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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:
$ `; _4 e3 A+ A6 d5 K8 @/ y2 x30.1 Pressure test at high temperature# _* @ [& w( }% u. z7 S
The specimens are tested by means of the apparatus shown in figure 41. This apparatus has$ h1 U; e2 N7 i1 }; w0 ~
a rectangular blade (see figure 41a) with an edge 0,7 mm wide, to be used in the case of
) _5 ~2 _5 k2 Dround pins, or a blade having a round shape (see figure 41b), with a diameter of 6 mm and an8 E2 r5 |/ L2 e1 Z! S' p$ q* h
edge of 0,7 mm, in other cases." v+ M5 W& [1 t7 n2 U" {- m0 A
The specimens are placed in position as shown in figure 41.
" C9 H K' |" A/ g9 o/ \, w {The force applied through the blade is 2,5 N.
8 z% C9 S( f9 j o N/ `7 tThe apparatus, with the specimen in position, is maintained for 2 h in a heating cabinet at a
0 r& ~, }" J; y6 q1 d) R& Mtemperature of (200 ± 5) °C.
1 i2 W, H' i! @7 W' h$ qThe specimen is then removed from the apparatus and, within 10 s, cooled by immersion in& O- T: o: K! J
cold water.
$ t5 X/ u% m6 v8 |The thickness of the insulation remaining at the point of impression is measured and shall not
. h7 [: o6 W& p; ?5 f' khave been reduced by more than 50 % of its original value measured at the start of the test., o- ^. H. m( x# A
NOTE The values 2,5 N and (200 ± 5) °C are provisional." F9 v0 T! x6 x- Q
% r7 F" p$ n1 ]+ e当时我们采用PC6485的材料做, 结果是胶都融化了.
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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.: l0 \3 M- p- t) b3 X5 ~% v
R! g* ?6 i+ j$ Z: O* k
谢谢各位了. |
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发表于 2008-7-18 10:48
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