Current through Bulletin 2025-06, March 15, 2025
A. Station
Instruments -- Utilities shall install the instruments necessary to obtain a
record of the load on their systems, showing at least the monthly peak and a
monthly record of the output of their plants. Utilities purchasing electrical
energy shall install the instruments necessary to furnish information regarding
monthly purchases of electrical energy, unless those supplying the energy have
already installed instruments from which that information can be obtained.
Utilities shall maintain records indicating the data obtained
by station instruments.
B.
Voltage and Frequency Restrictions --
1.
Unless otherwise directed by the Commission, the requirements contained in the
2011 edition of the American National Standard for Electrical Power Systems and
Equipment-Voltage Ratings (60 Hz), ANSI C84.1-2011, incorporated by this
reference, shall be the minimum requirements relative to utility
voltages.
2. Utilities shall own or
have access to portable indicating voltmeters or other devices necessary to
accurately measure, upon complaint or request, the quality of electric service
delivered to its customer to verify compliance with the standard established in
Subsection R746-310-4(B)(1).
Utilities shall make periodic voltage surveys sufficient to indicate the
character of the service furnished from each distribution center and to ensure
compliance with the voltage requirements of these rules. Utilities having
indicating voltmeters shall keep at least one instrument in continuous
service.
3. Utilities supplying
alternating current shall maintain their frequencies to within one percent
above and below 60 cycles per second during normal operations. Variations in
frequency in excess of these limits due to emergencies are not violations of
these rules.
C. Station
Equipment --
1. Utilities shall inspect their
poles, towers and other similar structures with reasonable frequency in order
to determine the need for replacement, reinforcement or repair.
D. General Requirements -- Unless
otherwise ordered by the Commission, the requirements contained in the National
Electrical Safety Code, as defined at
R746-310-1(B)(13),
constitute the minimum requirements relative to the following:
1. the installation and maintenance of
electrical supply stations;
2. the
installation and maintenance of overhead and underground electrical supply and
communication lines;
3. the
installation and maintenance of electric utilization equipment;
4. rules to be observed in the operation of
electrical equipment and lines;
5.
the grounding of electrical circuits.
