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

$ v9 C6 z# ~7 k+ i8 I7 R) h
. R' `1 j. G& h( n: b* FThe question is unclear?
6 z2 w/ W( \' N! Q. KFirstly, the equipment or circuit is energized or not ?
! W! [7 B2 h2 K5 rIf 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…. ...
2 v# x8 I+ B7 u  njack_lai 发表于 2010-2-15 22:24

“Firstly, the equipment or circuit is energized or not ?”------打得对：）