 鲜花( 2)  鸡蛋( 0)
|
本帖最后由 移民电工 于 2010-5-22 07:20 编辑 $ r% |" o$ |2 s
% Q9 s/ V. g9 Y/ y, ~
Common mistake Question:/ U5 ]7 x) r" H& P! \ p4 X, I
6 W, F# Y: y" V$ B/ Q' Q& T- mWhat 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.
4 {* {. Z# p% G7 g4 f% k6 ?- X% c. N; j- K) u, }* b- ]$ i* ^" `
Please read Choices:
6 v4 X# d! M6 T0 ?
2 C( ^; i; R! g" chttp://www.ceac.ca/bbs/forum-10-1.html |
|