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开关上的0/1标识丝印(模压不算)是需要进行汽油擦拭试验,理由是:
0 V5 I, c# X/ X3 z( kIEC 61058-1(GB 15092.1), Cl. 8.9中有具体要求:! G/ b0 f2 O/ k1 h5 B
8.9 The required marking shall be legible and durable.7 E* O2 L) N: f+ B% g$ a
Compliance with the requirements of 8.1 to 8.8 is checked by inspection and 5 A& Z: ~ B7 h8 e
by rubbing the marking by hand as follows:! v: z O, I/ E6 @
a) 15 back-and-forth movements in about 15 s with a piece of cloth soaked
$ O' V% |' g. D+ ewith distilled water, followed by
0 z7 g2 ^9 {; i# S0 Xb) 15 back-and-forth movements in about 15 s with a piece of cloth soaked ; E4 m2 R7 M, F7 M2 m4 E: e
with petroleum spirit.4 X F3 h& T4 {3 ~$ {
During the tests, the soaked piece of cloth shall be pressed on the marking , b: Z4 [# T, ]3 A; b2 ^
with a pressure of about 2 N/cm2.& x8 `0 m! s' O
After these tests, the marking shall still be legible.: T- A8 ?* U! z4 o1 ^3 W
6 Q" c4 y& v5 y/ x- ]如测试通不过,是不符合标准要求的。 |
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