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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:) ]* ~9 F9 V @( N
IEC 61058-1(GB 15092.1), Cl. 8.9中有具体要求:
! v: k6 T( t/ c! l9 T$ E2 s/ L i$ L8.9 The required marking shall be legible and durable.
% a; f4 X4 S3 j$ T( S% ~. `5 I/ ACompliance with the requirements of 8.1 to 8.8 is checked by inspection and
5 w$ ^' w' h1 Kby rubbing the marking by hand as follows:
& m) d$ |! c2 l! |$ n% i: Za) 15 back-and-forth movements in about 15 s with a piece of cloth soaked
8 P4 V8 }7 L# D, }: w* d3 V- q6 ~( O( dwith distilled water, followed by
" J# q. ^5 ?+ r& Z& e A5 `9 eb) 15 back-and-forth movements in about 15 s with a piece of cloth soaked 0 Y( u" C+ g p$ O1 [ W% K0 r
with petroleum spirit.
$ i! K- I" e( |3 {During the tests, the soaked piece of cloth shall be pressed on the marking
- M1 p5 c( N/ [+ Twith a pressure of about 2 N/cm2.+ g2 V! B+ `5 z d' `% g
After these tests, the marking shall still be legible.4 }5 F2 J# ^: K ^# Z w9 k
) }, J- c( ^& b2 F' v. \
如测试通不过,是不符合标准要求的。 |
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