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本帖最后由 移民电工 于 2010-5-22 07:20 编辑 5 T, J, `, ^+ A9 s4 q
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Common mistake Question:2 q- n9 O2 _3 x0 ^
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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.7 O$ b: e. N) G- w% T
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Please read Choices:2 }' M7 S- u3 W% ~1 l: W8 M& x
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狗仔卡
发表于 2010-5-22 05:23
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