Common mistake Question,现场图片一览

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; y7 r" F9 f8 }! o( ^2 Y7 ACommon mistake Question:

What would you do? Lets say you are adding a circuit into a sub-panel, and you see no ground bar. The grounds and neutrals of about twenty 12-2s go to the neutral bars and the box remains ungrounded. Your sub-feed is four wire(A,B,N,G) and the last forgetful sparky left that bar that can bond the box to the neutral bar. please vote.

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移民电工

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加拿大华人电工论坛
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