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

1 Y- ]+ E% R( u! F- Q4 x# {  J
! t& E- G. H; ]9 k! oThe question is unclear?
Firstly, the equipment or circuit is energized or not ?
" D6 Z* G# z& m$ E9 D7 w, A0 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 ?
! }9 T: c* Y& n: E3 a* T* ]) XIf 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：）