 鲜花( 2)  鸡蛋( 0)
|
本帖最后由 移民电工 于 2010-5-22 07:20 编辑
; X# Y) A' A9 I
( l( h% N6 H/ ?Common mistake Question:
6 W3 |! F; V+ [* W# L$ y" g
" x" ?! z T+ ^& Q6 E/ N3 N- _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.
, H$ J8 ^4 c6 p" t8 p. ?" y
& B' Y( o, ~# b6 i6 PPlease read Choices:4 a/ ^ s5 _4 f0 P2 ?8 n
5 @! B3 ~8 P1 {' [8 N r+ _& Nhttp://www.ceac.ca/bbs/forum-10-1.html |
|