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sunny.yang 发表于 2019-6-25 16:20# ?# |7 N! R0 U0 [& N; t
这里不是说V-1 可以吗
# w+ ^! e0 U3 j. E$ }comply with the following flammability requirements:" k4 t" \+ `3 j! y$ W5 a, q
requirements of the re ...
V-1是有前提条件的。距离需要满足。9 V4 V" n9 K4 d3 l# {- j3 t# k
6.4.8.4 Separation of a PIS from a fire enclosure and a fire barrier2 r! E$ Z- Y$ B& ~# b
A fire enclosure or fire barrier made of combustible material shall:+ _: Y- C6 D1 k
– have a minimum distance of 13 mm to an arcing PIS; and
9 ~! J% |% |9 M" O– have a minimum distance of 5 mm to a resistive PIS.# [6 O/ j- M$ @; v& X
Smaller distances are allowed provided that the part of the fire enclosure or fire barrier within0 B" E8 j2 h9 Y$ z$ h, x
the required separation distance complies with one of the following:
% T/ k$ a+ x2 [" ^! \' L1 u– the fire enclosure or fire barrier meets the needle-flame test according to
: T1 @; f* g% k9 a. S* aIEC 60695-11-5. Severities are identified in Clause S.2. After the test, the fire enclosure1 M9 @ ~- u" }; [3 n0 i2 C
or fire barrier material shall not have formed any holes that are bigger than allowed in
! m; J: D3 d: ?) s6.4.8.3.3 or 6.4.8.3.4 as appropriate; or
% w7 E& o# U1 P9 T– the fire enclosure or fire barrier is made of V-0 class material. |
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发表于 2019-4-28 16:54
