|
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:
|% l3 f& q0 U" Q' r/ E4 [7 _30.1 Pressure test at high temperature2 q: Y5 K6 e; D- V* t4 M/ v: Y! P
The specimens are tested by means of the apparatus shown in figure 41. This apparatus has5 i; B7 X/ S0 H+ w/ n9 h7 e. J
a rectangular blade (see figure 41a) with an edge 0,7 mm wide, to be used in the case of
( j% Y! ~7 C: e8 J6 u9 R/ kround pins, or a blade having a round shape (see figure 41b), with a diameter of 6 mm and an
- @' W6 C( J( a8 W* V% B$ R0 @edge of 0,7 mm, in other cases.* @" P7 x- g+ M; v, I4 J8 m
The specimens are placed in position as shown in figure 41.& J7 I6 l4 W# P! D9 U
The force applied through the blade is 2,5 N./ H/ q5 T1 c* j
The apparatus, with the specimen in position, is maintained for 2 h in a heating cabinet at a2 y) z9 T/ I- P$ j" ]/ Q( k
temperature of (200 ± 5) °C.
4 R; _+ g( v5 B6 TThe specimen is then removed from the apparatus and, within 10 s, cooled by immersion in
$ z) `* ?9 t' W, Rcold water.
. Z7 ~5 H2 |7 ]6 xThe thickness of the insulation remaining at the point of impression is measured and shall not- ]3 h3 T! x0 h; ]; `( T
have been reduced by more than 50 % of its original value measured at the start of the test., H6 u9 k( b6 ?" z; \) r3 X0 {
NOTE The values 2,5 N and (200 ± 5) °C are provisional.
" _7 q, E& h# s, c; r
% Q: {# s+ P6 [7 s/ d% W& W: E当时我们采用PC6485的材料做, 结果是胶都融化了.
/ a0 L' R) }- d- a* @; B, b0 \ g" C6 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.
6 r- b" Y4 f0 e: J" u( C$ K% a2 b$ W/ K9 V
谢谢各位了. |
|