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本帖最后由 移民电工 于 2010-5-22 07:20 编辑 ( ^+ D5 i: K; L" S8 t
$ s0 u! {+ T, i" J; }( aCommon mistake Question:/ I* @, ?6 t. s
& a4 H) @/ n1 S3 ]. s5 DWhat 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:: o. ]: Z* w4 P n! R
( \0 Q" Y7 k% D6 s7 Shttp://www.ceac.ca/bbs/forum-10-1.html |
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狗仔卡
发表于 2010-5-22 05:23
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