 鲜花( 2)  鸡蛋( 0)
|
本帖最后由 移民电工 于 2010-5-22 07:20 编辑 1 f7 Q% P: M) T* X0 @0 M
. _: a" b: C/ T6 t$ XCommon mistake Question:
6 w, _! w& S" ^% i8 D$ J/ }
. k. Q8 B1 T. E% Q( U+ e" 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.
% g5 M4 N1 g! t3 _8 W. ], `- m* F n4 C" x9 f2 j
Please read Choices:$ y1 E: F, `& d9 G% l; Z* i
3 h+ b1 {& g; |* i, V# T& x- n- x9 |( Ohttp://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
