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|  PDSH 898
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| Live metal parts projected from Edison screw caps8 m7 W) L2 ~4 _1 c: G
| 8.2.1
/ j: ]/ n6 w* P- Y k- A; s8 Y | 60598-1(ed.3);am1 & 60598-1(ed.4);am1 & 60598-1(ed.5) & 60598-1(ed.6);am1 & 60598-1(ed.7)( e3 N9 |/ `! A; B6 O
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G. ^3 w8 A2 `* k) X% f$ ~Standard(s):. F& S1 G2 b3 ~ ?
IEC 60598-1
! T8 F( B! R5 m4 uIEC 60400 All editions
( {- r' b& O# l: S7 {- ESubclause(s): 8.2.1 8.2
3 ^0 A$ b& K9 v5 I2 w' F, A+ \Standard Sheet 7005-56-25 W0 q4 M' y" M; R5 b: W
No. Year DSH 0898 2010! q6 s N, D" ~7 E; [
Category: LITE Developed by: ETF5 OSM/LUM
9 {" m/ q0 G% }: y6 y( m- X& kSubject:
! i. T- P; G, H$ [G10q – connector’s construction
* i+ N* s/ y, Y' IKey words:
# Y( J+ O% z! Y6 w6 n- G10q lampholder8 H% D: ~& n' d% _
- Connector’s construction4 S) D( a8 `; z& O. M
- Protection against electric shock
5 J2 D& W1 E4 P& d, ?Approved at the 49th CTL Plenary Meeting, in 2012: F* O. ] X1 ?4 `" U9 |
Question:& o, ]/ B$ D# G; Y
In Standard Sheet 7005-56-2, the dimension “L” is solely for holder design and is not to be gauged. If the, Z# b% D% T: [ i y3 i
G10q connector is provided according to the Figures 2, “without L(1) and without L(2)”, do you think that+ e" t; d5 U) t$ }1 A
this construction is in conformity with IEC 60400 and IEC 60598-1?
, J) P7 h3 R+ M! W) L' g' f; uDecision:/ ^" w c4 x* I, A) }
Yes, for the following reasons: in Standard Sheet 7005-56-2, the dimension “L” is indicated with the- n3 W, ?3 i' b1 h& g
minimum value only, the maximum value could be infinite; it is not specified how long the lampholder
. I5 p% x/ h$ S* z( N: a6 ~6 Wpart should be delimited by “L” dimension, it could be 0 mm; clause 8.2 of IEC 60400 – “The insertion of- g) H# t5 r% g" l. D
only one pin of the lamp (…..) or starter to the first point of contact shall be prevented. This requirement. P6 u' M) ?) Q o2 S( m- s
is not applicable to G10q holders”. This construction without additional protection around the connector is
! C* w* X& ~, w eacceptable.
6 y# Y2 T$ E# jThe reason for accepting the first point of contact is based on the fact that this fit was developed before
; W9 o) [6 d Ythe development of IEC 60061 and IEC 60400, consequently, this fit does not follow the normal rules for4 f$ {* l/ f% b2 L7 s9 c
accessibility to live parts. This should be regarded as a “historic” fit having a good record of safety in
5 F, e8 V6 D% s& i: eservice over many years.
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发表于 2012-9-16 16:34
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