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Re:We need a lot more electricians if we’re going to electri... by londons_explore on Wednesday January 11, 2023 @11:33AM (#34340341)
Electrical specs are very strict.

They aren't just about electrical safety directly, but also about not potentially confusing people in the future.

If the cable was black, then someone may not have known that it was an earth cable, and might have cut it, which would leave your electrical installation unsafe.

Thats the reasoning why using the wrong color for a wire can make it illegal.

Re:We need a lot more electricians if we’re going to electri... by vel0city on Wednesday January 11, 2023 @11:58AM (#34340819)
That's the thing though: the best choice for a ground wire is no color at all, just the raw copper wire.