|
本帖最后由 passagere 于 2017-6-19 17:24 编辑
6 e; f7 D% Q' p Hralf 发表于 2017-6-19 10:57 3 C+ D% n& O6 c' j' t
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 ...
& ]4 P P( X! f( H2 C4 l2 s前辈,谢谢你的信息!
, }. W4 C9 w" H9 H* X I7 S2 h3 @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:; H# K- Z8 E" x2 H, x/ W& l
7 J5 E; F1 i7 Q5 |$ N( v9 h1 b
条款13.3.1:
! I5 |* i, M+ Y9 ]1 |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. * Y3 ]- k' S) ^/ Q/ k/ ^ A3 n
2 |7 b5 J8 [( @: q& N' [
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. % f( i/ M7 ~: h( w" B
2 @$ d- h' Q' k$ R) u6 bThe requirements of this subclause do not apply in those cases where the luminaire provides an effective barrier to burning drops. 3 B, S* g1 g( j! a! q) w$ R
' l9 T( @* ?) v' X9 T7 s g' ^决议内容:0 P9 j6 V$ {# X+ H |0 o) R
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?
$ i" Y) y2 X, P2 l( k4 P1 f# a1 N1 C6 }& J0 \) O' n0 @% N
Decision:; O0 B; O1 l) q) `& k4 Y4 A4 _9 U
Needle-flame test and glow-wire test (650°) are required.
" t) A9 j% t' z! Y: I p
, K) Q. v* C0 j" j9 A! Y
# M4 _" G8 m' D8 |/ o, o 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。。. W/ A* G" L% a( a3 k! L
|
|