UL8750
3.27 UNIT, FIXED – A unit intended to be permanently connected electrically to the wiring system.3.28 UNIT, PORTABLE – A unit that is easily carried or conveyed by hand, and is provided with a
power-supply cord for connection to the supply circuit.
3.29 UNIT, STATIONARY – A unit that is intended to be fastened in place or located in a dedicated
space, and is provided with a power-supply cord for connection to the supply circuit.
请问这三种单元的区别
什么是永久连接
wiring system和supply circuit有什么区别
我的理解是:
Wiring System - 没有插头,直接连接到电箱
Supply Circuit - 有插头,插到插座上
我的理解:
固定式: 电线连接是接到建筑物里面的电线(brunch circuit),电线一般用接线端子等连接器连接,大部分由专业电工安装接线的。
移动式:灯具可以很轻易的用手移动,不用拆卸电线,通过电源线接入电源。
暂时固定式:灯具是暂时固定在某个位置,不能用手随意移动,但是通过电源线接入电源,不要求接线。一般常见的是,移动式橱柜灯,移动式的书架灯,移动式吊灯等。 依然 发表于 2013-3-20 17:52 static/image/common/back.gif
我的理解:
固定式: 电线连接是接到建筑物里面的电线(brunch circuit),电线一般用接线端子等连接器连 ...
恩,明白了,再帮我回一下UL 筒灯的帖子可以吗?
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