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引用第3楼jsspace于2011-11-30 16:17发表的 :
0 b; T+ Y' a- a我仔细的看了一下,datasheet上提到的是CSA的要求。 4 u, `# a0 a' ]6 @1 M0 J
CSA也这么要求,看来又多了一家。
] u6 ~+ Z$ Q2 ?6 l# q; R \LED这东西本身就比较脆弱(3.4V左右电压),现在还要求这么高,难做啊。/ k8 y I! D) r& t- _4 a
看来UL 1993中有段话还是稍微人性点:
T$ k+ c: s% _- qD.1.5 A device employing a solid-state component that is not relied upon to reduce a risk of electric shock9 o9 ?) i% ?) ?! P, |( g, }
and that can be damaged by the dielectric potential may be tested before the component is electrically
4 \2 u% _+ d/ J# I9 s% ^2 |9 ^connected provided that a random sampling of each day’s production is tested at the potential specified+ m7 I- r( C. Q) R+ `2 s! x1 l
in Table D.1. The circuitry may be rearranged for the purpose of the test to reduce the likelihood of6 Y8 [ L( D/ @
solid-state component damage while retaining representative dielectric stress of the circuit. |
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