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sunny.yang 发表于 2019-6-25 16:20
3 o! O7 a: |+ Q0 M8 O, K这里不是说V-1 可以吗& w/ O: w" ~/ }: }5 y& A% u( }
comply with the following flammability requirements:+ n) w$ c( G5 s) Z# U( U' e; c
requirements of the re ...
$ K# `, I& v" H7 t% Z9 lV-1是有前提条件的。距离需要满足。; [, u9 N$ S9 F0 a. o
6.4.8.4 Separation of a PIS from a fire enclosure and a fire barrier
: w) T7 O1 s( z6 I' N! ^A fire enclosure or fire barrier made of combustible material shall:; R _ n1 h" X4 C& L) b( k
– have a minimum distance of 13 mm to an arcing PIS; and ^; T X3 r }7 D* s; u0 X" n
– have a minimum distance of 5 mm to a resistive PIS.$ o; p6 }# T2 {7 ~2 l$ ]
Smaller distances are allowed provided that the part of the fire enclosure or fire barrier within8 u9 @0 e. [' r5 ]8 n8 i/ w
the required separation distance complies with one of the following:
, D8 g" }8 V8 ^5 y$ B/ e– the fire enclosure or fire barrier meets the needle-flame test according to0 S5 k! _* f6 Y, A% d- _
IEC 60695-11-5. Severities are identified in Clause S.2. After the test, the fire enclosure
0 B+ j6 x/ ~5 Bor fire barrier material shall not have formed any holes that are bigger than allowed in
$ u' B& ~2 T H) F- L$ L( r8 }6.4.8.3.3 or 6.4.8.3.4 as appropriate; or
, u( ^+ p! i8 R E% D3 Y) B5 v2 p3 N– the fire enclosure or fire barrier is made of V-0 class material. |
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