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发表于 2017-6-19 17:22
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本帖最后由 passagere 于 2017-6-19 17:24 编辑
$ \/ @$ e0 X9 s% xralf 发表于 2017-6-19 10:57 0 w P+ }1 `* O* Z- {) d m
从决议本身,并不能看到说接受外壳具有足够防火等级,内部器件可不做针焰;问题本身标准都没有出处,而后面 ...
& c% d t# z& A3 p4 X6 I前辈,谢谢你的信息!
8 X2 F; o* `! ^" u: F前几日,论坛网友提供了一项决议,DSH 0930,由于软件限值,无法提供截图,我把内容写一下,它是和60598的13.3.1条款相关的:
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条款13.3.1:
' m) b7 W% [, q z& x13.3.1 Parts of insulating material retaining current-carrying parts in position shall withstand the following tests. The parts to be tested are subjected to the needle-flame test of IEC 60695-11-5, the test flame being applied to the sample for 10 s at the point where the highest temperatures are likely to occur, measured if necessary during the thermal tests of Section 12.
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The duration of burning shall not exceed 30 s after removal of the test flame, and any burning drop from the sample shall not ignite the underlying parts as required by IEC 60695-11-5. 8 W3 o9 {3 _1 Z! N# e( u+ g
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The requirements of this subclause do not apply in those cases where the luminaire provides an effective barrier to burning drops.
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) J9 E" L8 J: O5 b1 y) y0 |6 yQuestion: If an effective barrier to burning drops is provided, the needle-flame test is not applied on parts of insulating material which retain current-carrying parts in position (e.g. terminals). Could a plastic enclosure of luminaire providing a barrier to burning drops and having passed the glow-wire test at 650°, be regarded as an "effective barrier" or should such part withstand the needle-flame test? 4 q9 @! n1 T1 N7 t
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Needle-flame test and glow-wire test (650°) are required. ! ^. ^5 G( ?. K6 V0 l, X, b$ z
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上面这句是说外壳可以当barrier,还是说端子必须满足针焰和灼热丝650呢?之前我理解是允许外壳当做barrier的,今天看看大家的回复,有些不淡定了。。
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