Original General Order 128

Section III

Requirements For Supply Systems

35.1    Identification of Cables

Cables operating at a voltage in excess of 750 volts shall be permanently and clearly identified by tags or other suitable means to indicate their operating voltage and the circuit with which they are normally associated at each manhole or other commonly accessible location of the underground system.

EXCEPTION:    This requirement does not apply where there is only one such cable circuit and when diagrams supplied to workmen give sufficient identification of such cable.