Pennsylvania Code › Title 52 - PUBLIC UTILITIES › Part I - Public Utility Commission › Subpart C - Fixed Service Utilities › Chapter 57 - ELECTRIC SERVICE › Subchapter N - ELECTRIC RELIABILITY STANDARDS › Section 57.192 - Definitions

Current through Register Vol. 54, No. 28, July 13, 2024
The following words and terms, when used in this
						subchapter, have the following meanings, unless the context clearly indicates
						otherwise:
Adequacy
-The ability of the electric
						system to supply the aggregate electrical demand and energy requirements of the
						customers from various electric generation suppliers at all times, taking into
						account scheduled and reasonably expected unscheduled outages of system
						elements.
Circuit
-A conductor or system of
						conductors through which an electric current is intended to flow.
Conductor
-A material, usually in the
						form of a wire, cable, or bus bar, suitable for carrying an electric
						current.
Control area
-An electric system or
						systems, bounded by interconnection metering and telemetry, capable of
						controlling generation to maintain its interchange schedule with other control
						areas and contributing to frequency regulation of the interconnected
						systems.
EDC-Electric distribution company
-An
						electric distribution company as defined in
						66 Pa.C.S. §
												2803
						(relating to definitions).
Electric generation supplier
or
electricity supplier
-An electric generation supplier or
						electricity supplier as defined in
						66 Pa.C.S. §
												2803.
FERC
-Federal Energy Regulatory
						Commission.
IEEE
-Institute of Electrical and
						Electronic Engineers.
Interruption duration
-A period of time
						measured to the nearest 1-minute increment which starts when an electric
						distribution company is notified or becomes aware of an interruption, unless an
						electric distribution company can determine a more precise estimate of the
						actual starting time of an interruption, and ends when service is restored.
						Interruptions shall be categorized, based on duration, such as momentary or
						sustained interruptions, or by similar descriptions, as adopted by the IEEE or
						similar organization identified by the Commission. This subchapter requires
						tracking, reporting and evaluation of two categories of interruption duration
						that will incorporate any changes in the terms used or the definitions of those
						terms as adopted by the IEEE or Commission order.
Major event
-
(i) Either of the following:
(A) An interruption of electric service
					 resulting from conditions beyond the control of the EDC which affects at least
					 10% of the customers in the EDC's service territory during the course of the
					 event for a duration of 5 minutes each or greater. The event begins when
					 notification of the first interruption is received and ends when service to all
					 customers affected by the event is restored.
(B) An unscheduled interruption of electric
					 service resulting from an action taken by an EDC to maintain the adequacy and
					 security of the electrical system, including emergency load control, emergency
					 switching and energy conservation procedures, as described in §
												57.52 (relating to emergency load
					 control and energy conservation by electric utilities), which affects at least
					 one customer.