看你的电工基础知识牢固吗？(4)

homestay · 发表于 2010-2-14 18:10

What is the first thing you need to do and need to know before working on an electrical cuicuit/equipment?

jack_lai · 发表于 2010-2-15 22:24

本帖最后由 jack_lai 于 2010-2-15 22:26 编辑

The 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 · 发表于 2010-2-16 12:04

是否带电是很重要的。

homestay · 发表于 2010-2-16 17:42

The question is unclear?
2 C, W1 O' b1 N: V S( {Firstly, the equipment or circuit is energized or not ?
, b& D( @5 W! F+ V$ NIf yes. You have to get the permit to shut down the power. After you get the permit … fill a form sing the paper…. ...9 s# Y) [" f/ q8 z
jack_lai 发表于 2010-2-15 22:24

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

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[技术互助] 看你的电工基础知识牢固吗？(4)

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