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Covers, shades and similar parts not having an insulation function and which do not3 w8 ], @+ N6 s# ^) V
withstand the 650 °C glow-wire test of 13.3.2 shall be adequately spaced from any heated part( A4 C% V" {* v J) K" ~! j1 }# e# C& _
of the luminaire which could raise the material to its ignition temperature. These parts made of& Y3 ^5 J5 ]: v$ x' ~$ T
flammable material shall have suitable fastenings or supporting devices to maintain this spacing.
% O8 z. M' Q+ Z0 y+ e# `, l# F% i3 \The spacing from heated parts mentioned above shall be at least 30 mm, unless the material is
- T# W# q8 f9 B7 \7 _4 qprotected by a screen spaced at least 3 mm from the heated parts. This screen shall comply
- T8 x7 d0 ?, y, j* @' y% s U: \: b% cwith the needle-flame test of 13.3.1, shall have no holes, and shall have a height and a length4 U; O+ u/ u) ]$ E5 g
at least equal to the corresponding dimensions of the heated parts. A screen is not required in% L4 M" E1 y, G% T! [* k
cases where the luminaire provides an effective barrier to burning drops |
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