本帖最后由 移民电工 于 2010-5-22 07:20 编辑 . j' _6 R+ E1 w A. B$ s+ {. l( PCommon mistake Question: % m: |" [+ u7 ?" Z5 ^ % W' s9 _9 w" s% d d* ?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.9 e% z/ J. Z- ?8 v* O# M5 Y
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Please read Choices: ( N# x. v; O- Z) R* N. t6 I$ p 2 h( f( X0 O0 e& K/ _http://www.ceac.ca/bbs/forum-10-1.html