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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?/ q9 z3 q" f% T) K6 T
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 ?$ l6 @4 O$ }6 s2 o5 p( H; Q3 j
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?" O( u9 L2 h b& c {' b
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 ?- Z7 i' D$ M- u' @% Q4 [
a) Luminaires for recessing into ceilings with thermal insulating material covering the: E4 m2 v& X _/ {/ M$ i
luminaire
6 K/ Z8 d7 \! D% SSealed box with thermal insulating material is tightly fitted to the outside of the box. The8 @1 i7 M( F3 P# u# J9 x! f! U
thermal insulation shall be equivalent to two 10 cm thick layers of mineral wool with a coefficient
6 Q* d; `/ z9 @) t4 @of thermal resistivity of 0,04 W/(m.K). Thinner layers can be used when having a) Z. p9 [, [# }
higher thermal resistivity. The thermal resistance of the test box shall in any case be at
( \' f- l7 C; cleast 5 m2 K/W.) m( p2 L& w- E1 E. ]/ K1 ^% \
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谢谢指教 |
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