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最近在一家实验室做带转换插头(VDE/BS/AU/CHN/US)电源的CB测试, 实验室要求对转换插头做EN50075和IEC60884-1的测试. 其中有一项测试为:
0 n2 K8 W! X( t5 X, |# v30.1 Pressure test at high temperature" w# Q" W) x; P8 k/ h
The specimens are tested by means of the apparatus shown in figure 41. This apparatus has7 s1 N) B3 k) c( V% m& ?
a rectangular blade (see figure 41a) with an edge 0,7 mm wide, to be used in the case of* \% c) d( A& u; w1 z
round pins, or a blade having a round shape (see figure 41b), with a diameter of 6 mm and an: r0 g v$ T- [1 Q- ]. T
edge of 0,7 mm, in other cases.
) L9 a* h8 ?8 n1 wThe specimens are placed in position as shown in figure 41.- ~; h0 z' ]/ W3 Q
The force applied through the blade is 2,5 N.# |' E3 b$ y j% _3 E* K
The apparatus, with the specimen in position, is maintained for 2 h in a heating cabinet at a
# o7 B& v# M/ F2 atemperature of (200 ± 5) °C." b; Q4 f, k4 S2 O: z) h2 F
The specimen is then removed from the apparatus and, within 10 s, cooled by immersion in, b# l: G7 `( A. s+ I8 @0 J- U& ^
cold water.
9 Z, U! k4 Y( W8 ]( c. \The thickness of the insulation remaining at the point of impression is measured and shall not+ e, R1 ]5 c3 z& Y
have been reduced by more than 50 % of its original value measured at the start of the test.
v5 F7 E, F; g( _2 MNOTE The values 2,5 N and (200 ± 5) °C are provisional.& Z9 v0 |& }' n, T4 K( Z
8 r- S. I* G9 L/ p+ G4 M f# p当时我们采用PC6485的材料做, 结果是胶都融化了.4 d# ?( b2 a* n2 Y
, o0 t; U4 j+ x* k8 g% o# O
请各位帮忙是否做过类似测试?请帮忙提供可以通过此测试的塑胶材料.
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5 o, O/ u) E2 l+ ^% O: I谢谢各位了. |
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