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

" r0 |' _5 X3 r  a8 Q& ^" J& P
The question is unclear?
$ k; Y! H2 a( q8 L" d/ eFirstly, the equipment or circuit is energized or not ?
5 q4 s: x9 {. }; L% u* e; 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?
+ t# P. Q. z6 a" I4 tFirstly, the equipment or circuit is energized or not ?
& J% K* Z: p8 H4 @( HIf 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

! |5 r4 a4 W3 ]' A( R“Firstly, the equipment or circuit is energized or not ?”------打得对：）