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

1 l8 b% c. W( f
The question is unclear?
# d0 k; x, i8 P! c8 s0 nFirstly, the equipment or circuit is energized or not ?
0 H, [8 g9 A7 a: f- jIf 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 ?
' _# A7 o9 Y/ d0 a# {; E: BIf yes. You have to get the permit to shut down the power.  After you get the permit … fill a form sing the paper…. ...
, x% e. w5 J) z1 ijack_lai 发表于 2010-2-15 22:24

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