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|  PDSH 955+ f9 p- b( ~; i! q( k' s6 x, `% ~
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5 v7 q! w. R: a% b" f5 w | E14 lampholder used in lighting chains
! \* W! N+ z) N6 N | 20.7.1
+ N, \2 p% I5 m+ F | 60598-2-20(ed.3)
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Standard(s):0 g5 a' i+ w3 V$ {" e
IEC 60598-2-20/2010% H) X" g, K9 q4 b
Subclause(s): 20.7.1: A# G# |$ S6 t) K
No. Year PDSH 0955 20100 @0 u3 m# J+ r3 ~- Z/ b
Category: LITE Developed by: ETF5 OSM/LUM* W; i- k0 g" w5 q7 k
Subject:+ \! L8 g- H2 H7 T0 ~8 M
E14 lampholder used in lighting chains" Q' C0 f" W: g* }
Key words:$ O) J/ Q2 S `, }! a
- E14 lampholder/ r5 j0 O; @. B9 e' e1 [
- Lighting chain
3 V" N* g U, V: `: s, C5 R- IEC 60238
0 [. |4 j7 b# X2 S& H! ^To be approved at the 49th CTL Plenary Meeting, in 2012
" f0 e" T/ W, t) E- F4 F6 WQuestion:2 U" G' [% U+ G/ j$ {
- Clause 20.7.1 of IEC 60598-2-20 requires that Edison screw lampholders E10, E14 and E 27 shall( q+ _! a) K' m6 I6 o# ^2 T, j
meet the requirements of IEC 60238./ N; o8 G9 @5 E- E7 M
- Clause 8.2 of IEC 60238 requires that lampholder shall be tested according to the gauges 7006-30
4 z8 A8 Z, C5 D* k(7006-30A for candle lampholder) and 7006-31.) |$ `4 S6 k+ h' O
In the case shown in photos 1 and 2, the only possibility to fulfill the requirements with gauge 7006-30 is
' y3 D; m4 z" H) u1 Fto cut the gasket around the rim of the lampholder. However in this condition the lampholder does not
. @( X# ]3 T5 S0 Zfulfill the requirement of 7006-31 for protection against electric shock. In the note after the fourth
- C( ]& s/ r# c4 g! F7 ]/ H8 Eparagraph of clause 20.12.1 of IEC 60598-2-20 it is written that the gasket may serve as protection against
) m5 d9 q8 d/ i8 Maccidental contact with the cap of the lamp, but only for bayonet lampholder. So, it is not applicable to the
3 h a4 ~; P3 j Z, Y$ BE14 lampholder.
2 `; Q- e. y, L3 Z6 pIn the case shown in photo 3 the test with gauge 7006-31 gives negative result.
K, S, ]* v9 T- \8 J- ^In the two cases, the lampholders have been designed to accept E14/20 lamp cap only (and not E14/23x15+ B% s3 y" C. p5 w! o1 G& I- J
or E14/25x17). So, if the tests are performed with these kind of lamps, the test requirements are fulfilled.1 L- I7 H+ H8 f: J* R
We think that this lampholder used in a lighting chain is not in compliance with the standard due to the. F+ w* i8 M5 Q! Z; S) t
requirement of clause 20.7.1. What is the opinion of the other laboratories?
x1 l: l0 S& A: W/ E7 R$ TDecision:' m8 ^6 E% u5 G! x% T
The lampholder can be accepted as part of lighting chain / luminaire. All requirements according to IEC) F/ k5 t+ @& B! H: J
60238 as far as applicable have to be fulfilled and the gauge 7006-31 shall comply.* N4 @, [# ^+ f; L1 [2 U
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