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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:8 \0 [' @* T; l6 {; i% [
30.1 Pressure test at high temperature, p8 e* U, m# S( U- }. `* e
The specimens are tested by means of the apparatus shown in figure 41. This apparatus has
( r! P% D0 ^+ B( f, A3 v& E5 ma rectangular blade (see figure 41a) with an edge 0,7 mm wide, to be used in the case of
8 m2 e% E D1 j `3 Jround pins, or a blade having a round shape (see figure 41b), with a diameter of 6 mm and an4 S: h4 ], c% o! p* R" u( G
edge of 0,7 mm, in other cases.: N" K3 x6 O* i0 k
The specimens are placed in position as shown in figure 41.4 T& p* b3 I" |0 x
The force applied through the blade is 2,5 N./ F" L) `& x% v& [# z+ u ]* d
The apparatus, with the specimen in position, is maintained for 2 h in a heating cabinet at a6 N) p" C3 B' z! H: K
temperature of (200 ± 5) °C.6 X" V; L) d- J% X8 d) R2 \; m/ Y
The specimen is then removed from the apparatus and, within 10 s, cooled by immersion in9 M% \# o! t! e- B: n/ Y
cold water.% L3 V& h& J: ~( b v9 n3 U
The thickness of the insulation remaining at the point of impression is measured and shall not
# y v/ E8 \+ ?; Q0 o- k, x+ ^* ? [have been reduced by more than 50 % of its original value measured at the start of the test.. [0 D0 i$ W" \% u D) B
NOTE The values 2,5 N and (200 ± 5) °C are provisional.
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当时我们采用PC6485的材料做, 结果是胶都融化了.7 ^# v& W K+ j& Y6 T
4 y, V# F$ b; ]* X1 }+ w
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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谢谢各位了. |
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发表于 2008-7-18 10:48
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