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sunny.yang 发表于 2019-6-25 16:20
/ A1 k' q- [% f9 }. k- `这里不是说V-1 可以吗! l3 V; T( C8 Y% V% M# ^
comply with the following flammability requirements:
; Q7 D: T3 H( J+ lrequirements of the re ...
# X9 `9 P6 e5 J" {" yV-1是有前提条件的。距离需要满足。" i* [# r* l) y! i* F/ d' {. m* X3 q
6.4.8.4 Separation of a PIS from a fire enclosure and a fire barrier
s: X( D$ u Z; E6 v: YA fire enclosure or fire barrier made of combustible material shall:
1 w( b; ~- e7 Z" E– have a minimum distance of 13 mm to an arcing PIS; and6 c% P; N; B: E# ^
– have a minimum distance of 5 mm to a resistive PIS.- `3 T# s8 S3 C4 u8 g) z# i
Smaller distances are allowed provided that the part of the fire enclosure or fire barrier within
; }2 P/ y! A/ Y6 g7 p0 othe required separation distance complies with one of the following:2 W7 q( d M3 _; K* Q9 y+ ?: Y3 ?
– the fire enclosure or fire barrier meets the needle-flame test according to
& t" O$ J. H5 F6 t9 PIEC 60695-11-5. Severities are identified in Clause S.2. After the test, the fire enclosure- p- M# K5 P* G9 a6 g
or fire barrier material shall not have formed any holes that are bigger than allowed in+ F8 \0 C' X! Z4 i
6.4.8.3.3 or 6.4.8.3.4 as appropriate; or
& S3 y. s5 L4 ^) d3 @, ?1 E' V– the fire enclosure or fire barrier is made of V-0 class material. |
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