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本帖最后由 移民电工 于 2010-5-22 07:20 编辑 ( H' M: Q7 {5 P5 ^+ _9 s
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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.1 ^$ U$ U' ?3 s2 r( t9 q
, |7 N1 O- f3 L+ R$ j5 i. RPlease read Choices:
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发表于 2010-5-22 05:23
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