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本帖最后由 移民电工 于 2010-5-22 07:20 编辑 4 F: Y$ I( K6 T; E% [
+ ]+ i2 @8 Y( W- e& e& z4 U: UCommon mistake Question:
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+ O+ T+ O' S/ j& F- fWhat 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.6 F4 M: b( i7 V% K4 g% O
9 R- a* W# D' F1 t1 M% E, \Please read Choices:2 g, [# R- O. Y4 _
# M" e7 J/ J; Vhttp://www.ceac.ca/bbs/forum-10-1.html |
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