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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:
% L& j/ b; B- s; y7 G30.1 Pressure test at high temperature# l s0 T- I4 u3 X# F8 P! W
The specimens are tested by means of the apparatus shown in figure 41. This apparatus has# g) t' ?' R- b" X& C
a rectangular blade (see figure 41a) with an edge 0,7 mm wide, to be used in the case of
9 w- k+ o/ ]+ f5 p2 v* d# S% [round pins, or a blade having a round shape (see figure 41b), with a diameter of 6 mm and an
5 M5 H& l( ^1 l( D1 J$ b$ x hedge of 0,7 mm, in other cases.+ X; U+ F* T, Z6 s' |* ~/ s
The specimens are placed in position as shown in figure 41.
% r1 |/ k- \8 w" @2 ~7 [2 aThe force applied through the blade is 2,5 N.
9 M% r9 c+ o% l4 _* W. u a% `The apparatus, with the specimen in position, is maintained for 2 h in a heating cabinet at a
$ O' t9 s" e$ Rtemperature of (200 ± 5) °C.1 F8 a1 P! R! n
The specimen is then removed from the apparatus and, within 10 s, cooled by immersion in5 T) q1 \( v$ J
cold water.
* ^! C H/ e8 @# QThe thickness of the insulation remaining at the point of impression is measured and shall not
" ~& @ s, J3 Y. L2 z, Ahave been reduced by more than 50 % of its original value measured at the start of the test.
2 I$ K: e: H: |; W+ fNOTE The values 2,5 N and (200 ± 5) °C are provisional." M) }. z6 ^) u8 G( q
. \* }2 h- M5 f7 N
当时我们采用PC6485的材料做, 结果是胶都融化了.
4 k" c( e0 U, [ F9 J9 O3 |
1 i* h( n5 C5 ]* `' 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.
# m1 H' s7 M! s3 K* D1 E$ B5 T% e4 l9 I6 v* U
谢谢各位了. |
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发表于 2008-7-18 10:48
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