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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:
" F8 A0 L, e# t: X" e30.1 Pressure test at high temperature4 p4 H* e ?/ E% p4 B
The specimens are tested by means of the apparatus shown in figure 41. This apparatus has3 ?. k z. k! l7 J, ]1 P6 Z
a rectangular blade (see figure 41a) with an edge 0,7 mm wide, to be used in the case of
) d7 t% K3 Z) t: s8 n; nround pins, or a blade having a round shape (see figure 41b), with a diameter of 6 mm and an3 E$ U+ X9 Y2 u M( k. J% z$ e6 P
edge of 0,7 mm, in other cases.8 n+ X! X( ? {
The specimens are placed in position as shown in figure 41.
/ ]$ z6 v! v7 n5 nThe force applied through the blade is 2,5 N.
* I" R/ \* \0 W5 a7 \/ LThe apparatus, with the specimen in position, is maintained for 2 h in a heating cabinet at a
^2 w) y' O" |$ n! G7 n6 ktemperature of (200 ± 5) °C.
; L; Q3 w9 ^$ S ^" j, K7 [The specimen is then removed from the apparatus and, within 10 s, cooled by immersion in" P) O# z% a( X" Y9 d
cold water.% S: U! ^' o" m6 p, Z
The thickness of the insulation remaining at the point of impression is measured and shall not3 t3 f; U+ D% @) b3 y; F# E) j
have been reduced by more than 50 % of its original value measured at the start of the test.
! y# X/ d& P, Z" v/ X9 sNOTE The values 2,5 N and (200 ± 5) °C are provisional.
/ [/ @& c# |5 ?+ F5 c' w6 B5 A$ R6 V& F: f( H6 N
当时我们采用PC6485的材料做, 结果是胶都融化了.5 Q4 x2 B+ a/ u0 g
" ~6 S4 v! S) S
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.! t! q5 W3 r9 L" P3 j% }9 O. S
/ F6 {% W7 y/ n0 D
谢谢各位了. |
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发表于 2008-7-18 10:48
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