Outside Conductors, 600 Volts or Less

Certain requirements apply to branch-circuit, feeder, and service conductors run outdoors as open conductors that are rated 600 volts nominal or less.

Conductors on poles must have a separation of no less than one foot when not placed on racks or brackets. Conductors supported on poles must provide a horizontal climbing space no less than the following:

• Power conductors below communication conductors: 30 inches
• Power conductors alone or above communication conductors: 24 inches for 300 volts or less; 30 inches for more than 300 volts
• Communication conductors below power conductors: Same as power conductors
• Communications conductors alone: No requirement

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