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本帖最后由 移民电工 于 2010-5-22 07:20 编辑 # g1 \& U3 J/ ?& z
! x) g0 k2 q7 {, \Common 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.- x9 P0 w: U% e5 @, l( b8 i
, U* ?# q! W$ s- i9 DPlease read Choices:& H7 _: c9 P7 g
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发表于 2010-5-22 05:23
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