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本帖最后由 tsunn 于 2013-6-18 18:49 编辑
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For the evaluation of the optical radiation hazards IEC/EN 62471 shall be applied.
9 J* m1 Q' _0 f! n0 ~Awaiting the future modifications of product standards (lamps, luminaires and others), all the# u9 E/ p& X, ]2 b/ F
requirements, including marking, provided by IEC TR 62471-2 shall be applied." h9 N9 K" O A/ Z: ?/ }) {" |
- For LEDs with low luminance (< 10^4 cd/m^2) emitting only in the visible range there is no need of6 S: I' ^$ [) x- Y6 {) `, i( H
hazards risk classification according to IEC/EN 62471 (see clause 4.1).) W! h/ `8 f# g- J2 k6 H
- It’s up to the Certification Body to accept the luminaire manufacturer declaration based on relevant
3 k8 m2 _! |6 c( [9 W1 a. gtests showing that the radiation from the luminaire does not exceed the values given in IEC/EN
8 ~: z* r4 ?2 t! v% V& `/ k3 G62471 for Exempt Group and Risk Group 1. In the TRF, it is indicated that judgement is based on
/ U6 m( P, A: ]% X! C; @0 bmanufacturer’s declaration. If such a declaration is not provided, the measurements given in
* w( {, K( Z0 @7 }IEC/EN 62471 shall be performed.
F/ k- z: l7 b% x) R谁光学好一点的，帮忙理解一下上面这段话。
" ^0 h; _6 r2 Y- Z: s3 n亮度低于10^4cd/m^2不需要根据62471危险分类。这个亮度怎么去理解，距离光源远近不同，亮度肯定不同，它只是笼统的说亮度低于10^4cd/m^2，没有任何前提条件，到底是距离光源1米范围内，还是距离光源0.5米范围内，还是其他范围内，没作任何说明。对了，灯具有个照射距离标，会不会一般按照0.5m来定呢？照射距离标也有标0.1的，或许根据不同的标法有不同的规定，比如标0.3m,那么此条CTL决议就理解为0.3m处亮度小于10^4cd/m^2不用考虑62471.( T* N2 l I6 v7 T
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发表于 2013-6-18 18:34
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