 鲜花( 2)  鸡蛋( 0)
|
本帖最后由 移民电工 于 2010-5-22 07:20 编辑 ' u. R; G- H D9 q
7 E1 W- k7 x0 CCommon mistake Question:5 r" S- C7 _) S' v, q( ?# N2 _; C
% v+ l1 V% V( f! y( B2 C
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.) u5 Y, o2 q% ~/ [5 U! ?
0 H8 h6 S0 K' mPlease read Choices:2 o, ]2 V4 ?7 P) [5 A( p3 w
. ?( c$ b5 W$ k; S/ n. Z1 Ahttp://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
