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| |  DSH 866
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2 ^5 g0 E8 t' B9 k5 W | Flammable materials4 `) P9 ^# u8 x/ r q7 `' g; j% k
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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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; m5 R2 U; A; o% `Question:
& r7 s5 C+ E* a- Q2 @7 DCovers / 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! l# f* U- O: c% y$ U, S8 G! v
materials. 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.8 G( c; Y ~0 S' k v9 ~" v
Decision:
( z1 P! g( X% `$ LAs the ignition temperature is not known over the life time, the ignition temperature of the relevant material shall not be considered.
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发表于 2012-9-5 14:41
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