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本帖最后由 小米 于 2012-9-16 16:41 编辑
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|  PDSH 8979 U9 Q3 U$ K& r( b2 H! t5 m6 l) I
| Live metal parts projected from Edison screw caps
( ?3 B/ L2 {4 K4 z/ b# I, F | 8.2.1
7 d H8 E: f# H- d: y: ]/ W | 60598-1(ed.3);am1 & 60598-1(ed.4);am1 & 60598-1(ed.5) & 60598-1(ed.6);am1 & 60598-1(ed.7)
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. M/ U4 c7 P+ u/ T9 VStandard(s):- K3 M+ G+ [+ u5 U: n
IEC 60598-1 All editions- C1 J+ n( _; M6 K
Subclause(s): 8.2.1
8 F, ~& y* x; }+ k/ L5 ~ i" ^( l3 GNo. Year DSH 0897 20104 Q6 t9 ]# [4 V' p1 w
Category: LITE Developed by: ETF5 OSM/LUM
m7 Z0 _0 r+ B1 J" X4 B* r( J0 SSubject:
0 g( u8 V9 X6 c$ SLive metal parts projected from Edison screw caps% L3 u N$ ^! h" g4 X
Key words:# V9 V0 Z, r0 F4 _, x/ y, X& Z
- Protection against electric shock
, y; o) H1 u- [/ `; R- Live metal parts
3 Z* ?* |9 c* y" S0 H- Standard test finger
* R4 d; @: c- Z- a) M% y$ z' Q- \Approved at the 49th CTL Plenary Meeting, in 2012
6 T+ l7 ^9 @5 C2 I! rQuestion:' l/ ?2 z6 k J$ [1 V5 i! P6 U6 b6 C; c" E
During the test of protection against electric shock for luminaires, in some cases a live metal part' T2 W7 G4 i8 n8 c. G! y* Y o$ e
projected from lamp cap E 27 can be accessible with the standard test finger. When the compliance of the6 b) B% X' _/ x
used lamp and the built-in lampholder were checked with the relevant requirements of IEC 60432-1
- w: g8 t! f l$ ` a' Uand IEC 60238, they were found as satisfied. But the live part accessibility within the luminaire was; R: @2 O0 s" ^5 X
caused by such a metal part projected from the lamp cap which is acceptable according to the sub clause
+ d8 h( t' I' R& L. R2.7.3 of IEC 60432-1. “On Edison screw caps any projection from the cap shell shall not project more
8 n/ U8 @. Y' M" c1 ^- U3 t1 D3 p' othan 3 mm from the surface of the cap. See figure 1”. In this case there can easily come into existence a3 B* o6 D. a2 n( Q' q4 R+ Z1 V
cap and holder combination where the protection against electric shock cannot be maintained within the: u+ x1 P- m( B2 e4 T8 O
luminaire.3 ?) L6 L- n2 B; h$ R$ K; c, W
Can this luminaire construction be accepted?' a5 k0 j- j6 P6 I
Decision:+ g# m1 _/ N( N6 y" W8 Y
Yes, the lampholder and the lamp shall comply with their gauges specified in IEC Publication 60061(for
/ T- Y6 [* N( W8 m ~# J7 tfurther information, see 60061-4, Sheet 7007-20-1).
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发表于 2012-9-16 16:40
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