本帖最后由 移民电工 于 2010-5-22 07:20 编辑 # Z6 }# {& V1 y- p/ q- o9 h# `- v) T$ M
Common mistake Question: " \5 O& h7 H) z. k2 D ! E7 i4 J7 d$ b2 vWhat 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. 1 M1 a L( Q' h* z7 S* y. ^" l2 |$ K. `
Please read Choices:8 r/ L4 q8 c! e9 v0 B
狗仔卡
鲜花(
鸡蛋(
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
