General Order 128

Section II

Definitions of Terms as Used in These Rule

23.5     Supply System means an underground electrical supply system including all of the subsurface and associated above–ground structures, conductors, services and appurtenances located on poles, on or in buildings or in electrical stations and which are used for transmitting and distributing electrical energy.

NOTE:        Communication, fire alarm, police, traffic control, signal and other circuits that operate in excess of the voltage, power and cable shield or sheath limitations for communication systems (Rule 20.4) are included in this definition.