jsspace 发表于 2012-4-17 14:25

关于绝缘的厚度(UL2388)

产品为非CLASS 2, 标准上对于绝缘的厚度有要求,我想知道这个厚度到底如何计算的,因为绝缘可能有两层组成,那么中间的空气算不算? 这个有相应的CTL决议,但是估计在UL中不适用。
7.4 There shall be a minimum of 3/64 inch (1.2 mm) of insulating material between uninsulated current
carrying parts of the series or series/parallel light string and the outer surface of the enclosure

Nezof 发表于 2012-4-17 15:08

双层绝缘线中间是没空气的吧
即使有的话,按照你这段的字面意思来看也是算的

jsspace 发表于 2012-4-17 16:31

Nezof 发表于 2012-4-17 15:08 static/image/common/back.gif
双层绝缘线中间是没空气的吧
即使有的话,按照你这段的字面意思来看也是算的

已经找到答案了,以最外面的绝缘厚度为准。
7.12 If a flexible light enclosure consists of multiple layers of polymeric materials, all layers shall comply
with 7.2 and only the outermost layer needs to comply with the UV resistance and water exposure
requirements of 7.10(a), providing that the outermost layer complies with the minimum thickness of 7.4.

冷月翻云 发表于 2012-4-18 08:58

绝缘厚度空气
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