II,III类灯具温升测试
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?2: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 ?
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?
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 ?
a) Luminaires for recessing into ceilings with thermal insulating material covering the
luminaire
Sealed box with thermal insulating material is tightly fitted to the outside of the box. The
thermal insulation shall be equivalent to two 10 cm thick layers of mineral wool with a coefficient
of thermal resistivity of 0,04 W/(m.K). Thinner layers can be used when having a
higher thermal resistivity. The thermal resistance of the test box shall in any case be at
least 5 m2 K/W.
谢谢指教
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