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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:& v" [. x0 ]" u6 e Q2 M( W
30.1 Pressure test at high temperature' g& P8 k% ~6 B3 l
The specimens are tested by means of the apparatus shown in figure 41. This apparatus has- |4 y) T( j; m9 J! N- ~
a rectangular blade (see figure 41a) with an edge 0,7 mm wide, to be used in the case of1 i! p) ~; b, U6 ?: b: w
round pins, or a blade having a round shape (see figure 41b), with a diameter of 6 mm and an- O9 j5 a! r$ H
edge of 0,7 mm, in other cases.
: K9 d/ f/ U# `The specimens are placed in position as shown in figure 41.( r* f) A$ s- b- J! R
The force applied through the blade is 2,5 N.8 e$ ]! c. ?5 K! H" x7 }* n8 r
The apparatus, with the specimen in position, is maintained for 2 h in a heating cabinet at a
% |% p# h& p. H5 P% ~temperature of (200 ± 5) °C.' h$ M; L' d4 n# q
The specimen is then removed from the apparatus and, within 10 s, cooled by immersion in9 |4 `4 ` N0 {) S
cold water.( F! ?% y6 U/ {
The thickness of the insulation remaining at the point of impression is measured and shall not% o/ i: f2 r2 `$ `+ N4 Z
have been reduced by more than 50 % of its original value measured at the start of the test.) K$ T0 N$ _1 p
NOTE The values 2,5 N and (200 ± 5) °C are provisional.
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* k/ C3 m% X* Z. H, k. E: z当时我们采用PC6485的材料做, 结果是胶都融化了.
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- d% e8 k$ d ]" l6 w( V: G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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/ x- E: z& c2 G谢谢各位了. |
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发表于 2008-7-18 10:48
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