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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:; w/ N6 Y9 }( K$ M! q% @& l2 b
30.1 Pressure test at high temperature
?& I/ X) X* L' |' f9 y' NThe specimens are tested by means of the apparatus shown in figure 41. This apparatus has
0 d% \3 F( R5 {* k: K8 S4 O, J; ?a rectangular blade (see figure 41a) with an edge 0,7 mm wide, to be used in the case of: @% n# b4 q& @4 c& o; R: h3 | J: ]
round pins, or a blade having a round shape (see figure 41b), with a diameter of 6 mm and an
* ?3 _4 v: ]1 H0 v4 R* uedge of 0,7 mm, in other cases.
* L; C1 ~& T; |2 y/ o8 G, VThe specimens are placed in position as shown in figure 41.
# @ J; T A( W: `$ u: bThe force applied through the blade is 2,5 N.
. }" }3 u2 F, x* S' jThe apparatus, with the specimen in position, is maintained for 2 h in a heating cabinet at a8 b Z1 z, p) ~/ f5 H8 \
temperature of (200 ± 5) °C.
5 X* Q2 v3 j! W" K* nThe specimen is then removed from the apparatus and, within 10 s, cooled by immersion in/ c, p4 \1 X0 K8 q4 i* B( U
cold water.
; M7 S) v" F- ]+ c t/ JThe thickness of the insulation remaining at the point of impression is measured and shall not
H7 M" e2 V1 m+ Jhave been reduced by more than 50 % of its original value measured at the start of the test.
+ `9 Z" G& s2 v0 ^$ I* U7 hNOTE The values 2,5 N and (200 ± 5) °C are provisional.
) S% Y! V, e% R5 C) ^
+ R* F" _& D" U+ b4 N9 c当时我们采用PC6485的材料做, 结果是胶都融化了.1 [1 N, l* \: v
' o3 {/ d& {* m; |" P6 ~4 ~1 f
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.
" C& [; `6 W5 `% S1 j8 j( O7 _# |1 c$ W% G0 S! ^2 T* O
谢谢各位了. |
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发表于 2008-7-18 10:48
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