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

* {4 _, c' u9 I. [8 W0 ]The question is unclear?
0 C! g/ s$ s4 S5 u+ `& zFirstly, the equipment or circuit is energized or not ?
, E; G0 N! ^. l  QIf 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 ?
7 V( T8 W. f6 r" D1 dIf yes. You have to get the permit to shut down the power.  After you get the permit … fill a form sing the paper…. ...
' g* b7 q8 N4 Y+ O& Ajack_lai 发表于 2010-2-15 22:24

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