看你的电工基础知识牢固吗？(4)

homestay

What is the first thing you need to do and need to know before working on an electrical cuicuit/equipment?

jack_lai

% h* c' B, w) O7 O. r6 HThe question is unclear?
Firstly, the equipment or circuit is energized or not ?
$ y+ `; f/ l$ c- G) YIf yes. You have to get the permit to shut down the power.  After you get the permit … fill a form sing the paper…. You have turned the power off for this equipment or circut. After that , you can do what you want to do.

Allan2008

是否带电是很重要的。

homestay

The question is unclear?
6 p9 ?* W) n, x/ R& P$ X7 i/ K, ^Firstly, the equipment or circuit is energized or not ?
If yes. You have to get the permit to shut down the power.  After you get the permit … fill a form sing the paper…. ...
jack_lai 发表于 2010-2-15 22:24

! }  F$ D& n- U) _1 x“Firstly, the equipment or circuit is energized or not ?”------打得对：）