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

+ S& l( ^. y. U# S
" A& H0 f: _8 P. t5 s; \: @. ?The question is unclear?
Firstly, the equipment or circuit is energized or not ?
5 ^6 k/ N# k$ XIf 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?
0 P+ Y: Y- @& B% b% M( sFirstly, the equipment or circuit is energized or not ?
/ v6 A* M) V1 G7 ~6 H( D7 S, sIf 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

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