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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:
- I" C" j: E0 h4 D. g+ x* r: ^30.1 Pressure test at high temperature! B$ i. D0 X" m% f# O5 C8 T1 `7 i. I
The specimens are tested by means of the apparatus shown in figure 41. This apparatus has: l8 ~5 `8 k# D( j+ @7 x
a rectangular blade (see figure 41a) with an edge 0,7 mm wide, to be used in the case of
" U0 Q- |, ~$ p' Q* _, Q# l" Tround pins, or a blade having a round shape (see figure 41b), with a diameter of 6 mm and an
- V8 y" j- z6 ]7 kedge of 0,7 mm, in other cases.$ e v, w+ y7 f1 ]0 [4 e
The specimens are placed in position as shown in figure 41.
# f0 y- x5 a9 e. x% f. L: k3 IThe force applied through the blade is 2,5 N.1 U) W, Z2 o, e5 B
The apparatus, with the specimen in position, is maintained for 2 h in a heating cabinet at a9 B% x; q, i) ~5 Y
temperature of (200 ± 5) °C.
2 T4 Z$ }; E, a' g+ E' h' uThe specimen is then removed from the apparatus and, within 10 s, cooled by immersion in
- n9 n, U: B# ?cold water.
# a/ D7 f- Z) i# Y0 M, d$ X, Z( HThe thickness of the insulation remaining at the point of impression is measured and shall not
1 Q3 i+ P0 E( E7 N p( Whave been reduced by more than 50 % of its original value measured at the start of the test.8 O9 H$ S( I. ]: J1 }
NOTE The values 2,5 N and (200 ± 5) °C are provisional.
9 E0 X5 ]3 h/ ^9 @; u% R/ ~; S( n# W% e' q! y G4 Q
当时我们采用PC6485的材料做, 结果是胶都融化了.
* u9 I: r U. T4 m: \( S k9 U% P& C; a: T) u0 e7 [
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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J! t' s8 Q: J# t7 J& ~/ y* Z谢谢各位了. |
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发表于 2008-7-18 10:48
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