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本帖最后由 jjlamshushushu 于 2014-6-27 06:46 编辑 & m# j* m0 S5 x3 o3 k& L
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60598-1 Clause 13.2.1 , P3 [, S7 m$ A! R" z
Compliance is checked by the following test:
9 {% m5 w. D" X/ a# o: U- _The test is not made on parts of ceramic material or on insulation of wiring.
; j, g1 K5 n" z6 B, M0 e% eThe test shall be made in a heating cabinet having a temperature 25 °C ± 5 °C in excess of the& @- u$ \# Y* a. S" p$ P
operating temperature of the relevant part determined during the temperature test (normal
! Y( E' {& l8 B5 Y, ooperation) 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.3 p0 z- C' c3 g( p9 [0 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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