 鲜花( 2)  鸡蛋( 0)
|
本帖最后由 移民电工 于 2010-5-22 07:20 编辑
5 j e0 `$ A' N" D& ]
3 R, K7 l9 M1 PCommon mistake Question:5 I0 U* Z, p O6 X. y/ U# W: L) {
5 A* c, ?) R6 _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." |- h$ f* _$ z0 q. q% r
% e. K' x1 p, t# b. Q$ MPlease read Choices:
" H0 a- x; y! M5 \4 I, `8 @% D+ {/ N; D: i* _
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
