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

! N  C- U& j6 x; Q8 B0 ]
The question is unclear?
4 v& R  r5 c9 X8 o9 kFirstly, the equipment or circuit is energized or not ?
, u; N3 C, A9 X9 L' yIf 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?
3 h/ s0 @1 S' x0 T, F+ h! QFirstly, the equipment or circuit is energized or not ?
& a3 P6 ^+ K" r$ w2 R- H. A9 L4 qIf 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

1 e9 W7 ]2 h( W( ~5 |: h9 z“Firstly, the equipment or circuit is energized or not ?”------打得对：）