AC WIRING COLOR CODE

Building Electrical Wiring Color Codes
Black - use for line voltage or "hot" wire. Red - a second line voltage or "hot" wire. White - neutral. Bare - protective ground. But as we will illustrate below, on some older buildings spotting any color at all in the wiring insulation or jacket can be difficult or even impossible.
International Wiring Color Codes for AC Power Circuits
In the United States, the National Electrical Code (NEC) mandates electrical wiring color codes for the neutral power conductor and protective ground. The neutral conductor must be gray and the protective ground must be either green, green-yellow, or bare copper. “Green-yellow” refers to
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