Pennsylvania Code
Title 52 - PUBLIC UTILITIES
Part I - Public Utility Commission
Subpart C - Fixed Service Utilities
Chapter 57 - ELECTRIC SERVICE
Subchapter B - SERVICE AND FACILITIES
Section 57.15 - System frequency

Universal Citation: 52 PA Code ยง 57.15

Current through Register Vol. 54, No. 38, September 21, 2024

(a) Standard frequency. An electric distribution company supplying alternating current service shall adopt and file with the Commission a standard frequency or frequencies for its system, the suitability of which may at any time be determined by the Commission.

(b) Allowable variation. An electric distribution company shall maintain the system frequency within 3% of the standard frequency adopted. Momentary variations of frequency of more than 3%, which are clearly not due to lack of proper equipment or reasonable care on the part of the electric distribution company will not be considered as violations of this section.

(c) Records. An electric distribution company shall continuously monitor and record system frequency variations. The records shall be provided to the Commission on request.

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