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Covers, shades and similar parts not having an insulation function and which do not
- S# h; V+ e( @$ owithstand the 650 °C glow-wire test of 13.3.2 shall be adequately spaced from any heated part6 C; X* R* T$ o; P) I+ H
of the luminaire which could raise the material to its ignition temperature. These parts made of
( [& R t& C6 I7 m) Xflammable material shall have suitable fastenings or supporting devices to maintain this spacing.
X) T7 Q6 X8 }& P, u* I% }& _) {The spacing from heated parts mentioned above shall be at least 30 mm, unless the material is2 Z) H- O# {" d7 V h
protected by a screen spaced at least 3 mm from the heated parts. This screen shall comply. L' J; c9 k& P# H1 }
with the needle-flame test of 13.3.1, shall have no holes, and shall have a height and a length
* S8 j7 c1 k! u' k* f" bat least equal to the corresponding dimensions of the heated parts. A screen is not required in
8 M/ X' r/ q+ }5 E' O! ncases where the luminaire provides an effective barrier to burning drops |
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发表于 2012-11-6 21:04
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