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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?" P# P7 F8 o$ k4 G% F
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 ?
8 ?- A3 y) N' o+ B2 P, T3: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?
" @$ r+ a, Y$ H4: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 ?6 I. e5 ]& F3 K$ R
a) Luminaires for recessing into ceilings with thermal insulating material covering the4 @8 _& ?9 _0 g6 d4 B& S
luminaire
. `% z/ v) e$ \! h% rSealed box with thermal insulating material is tightly fitted to the outside of the box. The4 a9 R$ A3 X3 Y' m6 D
thermal insulation shall be equivalent to two 10 cm thick layers of mineral wool with a coefficient
) ?- s8 b# w$ G4 tof thermal resistivity of 0,04 W/(m.K). Thinner layers can be used when having a
$ e* E4 f+ M% ?8 I% R: vhigher thermal resistivity. The thermal resistance of the test box shall in any case be at: \3 ^/ X* K: \7 x+ a
least 5 m2 K/W.: D% J0 b& R, A+ t5 m' D
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谢谢指教 |
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