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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:% Q/ e2 w" R1 Z4 z
30.1 Pressure test at high temperature5 g2 y" M/ k7 ^" h6 m9 k, q
The specimens are tested by means of the apparatus shown in figure 41. This apparatus has
, T$ g1 t" W$ W- M% X0 x; ka rectangular blade (see figure 41a) with an edge 0,7 mm wide, to be used in the case of
* M9 w% m) \: [3 |6 N+ q. r' v6 }round pins, or a blade having a round shape (see figure 41b), with a diameter of 6 mm and an* S) `5 I! A* F7 G8 Q+ f2 `
edge of 0,7 mm, in other cases.
+ y2 L3 N `2 g- [The specimens are placed in position as shown in figure 41.
! `3 X* n, |! B1 z# h: XThe force applied through the blade is 2,5 N.# O, j- J' l9 d$ P$ T2 ^) O1 y0 y
The apparatus, with the specimen in position, is maintained for 2 h in a heating cabinet at a# L" a) I) k% S* Q; g5 y9 O
temperature of (200 ± 5) °C.4 s. O' }: h5 B+ e- t7 R* y2 T
The specimen is then removed from the apparatus and, within 10 s, cooled by immersion in% Y1 l. n% i0 b
cold water.$ o$ ]8 H2 P( z* C: E
The thickness of the insulation remaining at the point of impression is measured and shall not/ ?7 n1 d. a, d' _# k+ O
have been reduced by more than 50 % of its original value measured at the start of the test.: G/ o6 T* [) I! L, F6 D8 ~ s
NOTE The values 2,5 N and (200 ± 5) °C are provisional.& e7 w- F9 z" k; Z6 I6 u! U
8 |! m8 N+ Z: p$ Q3 r/ x" e
当时我们采用PC6485的材料做, 结果是胶都融化了.
" x& t3 s2 O3 V- ]% U
/ Q3 m: S, O! }" L5 t3 I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.0 a# f! ?$ e: f4 Q5 b. C0 c
, K- z" Z1 T/ w c谢谢各位了. |
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发表于 2008-7-18 10:48
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