PDSH 955 E14 lampholder used in lighting chains

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PDSH 955 $ S# N( `- P1 k, B# b" } - i/ z& [$ ]9 o* j

E14 lampholder used in lighting chains

20.7.1 8 c: ^4 U, `0 E

60598-2-20(ed.3)

* @% ~  n) h/ QStandard(s):
IEC 60598-2-20/2010
Subclause(s): 20.7.1
1 S' E) c. V" E) n  E1 G3 s6 ~No. Year PDSH 0955 2010
; e' ?, W. K' Z( [$ OCategory: LITE Developed by: ETF5 OSM/LUM
9 e0 T8 |- x4 r5 RSubject:
2 U3 ^" z2 K+ Y* SE14 lampholder used in lighting chains
, E7 T0 H$ H! }# y: eKey words:
6 f4 A9 t- Z3 K% V2 J$ h- E14 lampholder
- Lighting chain
- IEC 60238
7 T0 U- {; Q9 e6 ~0 QTo be approved at the 49th CTL Plenary Meeting, in 2012
Question:
- 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.
- 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.
In 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
paragraph of clause 20.12.1 of IEC 60598-2-20 it is written that the gasket may serve as protection against
4 M  `- S  e- _accidental contact with the cap of the lamp, but only for bayonet lampholder. So, it is not applicable to the
E14 lampholder.
$ Z  s; ^1 b: t" I" v4 d5 e3 BIn the case shown in photo 3 the test with gauge 7006-31 gives negative result.
. E6 {5 G) @, ]) DIn the two cases, the lampholders have been designed to accept E14/20 lamp cap only (and not E14/23x15
: I; s2 |. l9 F' ^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?
; h. c0 h* J" v* \! V: }; `Decision:
) m! G1 J( B! P5 y+ {  c, @. aThe lampholder can be accepted as part of lighting chain / luminaire. All requirements according to IEC
60238 as far as applicable have to be fulfilled and the gauge 7006-31 shall comply.

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