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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:
- l; _! ], ~+ c8 oIEC 61058-1(GB 15092.1), Cl. 8.9中有具体要求:
: v* P3 I1 ~4 A `/ `. k0 Y7 U8.9 The required marking shall be legible and durable." z3 R# b+ ^! d
Compliance with the requirements of 8.1 to 8.8 is checked by inspection and 4 p5 l7 u8 B2 J }; B
by rubbing the marking by hand as follows:
, b5 v9 }- c( d: v8 Z) u' Ja) 15 back-and-forth movements in about 15 s with a piece of cloth soaked
. Z3 `5 ^5 ?4 e0 i4 \" Cwith distilled water, followed by
~3 Q# m1 S! d0 wb) 15 back-and-forth movements in about 15 s with a piece of cloth soaked % ^( S- ^/ w, G( A% Q p
with petroleum spirit.
8 D& m, A1 v G- Z1 S0 o4 XDuring the tests, the soaked piece of cloth shall be pressed on the marking . S# S% Y4 T, m
with a pressure of about 2 N/cm2.% H" k/ I0 B3 {7 a
After these tests, the marking shall still be legible.
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如测试通不过,是不符合标准要求的。 |
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