|
|
|  PDSH 955* I5 J4 V: v, W- Y+ o
* F! G4 K+ n) S- E& M2 [
. p( o/ ~8 T9 m3 \" j
| E14 lampholder used in lighting chains6 W) D% X5 C. h3 i" v+ F
| 20.7.1! S( d* W. ~ Q6 f1 W
| 60598-2-20(ed.3)
$ M. ^- I% ^$ h! i3 Q |
9 o, N8 k0 O i/ d- h% p
Standard(s): g: X3 h# B; l: b* d" ^
IEC 60598-2-20/2010# m5 k5 V. f9 I. a3 H* `' E P: g
Subclause(s): 20.7.1
" Q4 E, b+ m7 \1 q9 Q% XNo. Year PDSH 0955 2010) x, u1 ?0 }5 O% U. B
Category: LITE Developed by: ETF5 OSM/LUM- O& S2 T8 [. M9 S" v
Subject:
/ t: \- \2 q8 F3 U F5 K' P& YE14 lampholder used in lighting chains
: U$ d6 @7 W8 A' PKey words:
$ h2 L5 P, L6 }3 ^$ N9 H: S) T- E14 lampholder
) f, H4 _9 R5 C' G; g/ D6 J* p- Lighting chain' h8 V0 C0 h( X0 z8 d, W) o
- IEC 60238 U- {. o6 w, L
To be approved at the 49th CTL Plenary Meeting, in 2012
% I. B5 O* P! O: t [8 X; h- CQuestion:) J& Q# g$ j3 M+ T e! x! k# c
- Clause 20.7.1 of IEC 60598-2-20 requires that Edison screw lampholders E10, E14 and E 27 shall
% r( B" @4 [8 bmeet the requirements of IEC 60238.
; ~5 [4 T; ~. J% }( t! P& |- Clause 8.2 of IEC 60238 requires that lampholder shall be tested according to the gauges 7006-30. M; C" f: I" M1 T. o. }4 G. o
(7006-30A for candle lampholder) and 7006-31.
) s% f; B1 M* ?0 D8 n( m! AIn the case shown in photos 1 and 2, the only possibility to fulfill the requirements with gauge 7006-30 is) J/ U9 l+ v1 m
to cut the gasket around the rim of the lampholder. However in this condition the lampholder does not
9 _, a3 x9 B+ w3 yfulfill the requirement of 7006-31 for protection against electric shock. In the note after the fourth
! C& Q: J3 p& F6 G/ g. @paragraph of clause 20.12.1 of IEC 60598-2-20 it is written that the gasket may serve as protection against
4 U; B7 j# ~& j: J& ^/ m4 {2 o% T( Qaccidental contact with the cap of the lamp, but only for bayonet lampholder. So, it is not applicable to the
) n1 O. e: I. L- l' ^E14 lampholder.; R) Y+ ~- d1 r! E
In the case shown in photo 3 the test with gauge 7006-31 gives negative result.
+ {: q7 \- Y; k6 d/ ~6 h* A8 MIn the two cases, the lampholders have been designed to accept E14/20 lamp cap only (and not E14/23x15' D/ E v: ~5 V' c4 X
or E14/25x17). So, if the tests are performed with these kind of lamps, the test requirements are fulfilled.
0 s6 W1 } ~ `" m) z1 BWe think that this lampholder used in a lighting chain is not in compliance with the standard due to the8 }" I! K& N6 ]5 i" J4 l/ U
requirement of clause 20.7.1. What is the opinion of the other laboratories?1 v V8 f1 k9 S" x& o3 V5 U
Decision:" D6 K9 w3 \8 d4 q) s! K6 O5 r# Z' O
The lampholder can be accepted as part of lighting chain / luminaire. All requirements according to IEC) K" z3 A' z* f. P# L' j5 R
60238 as far as applicable have to be fulfilled and the gauge 7006-31 shall comply.
- p5 f% q) p: S) c( y
' F; a; y @ Q b! P3 m+ j0 b: b8 D' _
4 ?. O) E( J- H: B* F% _7 z) H4 q
3 a& h" i6 Z7 U
: Y8 s1 ~2 d: U! L' P& t- A; F; z% p& W2 L
|
本帖子中包含更多资源
您需要 登录 才可以下载或查看，没有账号？注册安规
x
|
1/2 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2012-9-16 15:39
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡