BS 469-1995 Specification for railway signalling lamps《铁路信号灯规范》.pdf
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1、BRITISH STANDARD BS 469:1995 Incorporating Corrigendum No. 1 Specification for Railway signalling lamps ICS 29.140.99; 45.040 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS 469:1995 This British Standard, having been prepared under the direction of the Electrotechnical Sect
2、or Board, was published under the authority of the Standards Board and comes into effect on 15 July 1995 BSI 18 January 2002 First published October 1932 Second edition January 1939 Third edition September 1952 Fourth edition December 1960 Fifth edition July 1995 The following BSI references relate
3、to the work on this standard: Committee reference CPL/34/1 Draft for comment 92/28352 DC ISBN 0 580 24250 1 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee CPL/34/1, Electric lamps, upon which the following bodies were re
4、presented: British Lighting Association for the Preparation of Standards (BRITLAPS) Chartered Institution of Building Services Engineers Consumer Policy Committee of BSI Electricity Association Engineering Equipment and Materials Users Association Institution of Lighting Engineers Lighting Industry
5、Federation Ltd. London Regional Transport Society of Motor Manufacturers and Traders Ltd. The following body was also represented in the drafting of the standard, through sub-committee CPL/34/1/9: British Railways Board Amendments issued since publication Amd. No. Date Comments 13457 Corr. No. 1 18
6、January 2002 Indicated by a sidelineBS 469:1995 BSI 18 January 2002 i Contents Page Committees responsible Inside front cover Foreword ii Section 1. General 1S c o p e 1 2 Normative references 1 3 Definitions 1 4 Requirements 2 Annex A (normative) Testing 14 Annex B (informative) Statistical basis o
7、f the test quantities and the acceptable non-conformity levels given in Annex A 17 Figure 1 Holder for torsion test for B.22 (3-pin) caps 3 Figure 2 Holder for torsion test for B.15 caps 4 Table A.1 Acceptable non-conformity level for mechanical and physical requirements 15 Table A.2 Acceptable non-
8、conformity level for lamps of an RTQ which are found to be inoperative at any time up to the end of the ageing period (see A.2.3)1 6 Table A.3 Acceptable non-conformity level for lamps with wattage above the specified maximum values 16 Table A.4 Acceptable non-conformity level for lamps with lumen v
9、alues below the specified minimum values 16 Table A.5 Acceptable non-conformity level for lamps with lumen values below the specified minimum values and wattage above the specified maximum values 16 Table A.6 Allowance for the average life of filaments, main filaments and auxiliary filaments of lamp
10、s in an LTQ 17 Table A.7 Acceptable non-conformity level for lamps in an LTQ in which the filament, main filament and auxiliary filament has a life shorter than 60 % of the specified life 17 Section 2. Standard data sheets for railway signalling lamps 5 List of references 18BS 469:1995 ii BSI 18 Jan
11、uary 2002 Foreword This British Standard has been prepared by Technical Committee CPL/34/1 and it supersedes BS 469:1960 which is withdrawn. This revision has taken the opportunity of changing the presentation of the information to reflect current international practice by the introduction of lamp d
12、ata sheets in Section 2, and of updating cross-references and drawings. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer im
13、munity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 18, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Sidelining in this docu
14、ment indicates the most recent changes by amendment.BS 469:1995 BSI 18 January 2002 1 Section 1. General 1 1 Scope This British Standard specifies the requirements for railway signalling lamps and gives the testing procedures required to establish conformity to the requirements, based upon statistic
15、al evaluation against an acceptable non-conformity level. 2 Normative references This British Standard incorporates, by reference, provisions from specific editions of other publications. These normative references are cited at the appropriate points in the text and the publications are listed on pa
16、ge 18. Subsequent amendments to, or revisions of, any of these publications apply to this British Standard only when incorporated in it by updating or revision. 3 Definitions For the purposes of this British Standard the following definitions apply. 3.1 rated value the value specified in the relevan
17、t lamp standard or assigned by the manufacturer or responsible supplier 3.2 double-pole lamp a double-filament lamp in which both filaments are connected permanently in parallel 3.3 triple-pole lamp a double-filament lamp in which one end of each filament is connected to the cap shell and the other
18、ends of the filaments are connected one to each contact plate 3.4 light centre the geometrical centre of the incandescent part of a filament (main or auxiliary) or, in the case of bow filaments, the centre of the enclosing rectangle 3.5 reference plane a plane defined with reference to the cap or ba
19、se and with respect to which the position of certain parts of the lamp are measured 3.6 reference axis an axis defined with reference to the cap or base and with respect to which the position of certain parts of the lamp are measured 3.7 light centre length the distance between the centre of the rec
20、tangle enclosing the luminous filament section or a defined point of the filament and the reference plane 3.8 axial error (lateral deviation) in lamps other than those with offset filaments, the perpendicular distance of the light centre from the axis of the cap 3.9 initial readings the photometric
21、and electrical values measured at the end of the ageing period 3.10 life the total time for which a lamp has been operated before it becomes useless, or, according to specific criteria, is considered to be soBS 469:1995 2 BSI 18 January 2002 Section 1 3.11 batch all the lamps of a single type manufa
22、ctured by a single manufacturer, within the same production time frame and under environmental and production conditions which can be considered to be uniform 3.12 inspection test quantity (ITQ) the sample of lamps required to be inspected for conformity to mechanical and physical requirements 3.13
23、rating test quantity (RTQ) the sample of lamps required to be tested for electrical and photometric values 3.14 life test quantity (LTQ) the sample of lamps required to be tested for conformity to the life requirement 3.15 reference number an identification number defining a type of lamp, with regar
24、d to the particular requirements of this specification 4 Requirements 4.1 General Lamps shall be so designed and constructed that in normal use they present no danger to the user or their surroundings. 4.2 Marking The following information shall be marked on the lamps, and shall remain legible when
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