PDSH 897 Live metal parts projected from Edison screw caps

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PDSH 897 0 ^$ R. u5 {4 K" Q

Live metal parts projected from Edison screw caps 8 @* G5 ?. c* S

8.2.1

60598-1(ed.3);am1 & 60598-1(ed.4);am1 & 60598-1(ed.5) & 60598-1(ed.6);am1 & 60598-1(ed.7)

7 F% W( x9 i) W" }3 ?  nStandard(s):
2 z: ~3 |1 [% E2 r  \IEC 60598-1 All editions
Subclause(s): 8.2.1
No. Year DSH 0897 2010
Category: LITE Developed by: ETF5 OSM/LUM
$ ?. j0 C* G4 \Subject:
% r- r! C% C( p. G' }& dLive metal parts projected from Edison screw caps
& I1 X: m9 u1 J$ Y& P# ?0 rKey words:
- Protection against electric shock
% P: k, b; `7 }# t% W6 c- Live metal parts
- Standard test finger
Approved at the 49th CTL Plenary Meeting, in 2012
# P1 B5 O0 Z# A- c" t4 U6 O2 PQuestion:
6 C. B8 q) i- c6 A; I( f) G9 e* SDuring the test of protection against electric shock for luminaires, in some cases a live metal part
projected from lamp cap E 27 can be accessible with the standard test finger. When the compliance of the
used lamp and the built-in lampholder were checked with the relevant requirements of IEC 60432-1
and IEC 60238, they were found as satisfied. But the live part accessibility within the luminaire was
4 e, n+ P2 k6 j- b5 xcaused by such a metal part projected from the lamp cap which is acceptable according to the sub clause
  o3 X; [+ [8 s* h3 p2 H* M2.7.3 of IEC 60432-1. “On Edison screw caps any projection from the cap shell shall not project more
: p% e! c+ }" othan 3 mm from the surface of the cap. See figure 1”. In this case there can easily come into existence a
cap and holder combination where the protection against electric shock cannot be maintained within the
luminaire.
Can this luminaire construction be accepted?
- w' U/ z! h' d$ ^  n, g6 wDecision:
2 Z9 s- \: P! |+ Q" [+ a( |Yes, the lampholder and the lamp shall comply with their gauges specified in IEC Publication 60061(for
7 I( K& y; s' }" s" [: B0 [further information, see 60061-4, Sheet 7007-20-1).

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