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本帖最后由 jjlamshushushu 于 2014-6-27 06:46 编辑
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* V( L: R) X+ B# b+ R3 x60598-1 Clause 13.2.1
$ S. r' @9 i5 G# }- aCompliance is checked by the following test:
6 B# g/ W, ]8 x/ VThe test is not made on parts of ceramic material or on insulation of wiring.9 \6 L( A* x. \( R9 n5 J2 A
The test shall be made in a heating cabinet having a temperature 25 °C ± 5 °C in excess of the6 I& F, F* X1 h& ~2 J+ W z
operating temperature of the relevant part determined during the temperature test (normal& d: F' i8 v7 C7 L
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.: F% A# z3 O8 _5 r
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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