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本帖最后由 小米 于 2012-9-16 16:41 编辑 : e3 ?3 l" v2 H/ u
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|  PDSH 897' @8 q8 p* p$ Q
| Live metal parts projected from Edison screw caps
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| 60598-1(ed.3);am1 & 60598-1(ed.4);am1 & 60598-1(ed.5) & 60598-1(ed.6);am1 & 60598-1(ed.7)% p* W) q! Y& V3 j
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Standard(s):! d' c# R8 v# I7 t
IEC 60598-1 All editions/ q- d* \$ S7 m9 ~
Subclause(s): 8.2.1
0 t0 F. P1 n K8 x) D/ c# G& wNo. Year DSH 0897 2010! M& y( V+ k) k6 n: K, ^9 G
Category: LITE Developed by: ETF5 OSM/LUM) H/ k, M! e8 e9 I9 E+ M; |; q
Subject:3 U5 _9 \8 L9 S7 d
Live metal parts projected from Edison screw caps0 x3 y9 W. Z7 L! I
Key words:) \. I9 l8 }+ W# g' n: Z' ^
- Protection against electric shock# u, o/ {& b8 Y6 x' s2 G
- Live metal parts4 C- T6 h: f. o* y5 Y9 `
- Standard test finger/ x% i* S; |! X0 X8 m9 D
Approved at the 49th CTL Plenary Meeting, in 2012
1 W5 }+ v0 R& o, `- l% {; N9 QQuestion:
$ F3 e s* s. ?0 _During the test of protection against electric shock for luminaires, in some cases a live metal part( j0 T* i- E* y& Z
projected from lamp cap E 27 can be accessible with the standard test finger. When the compliance of the
- V) x- j' _$ V4 g) Fused lamp and the built-in lampholder were checked with the relevant requirements of IEC 60432-1
d: j! B9 Y, J _7 m1 eand IEC 60238, they were found as satisfied. But the live part accessibility within the luminaire was" D+ ~+ q& I& o" I" K- @
caused by such a metal part projected from the lamp cap which is acceptable according to the sub clause. q7 n* e/ p" `2 G6 G
2.7.3 of IEC 60432-1. “On Edison screw caps any projection from the cap shell shall not project more
! T+ G( E2 I0 H5 ?( I1 Xthan 3 mm from the surface of the cap. See figure 1”. In this case there can easily come into existence a
& B0 Y O8 [, R' ~! `9 H7 Hcap and holder combination where the protection against electric shock cannot be maintained within the! x" L( Q/ }! Y- S# V' A
luminaire. o) C% ^& q/ h1 l. W; v
Can this luminaire construction be accepted?. l- Q% Y l E0 S- c0 s6 E
Decision:- O. g, X. r0 M+ g+ u
Yes, the lampholder and the lamp shall comply with their gauges specified in IEC Publication 60061(for6 i) b9 w6 X) p+ F( t% z
further information, see 60061-4, Sheet 7007-20-1).9 N( g) v* a7 I& ?) J/ L& c+ V
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发表于 2012-9-16 16:40
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