PDSH 955 E14 lampholder used in lighting chains

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PDSH 955

E14 lampholder used in lighting chains

20.7.1

60598-2-20(ed.3) + n5 S. e  u5 p

Standard(s):
IEC 60598-2-20/2010
Subclause(s): 20.7.1
No. Year PDSH 0955 2010
2 p3 L1 e/ y' S! b& |# k5 a) JCategory: LITE Developed by: ETF5 OSM/LUM
Subject:
E14 lampholder used in lighting chains
* V0 J+ Z9 G8 O1 `3 ?- ^9 V9 KKey words:
6 C# J  J) U1 @+ A5 o. G: L- E14 lampholder
8 w: c! i& Y2 K9 [# I# C0 d. V* {- Lighting chain
- IEC 60238
9 c, C2 p" P# F' W. VTo be approved at the 49th CTL Plenary Meeting, in 2012
Question:
! t/ p( X4 j# r! v8 m$ e# C3 l  M+ y- Clause 20.7.1 of IEC 60598-2-20 requires that Edison screw lampholders E10, E14 and E 27 shall
meet the requirements of IEC 60238.
# {8 a$ ?. P7 u/ |9 I5 c4 L- Clause 8.2 of IEC 60238 requires that lampholder shall be tested according to the gauges 7006-30
; o0 v1 V; u, |& k, N/ t7 P3 {0 Y1 z(7006-30A for candle lampholder) and 7006-31.
In the case shown in photos 1 and 2, the only possibility to fulfill the requirements with gauge 7006-30 is
+ q7 N! i7 J/ h1 b# [: u( zto cut the gasket around the rim of the lampholder. However in this condition the lampholder does not
3 |& D/ E- H! t$ z4 Ffulfill the requirement of 7006-31 for protection against electric shock. In the note after the fourth
paragraph of clause 20.12.1 of IEC 60598-2-20 it is written that the gasket may serve as protection against
accidental contact with the cap of the lamp, but only for bayonet lampholder. So, it is not applicable to the
  @# m4 J* _; g& z7 f" ]E14 lampholder.
1 g# E( s) J# O+ }* PIn the case shown in photo 3 the test with gauge 7006-31 gives negative result.
In the two cases, the lampholders have been designed to accept E14/20 lamp cap only (and not E14/23x15
or E14/25x17). So, if the tests are performed with these kind of lamps, the test requirements are fulfilled.
We think that this lampholder used in a lighting chain is not in compliance with the standard due to the
: }% b8 ^' t: p% Q" [4 @requirement of clause 20.7.1. What is the opinion of the other laboratories?
: p( W, \2 q3 p" LDecision:
. `5 [, C" O4 o; T/ LThe lampholder can be accepted as part of lighting chain / luminaire. All requirements according to IEC
, y4 X( |+ b4 U2 |+ m3 L60238 as far as applicable have to be fulfilled and the gauge 7006-31 shall comply.


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