 鲜花( 2)  鸡蛋( 0)
|
本帖最后由 移民电工 于 2010-5-22 07:20 编辑
6 f }( s O% W# n- B% K) |9 w) K; {& M
Common mistake Question:9 }$ n! |2 Q# {
0 X$ [1 b, X; F1 P2 E& e2 \. o
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.7 [, q/ v, v# _1 g
# M% F% G2 h) y+ l& G0 `: ]
Please read Choices:
; ^: G R; [7 ]/ x0 i9 _) o; Y% c( |4 N5 o% C, M, D
http://www.ceac.ca/bbs/forum-10-1.html |
|
狗仔卡
发表于 2010-5-22 05:23
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
显身卡
楼主
