本帖最后由 移民电工 于 2010-5-22 07:20 编辑 - b8 h8 b1 @7 G4 P2 B5 r8 A: Q! _0 L
Common mistake Question: u4 U& ]* |" M Z
( t! W3 L0 T, d8 s) ^% pWhat 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." b2 a( T; Q' G* D( p4 u9 f: `
! {3 c1 \; G& V. m2 L( D9 I1 g1 w
Please read Choices: . r' m0 K* D# H9 |2 ]) m* y+ o+ ^2 O+ C5 i4 Q7 V http://www.ceac.ca/bbs/forum-10-1.html
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
