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不知道是不是这份264文件
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Standard: IEC 60598-1/1999
4 Y$ o0 i# ] D4 xSub clause: 4.15 0 w' o! k S) y( w* H8 f# Y
5 f2 c5 i- s: a0 tSheet N°: 264/03
( G$ \6 Y5 S# |6 x; \! R& QPage: 1(1) s! k6 A3 @% n! I$ i$ I
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Subject: Flammable materials
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Key words: 7 M. ~6 Z" t7 @) E( t
- Ignition
: p- t* J: Z C& L* ]# etemperature
- M2 C' u' e4 x! o- Life time
" z! x: g; J8 \9 W9 H- Glow wire test
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$ i# f, r2 F% m+ r; VMeeting:
, A6 {2 L% V# k% k( i s3 uOSM/LUM No. 19
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, q( j4 ~ h- \Item: 13.1.9 - P) s+ [. [/ `9 h8 R9 m
Question:
b: J; P! F+ y; N% x" q Covers / shades and similar parts, which do not withstand the 650°C glow wire test, 7 e- s$ c9 T7 |% t
shall be adequately spaced from any heated part that could raise the material to its : Y6 s- \) p) C, |
ignition temperature. Generally the temperature of the lamp or the ballast /
+ t' R' x0 o' k5 i% `transformer will not rise the material to its ignition temperature, because the maximum % G) Z% j, w% i: v: I% }, B7 H/ U
temperature of the outside of a (compact) fluorescent lamp or small incandescent
& ~+ K7 d7 k8 G7 P0 b$ v5 i/ q6 Ulamp is simply too less. Besides there is a difference between the flash-ignition
% X+ y2 ?( a1 ^temperature of materials. Practical example is a lighting chain with plastic decorative Y; R$ N* A8 z C5 v
cover, spaced about 15 mm from the lamp. The maximum temperature on the outside
/ z2 V: H# G, y' x# {! E0 iof the lamp (measured during the bridging test) was 180°C and the ignition 3 W- Y( }3 l* C1 E
temperature of the relevant material is much more than 180°C.
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+ X' T$ N# C! l% [Decision:
- @" @) h1 f) k# ~! HAs the ignition temperature is not known over the life time, the ignition temperature of
4 n) t2 ?! p: o: a4 a; a$ W, kthe relevant material shall not be considered. |
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发表于 2010-11-18 13:41
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