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本帖最后由 移民电工 于 2010-5-22 07:20 编辑 - c# d/ Z3 m5 \- ?7 ?9 _: M& y
* L0 R0 p: [ GCommon mistake Question:
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1 G, I/ B9 R6 HWhat 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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Please read Choices:8 W, F& p s0 H N" A' ^
8 F3 a+ e; _1 j+ Zhttp://www.ceac.ca/bbs/forum-10-1.html |
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发表于 2010-5-22 05:23
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