PDSH 955 E14 lampholder used in lighting chains

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PDSH 955 # t4 J, n2 ]% S- m0 c # l% y, s' P" T0 h9 f

E14 lampholder used in lighting chains

20.7.1 5 \" @7 f% R9 U# R

60598-2-20(ed.3)

Standard(s):
IEC 60598-2-20/2010
! ^+ K* O7 {# v6 K/ y$ TSubclause(s): 20.7.1
No. Year PDSH 0955 2010
5 a" R4 u" H  C2 r) U" tCategory: LITE Developed by: ETF5 OSM/LUM
Subject:
E14 lampholder used in lighting chains
Key words:
5 ]# `( [/ y( [. D5 a% g  B- E14 lampholder
- Lighting chain
- IEC 60238
" ~  U9 b, q) dTo be approved at the 49th CTL Plenary Meeting, in 2012
Question:
& B4 q  v! F9 q, a2 U  j- Clause 20.7.1 of IEC 60598-2-20 requires that Edison screw lampholders E10, E14 and E 27 shall
1 Z9 `' [4 {4 s( i0 ^6 Z0 qmeet the requirements of IEC 60238.
- Clause 8.2 of IEC 60238 requires that lampholder shall be tested according to the gauges 7006-30
(7006-30A for candle lampholder) and 7006-31.
0 w! d# w4 C3 D/ ^; DIn the case shown in photos 1 and 2, the only possibility to fulfill the requirements with gauge 7006-30 is
to cut the gasket around the rim of the lampholder. However in this condition the lampholder does not
fulfill the requirement of 7006-31 for protection against electric shock. In the note after the fourth
( F  F/ V! E( s; B1 O9 `# L5 Xparagraph 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
3 x' j0 p+ b! W! p& ^3 z0 N# cE14 lampholder.
( B* _7 C: |. ^) ?2 I' s2 HIn the case shown in photo 3 the test with gauge 7006-31 gives negative result.
! ^- J6 ~7 r& L+ |) DIn 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
requirement of clause 20.7.1. What is the opinion of the other laboratories?
Decision:
The lampholder can be accepted as part of lighting chain / luminaire. All requirements according to IEC
4 h6 a5 ?9 e4 o3 ^: W3 \* }60238 as far as applicable have to be fulfilled and the gauge 7006-31 shall comply.
+ r, V" N2 e( ]' ]' P3 }1 Q5 D" k& G