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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:3 ^( d; g4 J+ S( J; @7 D
4 H$ h5 K7 `* S- Q. ~What 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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( \* u$ d# q# V) r1 A0 x* s/ |Please read Choices:2 n9 z4 |2 u* W7 M4 b5 ]
, h* R5 b8 z/ W5 `$ n* t( C: L Hhttp://www.ceac.ca/bbs/forum-10-1.html |
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发表于 2010-5-22 05:23
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