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本帖最后由 jjlamshushushu 于 2014-6-27 06:46 编辑
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' _5 H; ^& t' E ~, e- Q60598-1 Clause 13.2.1
v0 a! d0 b* _6 q4 NCompliance is checked by the following test:: ]( R" |0 p% f8 ?: I1 a* n
The test is not made on parts of ceramic material or on insulation of wiring.
0 X8 i' Q2 @6 D* FThe test shall be made in a heating cabinet having a temperature 25 °C ± 5 °C in excess of the( z0 D) }, X5 y' ?2 C" |
operating temperature of the relevant part determined during the temperature test (normal8 D3 t2 t6 s1 l. \4 Q
operation) of Section 12, with a minimum temperature of 125 °C when parts retaining current carrying parts or SELV parts in position are tested, and 75 °C for other parts.
0 u3 `" }& o( C" x* Q5 L载流部件又没有说一定是高压的,也可以是SELV,低压大电流由于过热照样会引起载流部件短路发生火灾(比如常用在电动类的24V的镍氢电池),所以SELV球压是必须需要考虑的。。。当然,SELV的附加绝缘的塑料部件可以免去球压测试。 |
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