|
|

楼主 |
发表于 2017-6-19 17:22
|
显示全部楼层
本帖最后由 passagere 于 2017-6-19 17:24 编辑
, l! E- A6 }4 E* ]ralf 发表于 2017-6-19 10:57 / N% b5 |$ y& q7 @8 A
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 P( X/ i& x1 w9 ^前辈,谢谢你的信息!# O8 w( E6 g# |: K" [1 R
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:
o1 T5 D2 T) k' K% q( W
& R* \$ F, B% l' q# I- F i条款13.3.1:
- V7 Y$ D+ Z6 R4 M9 G9 U- c4 S13.3.1 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. 2 f8 ]5 g& O* T& S* e
5 M2 \: l$ b) w2 W
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. $ @! d) h! j6 L: `
2 A7 Z( n- w; p: nThe requirements of this subclause do not apply in those cases where the luminaire provides an effective barrier to burning drops. 2 G5 s1 a' S" V' l
1 K7 Z1 j" i6 `+ z
决议内容:7 Q/ I$ }" A/ a9 ~
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? $ e) M) Y3 v3 B) V0 k% o# D6 V
% w; P" E, }5 }$ h; k
Decision:. u4 z b& v- {2 q
Needle-flame test and glow-wire test (650°) are required. $ l4 B3 T. b1 H, G
8 n* U* N- h4 o: c6 g- x* a+ ?. }
* V4 o1 ?1 k1 S7 L* ?
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。。
$ J; r7 t, H2 U9 B0 ]) |* W2 B u& p |
|