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标题: PDSH 898 Live metal parts projected from Edison screw caps [打印本页]
作者: 小米    时间: 2012-9-16 16:34
标题: PDSH 898 Live metal parts projected from Edison screw caps
PDSH 8980 n  L4 L; {" K. Y( U' \$ o

3 n0 W% Q" W9 }" d0 J		Live metal parts projected from Edison screw caps
! q& P  V# C; B3 k7 u		8.2.1
( |& F+ n0 M) z% Q4 W. K- L" V		60598-1(ed.3);am1 & 60598-1(ed.4);am1 & 60598-1(ed.5) & 60598-1(ed.6);am1 & 60598-1(ed.7), L1 U$ S* |+ D$ M) ~6 W. k

1 ~% _, \+ Z; iStandard(s):
& @0 G( }' P/ E6 L$ A- l* n9 eIEC 60598-1
! ^7 ]5 h2 c. y/ J5 L1 ^) LIEC 60400 All editions
8 i: Q" E  \& W- N! E) ^Subclause(s): 8.2.1 8.20 }8 D2 L( R6 T$ Y  `- I7 H* _
Standard Sheet 7005-56-2/ R0 H$ I- r6 M4 J4 p9 E
No. Year DSH 0898 2010
" a! W4 x- {: f* s0 Z0 ICategory: LITE Developed by: ETF5 OSM/LUM$ j& r9 |) p9 M5 f$ V/ o2 G
Subject:0 f8 H3 u* N9 E1 g2 X" ]. M
G10q – connector’s construction
! _% A4 B, k- ~& SKey words:
& `* A+ V! w! O9 M; V& o. h& a# m- G10q lampholder+ K0 t& e- f5 o. q1 B( i' u
- Connector’s construction
$ O5 C. A6 r* o3 f" ]  m- Protection against electric shock
- T8 ^8 E$ p1 C8 ~4 N6 NApproved at the 49th CTL Plenary Meeting, in 2012; J& T8 p! B, R
Question:
" C* {* T2 f5 B& UIn Standard Sheet 7005-56-2, the dimension “L” is solely for holder design and is not to be gauged. If the3 T( z3 a  U- j
G10q connector is provided according to the Figures 2, “without L(1) and without L(2)”, do you think that
3 C% w" n* L  W4 S- ethis construction is in conformity with IEC 60400 and IEC 60598-1?: X& P# [+ R/ ~: S+ Q6 U
Decision:! B% O8 K+ R+ ~% N: w2 Z
Yes, for the following reasons: in Standard Sheet 7005-56-2, the dimension “L” is indicated with the; v! b2 m; R$ h* F4 ]6 f
minimum value only, the maximum value could be infinite; it is not specified how long the lampholder+ q8 I4 D0 n3 o/ Y0 z8 N
part should be delimited by “L” dimension, it could be 0 mm; clause 8.2 of IEC 60400 – “The insertion of
5 n$ C- ~2 a* ~/ d( V8 c6 monly one pin of the lamp (…..) or starter to the first point of contact shall be prevented. This requirement
1 C+ N7 {* A+ k2 Y0 M+ w4 j; Q9 Fis not applicable to G10q holders”. This construction without additional protection around the connector is
. s) I3 k$ m. x& k& k+ l+ {+ H/ Xacceptable.) t+ q. M) n8 ^7 z6 X: b* f, U- N: D
The reason for accepting the first point of contact is based on the fact that this fit was developed before# M" z: y* B' ~
the development of IEC 60061 and IEC 60400, consequently, this fit does not follow the normal rules for
! E, x' w* p& Z" g0 L, t& xaccessibility to live parts. This should be regarded as a “historic” fit having a good record of safety in
% m! X7 B+ `9 Z: g7 yservice over many years.
9 U$ r! S0 ~& `. p- o7 d+ B& Y
[attach]76076[/attach]
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[attach]76075[/attach]
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% B0 U* \( ?+ P[attach]76074[/attach]2 i% O4 }, W3 p7 @: T  l
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