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Covers, shades and similar parts not having an insulation function and which do not1 K z- Y$ a, v( O4 P
withstand the 650 °C glow-wire test of 13.3.2 shall be adequately spaced from any heated part
" a- A: z! a6 q6 Lof the luminaire which could raise the material to its ignition temperature. These parts made of
% V, [/ P! E7 K" l% r- Hflammable material shall have suitable fastenings or supporting devices to maintain this spacing.
: c9 o) T2 Y% p; Y" [: ~The spacing from heated parts mentioned above shall be at least 30 mm, unless the material is
1 s6 {7 d1 C# S5 F. ~protected by a screen spaced at least 3 mm from the heated parts. This screen shall comply
; H ~; G! u1 O' ^4 G5 G% iwith the needle-flame test of 13.3.1, shall have no holes, and shall have a height and a length
9 ]5 U- W1 z/ U4 J# M q$ o" kat least equal to the corresponding dimensions of the heated parts. A screen is not required in$ X; o0 w5 ~: Y1 l) x; X6 P8 H
cases where the luminaire provides an effective barrier to burning drops |
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