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

The question is unclear?
0 v! x/ L, ?& z0 p/ AFirstly, the equipment or circuit is energized or not ?
& X8 ~+ I( o% {' G; I8 }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?
Firstly, the equipment or circuit is energized or not ?
  D- t8 G' B9 y# {, h' z6 U! xIf yes. You have to get the permit to shut down the power.  After you get the permit … fill a form sing the paper…. ...
3 s) G( m7 C) u! A5 `+ a/ ]jack_lai 发表于 2010-2-15 22:24

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