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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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3 I, D$ c4 i7 E! ~Common mistake Question:
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; h5 ?" Y$ Z% s2 R- f% I' K4 GWhat 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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) C- r- q; e% b& s; |! TPlease read Choices:
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( R7 X( m& r b2 U6 e+ ^http://www.ceac.ca/bbs/forum-10-1.html |
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