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1:有决议称III类LED 灯具温升测试电压是1.1倍,如果一款灯具带适配器,输出安全特地电压,那么这个灯具应该算是II 类还是III 类?
; t* `8 a/ {$ c2:耐压测试时样品发出的声音算是正常现象吗?所谓的闪络是指出现电火花吗 ?" _: ?! V( ?! l# y6 U
3:电容放电测试,标准说的是1分钟,1秒钟,那么1分钟或1秒钟后的放电电压超限该怎么判定?
7 F0 ~" K( j* X; _& }4:嵌入式灯具,IEC60598-1:2014 附录D中描述隔热棉是包裹在测试箱子外面的,我这里有黄颜色的那个隔热棉,不知道是否符合要求,请问大家的隔热棉是这个样的吗 ?( Q( S2 H; z! d3 s
a) Luminaires for recessing into ceilings with thermal insulating material covering the
5 f2 V2 Q4 G& g }2 P. { Wluminaire1 N0 g. F# x1 {+ d
Sealed box with thermal insulating material is tightly fitted to the outside of the box. The
2 ~7 r5 d' q7 Q) [: ythermal insulation shall be equivalent to two 10 cm thick layers of mineral wool with a coefficient9 J. i; ]: J" {$ Y0 k |
of thermal resistivity of 0,04 W/(m.K). Thinner layers can be used when having a
& E+ R6 Y$ O" B- |higher thermal resistivity. The thermal resistance of the test box shall in any case be at
6 W0 u$ g6 M: v7 _least 5 m2 K/W.
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" W) ~; l' C, e6 f! C5 {: p; y% e7 I+ n% Z- k8 v
谢谢指教 |
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发表于 2017-7-12 18:08
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