本帖最后由 移民电工 于 2010-5-22 07:20 编辑 8 D6 w; C- q: f/ l i! S$ `) f * n) \* A% }- ]( GCommon mistake Question: + a7 [" B" f3 d/ q# K, t# U6 I/ b7 D% ?( u4 F2 V1 A
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." Q) P K; b- X* Q& _5 Y# E" O
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发表于 2010-5-22 05:23
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