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| |  DSH 866
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: y0 h' o! c- F1 x/ |" x1 W" j | Flammable materials" C( Z8 ]9 \0 x4 J) E& u6 t
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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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Question:: w6 I, Z q& |. p4 d' q* i
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
: ^% I+ q/ ~" c7 I& a2 ?2 omaterials. 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.% h: \- k& R; E! X4 r' I4 z
Decision:
% e5 o' x4 s- E/ eAs the ignition temperature is not known over the life time, the ignition temperature of the relevant material shall not be considered.# \* T& ?5 z" l! m
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发表于 2012-9-5 14:41
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