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Covers, shades and similar parts not having an insulation function and which do not6 y) E$ D6 O" c9 E/ l8 i3 W
withstand the 650 °C glow-wire test of 13.3.2 shall be adequately spaced from any heated part L5 P8 U* j" y3 r/ Z2 s
of the luminaire which could raise the material to its ignition temperature. These parts made of
: M1 ]7 p h/ b; Kflammable material shall have suitable fastenings or supporting devices to maintain this spacing.3 G: x% t$ u$ X: ^; c% d3 R
The spacing from heated parts mentioned above shall be at least 30 mm, unless the material is! n5 _& k, k' U5 t" n
protected by a screen spaced at least 3 mm from the heated parts. This screen shall comply! s* O8 g5 g" E; r: x! o: P
with the needle-flame test of 13.3.1, shall have no holes, and shall have a height and a length
( b2 y3 ^+ H' s2 p& b+ Pat least equal to the corresponding dimensions of the heated parts. A screen is not required in
. x8 y$ {0 } H% x! P0 D( Qcases where the luminaire provides an effective barrier to burning drops |
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