daocaoren 发表于 2013-3-15 16:53

UL1012

6.18 POWER UNIT, FIXED – A power unit that is intended to be permanently connected electrically.

6.21 POWER UNIT, STATIONARY – A cord and plug connected power unit that is intended to be
fastened in place or located in a dedicated space.

以上2个电源有什么区别？

daocaoren 发表于 2013-3-18 17:34

没人回答么

Alexsong 发表于 2013-3-19 18:12

6.18是通过永久电气连接。
6.21是通过一条插头线连接到电源，放在一个固定的位置，不经常移动它。

daocaoren 发表于 2013-3-20 11:22

什么才叫永久电气连接啊 用接线帽扭在一起算吗？

kuzhuan2008 发表于 2017-9-8 21:20

路过,顺便学习下
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