本帖最后由 移民电工 于 2010-5-22 07:20 编辑 6 {. `+ ?% P. z6 P9 @( z" K ~2 F5 C+ ?: ^/ I z+ B& v
Common mistake Question:' j: X' `3 W q1 I
5 u+ p/ v0 a5 A+ S* M! _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.% G+ G9 X. B- Y2 }* G5 Z. v5 i7 w
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发表于 2010-5-22 05:23
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