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

The question is unclear?
Firstly, the equipment or circuit is energized or not ?
8 C1 ^' u* Y) |# {1 |! u$ zIf 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?
' _5 B" h' U2 Q* L! P2 v- HFirstly, 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…. ...
7 b9 O, W; Q$ x0 j( q1 Ejack_lai 发表于 2010-2-15 22:24

8 Q- l# h& O1 D7 y" |) y; k0 K1 z“Firstly, the equipment or circuit is energized or not ?”------打得对：）