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Covers, shades and similar parts not having an insulation function and which do not0 G4 ]2 R# k1 i7 `( q3 H
withstand the 650 °C glow-wire test of 13.3.2 shall be adequately spaced from any heated part
7 P% M& ~% S- _' h5 Eof the luminaire which could raise the material to its ignition temperature. These parts made of( B% S/ }$ |' k8 H: A
flammable material shall have suitable fastenings or supporting devices to maintain this spacing./ q' l9 U- @2 Z5 K. n
The spacing from heated parts mentioned above shall be at least 30 mm, unless the material is- b% X+ {; h! M4 b3 Q8 l" |5 [
protected by a screen spaced at least 3 mm from the heated parts. This screen shall comply
! T+ ~7 N u ^4 w# t6 ~& ~with the needle-flame test of 13.3.1, shall have no holes, and shall have a height and a length
" }. g" k8 r+ Uat least equal to the corresponding dimensions of the heated parts. A screen is not required in2 m S @) T- X7 v0 Z
cases where the luminaire provides an effective barrier to burning drops |
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