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标题: PDSH 897 Live metal parts projected from Edison screw caps [打印本页]
作者: 小米    时间: 2012-9-16 16:40
标题: PDSH 897 Live metal parts projected from Edison screw caps
本帖最后由 小米 于 2012-9-16 16:41 编辑 9 y1 M2 L8 c  S5 |

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PDSH 897
, B+ ^9 b( v* h* u2 T		Live metal parts projected from Edison screw caps- b5 T6 E- q! [; w8 i% n7 m
8.2.1
+ k- A9 ?% M) D		60598-1(ed.3);am1 & 60598-1(ed.4);am1 & 60598-1(ed.5) & 60598-1(ed.6);am1 & 60598-1(ed.7)# r3 f+ D3 h, S9 z- E  m' A0 G

% @7 J5 @' u% ^# W/ k# I! i+ s9 [+ PStandard(s):: f) K% K% z- `- o6 s3 q
IEC 60598-1 All editions3 n+ Q9 ?3 J; I/ G5 C
Subclause(s): 8.2.1) G0 e; e0 _- P/ l. m6 ]9 C, ?
No. Year DSH 0897 2010
* T% E3 l, ~( I( b6 r8 a& VCategory: LITE Developed by: ETF5 OSM/LUM) Z5 s% Z' B' s, z  g9 t6 }* \
Subject:' L) B8 Q- j2 \2 r; f
Live metal parts projected from Edison screw caps+ R0 P3 Y  `$ T  n$ W
Key words:: X% P) M6 }6 e8 q  M4 O
- Protection against electric shock7 u: V' U3 D4 H' `
- Live metal parts
) x* L3 _  v) w  T- Standard test finger8 n0 t  f; t) O( ?; ]. s. J5 A
Approved at the 49th CTL Plenary Meeting, in 20126 [/ M4 a" W' U8 ^, k+ M7 q& s" H
Question:
& h1 o; F3 S" l! q$ \During the test of protection against electric shock for luminaires, in some cases a live metal part, ^; w. z/ q- A: L5 q+ K
projected from lamp cap E 27 can be accessible with the standard test finger. When the compliance of the, Z" W2 `" s/ M3 H0 p; E' e9 g" T
used lamp and the built-in lampholder were checked with the relevant requirements of IEC 60432-19 V3 L( ^2 m% K4 }- G, _1 X: v
and IEC 60238, they were found as satisfied. But the live part accessibility within the luminaire was7 `% e) C' b" G, L
caused by such a metal part projected from the lamp cap which is acceptable according to the sub clause# j8 ]' I3 U! q( j! [9 e' Y- ?
2.7.3 of IEC 60432-1. “On Edison screw caps any projection from the cap shell shall not project more
; ~- h" l  l7 N+ s+ Dthan 3 mm from the surface of the cap. See figure 1”. In this case there can easily come into existence a3 d0 h' M. N( V+ k6 K6 h2 m& G
cap and holder combination where the protection against electric shock cannot be maintained within the
2 F  B# P, h9 W0 d0 k$ kluminaire.6 l/ v+ n$ t3 [; B
Can this luminaire construction be accepted?* F  H. ?( f- b- P9 c/ C+ j$ a+ J. H! u
Decision:1 X8 X# g0 {, p- y: E. K
Yes, the lampholder and the lamp shall comply with their gauges specified in IEC Publication 60061(for9 J" S% P( H& \& P7 V
further information, see 60061-4, Sheet 7007-20-1)." E$ D* ^2 H' q3 S1 ~/ k: x8 Q0 S& R

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