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发表于 2017-2-21 11:42
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Nezof 发表于 2017-2-20 14:16
' @% f1 r2 p* z' G0 M有色温显指显示的照度计
& `! D+ y9 D% Y6 m; u显指跟ta关系不大,这个不同温度下的光输出,有照度计就行了 ( o4 [% |" T- B6 U
您好,应急灯里面的蓄电池要按照IEC61347-2-7 做测试,里面的第17章的供电电流测试要求:当镇流器和基准灯一起工作时的电流和依靠直流电压供电时的电流不能差异太大,要保证在正负百分之十五。测试时是将一个电流表串接在电池输出线那里然后将测得电流值和电池上标称做对比吗?谢谢!!!
) r4 c& _$ z4 `: p, f8 f9 Z# f2 s3 kAt the d.c. rated operating voltage, the supply current from the battery shall not differ by more
& ^8 y; y. e4 w4 g2 M( k, l+ vthan ± 15 % from the declared value when the ballast is operated with a reference lamp.8 S: o1 r# P1 @$ \- [' w
The supply shall be of low impedance and low inductance (applicable only to batteries remote
" ]: |: w h' y# b& Sfrom the ballast).( a* _: x" o4 b* [, H6 x+ l2 k
Compliance is checked by measurement. |
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