1.)
We must treat the metal LED carrier as a live part. The insulation between the PCB circuits and the metal carrier is only functional insulation.
For now, the standard knows no way to ensure that the insulation is equivalent to basic insulation.
本帖最后由 楚人美 于 2013-5-14 17:23 编辑
Alexsong 发表于 2013-5-14 14:24 static/image/common/back.gif
4.10.3注释讲的是带coating的金属外壳,我说的这种情况是LED模块上的coating(常见的为白色),在LED模块 ...
如果你说的LED模块上有透光板的话,很可能你的驱动是非隔离的。这隔板的作用并不是防磨擦。而是防维护时碰到LED模组。
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