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本帖最后由 passagere 于 2017-6-19 17:24 编辑 6 [5 q& C" [. o( }$ M% w. u/ |
ralf 发表于 2017-6-19 10:57
5 g( P/ F) _ [7 ^* f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 ...
. U& H% X1 _3 D7 w4 l) i. b前辈,谢谢你的信息!7 @) e. m) w' x5 S
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:+ z3 L9 v) y1 L
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; t# m9 K( i& ~8 _( S7 H13.3.1 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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& M; T, c2 h# LThe 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:
* a+ }2 |6 l) \' E( z5 A. ZQuestion: 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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Decision:% v% f! H6 Y" D/ Z
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。。
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