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| |  DSH 8664 F( l) J7 U& p6 B; H) Z& W2 Y$ t1 ?
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| 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)
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Covers / 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
# M( B$ Z7 Y2 T" _2 J* {' b1 umaterials. 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.) b9 l" Q! m$ f- w. N) ]- O
Decision:0 n0 m# U& [: E4 V& R) d" Q: D; P
As the ignition temperature is not known over the life time, the ignition temperature of the relevant material shall not be considered.: _. a+ r5 B% |7 Q6 X3 X
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发表于 2012-9-5 14:41
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