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$ y! ^2 |7 B9 L  s$ W  c# T- L
3 A6 I2 y! A: O& Q$ L: S6 t+ Y) pThe question is unclear?
& A- a* d3 ?- V4 RFirstly, 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?
, Z: H2 l( W! k9 HFirstly, the equipment or circuit is energized or not ?
) u- b$ o+ X; B+ R& h/ o/ ~If yes. You have to get the permit to shut down the power.  After you get the permit … fill a form sing the paper…. ...
2 Z' H/ g, |+ p; b  e1 {jack_lai 发表于 2010-2-15 22:24

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