本帖最后由 移民电工 于 2010-5-22 07:20 编辑 ' c1 O+ b P1 P! m7 b! [ + o6 D- W. }4 \Common mistake Question:+ ~4 g! {% \* ^7 {( d+ V% l/ U5 ?
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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.! `4 l3 \1 M" X" F: |# E' R
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Please read Choices: 0 d9 m& P0 s) ] + R# o7 s8 `5 N& {9 g$ qhttp://www.ceac.ca/bbs/forum-10-1.html