9 D$ M7 Z9 d1 k- R2 m4.21.1 Because of the possible risk of lamp shattering, luminaires designed for tungsten halogen lamps and luminaires designed for metal halide lamps shall be fitted with a protective shield. For tungsten halogen lamps, the shield shall be of glass. Luminaires designed to be used with self-shielded lamps only are exempt from this requirement, but shall be marked with the appropriate symbol (see Figure 1). ( h. B) u3 I' V' \. oNOTE 1 Lamps needing a protective shield as part of the luminaire construction are supplied with an appropriate # C# `1 }- U1 z# _) d# B4 m# n4 _7 Icautionary notice or their packaging is marked with the symbol shown hereafter: - Z/ z: }) w% _) O* NNOTE 2 For lamps not needing a protective shield as part of the luminaire construction (self-shielded lamps) their 2 f* U' R3 B, ^. R; cpackaging is marked with the symbol shown hereafter: ! P) G' M5 D5 m0 ~2 l/ G9 Y: y' _6 D. m( E
4.21.2 Parts of the lamp compartment shall so be designed that particles from a shattering 9 r. d9 e9 T5 vlamp cannot impair safety.0 b1 M- n& \/ Q
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4.21.3 All openings in the luminaire shall be such that no parts of a shattered lamp can leave. W7 W/ j# Z) k7 |6 F, Y6 _! `* _1 f
the luminaire by a direct path (direct line of sight), including the rear of recessed luminaires.% J' a- W3 W8 U5 L: M. i
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4.21.4 Compliance with 4.21.1 to 4.21.3 is checked by inspection and by the following tests: 8 G, T9 F; [' j }– the protective shield shall comply with the impact test of 4.13.1 with the impact energy of $ C1 B7 Q: ?8 O1 x2 c( n! Y5 L8 C4 aTable 4.3 for fragile parts; / p+ Y! {9 D) g! u- O% R6 t– parts of the lamp compartment, if of insulating material, shall comply with the resistance to 1 d. ?0 |% [% D3 ^flame and ignition test of 13.3.2.2 X4 g1 ?* h' r* y) ?4 k3 s+ B
NOTE 1 This requirement is intended to improve safety by eliminating the hazards due to chance failure of a lamp) ~; T) p7 b, q. e! y# T( H
or incorrect application. Existing open luminaires not fitted with a protective shield do not necessarily present a0 J. m/ {! U9 j, ~. H
hazard.8 J7 i% b6 t% Z4 u1 {+ l
NOTE 2 The impact test of 4.13.1, which is performed from the outside, is regarded to be more severe than the 2 K; x8 _9 B; o% t: T( U" m5 zimpacts of glass particles. A specific test simulating the latter is therefore not necessary. In case the mounting6 q) g- W j, ^9 U) J r' @6 V
means of the glass shield is solely designed to withstand impacts from the inside, the test of 4.13.1 should be 7 H4 o' W) n; h! p6 Cperformed in that direction.作者: joanna01 时间: 2009-11-5 16:05
A的光源是低压Halogen lamp，所以灯具需要加protective shield。此灯具符合4.21的要求，所以判定PASS. ( h/ [3 t( v7 t# j而B的光源就是self-shielded lamps，所以可以不要再加protective shield。所以判不适用NA作者: EVERGREEN21 时间: 2009-11-5 17:33
对A 款 报告中"For self-shielded lamps only" 什么意思?' L$ R: O! F& R) F
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A 款是冲击玻璃罩吧?作者: okjun 时间: 2009-11-6 08:58
"For self-shielded lamps only"是写错了。作者: ediqi 时间: 2009-11-7 09:57
OK ,了解作者: linbaoshi 时间: 2009-11-11 00:17
这看上去是宜家的供应商在问关于宜家的产品的问题哦作者: gree76 时间: 2009-11-11 08:11
报告写的没错, 用词不一样,情况一样. 两种灯胆如果是低气压灯胆或双层防爆灯胆,都不用做额外的保护.