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

! R  J& N% H1 c: j6 ~4 i1 z
+ {2 p$ ?% m% E4 K4 L3 zThe question is unclear?
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?
" \/ N5 t- L7 T$ n8 |; C. Q3 ?Firstly, the equipment or circuit is energized or not ?
3 X2 U2 x) k; B, Z1 Y+ V- D  HIf 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 I# R3 U5 r9 v“Firstly, the equipment or circuit is energized or not ?”------打得对：）