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本帖最后由 移民电工 于 2010-5-22 07:20 编辑 " H9 E1 q# ~9 L b1 m
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Common mistake Question:
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, k* X2 A$ Y. Y, e2 VWhat 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.- I* O) }; N' [& x0 Q( U: L% d
1 ]+ S5 G$ H. X* Q9 ~3 rPlease read Choices:1 J G5 d: U' i7 l2 w) j
# E7 ]- E0 P$ E6 c6 N+ ~http://www.ceac.ca/bbs/forum-10-1.html |
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发表于 2010-5-22 05:23
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