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Generally, for alternating current, the convention is that the black color coded conductor is hot, energized, or positive as you call it, the white color coded conductor is neutral, or ground, and the green coded conductor is earth, or a "grounding" conductor.j3h.

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โˆ™ 2007-09-03 08:04:18
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Q: Which wires are positive neutral and earth in a cable that is black white and green?
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