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› EN60669-1 single pole switch has function insulation?
yinzi
发表于 2011-6-20 09:33
EN60669-1 single pole switch has function insulation?
请教, EN60669-1普通的单极开关有功能绝缘吗?
我觉得是没有的,它不象插座有L极,N极.
是这样理解吗?
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EN60669-1 single pole switch has function insulation?