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本帖最后由 移民电工 于 2010-5-22 07:20 编辑 3 n& Q( u; _, t6 W" ?) J9 m
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Common mistake Question:" y: K9 {" y2 T
& _4 N" }8 u1 _0 d) bWhat 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., R- D" d: ?7 ~3 I9 v
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Please read Choices:; X" h+ I/ v! a. u! T
% L4 C- T3 g/ N. k+ {6 `http://www.ceac.ca/bbs/forum-10-1.html |
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