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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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g6 y: K1 z$ q7 @Common mistake Question:5 o1 B7 ]3 E) A8 x, r8 {9 Z
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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.
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' e2 g7 k& [2 G6 U4 D6 u4 yPlease read Choices:3 H; l3 e9 [4 n0 ]8 Z3 F. d, a; A' n
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