Revision to Transmission Vegetation Management Reliability Standard; Notice Inviting Comments on Report, 25164 [2012-10218]

Download as PDF 25164 Federal Register / Vol. 77, No. 82 / Friday, April 27, 2012 / Notices (202) 502–8659. Although the Commission strongly encourages electronic filing, documents may also be paper-filed. To paper-file, mail an original and seven copies to: Kimberly D. Bose, Secretary, Federal Energy Regulatory Commission, 888 First Street NE., Washington, DC 20426. More information about this project, including a copy of the application, can be viewed or printed on the ‘‘eLibrary’’ link of Commission’s Web site at https:// www.ferc.gov/docs-filing/elibrary.asp. Enter the docket number (P–14363–000) in the docket number field to access the document. For assistance, contact FERC Online Support. Dated: April 23, 2012. Kimberly D. Bose, Secretary. [FR Doc. 2012–10220 Filed 4–26–12; 8:45 am] BILLING CODE 6717–01–P DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. RM12–4–000] Revision to Transmission Vegetation Management Reliability Standard; Notice Inviting Comments on Report mstockstill on DSK4VPTVN1PROD with NOTICES The Commission is posting and inviting comment upon a report prepared by the Pacific Northwest National Laboratory (PNNL) on ‘‘Applicability of the ‘Gallet Equation’ to the Vegetation Clearances of NERC Reliability Standard FAC–003–2’’ (PNNL Report). The Report was commissioned by the Commission’s Office of Electric Reliability, for the purpose of obtaining an independent analysis of certain technical questions raised by the Minimum Vegetation Clearance Distances as proposed in the North American Electric Reliability Corporation’s Reliability Standard FAC– 003–2 (Transmission Vegetation Management). Specifically, PNNL was commissioned to prepare a report addressing the following: The overall scope of this project shall include analysis of the mathematics and documentation of the technical justification behind the application of the Gallet equation and the assumptions used in the technical reference paper [Exh. A of NERC’s filing]. To put the analysis into perspective, are the assumptions made in the development of the Gallet Equation and their application in NERC-approved Reliability Standard FAC– 003–2 reasonable to address the minimum distance requirements needed to avoid sustained vegetation-related outages? What variations in Gallet distance may occur when VerDate Mar<15>2010 17:44 Apr 26, 2012 Jkt 226001 comparing the original testing (use of switching impulses and corona free electrodes) against the variety of impulses a line may be subject to and the concentrations of coronal effects when using vegetation instead of corona-free electrodes? Do the equations adequately address the limiting conditions (i.e., the expected extremes in prevailing ambient conditions including temperatures, humidity, conductor position, amplification of any coronal effects and wind speed) that are important to the insulation performance of a line to prevent flashover to nearby vegetation during real-time operating conditions? The limiting conditions will be identified, outlined, and applied in the analysis. This analysis shall also include a discussion of the appropriateness of using one clearance for all lines with the same operating voltage as opposed to linking the clearance to ‘‘as built’’ and design conditions. Finally, the analysis shall identify if the proposed clearance will provide the minimum clearance needed to avoid a flashover with regard to vegetation. (Footnotes omitted.) The PNNL Report will be posted on the Commission’s Web site at https:// www.ferc.gov. Comments on the PNNL Report should be filed with the Commission within 30 days of the issuance of this Notice. The Commission encourages electronic submission of comments in lieu of paper using the ‘‘eFiling’’ link at https://www.ferc.gov. Persons unable to file electronically should submit an original and 14 copies of the comment to the Federal Energy Regulatory Commission, 888 First Street NE., Washington, DC 20426. All filings in this docket are accessible on-line at https:// www.ferc.gov, using the ‘‘eLibrary’’ link and will be available for review in the Commission’s Public Reference Room in Washington, DC. There is an ‘‘eSubscription’’ link on the Web site that enables subscribers to receive email notification when a document is added to a subscribed docket. For assistance with any FERC Online service, please email FERCOnlineSupport@ferc.gov, or call (866) 208–3676 (toll free). For TTY, call (202) 502–8659. Questions regarding this Notice should be directed to: David O’Connor, Office of Electric Reliability, Federal Energy Regulatory Commission, 888 First Street NE., Washington, DC 20426, 202–502–6695, David.OConnor@ferc. gov. Dated: April 23, 2012. Kimberly D. Bose, Secretary. [FR Doc. 2012–10218 Filed 4–26–12; 8:45 am] BILLING CODE 6717–01–P PO 00000 Frm 00044 Fmt 4703 Sfmt 4703 ENVIRONMENTAL PROTECTION AGENCY [EPA–R10–OAR–2010–1914; FRL–9664–7] Adequacy Status of the Eagle River, Alaska Particulate Matter Limited Maintenance Plan for Transportation Conformity Purposes Environmental Protection Agency (EPA). ACTION: Notice of adequacy determination. AGENCY: In this action, EPA is notifying the public of its finding that the Eagle River, Alaska, Particulate Matter (PM10) Limited Maintenance Plan, submitted by the State of Alaska on September 20, 2011, is adequate for conformity purposes. EPA made this finding pursuant to the adequacy process established at 40 CFR 93.118(f)(1). As a result of our adequacy finding, conformity requirements will be reduced. DATES: This finding is effective May 14, 2012. FOR FURTHER INFORMATION CONTACT: The finding will be available at EPA’s conformity Web site: https:// www.epa.gov/otaq/stateresources/ transconf/adequacy.htm. You may also contact Wayne Elson, U.S. EPA, Region 10 (OAWT–107), 1200 Sixth Ave, Suite 900, Seattle WA 98101; (206) 553–1463 or elson.wayne@epa.gov. SUPPLEMENTARY INFORMATION: This action provides notice of EPA’s adequacy finding regarding the PM10 Limited Maintenance Plan for Eagle River, Alaska. EPA’s finding was made pursuant to the adequacy review process for implementation plan submissions delineated at 40 CFR 93.118(f)(1) under which EPA reviews the adequacy of an state implementation plan (SIP) submission prior to EPA’s final action on the implementation plan. On September 20, 2011, Alaska Department of Environmental Conservation submitted a PM10 maintenance plan revision to EPA. Pursuant to 40 CFR 93.118 (f)(1), EPA notified the public of its receipt of this plan that would be reviewed for an adequacy determination on EPA’s Web site and requested public comment by no later than February 27, 2012. EPA received no comments on the plan during that comment period. As part of our review, we also reviewed comments submitted to the Alaska Department of Environmental Conservation on the Limited Maintenance Plan during the public hearing process. There were no adverse comments submitted during the State hearing process regarding the new SUMMARY: E:\FR\FM\27APN1.SGM 27APN1

Agencies

[Federal Register Volume 77, Number 82 (Friday, April 27, 2012)]
[Notices]
[Page 25164]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-10218]


-----------------------------------------------------------------------

DEPARTMENT OF ENERGY

Federal Energy Regulatory Commission

[Docket No. RM12-4-000]


Revision to Transmission Vegetation Management Reliability 
Standard; Notice Inviting Comments on Report

    The Commission is posting and inviting comment upon a report 
prepared by the Pacific Northwest National Laboratory (PNNL) on 
``Applicability of the `Gallet Equation' to the Vegetation Clearances 
of NERC Reliability Standard FAC-003-2'' (PNNL Report).
    The Report was commissioned by the Commission's Office of Electric 
Reliability, for the purpose of obtaining an independent analysis of 
certain technical questions raised by the Minimum Vegetation Clearance 
Distances as proposed in the North American Electric Reliability 
Corporation's Reliability Standard FAC-003-2 (Transmission Vegetation 
Management). Specifically, PNNL was commissioned to prepare a report 
addressing the following:

    The overall scope of this project shall include analysis of the 
mathematics and documentation of the technical justification behind 
the application of the Gallet equation and the assumptions used in 
the technical reference paper [Exh. A of NERC's filing]. To put the 
analysis into perspective, are the assumptions made in the 
development of the Gallet Equation and their application in NERC-
approved Reliability Standard FAC-003-2 reasonable to address the 
minimum distance requirements needed to avoid sustained vegetation-
related outages? What variations in Gallet distance may occur when 
comparing the original testing (use of switching impulses and corona 
free electrodes) against the variety of impulses a line may be 
subject to and the concentrations of coronal effects when using 
vegetation instead of corona-free electrodes? Do the equations 
adequately address the limiting conditions (i.e., the expected 
extremes in prevailing ambient conditions including temperatures, 
humidity, conductor position, amplification of any coronal effects 
and wind speed) that are important to the insulation performance of 
a line to prevent flashover to nearby vegetation during real-time 
operating conditions? The limiting conditions will be identified, 
outlined, and applied in the analysis.
    This analysis shall also include a discussion of the 
appropriateness of using one clearance for all lines with the same 
operating voltage as opposed to linking the clearance to ``as 
built'' and design conditions. Finally, the analysis shall identify 
if the proposed clearance will provide the minimum clearance needed 
to avoid a flashover with regard to vegetation. (Footnotes omitted.)

    The PNNL Report will be posted on the Commission's Web site at 
https://www.ferc.gov.
    Comments on the PNNL Report should be filed with the Commission 
within 30 days of the issuance of this Notice. The Commission 
encourages electronic submission of comments in lieu of paper using the 
``eFiling'' link at https://www.ferc.gov. Persons unable to file 
electronically should submit an original and 14 copies of the comment 
to the Federal Energy Regulatory Commission, 888 First Street NE., 
Washington, DC 20426.
    All filings in this docket are accessible on-line at https://www.ferc.gov, using the ``eLibrary'' link and will be available for 
review in the Commission's Public Reference Room in Washington, DC. 
There is an ``eSubscription'' link on the Web site that enables 
subscribers to receive email notification when a document is added to a 
subscribed docket. For assistance with any FERC Online service, please 
email FERCOnlineSupport@ferc.gov, or call (866) 208-3676 (toll free). 
For TTY, call (202) 502-8659.
    Questions regarding this Notice should be directed to: David 
O'Connor, Office of Electric Reliability, Federal Energy Regulatory 
Commission, 888 First Street NE., Washington, DC 20426, 202-502-6695, 
David.OConnor@ferc.gov.

    Dated: April 23, 2012.
Kimberly D. Bose,
Secretary.
[FR Doc. 2012-10218 Filed 4-26-12; 8:45 am]
BILLING CODE 6717-01-P
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