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- }: a  f! t7 w$ |$ b7 |The question is unclear?
" Y1 d4 [. x# P2 }- AFirstly, 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?
0 ?: k" i3 C; }6 a, w1 j. hFirstly, the equipment or circuit is energized or not ?
1 w% r7 q' W5 q& ZIf 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

# `8 j  A$ A$ q& ]“Firstly, the equipment or circuit is energized or not ?”------打得对：）