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本帖最后由 passagere 于 2017-6-19 17:24 编辑
! e0 u U" k( h3 ^3 W- ^$ nralf 发表于 2017-6-19 10:57 ' S0 @ U) h9 r$ E% b# s
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 ...
9 `# N$ p5 k) Q前辈,谢谢你的信息!0 K1 |$ q* [$ q7 J- C5 }, X# P6 ~0 H
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:8 {. A3 E% @) b0 a
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条款13.3.1:8 m& C; H. D, q2 u T, C) {; K. v
13.3.1 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. . @' J b7 G1 x( {' P
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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. - C6 J; e# K# {' c* U+ {# a0 X
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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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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? * H z+ B' O4 K2 r
8 e R6 |7 m, j: N# dDecision:
! {( W% U1 U1 `, G2 U2 p8 ZNeedle-flame test and glow-wire test (650°) are required.
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7 U2 W* P9 c& } 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。。# |! W4 t" g; u- i
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