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 , K- {, }! b5 K. R. R) J! W! M* }( i7 x
Live metal parts projected from Edison screw caps- w0 U' n9 r+ i6 }+ ]
8.2.1 0 I+ o5 R" H' v! l+ n5 g+ U
60598-1(ed.3);am1 & 60598-1(ed.4);am1 & 60598-1(ed.5) & 60598-1(ed.6);am1 & 60598-1(ed.7) " @9 M) Z! }" ^: G8 L, z# ]7 t
. Y) T P! U' w0 e9 w( A. lStandard(s): f6 |: {" A CIEC 60598-1 All editions # W* `7 H- P/ NSubclause(s): 8.2.1+ X. |: e3 r, D8 b5 Q b$ j* j
No. Year DSH 0897 2010% a& M7 {4 m* a! h
Category: LITE Developed by: ETF5 OSM/LUM 5 b1 n% y9 x+ I, f: ZSubject:$ Q, ^( B2 L9 H0 F+ I9 V
Live metal parts projected from Edison screw caps ) G: y& q9 c9 o* QKey words:- F9 k Q$ E) b0 \2 Q# m& ~, t! g% _
- Protection against electric shock9 T( x& G ?1 c( s5 E* T8 h# s" m
- Live metal parts ' G3 d7 D, P9 P) V- Standard test finger % [+ K* V' Q# H+ x) v6 wApproved at the 49th CTL Plenary Meeting, in 2012 ' \* D6 N J8 @4 pQuestion:. h$ R6 y2 Y: p
During the test of protection against electric shock for luminaires, in some cases a live metal part% n3 }( B/ A% d( Q/ M7 y: ?
projected from lamp cap E 27 can be accessible with the standard test finger. When the compliance of the & _( @/ X1 i) M. d. o7 ?+ dused lamp and the built-in lampholder were checked with the relevant requirements of IEC 60432-1 + V k( S# z0 a5 J8 k& Wand IEC 60238, they were found as satisfied. But the live part accessibility within the luminaire was$ B# [$ S* ?, _7 O
caused by such a metal part projected from the lamp cap which is acceptable according to the sub clause 1 X! \2 w+ x: f' \9 b* U- {2.7.3 of IEC 60432-1. “On Edison screw caps any projection from the cap shell shall not project more ; t1 J' C9 `, Q8 Q& `/ o7 Pthan 3 mm from the surface of the cap. See figure 1”. In this case there can easily come into existence a# F2 `1 ^3 |$ I; b2 |# e& H
cap and holder combination where the protection against electric shock cannot be maintained within the ) w0 n( R' @ H% Lluminaire.( }/ u G! s3 Z( t1 P! H
Can this luminaire construction be accepted?7 ]6 n, [3 W4 x
Decision:/ k" q$ s7 ]) j/ T e
Yes, the lampholder and the lamp shall comply with their gauges specified in IEC Publication 60061(for " e7 ^# g/ m; c$ S7 Y% g% q4 h. Sfurther information, see 60061-4, Sheet 7007-20-1).1 z! ]5 L' ^3 L4 D2 ~' N6 ^4 N d
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[attach]76077[/attach]3 i# a2 v% I3 i ~8 Q
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PDSH 897