88169103 发表于 2013-8-1 11:11

之前做过用 的标准是950+8750这个距离应该是满足6.4mm

tsunn 发表于 2013-8-9 21:21

hello_rsh 发表于 2013-7-30 11:40 static/image/common/back.gif
UL 8750 条款7.5说到不同的电路之间最少的隔离距离是6.44mm,那么LED驱动初级电路和次级电路是不同的电路,他 ...

没有说最少6.44mm吧,原话的意思是:要以不同电路之中最高的电压为绝缘额定参考,或者它们之间达到6.44mm即可。原话是:
Insulated conductors of different circuits that may contact each other , including wires in a terminal box or compartment, shall haveinsulation rated for the highest of the circuit voltages or shall be reliable separated a minimum of 6.44 mm (0.25inch)
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