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本帖最后由 移民电工 于 2010-5-22 07:20 编辑
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Common mistake Question:) P7 f" j% f" G+ ~3 M5 b
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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.% u5 X1 j. T. {5 z7 w9 p
: X3 m/ K7 \! j- k0 K& iPlease read Choices:7 m. i, Z0 V, S" E+ D" {) k8 s
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