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不知道是不是这份264文件
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Standard: IEC 60598-1/1999
" o6 Q/ B* B+ h, B9 Y& E4 H2 Z& sSub clause: 4.15
% p' v* U. _( J1 J/ }9 g% B2 r * |& i5 m L% i
Sheet N°: 264/03
- H f; P. _6 cPage: 1(1) ( t! e: R! } t
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Subject: Flammable materials B# a: R8 J; e) J( o
$ G& F: ^- P9 }Key words: & Q- B" F7 @5 r6 L8 ~4 T
- Ignition
, ]( g0 S6 b/ \- V8 B. h. Stemperature
& b- a0 O4 z; Z$ a% b- Life time
6 H/ k/ s2 M7 i- Glow wire test ' ~; h5 e9 V, D+ C2 {
% D# X9 s) |1 \4 I# d, zMeeting:
/ y) q* n, [/ E$ y) S$ i! n8 {OSM/LUM No. 19 7 g* |# h# n8 T2 b
8 C0 |: q, |' r5 p& M
Item: 13.1.9
6 g; v; G) m# K5 o# t4 N! f R0 VQuestion:
D$ r- ^) {( g9 K7 t Covers / shades and similar parts, which do not withstand the 650°C glow wire test,
* L0 w6 w W% b( p" {% d. v* S& eshall be adequately spaced from any heated part that could raise the material to its & G! V A9 Z4 r; y
ignition temperature. Generally the temperature of the lamp or the ballast / ( U6 \6 j: f3 j- }: G: Z
transformer will not rise the material to its ignition temperature, because the maximum
/ l, z8 ]6 Q# P8 R! Ptemperature of the outside of a (compact) fluorescent lamp or small incandescent 8 A$ y4 N2 t% A9 Y* J0 Z
lamp is simply too less. Besides there is a difference between the flash-ignition ! ]; V' v" z0 V) h' D7 t" [6 R! b/ d
temperature of materials. Practical example is a lighting chain with plastic decorative
* t& q; @5 X$ l; P/ }3 k# n2 mcover, spaced about 15 mm from the lamp. The maximum temperature on the outside : F0 M; |5 n% y
of the lamp (measured during the bridging test) was 180°C and the ignition
4 d$ H9 z$ \* Q1 J5 ]( Z3 `temperature of the relevant material is much more than 180°C. . R9 O) F. r7 k7 I9 e: G
# i% [' H, e+ d, K0 [' I V, H4 h9 nDecision:
3 C) L3 U' I& F P: q, bAs the ignition temperature is not known over the life time, the ignition temperature of 1 S8 `* G9 Z4 j% m0 ?1 p/ K
the relevant material shall not be considered. |
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发表于 2010-11-18 13:41
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