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本帖最后由 passagere 于 2017-6-19 17:24 编辑 3 A* _; b+ U W7 u1 v! A. @ n
ralf 发表于 2017-6-19 10:57
+ a+ g2 N* L+ N1 e0 M, {$ P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 ... 7 x+ K; ^, R' p# a
前辈,谢谢你的信息!3 _% p( p9 L C6 A7 E. u1 b
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:
% `6 {" ]" g0 |6 D# Y$ Y13.3.1 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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& C7 H1 r: o' e( H$ jThe 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.
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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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决议内容:5 W& z* C3 i( E' L
Question: 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?
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3 f0 I n+ c: A" X9 a' m5 s l7 HDecision:
0 k% {4 ^( ^, d) `4 S3 M3 }: d: {Needle-flame test and glow-wire test (650°) are required.
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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。。% g% p1 \) v% f6 L$ Y
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