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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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% _( Z. p2 `: H0 lCommon mistake Question:4 r1 U0 t- F& D- m, g* b& U
/ m2 ?% C$ `: z( A( ~. b2 ]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.# U; i7 f. K. r! y$ v% D1 S
! x, U1 L' G/ c6 h' _Please read Choices:6 Q8 P" q# f+ b2 b3 W5 x) p: w
+ Q, s" c5 P! n6 u, thttp://www.ceac.ca/bbs/forum-10-1.html |
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