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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:5 X3 _4 c, f8 G) w4 ?
IEC 61058-1(GB 15092.1), Cl. 8.9中有具体要求: X& R3 I4 L {2 `+ C S
8.9 The required marking shall be legible and durable.- H# s4 M& V7 S- I" {7 s/ s
Compliance with the requirements of 8.1 to 8.8 is checked by inspection and
8 s; }; t/ o& m1 H* q zby rubbing the marking by hand as follows:2 a7 W! m9 U- r; U% j N6 o$ K
a) 15 back-and-forth movements in about 15 s with a piece of cloth soaked , n j. Q* D& I6 o3 B
with distilled water, followed by D& \4 W; W, m, U1 C: I, n
b) 15 back-and-forth movements in about 15 s with a piece of cloth soaked
$ z' W" l5 T; w0 s% r- o( \3 Mwith petroleum spirit.+ t& v1 E' L+ P8 z" y) x
During the tests, the soaked piece of cloth shall be pressed on the marking ' @ G, O$ E: v1 g
with a pressure of about 2 N/cm2.
& H- l) J( k! T# A0 sAfter these tests, the marking shall still be legible.0 v; ~" P& |9 ]. R) @
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如测试通不过,是不符合标准要求的。 |
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