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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:
& _! p: W9 f2 I30.1 Pressure test at high temperature% x, @( o1 S' [& e6 ]6 O1 R
The specimens are tested by means of the apparatus shown in figure 41. This apparatus has
1 _- N: ^1 Y" K& z3 `6 | S3 Fa rectangular blade (see figure 41a) with an edge 0,7 mm wide, to be used in the case of4 {. l2 a) t4 r2 Y% F) Z
round pins, or a blade having a round shape (see figure 41b), with a diameter of 6 mm and an
& P/ }/ A' z2 N$ M5 F Iedge of 0,7 mm, in other cases.# g6 A+ e6 M) w+ q( T9 r6 B$ t
The specimens are placed in position as shown in figure 41.. f$ [6 L8 O. o1 W- t! f1 t
The force applied through the blade is 2,5 N.* \; |8 j; C' i1 ^1 S) S
The apparatus, with the specimen in position, is maintained for 2 h in a heating cabinet at a
% s# A7 Z2 ^: `temperature of (200 ± 5) °C.
2 ?) e2 z3 w" b* H4 [The specimen is then removed from the apparatus and, within 10 s, cooled by immersion in2 d# H! \& v. G2 I X
cold water.9 {6 y! |, d5 Q9 A+ H6 b
The thickness of the insulation remaining at the point of impression is measured and shall not; |' ^' O+ m/ Q! H
have been reduced by more than 50 % of its original value measured at the start of the test.( _) f& Z) x4 M% a4 d, ^6 E: _8 W
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." ?& v9 V+ C# H7 Q8 Y8 H# V
9 A7 V8 P0 k6 z! J' `8 p( J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) l6 B+ @4 W% z( E
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谢谢各位了. |
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