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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:( K+ f% t7 k9 Z* i
30.1 Pressure test at high temperature/ V, k$ p$ O6 R8 t, t8 n' q
The specimens are tested by means of the apparatus shown in figure 41. This apparatus has
' [" c4 P2 \" Ha rectangular blade (see figure 41a) with an edge 0,7 mm wide, to be used in the case of: D9 H8 s8 V( y. S
round pins, or a blade having a round shape (see figure 41b), with a diameter of 6 mm and an8 `) }8 m! z% [* z/ q
edge of 0,7 mm, in other cases.
4 U7 g+ O6 f5 F8 y5 p+ yThe specimens are placed in position as shown in figure 41.
1 p9 k) Y" E) T; y" ^# e: R2 e7 lThe force applied through the blade is 2,5 N.% a/ F2 q! t6 O6 e
The apparatus, with the specimen in position, is maintained for 2 h in a heating cabinet at a
4 T [- Z' O/ F/ G+ M+ A1 F: v- xtemperature of (200 ± 5) °C.
2 Y8 Q! e# F: C6 q2 hThe specimen is then removed from the apparatus and, within 10 s, cooled by immersion in
5 ^) l, x% h& X! `9 t7 V7 {cold water.. ~; V- C, X5 B) l$ K
The thickness of the insulation remaining at the point of impression is measured and shall not; \; }0 f* n( T# y7 ?
have been reduced by more than 50 % of its original value measured at the start of the test./ z9 \& ^% X' s! Y. r" w9 P! P
NOTE The values 2,5 N and (200 ± 5) °C are provisional.* M& C4 o# H1 K( v, s8 B
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当时我们采用PC6485的材料做, 结果是胶都融化了.2 U G7 h$ V: D. h0 {
" P5 o# e+ q( W( j/ B
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.
: p$ [" } q" q7 z( a9 p5 u+ ^* \5 U! b2 A
谢谢各位了. |
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发表于 2008-7-18 10:48
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