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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:3 W, |, N" m' b& v; D2 I
IEC 61058-1(GB 15092.1), Cl. 8.9中有具体要求:6 `" q: m F3 P1 B- U
8.9 The required marking shall be legible and durable.6 c* z2 Z, ?! v' W" r9 f3 i
Compliance with the requirements of 8.1 to 8.8 is checked by inspection and ! L' ^0 H2 E/ h h
by rubbing the marking by hand as follows:
; H5 o9 _5 b) {' }( Oa) 15 back-and-forth movements in about 15 s with a piece of cloth soaked ) D. m4 n: D/ e( \0 e5 p& x
with distilled water, followed by
9 Y0 O% _' D% g0 Ub) 15 back-and-forth movements in about 15 s with a piece of cloth soaked
4 w, M7 X# g4 c( Bwith petroleum spirit.
5 d, a- D8 d8 Q7 D+ `. mDuring the tests, the soaked piece of cloth shall be pressed on the marking $ I* F0 D) @7 y+ }* i, r$ d$ n1 g ^" h
with a pressure of about 2 N/cm2.
2 o. K0 O7 ? ~( _: E* ~3 D8 `After these tests, the marking shall still be legible.5 B9 m) u# G- E/ }( G8 j8 P+ A
9 `4 Y2 Q H5 Z4 K
如测试通不过,是不符合标准要求的。 |
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