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Covers, shades and similar parts not having an insulation function and which do not0 H$ Z2 q+ ?/ ^( e" t
withstand the 650 °C glow-wire test of 13.3.2 shall be adequately spaced from any heated part
' p; ?* v) Z0 L$ R; n# R7 D$ hof the luminaire which could raise the material to its ignition temperature. These parts made of
; @; t* j( n2 v$ \' c8 E6 c1 Oflammable material shall have suitable fastenings or supporting devices to maintain this spacing.* H: B, F' q# ], u- G
The spacing from heated parts mentioned above shall be at least 30 mm, unless the material is& ^5 @7 {) B+ q6 V/ Y! F; Z6 t
protected by a screen spaced at least 3 mm from the heated parts. This screen shall comply1 G! p3 g2 w y
with the needle-flame test of 13.3.1, shall have no holes, and shall have a height and a length
8 s: q9 g ^, X7 J) k& aat least equal to the corresponding dimensions of the heated parts. A screen is not required in/ K4 L' i9 ^9 I% `* I2 C
cases where the luminaire provides an effective barrier to burning drops |
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