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本帖最后由 移民电工 于 2010-5-22 07:20 编辑 9 w2 s$ ^+ u) j, c: q" D/ k
9 W8 z4 w6 ?7 p/ ^Common mistake Question:4 e8 E; D3 Y- T5 _
1 B! r* p! D) y2 eWhat 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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, v9 A$ G9 {: b; \) s- l6 IPlease read Choices:! S0 E, e$ M1 N. o1 X6 k' o, R, ]
3 \& ~- k3 w- Jhttp://www.ceac.ca/bbs/forum-10-1.html |
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