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本帖最后由 jjlamshushushu 于 2014-6-27 06:46 编辑 * f+ a" b- q" d) B* ]
- i7 a5 P& w. \6 P60598-1 Clause 13.2.1
# E+ k4 h4 e) F4 V- y% v+ }Compliance is checked by the following test:
6 c5 _ j2 D/ D8 d, F+ ]: A+ IThe test is not made on parts of ceramic material or on insulation of wiring.8 x" Y: X5 c. {- S! }3 A
The test shall be made in a heating cabinet having a temperature 25 °C ± 5 °C in excess of the
& ]; h7 m" ?% V, I$ m9 N+ soperating temperature of the relevant part determined during the temperature test (normal: z1 ]+ V/ v( T8 N8 t7 G5 a0 z' X
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.# M% [% A7 @) q0 r6 v2 L$ v
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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