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本帖最后由 移民电工 于 2010-5-22 07:20 编辑
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Common mistake Question:
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1 v" D8 U$ F& Q. n- [: FWhat 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.2 P C0 a/ k$ O& B5 I! J
. W! l; P s. C4 j% KPlease read Choices:
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