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不知道是不是这份264文件$ ?7 ]5 l) h8 `/ N7 e$ O6 q
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Standard: IEC 60598-1/1999
- W# O9 q2 s& [0 O5 d. B4 sSub clause: 4.15 8 F9 ~& ^; D8 Z5 K6 J( _; F! T0 c
1 V# D; \3 T* N% H5 D
Sheet N°: 264/03 2 I- x- j* L/ l1 f) i! Y" F7 g4 }
Page: 1(1) ?) @' g% d6 F K/ a
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Subject: Flammable materials
8 G* U1 G/ H( U8 z9 x# Q
7 F! _9 Z! y8 q# XKey words:
3 @4 I9 q1 X# c& b3 ?+ H, {- Ignition
, B3 U5 x: U; E8 vtemperature % P/ u( W4 `# i; _* b
- Life time
/ ^3 d- ^0 b2 V4 C3 Z$ j- Glow wire test
0 {; r3 v1 {5 }' q# ^6 _& C
& B0 u2 V. J0 I( I% Y( T0 q' ^- oMeeting:
m9 [2 k0 F' |2 q% E4 aOSM/LUM No. 19 ' S7 E+ e7 h) d. G
; w J- R) @: a2 t* a* L! I3 DItem: 13.1.9
7 i* M4 J2 h) hQuestion:
( R; l% u: _: b |& X3 o/ D* q Covers / shades and similar parts, which do not withstand the 650°C glow wire test, / ?9 n0 ~; z" g8 [: a
shall be adequately spaced from any heated part that could raise the material to its 7 k- q/ o7 X6 A) L9 l$ I: E
ignition temperature. Generally the temperature of the lamp or the ballast /
# e5 q! ^' }, b- N0 W# s) \. Utransformer will not rise the material to its ignition temperature, because the maximum , W' @* T6 b# n
temperature of the outside of a (compact) fluorescent lamp or small incandescent & d/ h' f% a8 [$ ]" Q2 q( Y
lamp is simply too less. Besides there is a difference between the flash-ignition
0 o8 B+ h, D" G. Ltemperature of materials. Practical example is a lighting chain with plastic decorative ' ?/ w% u+ p5 k2 q9 e
cover, spaced about 15 mm from the lamp. The maximum temperature on the outside ' G: R9 k, o) k. y
of the lamp (measured during the bridging test) was 180°C and the ignition
1 \, [/ J. b( ]$ i1 ?1 w3 vtemperature of the relevant material is much more than 180°C.
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. ^6 @$ w q9 W5 p* p2 aDecision:
2 u9 m3 s5 b- w& Q" aAs the ignition temperature is not known over the life time, the ignition temperature of . D% z6 X, v% G. [
the relevant material shall not be considered. |
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发表于 2010-11-18 13:41
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