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sunny.yang 发表于 2019-6-25 16:20+ ]) Z* W, D1 U* t+ ^& m
这里不是说V-1 可以吗
5 `& [; _# `. y# d! {7 X& jcomply with the following flammability requirements:3 A3 r" F7 b0 r2 h' D# A
requirements of the re ... 8 u0 z6 p( [: u
V-1是有前提条件的。距离需要满足。% X( Q& Z2 `" \2 C& x$ `4 H# S" \
6.4.8.4 Separation of a PIS from a fire enclosure and a fire barrier$ o' y/ a+ G9 l& n
A fire enclosure or fire barrier made of combustible material shall:
/ c. H' ]! ~- W! `. @– have a minimum distance of 13 mm to an arcing PIS; and
/ P0 J+ h+ D7 N8 W– have a minimum distance of 5 mm to a resistive PIS.
4 `" a! `9 i1 \. CSmaller distances are allowed provided that the part of the fire enclosure or fire barrier within
7 x" R% m% s+ w4 t5 V5 [% }. }the required separation distance complies with one of the following:8 S+ u1 u# U- G u* C" d- [; U7 V
– the fire enclosure or fire barrier meets the needle-flame test according to
' A0 P; R, z" EIEC 60695-11-5. Severities are identified in Clause S.2. After the test, the fire enclosure
* E+ i2 y8 G$ k- ^3 Xor fire barrier material shall not have formed any holes that are bigger than allowed in
3 b% @9 e; U. I: }, J% G6.4.8.3.3 or 6.4.8.3.4 as appropriate; or" G" B+ V) I% W2 C( R' W& w
– the fire enclosure or fire barrier is made of V-0 class material. |
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