000
Independence Avenue, SW., Washington, DC 20585. Telephone: (202) 586-
5709. E-mail: Ami.Grace-Tardy@hq.doe.gov.
For information about how to submit or review public comments,
contact Ms. Brenda Edwards, U.S. Department of Energy, Office of Energy
Efficiency and Renewable Energy, Building Technologies Program, EE-2J,
1000 Independence Avenue, SW., Washington, DC 20585-0121. Telephone:
(202) 586-2945. E-mail: Brenda.Edwards@ee.doe.gov.
SUPPLEMENTARY INFORMATION:
Table of Contents
I. Introduction
A. Authority
B. Background
1. Electric Motors
2. Small Electric Motors
II. Summary of Supplemental Notice of Proposed Rulemaking
III. Discussion
A. Definition of Electric Motor
B. Definition of General Purpose Electric Motors, Subtypes I and
II
C. Definition of NEMA Design B Motor
D. Fire Pump Motors Definition
E. Fire Pump Motor Coverage
F. Energy Conservation Standards for Electric Motors
G. References to International Electrotechnical Commission,
National Electrical Manufacturers Association, Institute of
Electrical and Electronics Engineers, and Canadian Standards
Association Standards for Electric Motors
H. National Institute of Standards and Technology/National
Voluntary Laboratory Accreditation Program Handbook 150-10 Update
and Checklist
I. Appendix A to Subpart B of Title 10 of the Code of Federal
Regulations Part 431
J. Definition of Small Electric Motor
K. Canadian Standards Association Test Procedures for Small
Electric Motors
L. Small Electric Motor Represented Efficiency Value
M. Validation of the Small Electric Motor Alternative Efficiency
Determination Method
N. Small Electric Motor Nationally Recognized Certification
Program
O. Issues Related to Compliance Certification and Enforcement of
Electric Motors and Small Electric Motors.
IV. Public Participation
A. Submission of Comments
B. Issues on Which the Department of Energy Seeks Comment
1. Definition of Electric Motor
2. Definition of General Purpose Electric Motors, Subtypes I and
II
3. Definition of NEMA Design B Motor
4. Fire Pump Motors Definition
5. Fire Pump Motor Coverage
6. Energy Conservation Standards for Electric Motors
7. References to International Electrotechnical Commission,
National Electrical Manufacturers Association, Institute of
Electrical and Electronics Engineers, and Canadian Standards
Association Standards for Electric Motors
8. National Institute of Standards and Technology/National
Voluntary Laboratory Accreditation Program Handbook 150-10 Update
and Checklist
9. Appendix A to Subpart B of Title 10 of the Code of Federal
Regulations Part 431
10. Canadian Standards Association Test Procedure for Small
Electric Motors
11. Small Electric Motor Represented Efficiency Value
12. Validation of the Small Electric Motor Alternative
Efficiency Determination Method
13. Small Electric Motor Nationally Recognized Certification
Program
14. Issues Related to Compliance Certification and Enforcement
of Electric Motors and Small Electric Motors
V. Procedural Issues and Regulatory Review
A. Review Under Executive Order 12866
B. Review Under the Regulatory Flexibility Act
C. Review Under the Paperwork Reduction Act
[[Page 649]]
D. Review Under the National Environmental Policy Act
E. Review Under Executive Order 13132
F. Review Under Executive Order 12988
G. Review Under the Unfunded Mandates Reform Act of 1995
H. Review Under the Treasury and General Government
Appropriations Act, 1999
I. Review Under Executive Order 12630
J. Review Under the Treasury and General Government
Appropriations Act, 2001
K. Review Under Executive Order 13211
L. Review Under Section 32 of the Federal Energy Administration
Act of 1974
VI. Approval of the Office of the Secretary
I. Introduction
A. Authority
Part A-1 of Title III of the Energy Policy and Conservation Act, as
amended (EPCA), provides the Department of Energy (``DOE'' or, in
context, ``the Department'') with the authority to promulgate energy
conservation standards and related test procedures for certain
commercial and industrial equipment. (42 U.S.C. 6311-6317) This
supplemental notice of proposed rulemaking addresses issues raised in
response to an earlier notice of proposed rulemaking, 73 FR 78220
(December 22, 2008).
B. Background
In the Energy Policy Act of 1992, Public Law 102-486 (October 24,
1992) (EPAct 1992), Congress amended EPCA to establish energy
conservation standards, test procedures, compliance certification, and
labeling requirements for certain electric motors.\1\ In addition,
EPAct 1992 directed the Secretary of Energy to determine whether energy
conservation standards for small electric motors would be
technologically feasible and economically justified, and would result
in significant energy savings.\2\ On October 5, 1999, DOE published in
the Federal Register, a final rule that set forth procedures to
determine the energy efficiency of electric motors. 64 FR 54114. After
determining that energy conservation standards for small electric
motors would be technologically feasible and economically justified,
see 71 FR 38799 (July 10, 2006), DOE initiated a rulemaking to begin
the development of standards for small electric motors.\3\ Related to
these efforts was DOE's publication of a July 7, 2009 final rule
prescribing test procedures for small electric motors. 74 FR 32059.
Today's supplemental notice of proposed rulemaking (SNOPR) proposes
revisions, as summarized below, to the test procedures and definitions
related to electric motors and small electric motors that were not
addressed in previous rulemakings.
---------------------------------------------------------------------------
\1\ EPCA, as amended by EPAct 1992, had previously defined an
``electric motor'' as ``any motor which is a general purpose T-
frame, single-speed, foot-mounting, polyphase squirrel-cage
induction motor of the National Electrical Manufacturers
Association, Design A and B, continuous rated, operating on 230/460
volts and constant 60 Hertz line power as defined in NEMA Standards
Publication MG1-1987.'' (42 U.S.C. 6311(13)(A) (1992)) Through
subsequent amendments to EPCA, Congress removed this definition and
replaced it with language denoting two new subtypes of general
purpose electric motors. (See 42 U.S.C. 6311(13)(A)-(B) (2010))
\2\ EPCA, as amended by EPAct 1992, defines the term ``small
electric motor'' to mean a ``NEMA general purpose alternating
current single-speed induction motor, built in a two-digit frame
number series in accordance with NEMA Standards Publication MG1-
1987.'' (42 U.S.C. 6311(13)(G))
\3\ A single-phase small electric motor is a rotating electrical
machine that operates on single-phase electrical power, which refers
to a single alternating voltage sinusoidal waveform. Similarly, a
polyphase small electric motor is a rotating electrical machine that
operates on three-phase electrical power, which refers to the
sinusoidal waveforms of three supply conductors that are offset from
one another by 120 degrees. Small electric motors are generally used
as components to drive commercial and industrial pumps, fans,
conveyors, and other equipment that require low power (i.e.,
approximately 3 horsepower and below). 73 FR 78220, 78221 n.2
(December 22, 2008)
---------------------------------------------------------------------------
1. Electric Motors
Section 343(a)(5)(A) of EPCA requires that test procedures for
electric motor efficiency shall be the test procedures specified in the
National Electrical Manufacturers Association (NEMA) Standards
Publication MG1-1987 and IEEE Standard 112 Test Method B for electric
motor efficiency, as in effect on the date of enactment of EPAct 1992.
(42 U.S.C. 6314(a)(5)(A)) Section 343(a)(5)(B) of EPCA directs that if
the NEMA and IEEE test procedures are amended, the Secretary of Energy
shall amend the efficiency test procedures for electric motors to
conform to the amended NEMA and IEEE test procedures, unless the
Secretary determines, by rule, that amended procedures are not
reasonably designed to produce results that reflect energy efficiency,
energy use, and estimated operating costs, and would be unduly
burdensome to conduct. (42 U.S.C. 6314(a)(5)(B)) Subsequently, once
newer versions of these industry test procedures became available, DOE
amended its regulations to include more recent versions of these
procedures. MG1-1993 and IEEE Standard 112-1996 were codified at 10 CFR
431.22 (now codified at 10 CFR 431.16 and appendix B to subpart B). In
addition, the equivalent CAN/CSA C390-93, ``Energy Efficiency Test
Methods for Three-Phase Induction Motors'' was added in the final rule
published on October 5, 1999. 64 FR 54114. These changes were made to
ensure that the latest industry practices were incorporated into DOE's
regulations and to incorporate related equivalent procedures.
NEMA Standards Publication MG1 was most recently revised and
published on April 9, 2010, IEEE Standard 112 was most recently amended
in November 2004, and CAN/CSA C390 was most recently amended on March
22, 2010 (as the renamed ``Test methods, marking requirements, and
energy efficiency levels for three-phase induction motors.'') As
directed by section 343(a)(5)(B) of EPCA, DOE proposed in a December
22, 2008, test procedure notice of proposed rulemaking (NOPR) (December
2008 NOPR) to update the test procedures in 10 CFR part 431 by
incorporating by reference the test methods from the most current
versions (at that time) of those industry testing standards. 73 FR
78220. DOE received several comments on its proposed updates as well as
on other issues and is addressing them in today's SNOPR for further
public review.
2. Small Electric Motors
Section 346 of EPCA requires DOE to prescribe test procedures for
those small electric motors for which the Secretary of Energy makes a
positive determination that energy conservation standards would be
technologically feasible and economically justified, and would result
in significant energy savings. (42 U.S.C. 6317(b)(1)) Consistent with
this requirement, DOE announced its intention in the determination
notice to initiate the development of test procedures for certain small
electric motors. 71 FR 38807 (July 10, 2006).
Pursuant to section 346(b)(1) of EPCA, in the December 2008 NOPR,
DOE presented potential test methods for measuring the energy
efficiency of small electric motors that DOE was considering
incorporating into its regulations. 73 FR 78220. DOE proposed to base
its test procedure on IEEE Standard 114-2001, ``Test Procedure for
Single-Phase Induction Motors,'' IEEE Standard 112-2004, ``Test
Procedure for Polyphase Induction Motors and Generators,'' and Canadian
Standards Association (CAN/CSA) C747-94, ``Energy Efficiency Test
Methods for Single- and Three-Phase Small Motors.'' \4\ All of these
testing standards are industry-based test procedures that
[[Page 650]]
are well-known and commonly used by small electric motor manufacturers.
---------------------------------------------------------------------------
\4\ The IEEE Standards addressed in this notice are generally
listed chronologically by their last date of revision and adoption
rather than their sequential number.
---------------------------------------------------------------------------
On July 7, 2009, DOE published a final rule adopting test
procedures for measuring the energy efficiency of small electric
motors. 74 FR 32059. However, there were certain subsidiary issues
raised in the December 2008 NOPR that required additional consideration
before a final decision could be made on how to address them in light
of comments received from interested parties. These issues are
addressed in today's SNOPR.
II. Summary of Supplemental Notice of Proposed Rulemaking
Today's SNOPR addresses and solicits comment on particular issues
concerning definitions and test procedures for electric motors and
small electric motors. DOE prepared this SNOPR to ensure clarity in the
definitions and test procedures for electric motors and small electric
motors and to address public comments received in response to the
December NOPR.
With respect to electric motors, DOE proposes to take four actions.
First, DOE proposes to clarify definitions for the terms ``electric
motor,'' ``fire pump motor,'' ``general purpose electric motor (subtype
I),'' ``general purpose electric motor (subtype II),'' and ``NEMA
Design B.'' In addition, DOE proposes to rename the term ``general
purpose motor'' to be ``general purpose electric motor'' consistent
with terminology used in the regulations. DOE believes that the
proposed revisions to these terms will make the applicable test
procedures contained in 10 CFR part 431 appropriate for this equipment
while addressing comments from interested parties submitted in response
to the December 2008 NOPR. Second, today's notice proposes to clarify
the scope of existing and pending energy conservation standards for
electric motors in 10 CFR 431.25. Third, DOE proposes to update the
references to NIST Handbook 150-10, ``Efficiency of Electric Motors,''
and the associated NIST Handbook 150-10 Checklist, IEC standards
documents, CAN/CSA C390, and NEMA MG1 throughout subpart B of 10 CFR
part 431. Fourth, DOE proposes revisions to appendix A to subpart B, of
10 CFR part 431, to maintain consistency with the Energy Independence
and Security Act (EISA 2007) amendments to the electric motor scope of
coverage, and to address acceptable bounds for shaft dimensions for
covered general purposes electric motors.
With respect to small electric motors, on July 7, 2009, DOE
published a final rule that prescribed test procedures to measure the
energy efficiency of small electric motors (July 2009 final rule). 74
FR 32059. Today's SNOPR addresses three related matters that would
clarify the scope of coverage and alleviate potential undue testing
burdens.
First, DOE proposes to define the represented efficiency value and
average full load efficiency for small electric motors.
Second, DOE proposes to include the following test procedures as
alternative methodologies for measuring the energy efficiency of
polyphase small electric motors: CAN/CSA C747 and CAN/CSA C390. DOE
understands that both test methods are equivalent to IEEE Standard 112
Test Methods A and B, respectively, which were adopted in the July 2009
final rule. DOE is also updating existing references to CAN/CSA C747 to
the latest version of the standard.
Finally, DOE proposes a method to validate an alternative
efficiency determination method (AEDM) for small electric motors,
including the statistical requirements to substantiate the AEDM. While
the AEDM was addressed in the December 2008 NOPR, comments to that
notice indicated that the agency needed to provide additional
clarification regarding how manufacturers should use the sample of
basic models tested when validating their AEDMs. Today's notice
clarifies that issue by proposing an approach based on the AEDM
substantiation requirements for 1-200 horsepower electric motors.
The proposed revisions are summarized in the table below and
addressed in detail in the following section. Note that all citations
to various sections of 10 CFR part 431 throughout this SNOPR preamble
refer to the current version of 10 CFR part 431. The proposed
regulatory text follows the preamble to this notice. DOE seeks comments
from interested parties on each of the proposed revisions.
Table 1--Summary of Changes Proposed in This SNOPR and Affected Sections
of 10 CFR Part 431
------------------------------------------------------------------------
Summary of Proposed
Existing Section in 10 CFR Part 431 Modifications
------------------------------------------------------------------------
Section 431.11 of Subpart B--Purpose Clarifies that subpart
and Scope. B is applicable to ``electric
motors,'' but not ``small
electric motors.''
Section 431.12 of Subpart B-- Revises the
Definitions. definitions of
``accreditation,'' ``definite
purpose motor,'' ``general
purpose electric motor
(subtype I),'' ``general
purpose electric motor
(subtype II),'' and ``nominal
full load efficiency.''
Adds new definitions
for ``electric motor,'' ``fire
pump motor,'' ``general
purpose electric motor,'' and
``NEMA Design B motor.''
Removes definition of
``general purpose motor.''
Section 431.14 of Subpart B-- Sources Removes sources for
for information and guidance. information and guidance from
Section 431.15 and places it
in new Section 431.14.
Section 431.15 of Subpart B--Materials Updates reference to
incorporated by reference. CAN/CSA-C390.
Updates references to
IEC standards.
Updates reference to
IEEE 112.
Updates reference to
NEMA MG1.
Section 431.18 of Subpart B--Testing Updates reference to
Laboratories. NIST Handbook 150-10.
Section 431.19 of Subpart B--Department Updates references to
of Energy recognition of accreditation IEEE 112 and CAN/CSA C390.
bodies.
Section 431.20 of Subpart B--Department Updates references to
of Energy recognition of nationally IEEE 112 and CAN/CSA-C390 for
recognized certification programs. electric motors.
Section 431.25 of Subpart B--Energy Clarifies the scope of
conservation standards and effective efficiency standards in
dates. 431.25(a) through (e).
Inserts kilowatt
equivalent power ratings in
the efficiency standard
tables.
Section 431.31 of Subpart B--Labeling Updates reference to
Requirements. NEMA MG1.
Appendix A to Subpart B--Policy Revised for
Statement for Electric Motors Covered consistency with EISA 2007
Under the Energy Policy and amendments.
Conservation Act.
[[Page 651]]
Includes guidance
regarding special shaft
designs for motors.
Appendix B to Subpart B--Uniform Test Updates references to
Method for Measuring Nominal Full Load NEMA MG1, IEEE 112, and CAN/
Efficiency of Electric Motors. CSA C390.
Section 431.441 of Subpart X--Purpose Clarifies that subpart
and Scope. X is applicable to ``small
electric motors,'' but not
``electric motors.''
Section 431.443 of Subpart X--Materials Updates reference to
incorporated by reference. CAN/CSA-C747.
Adds reference to CSA-
C390.
Updates references to
IEEE 112 and 114.
Section 431.444 of Subpart X--Test Updates reference to
procedures for measurement of energy CAN/CSA-C747.
efficiency.
Adds reference to CAN/
CSA-C390.
Section 431.445 of Subpart X-- Adds additional
Determination of small electric motor guidelines on use of a
efficiency. certification program and
references section 431.447 for
small electric motors.
Defines the
represented efficiency value.
Section 431.447 of Subpart X-- Adds a section on
Department of Energy recognition of nationally recognized
nationally recognized certification certification programs for
programs. small electric motors similar
to section 431.20 for electric
motors.
Section 431.448 of Subpart X-- Adds a section on
Procedures for recognition and procedures for recognition of
withdrawal of recognition of certification programs for
certification programs. small electric motors similar
to section 431.21 for electric
motors.
------------------------------------------------------------------------
III. Discussion
A. Definition of Electric Motor
Before the enactment of EISA 2007, section 340(13)(A) of EPCA, as
amended, defined the term ``electric motor'' as ``any motor which is a
general purpose T-frame, single-speed, foot-mounting, polyphase
squirrel-cage induction motor of the National Electrical Manufacturers
Association, Design A and B, continuous rated, operating on 230/460
volts and constant 60 Hertz line power as defined in NEMA Standards
Publication MG1-1987.'' Section 313(a)(2) of EISA 2007 struck that
definition and established two subtypes: General purpose electric motor
(subtype I) and general purpose electric motor (subtype II). (42 U.S.C.
6311(13)) In addition, section 313(b)(2) of EISA 2007 established
energy conservation standards for four types of motors: General purpose
electric motor (subtype I) with a power rating of 1 to 200 horsepower;
fire pump motors; general purpose electric motor (subtype II) with a
power rating of 1 to 200 horsepower; and NEMA Design B, general purpose
electric motors with a power rating of more than 200 horsepower to 500
horsepower. (42 U.S.C. 6313(b)(2)) All of these standards apply to
covered motors that are manufactured alone or as a component of another
piece of equipment. The term ``electric motor'' (which frequently
appears throughout EPCA, as amended by EISA, and various subparts of 10
CFR part 431) was left undefined. Consequently, DOE expressed concern
that the absence of a definition may cause confusion about which
electric motors are required to comply with mandatory test procedures
and energy conservation standards. 73 FR 78225.
In the December 2008 NOPR, DOE proposed to clarify the EISA
definition of ``electric motor'' to mean any of the following four
types of motors: A general purpose electric motor (subtype I), a fire
pump motor, a general purpose electric motor (subtype II), or a NEMA
Design B general purpose electric motor. 73 FR 78225 and 78235. In
DOE's view, applying the term ``electric motor'' in this manner would
clarify that the test procedures prescribed for electric motors would
equally apply to each of the four types of motors. 73 FR 78225.
Whereas DOE proposed to separate (and define) the covered electric
motors into four distinct and separate types, NEMA asserted that
section 313(a)(2) of EISA 2007 categorized covered electric motors into
two types: General purpose electric motor (subtype I) and general
purpose electric motor (subtype II). Further, NEMA commented that under
the DOE-proposed definition of electric motor, a NEMA Design B general
purpose electric motor and a fire pump motor would be viewed as
separate and apart from general purpose electric motor (subtype I),
when in reality they are considered subsets of general purpose electric
motors (subtype I). (NEMA, No. 12 at p. 7) \5\
---------------------------------------------------------------------------
\5\ Notations of this form appear throughout this document and
identify statements made in written comments or at public hearings
that DOE has received and has included in the docket for this
rulemaking. For example, ``NEMA, No. 12 at p. 7'' refers to a
comment: (1) From the National Electrical Manufacturers Association;
(2) in document number 12 in the docket of this rulemaking; and (3)
appearing on page 7 of the submission.
---------------------------------------------------------------------------
In view of the above and with the term ``electric motor'' as yet
unclear, today's SNOPR proposes to clarify the term ``electric motor''
to mean ``a machine which converts electrical power into rotational
mechanical power.'' Additionally, as discussed below, DOE is proposing
to clarify what constitutes a ``general purpose electric motor (subtype
I)'' by enumerating certain design and performance elements, and what
constitutes a ``general purpose electric motor (subtype II)'' by
explicitly drawing the distinction between a subtype I and subtype II.
B. Definition of General Purpose Electric Motors, Subtypes I and II
EISA 2007 defines a general purpose electric motor (subtype I) as a
motor that meets the definition of ``general purpose'' which was in
effect at the time of enactment of EISA 2007. At that time, 10 CFR part
431 did not contain a definition of ``general purpose,'' although the
regulations did define ``general purpose motor'' as a motor designed in
standard ratings with either:
(1) Standard operating characteristics and standard mechanical
construction for use under usual service conditions, such as those
specified in NEMA Standards Publication MG1-1993, paragraph 14.02,
``Usual Service Conditions,'' and without restriction to a
particular application or type of application; or
(2) Standard operating characteristics or standard mechanical
construction for use under unusual service conditions, such as those
specified in NEMA Standards Publication MG1-1993, paragraph 14.03,
``Unusual Service conditions,'' or for a particular type of
application, and which can be used in most general purpose
applications.
[[Page 652]]
64 FR 54142 (codified at 10 CFR 431.12).
DOE subsequently adopted this definition of ``general purpose
motor'' as the definition of ``general purpose electric motor (subtype
I).'' 74 FR 12058, 12071 (March 23, 2009) (codified at 10 CFR 431.12)
In the December 2008 NOPR, DOE did not propose any changes to the
definition of ``general purpose electric motor (subtype I).''
DOE also did not propose any changes to the definition of ``general
purpose electric motor (subtype II)'' in the December 2008 NOPR because
this term was defined in section 313(a)(2) of EISA 2007 and was
incorporated without modification into 10 CFR 431.12. 74 FR 12071. The
statute defines a subtype II general purpose motor as any motor
incorporating the design elements of a general purpose electric motor
(subtype I) configured as one of the following:
(i) A U-frame motor;
(ii) A Design C motor;
(iii) A close-coupled pump motor;
(iv) A footless motor;
(v) A vertical solid shaft normal thrust motor (as tested in a
horizontal configuration);
(vi) An 8-pole motor (900 rpm); or
(vii) A polyphase motor with voltage of not more than 600 volts
(other than 230 or 460 volts).
(42 U.S.C. 6311(13)(B))
In response to the December 2008 NOPR, NEMA and Baldor commented
that Congress created confusion when it struck the EPAct 1992
definition of electric motor from section 340(13)(A) of EPCA via
section 313(a)(2) of EISA 2007 and subsequently inserted the terms
``general purpose electric motor (subtype I)'' and ``general purpose
electric motor (subtype II)'' under the umbrella heading ``Electric
motor'' without further clarification. According to NEMA and Baldor,
the DOE definition of general purpose electric motor (subtype I) does
not provide the essential elements that would differentiate a general
purpose electric motor (subtype II) from a general purpose electric
motor (subtype I)--the subtype II characteristics described in the
statute are also shared with subtype I motors. Consequently, NEMA
requested that DOE clarify how it intends to distinguish between a
general purpose electric motor (subtype I) and general purpose electric
motor (subtype II), particularly because EISA 2007 prescribes different
efficiency levels for subtype I and subtype II motors. Further, Baldor
suggested that DOE restore the original [EPAct 1992] definition of
electric motor, which was struck by the EISA 2007 amendment to EPCA,
and from that [EPAct 1992] definition derive clear definitions to
differentiate general purpose electric motor (subtype I) and (subtype
II). (NEMA, No. 12 at p. 11; Baldor, Public Meeting Transcript, No. 8
at 116-119)
In addition, NEMA commented that section 313(a)(2) of EISA 2007
defines a general purpose electric motor (subtype II) as one that
incorporates the design elements of a subtype I general purpose
electric motor and that is ``configured as 1 of several distinct
configurations, such as ``Design C'' or ``U-Frame'' construction.
(codified at 42 U.S.C. 6311(13)(A)-(B)). NEMA asked DOE to clarify how
it would interpret the clause ``configured as 1 of'' in EISA 2007's
definition of general purpose electric motor (subtype II). Otherwise,
according to NEMA, it is possible that a general purpose motor could be
configured in a manner that uses combinations of the various
configurations specified by EISA 2007, that is, a Design C motor could
be constructed in a U-frame. (NEMA, No. 12 at p. 11)
In view of the above, DOE proposes first to clarify the definition
of ``electric motor'' by describing what an electric motor is and what
it does, rather than listing categories of covered electric motors.
Second, DOE proposes to clarify the definition of ``general purpose
electric motor (subtype I)'' by specifying certain design and
performance elements. Third, DOE proposes to clarify the relationship
between a general purpose electric motor subtype I and a general
purpose electric motor subtype II.
NEMA commented that the definition of ``general purpose electric
motor (subtype I)'' in the December 2008 NOPR is confusing because the
only identifying characteristic is that the motor is ``constructed for
use in general purpose applications or can be used in most general
purpose applications.'' Further, NEMA asserted that design
characteristics (such as T-frame, single speed, foot-mounting,
polyphase, squirrel-cage induction motor, Design A and B, continuous
rated, operating on 230/460 volts or constant 60 Hertz line power,
etc.), which were essential elements under the EPAct 1992 definition of
``electric motor,'' are not included in the EISA 2007 definition. In
addition, NEMA commented that when [in 1999] DOE originally codified
regulations for electric motors into 10 CFR part 431, it determined
that motors designed in accordance with IEC standards, and which could
be used in the same general purpose applications as NEMA motors, be
included as covered equipment. 61 FR 60442-43, 60449-50 (November 27,
1996) and 64 FR 54131. Whereas the definition for ``general purpose
electric motor (subtype I),'' proposed in the December 2008 NOPR,
failed to include IEC motors of similar design and use, NEMA requested
that DOE explicitly include equivalent IEC motors as covered equipment.
(NEMA, No. 12 at pp. 9 and 11)
In view of the above comments, DOE is proposing to clarify what
constitutes a ``general purpose electric motor (subtype I)'' by
referencing the enumerated design and performance elements under the
definition of ``electric motor,'' set forth in EPCA, as amended by
EPAct 1992 and codified in 10 CFR 431.2 (January 1, 2000). DOE would
also include references to IEC standards to clarify that IEC-equivalent
electric motors are subject to energy conservation standards. DOE
requests comment on the following proposed definition for ``general
purpose electric motor (subtype I)'':
General purpose electric motor (subtype I) means a general purpose
electric motor that:
(1) Is a single-speed induction motor (MG1);
(2) Is rated for continuous duty (MG1) operation or for duty type
S1 (IEC);
(3) Contains a squirrel-cage (MG1) or cage (IEC) rotor;
(4) Has foot-mounting that may include foot-mounting with flanges
or detachable feet;
(5) Is built in accordance with NEMA T-frame dimensions (MG1) or
their IEC metric equivalents (IEC);
(6) Has performance in accordance with NEMA Design A (MG1) or B
characteristics or equivalent designs such as IEC Design N (IEC);
(7) Operates on polyphase alternating current 60-hertz sinusoidal
power, and:
(i) Is rated 230 or 460 volts (or both) including motors rated at
multiple voltages that include 230 or 460 volts (or both), or
(ii) Can be operated on 230 or 460 volts (or both); and
(8) Includes, but is not limited to, explosion-proof construction.
Terms in this definition followed by the parenthetical ``MG1'' must
be construed with reference to provisions in NEMA Standards Publication
MG1-2009 and elements followed by the parenthetical ``IEC'' must be
construed with reference to the IEC Standards. 10 CFR part 431, subpart
B applies to general purpose electric motors (subtype I) even if the
NEMA or IEC-equivalent frame size or design element has been
discontinued or is discontinued in the future.
To be consistent with the proposed definition of ``electric motor''
and corresponding use of the term ``general
[[Page 653]]
purpose electric motor'' in the definition of ``general purpose
electric motor (subtype I),'' DOE proposes to amend the definition of
``general purpose motor'' in 10 CFR 431.12 by adding the word
``electric'' in front of the word ``motor'' to clarify that a general
purpose motor is a type of electric motor. Furthermore, DOE proposes to
update references to NEMA MG1, from NEMA MG1-1993 to NEMA MG1-2009 in
this definition.
DOE distinguishes between a general purpose electric motor subtype
I and subtype II based on whether the motor is configured to have one
or more of the design or performance elements listed in the definition
of general purpose electric motor (subtype II) at 42 U.S.C.
6311(13)(B). For example, a subtype I motor could be built in
accordance with NEMA T-frame dimensions and could have the performance
characteristics of a NEMA Design A motor. In contrast, a motor built
with all of the same design elements as the above mentioned motor but
with the performance characteristics of a NEMA Design C motor would be
a subtype II motor. To clarify this interpretation of the statutory
definition of ``general purpose electric motor (subtype I),'' DOE
proposes to modify the introductory text of the definition to read,
``means any general purpose electric motor that incorporates design
elements of a general purpose electric motor (subtype I) but, unlike a
general purpose electric motor (subtype I), is configured in one or
more of the following ways.'' For clarification, DOE is also proposing
to add references to MG1 and IEC standards in the definition of
``general purpose electric motor (subtype II)'' to clarify the terms
``U-frame,'' ``NEMA Design C,'' and ``vertical solid shaft normal
thrust motor.''
Finally, DOE has received inquiries regarding whether motors
designed in accordance with IEC standards are covered motors under
EPCA, as amended by EISA, if there is no longer a NEMA MG1-equivalent
design standard. Specifically, manufacturers are requesting guidance as
to whether IEC 100 millimeter frame motors are covered motors under
EPCA, as amended by EISA 2007, because the equivalent NEMA 160 frame
size was discontinued as a standard NEMA frame. Before EISA 2007 was
enacted, DOE addressed this question in the 1996 electric motors test
procedure NOPR. 61 FR 60440, 60443 (November 27, 1996). At that time,
DOE considered whether the proposed scenario was covered under the
then-current definition of ``electric motor.'' \6\ The Department
tentatively decided that the IEC 100 millimeter frame motor was not
covered by EPCA because the ``electric motor'' definition required the
motor to be a T-frame motor as defined in NEMA MG1-1987, but the NEMA
T-frame motor that was equivalent to an IEC 100 millimeter frame motor
had been discontinued.
---------------------------------------------------------------------------
\6\ Section 340(13)(A) of EPCA, as amended, defined the term
``electric motor'' as ``any motor which is a general purpose T-
frame, single-speed, foot-mounting, polyphase squirrel-cage
induction motor of the National Electrical Manufacturers
Association, Design A and B, continuous rated, operating on 230/460
volts and constant 60 Hertz line power as defined in NEMA Standards
Publication MG1-1987.''
---------------------------------------------------------------------------
DOE has reassessed this previous preliminary determination in light
of the EISA 2007 amendment that struck the definition of ``electric
motor'' relied upon in the above analysis, and today's proposal to
include references to IEC standards to clarify that IEC-equivalent
electric motors are subject to energy conservation standards. Upon
reconsideration of the issue, DOE proposes that IEC 100 millimeter
frame motors, and other electric motors built to IEC standards, that
otherwise meet the proposed definition of ``general purpose electric
motor (subtype I)'' are covered motors under EPCA, even though the
NEMA-equivalent frame size has been discontinued.
C. Definition of NEMA Design B Motor
In the December 2008 NOPR, DOE proposed to adopt a definition for
the term ``NEMA Design B, general purpose electric motor.'' 73 FR
78235. This definition was based on the definition of general purpose
electric motor in paragraph 1.19.1.2, ``Design B,'' of NEMA MG1-2006
Revision 1, with three changes. First the proposed definition removed
the reference to 50 hertz and corresponding performance characteristics
because the EISA 2007-prescribed efficiency standards for ``NEMA Design
B, general purpose electric motors'' at 42 U.S.C. 6313(b)(2)(D) cover
only 60-hertz motors. (See NEMA MG-1 (2006) Table 12-11) Second, it
limited the maximum rated slip at rated load to less than 5 percent for
motors with fewer than 10 poles, because the EISA 2007-prescribed
energy conservation standards only cover 2-, 4-, 6-, and 8-pole motors
and, according to the footnote to MG1-2006 paragraph 1.19.1.2, motors
with 10 or more poles are permitted to have slip slightly greater than
5 percent. Third, it corrected the referenced 60-hertz locked-rotor
current paragraph from 12.35.3 to 12.35.1, because there is no
paragraph12.35.3 in MG1-2006 and the table under paragraph 12.35.1
contains the maximum currents associated with a locked rotor.
Several interested parties expressed concern over DOE's proposed
definition for a NEMA Design B, general purpose electric motor. NEMA
and Baldor urged DOE not to change the NEMA MG1 definition of Design B
where it refers to MG1-12.35.[2] for 50 hertz, stating that the
industry definition has existed for many years and should be
maintained, and that EISA 2007 does not explicitly limit coverage to 60
hertz. (Baldor, Public Meeting Transcript, No. 8 at p. 159, NEMA, No.
12 at p. 10) NEMA also noted that Table 12-11 of NEMA MG1 (the
applicable efficiency standards for NEMA Design B, general purpose
electric motors) applies both to 60-hertz and 50-hertz rated motors. In
sum, NEMA requested that DOE incorporate the definition of NEMA Design
B, general purpose electric motor from NEMA MG1-2006 in its entirety
and refer to paragraph 1.19.1.2 of NEMA MG1-2006. Notwithstanding this
request, NEMA asserts that it is not condoning the inclusion of
efficiency standards for 50-hertz motors in 10 CFR part 431. NEMA also
commented that even though NEMA Design B motors are a subset of general
purpose electric motor (subtype I), if DOE deems it necessary, NEMA
would support adding a separate definition for NEMA Design B general
purpose electric motor in Sec. 431.12, as long as it was clearly
classified as a general purpose electric motor (subtype I) with some
specific characteristics. (NEMA, No. 12 at p. 10)
In addition, the Northwest Energy Efficiency Alliance (NEEA) agreed
that it could see no benefit to making changes to an industry-wide and
well-accepted definition for a NEMA Design B general purpose motor that
includes 50-hertz motors and energy efficiency levels for 8-pole
motors. NEEA recommended that DOE adopt the NEMA MG1 1.19.1.2
definition without amending it. (NEEA, No. 10 at pp. 2-3)
In response, due to the NEMA MG1 technical error in referencing
section 12.35.3 for 60 Hz motors, DOE cannot simply adopt or reference
the NEMA MG1 1.19.1.2 definition for Design B without any amendments,
as suggested by NEMA and NEEA. Furthermore, it is common and within
DOE's authority to adopt a long-standing industry definition and adapt
the definition to make it more precise for regulatory purposes.
Therefore, DOE intends to adopt a definition of NEMA Design B motor
that includes corrections to the reference to section 12.35.1 of MG1.
In addition, for consistency with the footnote to the definition in
NEMA MG1-2009, DOE intends to maintain the limitation that the maximum
rated slip at rated load to
[[Page 654]]
less than 5 percent for only motors with fewer than 10 poles. DOE
agrees with commenters that there is limited benefit to constraining
the definition of NEMA Design B to only 60-hertz motors. Though DOE's
proposed definitions of general purpose electric motor (subtype I) and
(subtype II) limit those regulations to 60-hertz motors, DOE could
consider expanding energy conservation standards to 50-hertz motors in
the future. Including provisions for 50-hertz motors would maintain
consistency with the industry definition and preserve DOE's flexibility
to regulate electric motors covered under EPCA. In addition, DOE
believes that it is inaccurate and inconsistent with industry practice
to narrowly categorize NEMA Design B motors as only a subset of general
purpose electric motor (subtype I). It is DOE's understanding that NEMA
Design B motors can also fall under the category of general purpose
electric motor (subtype II) (e.g., a footless NEMA Design B motor), or
other type of electric motor.
For all of these reasons, DOE proposes to adopt a broad definition
of a NEMA Design B motor similar to that which was proposed for ``NEMA
Design B, general purpose electric motor'' in the December 2008 NOPR
with three revisions. First, DOE proposes to include provisions
regarding 50 hertz motors. Second, DOE intends to modify the proposal
to update the reference to ``NEMA MG1-2006'' to ``NEMA MG1-2009.''
Third, DOE proposes to eliminate any reference to NEMA Design B motors
necessarily being general purpose electric motors.
D. Fire Pump Motors Definition
EPCA section 342(b), as amended by section 313(b)(1)(B) of EISA
2007 (Pub. L. 110-140), prescribes energy efficiency standards for fire
pump motors, which were subsequently codified at 10 CFR 431.25(d). 74
FR 12072. However, section 340(13) of EPCA, as amended by EISA 2007,
does not define the term ``fire pump motor.'' DOE proposed a definition
for fire pump motors in its December 2008 NOPR to mean ``a Design B
polyphase motor, as defined in NEMA MG1-2006, rated 500 horsepower (373
kW) or less, 600 volts or less, and that is intended for use in
accordance with the National Fire Protection Association (NFPA)
Standard 20-2007, `Standard for the Installation of Stationary Pumps
for Fire Protection.' '' 73 FR 78235. In the NOPR, DOE based the
definition primarily on the scope of the Underwriters Laboratories (UL)
Standard 1004A-2001, ``Fire Pump Motors,'' and NFPA Standard 20-2007.
Further, DOE proposed to make two modifications to the definition by
inserting a publication date for the cited NFPA standard and correcting
the title of NFPA Standard 20.
In response to the NOPR, NEMA raised concerns that fire pump motors
should not be required to meet any efficiency standards because they
are expected to operate on an emergency basis for a relatively short
time with virtually no opportunity to save a significant amount of
energy. Further, NEMA asserted that motors identified as ``fire pump
motors'' are recognized by the industry as both EPAct 1992 electric
motors or EISA 2007 general purpose electric motors (subtype I) and,
therefore, should not be listed as a separate motor type under the
electric motor definition as proposed in the December 2008 NOPR.
Notwithstanding this argument, NEMA supports DOE adding the definition
of ``fire pump motor'' to 10 CFR 431.12, provided that it is
characterized as being a ``general purpose electric motor (subtype I)''
with some specific characteristics. (NEMA, No. 12 at pp. 8-9)
Additionally, NEMA noted that the UL Standard 1004A-2001, ``Fire Pump
Motors,'' has been replaced by UL Standard 1004-5 (2008), and that DOE
should reference the newest standard if it is necessary to define a
fire pump motor. (NEMA, No. 12 at pp. 8-9)
Similarly, other attendees at the January 29, 2009, public meeting
questioned the proposed definition and scope of coverage for fire pump
motors. (Baldor, Public Meeting Transcript, No. 8 at pp. 112-113, 116-
119, 133-136)
DOE examined UL Standard 1004-5 (2008), including paragraph 1.2,
which reads as follows: ``Standard covers Design B polyphase motors, as
defined in NEMA MG 1, Motors and Generators, rated 500 horsepower (373
kW) or less, 600 volts or less, that are intended for use in accordance
with NFPA 20, the Standard for the Installation of Centrifugal Fire
Pumps.'' DOE then compared UL Standard 1004-5 (2008) with the
comparable text in UL Standard 1004A-2001, which contains virtually
identical language and concludes that the documents share the same
scope of coverage. In today's SNOPR, DOE proposes to further clarify
that a fire pump motor is an electric motor that is required to meet
certain safety and performance requirements set forth by NFPA Standard
20-2010, section 9.5, and UL Standard 1004-5 (2008).
However, similar to DOE's above proposal to adopt a broad
definition for a NEMA Design B motor, DOE does not agree that fire pump
motors are necessarily a subset of general purpose electric motors
(subtype I) or general purpose electric motors (as defined in this
SNOPR). It is DOE's understanding that all fire pump motors,
irrespective of whether they are considered general purpose or meet the
design constraints of general purpose electric motor (subtype I), would
be subject to energy conservation standards. For all of these reasons,
in today's SNOPR DOE proposes to define a fire pump motor as an
electric motor that is required to meet the performance and
construction requirements set forth by NFPA Standard 20-2010, section
9.5, and UL Standard 1004-5 (2008).
E. Fire Pump Motor Coverage
Section 313(b)(1)(B) of EISA 2007 amends EPCA section 342(b), to
prescribe energy conservation standards for fire pump motors by
referring to NEMA MG 1-2006 Table 12-11. That provision reads as
follows:
(B) FIRE PUMP MOTORS--Each fire pump motor manufactured (alone or
as a component of another piece of equipment) after the 3-year period
beginning on the date of enactment of the Energy Independence and
Security Act of 2007 shall have nominal full load efficiency that is
not less than as defined in NEMA MG-1 (2006) Table 12-11.
(42 U.S.C. 6313(b)(2)(B))
On March 23, 2009, DOE published a technical amendment to 10 CFR
part 431 to adopt the energy conservation standards for fire pump
motors prescribed by EISA 2007. 74 FR 12058, 12072. The technical
amendment codified the energy conservation standards for fire pump
motors, contained in Table 12-11 of NEMA Standards Publication MG1-2006
(and Revision 1 to MG1-2006) which contains energy efficiency values
from 1 through 500 horsepower and covers 2-pole, 4-pole, 6-pole, and 8-
pole, open and enclosed fire pump motors. 74 FR 12061, 12072.
During the January 29, 2009, public meeting there appeared to be
some confusion over whether the covered range of horsepowers for fire
pump motors is 1-200 horsepower or 1-500 horsepower. (GE, Public
Meeting Transcript, No. 8 at p. 147; Navigant Consulting, Public
Meeting Transcript, No. 8 at pp. 147-148; WEG, Public Meeting
Transcript, No. 8 at pp. 148-149; NEMA, No. 12 at pp. 8-9; NEEA, No. 10
at p. 2). Further, Baldor alluded to an excerpt of the language under
EPCA section 342(b), as amended by section 313(b)(1)(B) of EISA 2007,
which provides ``GENERAL PURPOSE
[[Page 655]]
ELECTRIC MOTORS (SUBTYPE I).--Except as provided in subparagraph (B),
each general purpose electric motor (subtype I) with a power rating of
1 horsepower or greater, but not greater than 200 horsepower.'' (42
U.S.C. 6313(b)(2)(A)) Baldor opined that whether a fire pump motor
covered under 42 U.S.C. 6313(b)(2)(B) was limited to the same 1-200
horsepower range as a general purpose electric motor (subtype I) was a
matter of statutory interpretation. (Baldor, Public Meeting Transcript,
No. 8 at pp. 112-113,145, 149-50).
DOE understands that EISA 2007 section 313(b)(1)(A) sets energy
conservation standards for general purpose electric motors (subtype I)
with a rating of 1 through 200 horsepower and clearly excepts fire pump
motors from this subsection. (42 U.S.C. 6313(b)(2)(A)) EISA 2007
section 313(b)(1)(B), which prescribes energy conservation standards
for fire pump motors, does not, however, explicitly limit the standard
based on a motor's horsepower rating. (42 U.S.C. 6313(b)(2)(B))
Instead, fire pump motor manufacturers are required to meet the
requirements of NEMA Standard MG1-2006 Table 12-11, which covers 1
through 500 horsepower motors. (42 U.S.C. 6313(b)(2)(B)) Consequently,
DOE continues to believe that energy conservation standards DOE
promulgated in its March 23, 2009, technical amendment are the logical
result of provisions set forth in EISA section 313(b)(1)(B) and cannot
be construed as being a subset of subsection EISA section 313(b)(1)(A)
or subject to any constraints contained in subparagraph (A), including
horsepower rating constraints. DOE, therefore, proposes in today's
SNOPR that fire pump motor energy conservation standards apply to fire
pump motors rated 1 through 500 horsepower.
F. Energy Conservation Standards for Electric Motors
In addition to the above comments submitted about the definitions
for ``electric motor,'' ``general purpose electric motor (subtype I),''
``general purpose electric motor (subtype II),'' ``NEMA Design B
motor,'' and ``fire pump motor,'' commenters also submitted comments
(shown below) requesting clarification of the tables of electric motor
efficiency standards in 10 CFR 431.25.
DOE's current regulations require manufacturers of ``electric
motors'' to comply with the energy efficiency levels in 10 CFR
431.25(a), which were prescribed by EPAct in 1992, but do not specify a
sunset date. Section 313(b) of EISA 2007 amended EPCA to prescribe
energy conservation standards for general purpose electric motors
(subtype I and subtype II), with a compliance date of December 19,
2010. (42 U.S.C. 6313(b)(2)) These standards, and the compliance date,
were subsequently codified at 10 CFR 431.25(c) and (e) respectively.
Because EPAct does not specify an apparent terminus for the 1992
efficiency levels, NEMA argued that this was potentially confusing for
manufacturers to decide which provisions apply--the EPAct 1992 levels
or the EISA 2007 levels. Consequently, NEMA requested guidance on the
proper energy conservation standards for general purpose electric
motors (subtype I). (NEMA, No. 12 at p. 9) To address this issue, DOE
proposes to delete 10 CFR 431.25(a) to clarify that the standards in
this section no longer apply.
In view of the above statutory history and relationship of EPCA to
EPAct 1992 and to EISA 2007, DOE believes that the electric motor
standards prescribed by EPAct 1992 apply only to general purpose
electric motors (subtype I). DOE proposes that electric motors covered
under EPAct 1992 (general purpose electric motor (subtype I)), which
are manufactured or imported prior to December 19, 2010, were subject
to the EPAct 1992 energy conservation standards codified at 10 CFR
431.25(a). Further, DOE proposes that a general purpose electric motor
(subtype I) that is manufactured or imported on or after December 19,
2010, is subject to the EISA 2007 energy conservation standards that
are codified at 10 CFR 431.25(c).
In addition, in the December 2008 NOPR, DOE did not explicitly
state that a NEMA Design B general purpose electric motors that
otherwise meets the definition of a general purpose electric motors
(subtype I) is subject to the EISA 2007 energy conservation standards
that are codified at 10 CFR 431.25(c) NEMA expressed concern in
responding to the December 2008 NOPR that given the proposed
definitions and structure of 10 CFR 431.25, NEMA Design B general
purpose electric motors rated 1 horsepower or greater, but not greater
than 200 horsepower, would appear to remain at the levels established
by EPAct 1992 (codified at 10 CFR 431.25(a)).
To clarify the scope of energy conservation standards for NEMA
Design B motors from 1 through 200 horsepower, DOE proposes two
modifications of 10 CFR 431.25. First, because general purpose electric
motors (subtype I) include certain NEMA Design B motors, DOE proposes
to specify that NEMA Design B motors, rated 1 through 200 horsepower,
that are also general purpose electric motors (subtype I), are subject
to energy conservations standards in 10 CFR 431.25(c). Second, and
similarly, as general purpose electric motors (subtype II) include
certain NEMA Design B motors (e.g., footless motors), DOE proposes to
specify that NEMA Design B motors, rated 1 through 200 horsepower, that
are also general purpose electric motors (subtype II), are subject to
energy conservation standards in 10 CFR 431.25(e).
EISA 2007 also established energy conservations standards for
``NEMA Design B, general purpose electric motors'' rated greater than
200 horsepower but less than or equal to 500 horsepower, which were
later codified into the current version of 10 CFR 431.25(f). NEMA
asserts that the motor industry recognizes a ``NEMA Design B, general
purpose electric motor'' as a specific group of motors that fit the
definition of either ``electric motor'' from EPAct 1992 or ``general
purpose electric motor (subtype I)'' from EISA 2007.
DOE notes that EISA 2007 did not define ``NEMA Design B, general
purpose electric motor,'' ``NEMA Design B motor,'' or ``general purpose
electric motor.'' In the absence of any statutory definition, DOE views
the regulatory definition of ``general purpose motor'' that was in
place on EISA2007's enactment date as the proper definition for
``general purpose electric motor'' as used in the term ``NEMA Design B,
general purpose electric motor.'' The ``general purpose motor''
definition in place at the time of EISA's enactment is the same as the
``general purpose electric motor'' definition proposed today, with
minor differences for standards updates. DOE proposes that this
definition, read in conjunction with the definition of ``NEMA Design
B'' proposed in today's SNOPR, delineates the motors regulated under 10
CFR 431.25(f). DOE realizes that this interpretation could potentially
include NEMA Design B motors that are general purpose electric motors
that do not meet the proposed definition of ``general purpose electric
motor (subtype I)'' or ``general purpose electric motor (subtype II).''
It is DOE's understanding, however, that there are few, if any, NEMA
Design B motors that would be neither a subtype I or subtype II general
purpose electric motor. DOE requests comment on this specific issue.
Based on these comments and any additional information collected, DOE
may revise this proposed approach.
NEMA also noted that the energy efficiency standards tables
contained in 10 CFR 431.25(c)-(f) list motor ratings
[[Page 656]]
in horsepower but not equivalent kilowatts. NEMA requested that DOE
include kilowatt power ratings in the newly codified tables that
promulgate the EISA 2007 efficiency standards. (NEMA, No. 12 at p. 9)
Without this change, NEMA raised concerns that metric-rated motors
would not be covered. To ensure that the tables under 10 CFR 431.25(c)-
(f) apply to metric-rated, kilowatt-equivalent motors, DOE proposes to
amend the tables to provide an equivalent kilowatt rating for each
horsepower. Although the EISA 2007 definition for general purpose
electric motor (subtype I and subtype II) does not specifically mention
motors rated in kilowatts, as motors are rated under (IEC) standards,
DOE believes that the statute covers IEC motors that are identical or
equivalent to motors included in the statutory definition. DOE
understands that IEC motors generally can perform the identical
functions of EISA-covered electric motors. Comparable motors of both
types provide virtually identical amounts of rotational mechanical
power, and generally can operate or provide power for the same pieces
of machinery or equipment. A given industrial central air conditioner,
for example, could operate with either an IEC or NEMA motor with little
or no effect on performance. Providing equivalent kilowatt/horsepower
ratings would be consistent with the EPAct 1992 levels that are
codified at 10 CFR 431.25(a), and would clarify the applicability of
these standards levels.
Finally, DOE proposes to clarify in 10 CFR 431.11 that the electric
motors covered under subpart B are not small electric motors. DOE
believes that this clarification is necessary because electric motors
(covered under 10 CFR part 431, subpart B) and small electric motors
(covered under 10 CFR part 431, subpart X) are separate and unique
covered equipment with particular regulatory requirements.
G. References to International Electrotechnical Commission, National
Electrical Manufacturers Association, Institute of Electrical and
Electronics Engineers, and Canadian Standards Association Standards for
Electric Motors
After EISA 2007 struck and replaced the definition of electric
motor under 42 U.S.C. 6311(13), DOE subsequently proposed in the
December 2008 NOPR to remove the corresponding test standards
incorporated by reference under 10 CFR 431.15. These test standards
helped clarify critical elements in the definition of electric motor
under 10 CFR 431.12. 73 FR 78227. The standards incorporated by
reference included IEC Standards 60034-1 (1996), 60050-411 (1996),
60072-1 (1991), and 60034-12 (1980).
NEMA c