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第四章节,改动较大的几个地方!
2 N( f1 m' p6 @! L' G# G只是草案,了解交流!4 m9 Y7 F. G$ I& G* v
大部分的改动都是针对LED光源的!
V6 ?6 n3 F Q% _% U0 m
/ F O3 R$ N) Z E% z4.24 Photobiological hazards" {6 V( R/ [8 H7 n; U( I
' w, S, w: L+ _3 L+ O* c# G, A& O4.24.1 UV radiation
" R* Q$ Q/ c5 RLuminaires designed for tungsten halogen lamps and luminaires designed for metal halide
7 _. I9 X: u6 l1 Hlamps shall not emit excessive UV radiation when used with the lamp. For self-shielded lamps,
8 Z5 [) A% d2 p. [+ N( c0 Bthis requirement is met by the lamp design.6 W2 a5 P8 D8 ~4 J6 _
For tungsten halogen lamps and most metal halide lamps, when needing a protective shield,
1 l- l4 k" w8 j4 |8 ]; [any glass will reduce the UV radiation to a sufficiently low level.
- J+ U9 m7 c, BNOTE 1: See 60432-3 and IEC 62035 for lamp marking0 _; o# h' B, W- X0 L4 p
For some metal halide lamps, emitting a high level of radiation, Annex P describes methods to& n. f7 p& L- t, h& b! e
provide adequate shielding for UV radiation by the luminaire.6 \, O+ [) S8 h" N
NOTE 2; See Annex P, procedure A or B for method of calculation to provide effective radiation shielding.
# \6 D; l. x8 _- c* d% P8 N' I. l6 l7 R
7 u5 v x" r5 d& d0 O/ h1 Y4.24.2 Retinal Blue Light Hazard
* \8 K! P2 {% O% T2 zLuminaires with integrated LED’s or with LED modules shall be assessed according to IEC/TR9 s" c6 X8 p; }
62778 “Application of IEC 62471 to light sources and luminaires for the assessment of blue
$ M6 m' V: t0 H; x4 ^2 F4 @ Tlight hazard”.
$ k* p# c& j( j8 Y( D! aThe use of LED light sources with a blue light risk group rating greater than RG2 is not
& u' d! ^- ~& n% E0 @( Texpected. Additional more onerous requirements for the management of these types of light
& K5 q k, Q& }% x [sources would need to be applied.
' D) A$ Q6 l; RNote 1: Requirements for luminaires using RG3 LED light sources are not yet developed because these products6 z+ `& o: z" V
are not generally available on the market. Further requirements will be developed if needed in the future.% D0 n" Y; P; h7 S: k' @! s3 x" g+ H
For luminaires using an LED light source having an RG0 or RG1 rating in accordance with2 t( R# R n3 n9 Y9 e- C* B; x
IEC/TR 62778 rating based on 200mm, 0.011rad measurement), or which have been assessed
* \- P# ^; A* ]- y8 \# ]. P. Gas RG0 or RG1 fully assembled for use, under the same conditions, no additional requirements
3 D4 a5 b) q. Wapply.
5 ?) D& s8 O+ M' oFor luminaires having a Risk Group 1/2 (Ethr) boundary condition in accordance with IEC/TR5 L, p/ W, U2 ]$ }3 q7 M7 p
62778 the following requirements shall apply:; c: V, J1 U ^3 W9 M! M
a) For fixed mounted luminaires, an additional assessment according to IEC/TR 62778 shall be7 _" T9 T/ `. t3 [1 s* E7 {
made to find the distance Xm between luminaire and the borderline between RG2 and RG1.
( e! U( `/ z) c+ u% cThe luminaire shall be marked and have instructions according to 3.2.23 of this standard.. u, L" J- R* w' L+ f; Q& [
b) Portable and hand held luminaires exceeding RG1 at 200mm (0.011rad measurement), are
+ W3 \9 D9 {- m' h2 d% Drequired to be marked according to subclause 3.2.23 of this standard.) _& w, [! G. R; u/ U
Note 2: Normally details of the Risk Group Classification should be available from the manufacture of the LED light/ |8 p8 {/ d0 Z! G- l1 s
source.0 `6 g2 ?2 y: s5 t% I, C
Note 3 : In some luminaire designs e.g. luminaires with integral LED light sources, it may be necessary for the0 V$ ]5 G! P$ [' e( o' [+ `- n; B. x
complete luminaire to be tested.
% H$ Q3 e, X4 x8 ?, z/ m6 P$ nNote 4 : The building of discreet LED’s into extended arrays or the application of additional optics does not increase
5 o( l& [9 U7 u5 y) ithe Risk Group Category of the basic LED light source.
& C8 G6 H+ P9 ~; o: o# c2 GNote 5 : The manufacturers declared photometric data for the luminaire may be used as the basis for the9 s! |( r& @2 e. X
assessment detailed under item ‘a’./ C+ u( c, ]0 J( i, w/ k, ?
Portable luminaires for children, covered by IEC60598-2-10, and mains socket-outlet$ w' z; h+ x( X$ n& p4 j6 N
nightlights, covered by IEC60598-2-12, shall not exceed RG1 at 200mm (0.011rad
5 h' G3 i; \; y# ~7 z V- nmeasurement)3 K, i* A8 |! `
Note 6: Future amendments specific to IEC60598-2-10 and IEC60598-2-12 in this respect will follow.) @& o5 l% L f! U
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