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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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E& n+ M1 j. X% d, z( o4 ~Common mistake Question:7 N% ~/ z t6 V+ p
4 Z( d) ~9 _8 p w" rWhat 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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: E, V! y5 l9 \) DPlease read Choices:
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