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sunny.yang 发表于 2019-6-25 16:20" n3 t3 d( H/ z* O' b
这里不是说V-1 可以吗' V0 I" u, @# d5 R
comply with the following flammability requirements: u+ P, U% B4 Y: y
requirements of the re ... 1 s* @! u3 D4 {( k
V-1是有前提条件的。距离需要满足。
) l$ `. p) R0 w. M6.4.8.4 Separation of a PIS from a fire enclosure and a fire barrier6 {" F6 I8 a: ?: g, [4 ]* ~
A fire enclosure or fire barrier made of combustible material shall:
0 d( k" w: S3 H– have a minimum distance of 13 mm to an arcing PIS; and
5 p/ W6 |) [6 Y0 M; z) O8 w5 n– have a minimum distance of 5 mm to a resistive PIS.4 j7 |0 Z4 P2 z- U3 r# W; N
Smaller distances are allowed provided that the part of the fire enclosure or fire barrier within, M4 a4 \0 G- X0 K0 B; C9 \# |' @/ Y
the required separation distance complies with one of the following:5 D6 ?2 `2 j* E/ ]9 K/ _9 O
– the fire enclosure or fire barrier meets the needle-flame test according to& N" f2 k w2 X3 x
IEC 60695-11-5. Severities are identified in Clause S.2. After the test, the fire enclosure; q' n5 b- N, J" \& p, L) t
or fire barrier material shall not have formed any holes that are bigger than allowed in
" e2 f5 L1 F7 U7 m1 M6.4.8.3.3 or 6.4.8.3.4 as appropriate; or
5 v8 t# u( q+ j1 F- ?" z& M– the fire enclosure or fire barrier is made of V-0 class material. |
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