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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:
1 y! c. b6 w- d7 O1 o30.1 Pressure test at high temperature: N: u. r5 s7 l @+ n) \
The specimens are tested by means of the apparatus shown in figure 41. This apparatus has
5 C* S' Y7 Z" h& I/ H4 H* J7 F4 na rectangular blade (see figure 41a) with an edge 0,7 mm wide, to be used in the case of
$ Z9 m3 _9 m- }( Y0 x1 V: ?* tround pins, or a blade having a round shape (see figure 41b), with a diameter of 6 mm and an
( z7 k9 f3 X+ `, v4 Z; Fedge of 0,7 mm, in other cases.5 W; k! i3 ?1 k' v' Z! @; g
The specimens are placed in position as shown in figure 41.( N) g8 T# v( o& B, t
The force applied through the blade is 2,5 N.
1 V$ J1 ]! s: d1 ^" z7 T. ~The apparatus, with the specimen in position, is maintained for 2 h in a heating cabinet at a
' e P; n& ]( g' {8 rtemperature of (200 ± 5) °C.! e* t1 g2 h# h* s4 o
The specimen is then removed from the apparatus and, within 10 s, cooled by immersion in
' o2 s! y6 l; d: ]cold water.
1 x3 h8 F+ V' y( [# UThe thickness of the insulation remaining at the point of impression is measured and shall not
7 C' x- l1 R" `# b+ Rhave been reduced by more than 50 % of its original value measured at the start of the test.
1 M* L$ r1 ^7 b7 z, @NOTE The values 2,5 N and (200 ± 5) °C are provisional.1 h/ g' m" U1 m# |
7 B; t/ n; f. {+ q, n& U" j当时我们采用PC6485的材料做, 结果是胶都融化了.
( M" H6 j; k. u% h. [( H8 {4 ]0 g1 r( _# ^5 \6 N2 ^* 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.
7 T, |* W1 a5 d( }# A8 L7 L, J$ @/ f( e4 A; e: R
谢谢各位了. |
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发表于 2008-7-18 10:48
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