WIRING, GENERAL 600 VOLTS AND UNDER [DTK:ss]

B. Color Coding For 277/480 Volt Electric Light and Power Wiring: 1. Color Code: a. 2 wire circuit – brown, gray. b. 3 wire circuit – brown, yellow, gray. c. 4 wire circuit – brown, yellow, orange, gray. 2. Gray to be used only for an insulated grounded conductor (neutral). ................
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