Mark.Li 发表于 2014-6-17 23:06

比如电源。是输出端拉过载吗。还是电路里面任意两点间都要拉。

信思哲 发表于 2017-6-15 12:19

jsspace 发表于 2014-3-10 12:08 static/image/common/back.gif
测试方法如下:
功率计一个,滑动变阻器一个。
将滑动变阻器接到你需要测试的点,然后用功率计监测其功率 ...

这位大神一看就是测试出身,厚道

caowenpeng 发表于 2017-9-5 22:53

3.25 RISK OF FIRE – A risk of fire exists in all electrical circuits except: a) A Class 2 circuit, b) An LVLE circuit, or c) A circuit of 15 W maximum power limit under normal and single fault conditions, as measured in accordance with 8.8.

caowenpeng 发表于 2017-9-5 22:55

caowenpeng 发表于 2017-9-5 22:53
3.25 RISK OF FIRE – A risk of fire exists in all electrical circuits except: a) A Class 2 circuit,...

防火等同于LVLE OR CLASS 2了
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查看完整版本: UL 8750 8.6 50W功率点测试