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请教各位大佬,在LED灯中,对于非隔离电源驱动的LED灯板(使用铝基板),其结构要求LED灯板带电部件与铝基部分满足加强绝缘,那么铝基板的绝缘层是否满足加强绝缘呢?据说,铝基板的绝缘层一般也只能耐受1000V的电压。
7 K T3 ?& G+ y% s% ?4 r3 ?我引用了论坛里下列帖子的12楼的回复:7 y- a- M1 ?# I1 P# D
http://bbs.angui.org/forum.php?mod=viewthread&tid=114267&extra=&highlight=%C2%C1%BB%F9%B0%E5&page=2* b( G m' q& o5 \1 b
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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.
& j; e5 |) i) Y1 u* P* r$ ^For now, the standard knows no way to ensure that the insulation is equivalent to basic insulation.$ E5 z6 f) U8 x6 [% N; E
. S [! M t7 S5 o4 U有没有哪个标准或决议里有明确说明铝基板绝缘层的绝缘判定呢?% P- I7 m0 y$ P+ ^
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