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|  PDSH 898
8 h9 w% l- D: Y. o: }: w9 F8 r0 G+ W# t/ F7 a, w' ~# k
| Live metal parts projected from Edison screw caps% l* {/ B" a/ g7 S
| 8.2.1
. o" y* b3 e6 Y* v* O0 C | 60598-1(ed.3);am1 & 60598-1(ed.4);am1 & 60598-1(ed.5) & 60598-1(ed.6);am1 & 60598-1(ed.7)2 n3 |" `5 Q- N, R6 S" p" ?# Q
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Standard(s):( M8 G" I; Z7 s+ B
IEC 60598-1; `8 T% j1 M5 |0 m
IEC 60400 All editions
' K+ j9 W. n P- Z( s* _/ V$ dSubclause(s): 8.2.1 8.20 Q( Z9 i @6 T
Standard Sheet 7005-56-2
3 O0 M) X3 U* X$ C/ @No. Year DSH 0898 2010
, y4 t4 g. d |. `Category: LITE Developed by: ETF5 OSM/LUM0 h1 k$ c0 f+ w1 h/ t* i
Subject:
. R/ y7 z$ j9 s, s1 }! ]7 wG10q – connector’s construction
8 M$ V+ }8 r" e/ U1 P8 W' VKey words:/ ]0 [' Z1 z" I' n; F: M4 _) n
- G10q lampholder& F% j1 Q4 [, T' X$ ?' F- p
- Connector’s construction& Z2 {+ g" q+ N
- Protection against electric shock
( d1 b: _7 K" {" l4 X) ?Approved at the 49th CTL Plenary Meeting, in 2012. m7 } U, s, J- Y) v; [% j
Question:
# I: `1 ^ |* _2 PIn Standard Sheet 7005-56-2, the dimension “L” is solely for holder design and is not to be gauged. If the
# X. x) B& ?: j1 EG10q connector is provided according to the Figures 2, “without L(1) and without L(2)”, do you think that
$ i0 M1 W( h3 ?' r `% qthis construction is in conformity with IEC 60400 and IEC 60598-1?5 W4 Z; P) `3 ]8 x& y
Decision:: n, K5 ]8 ^8 H4 d' W" i+ J
Yes, for the following reasons: in Standard Sheet 7005-56-2, the dimension “L” is indicated with the+ f! h0 j$ b& b" O. \4 f
minimum value only, the maximum value could be infinite; it is not specified how long the lampholder1 n) O. A- x' J* u2 ~* S# Z! V3 ~
part should be delimited by “L” dimension, it could be 0 mm; clause 8.2 of IEC 60400 – “The insertion of
: G" V w5 x5 `* x. w9 ?only one pin of the lamp (…..) or starter to the first point of contact shall be prevented. This requirement
$ M" ~. O# @) S" k+ c" Lis not applicable to G10q holders”. This construction without additional protection around the connector is
|% d; N/ ~* }* ^; x- M& Kacceptable.
& S* ?# z# A! a! n, zThe reason for accepting the first point of contact is based on the fact that this fit was developed before
2 r- B8 a0 I0 L, X& b( {the development of IEC 60061 and IEC 60400, consequently, this fit does not follow the normal rules for: S- X6 D* Y8 [7 f) Z, t- v
accessibility to live parts. This should be regarded as a “historic” fit having a good record of safety in2 L# Y5 x5 Z/ m3 G8 @9 C
service over many years.5 t# ^ ^! F* K6 k
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发表于 2012-9-16 16:34
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