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本帖最后由 移民电工 于 2010-5-22 07:20 编辑 6 D8 A8 _# C! `3 V# S5 `$ \
5 ?! ^2 _8 P/ c) a! BCommon mistake Question:
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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.0 s' X2 h2 m5 Y1 T0 N9 F6 [3 X
' \" K7 d0 J( Z1 HPlease read Choices:
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发表于 2010-5-22 05:23
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