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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: J: ^8 U) K/ N8 g, E
IEC 61058-1(GB 15092.1), Cl. 8.9中有具体要求:) n, y# W+ F2 A4 U, R. F- o' j
8.9 The required marking shall be legible and durable.
6 ]9 ]! k8 k, cCompliance with the requirements of 8.1 to 8.8 is checked by inspection and
3 _0 d; L2 F' h8 _by rubbing the marking by hand as follows:
: ?; M, v& ^$ ~) ra) 15 back-and-forth movements in about 15 s with a piece of cloth soaked
" V1 a) d, G7 X' M6 w/ B0 e* J! Bwith distilled water, followed by
& B9 I/ s# I( ^$ y7 Bb) 15 back-and-forth movements in about 15 s with a piece of cloth soaked
4 b: U: Z5 X: n* ^" c0 gwith petroleum spirit.7 B/ v3 d5 V) C& z
During the tests, the soaked piece of cloth shall be pressed on the marking ! I( m# t6 l( ~
with a pressure of about 2 N/cm2.; v2 G* z# ]) P8 P* z( V
After these tests, the marking shall still be legible./ i2 U/ N6 L! q8 P
: A6 [% n/ L# P1 H* v3 c6 }! {
如测试通不过,是不符合标准要求的。 |
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