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| |  DSH 866) a$ t. P+ a# t$ p$ ]& k# J& X
1 O7 q6 R/ \( B1 ~- r9 E | Flammable materials1 m9 `; c1 a7 ~3 X5 U
| 4.154 m' C0 L5 l0 g+ o
| 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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) Z3 y6 }1 Q8 K+ C! K
Question:
( t# ~" t% d. X% wCovers / 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 of6 u, A: f9 _/ \+ }
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. G( b4 q3 h" @% Q: O
Decision:3 `' J2 ], d* c
As the ignition temperature is not known over the life time, the ignition temperature of the relevant material shall not be considered.' Z5 C7 w: e. K5 V, X+ b
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发表于 2012-9-5 14:41
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