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

& K4 x8 P, C* {5 ~
The question is unclear?
6 H$ X3 L$ @$ Q- m/ mFirstly, the equipment or circuit is energized or not ?
) T% {: p, [+ [  N4 O5 n+ F5 G% SIf 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?
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…. ...
4 h' `" ~" J' P+ {1 Mjack_lai 发表于 2010-2-15 22:24

" \: w9 v3 t1 n4 \9 v. S“Firstly, the equipment or circuit is energized or not ?”------打得对：）