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sunny.yang 发表于 2019-6-25 16:20. d9 G2 P" ^+ h/ R' z, t
这里不是说V-1 可以吗% t$ t% V- j, i$ N3 a0 j i; U
comply with the following flammability requirements:/ l9 C, ]& s& i. i' I; Y
requirements of the re ... $ f6 n4 F4 B# A$ j- L% Y0 I0 L
V-1是有前提条件的。距离需要满足。0 l4 q# ]4 X) q, }8 H/ S
6.4.8.4 Separation of a PIS from a fire enclosure and a fire barrier- b( R; v; ^) J
A fire enclosure or fire barrier made of combustible material shall:
! ~, ^6 h2 S# M7 o8 k– have a minimum distance of 13 mm to an arcing PIS; and
8 t, H- z ]% f, k% c– have a minimum distance of 5 mm to a resistive PIS.
& V6 g) a4 p& S% d6 p. \Smaller distances are allowed provided that the part of the fire enclosure or fire barrier within& J! s6 @5 {2 X
the required separation distance complies with one of the following:
- w- q6 `; Z4 p* }/ ]: |( K– the fire enclosure or fire barrier meets the needle-flame test according to
" J q, W1 T7 m) Q4 k5 bIEC 60695-11-5. Severities are identified in Clause S.2. After the test, the fire enclosure
5 R! g- T/ Z9 g) y% ^+ {- Hor fire barrier material shall not have formed any holes that are bigger than allowed in6 B/ \1 O, S* e% {7 h7 a/ e
6.4.8.3.3 or 6.4.8.3.4 as appropriate; or# N7 W J/ Q8 Z; w+ R- x% [) L
– the fire enclosure or fire barrier is made of V-0 class material. |
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