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

  x$ H7 W) z; X0 [4 K
$ \" e. z% S3 d# j# M( o, DThe question is unclear?
/ Y# n1 F- m2 N( V3 A2 L' K6 }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…. 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?
% e: U1 b# G7 |2 ~/ h2 r; N* qFirstly, the equipment or circuit is energized or not ?
9 B! e! L4 x# NIf 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：）