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| |  DSH 866
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7 x( S5 P+ m% H | Flammable materials
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| 60598-1(ed.3);am1 & 60598-1(ed.4);am1 & 60598-1(ed.5) & 60598-1(ed.6);am1 & 60598-1(ed.7)% c- w( u5 N0 ~2 [ b! p
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Question:
3 h9 P' O( n+ z1 C8 J1 V; @1 JCovers / shades and similar parts, which cannot withstand the 650°C glow wire test, shall be adequately spaced from any heated part that could raise the material to its ignition temperature. Generally the temperature of the lamp or the ballast / transformer will not rise the material to its ignition temperature, because the maximum temperature of the outside of a (compact) fluorescent lamp or small incandescent lamp is simply too low to do so. Besides there is a difference between the flash-ignition temperature of
& J: S. \2 v1 Y+ p/ t3 u rmaterials. Practical example is a lighting chain with plastic decorative cover, spaced about 15 mm from the lamp. The maximum temperature on the outside of the lamp (measured during the bridging test) was 180°C and the ignition temperature of the relevant material is much more than 180°C.) D7 Y9 p5 n! b1 S( @
Decision:
9 B+ `8 h! ~. f* ~As the ignition temperature is not known over the life time, the ignition temperature of the relevant material shall not be considered., B* Q" d+ B* _ a( Z, s: }! O6 W
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发表于 2012-9-5 14:41
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