BS EN 61434-1997 Secondary cells and batteries containing alkaline or non-acidic electrolytes - Guide to the designation of current in alkaline secondary cell and battery standards.pdf

1、BRITISH STANDARD BS EN 61434:1997 IEC 61434:1996 Secondary cells and batteries containing alkaline or non-acidic electrolytes Guidetothe designation of current in alkaline secondary cell and battery standards The European Standard EN61434:1996 has the status of a British Standard ICS 29.220.30BSEN61

2、434:1997 This British Standard, having been prepared under the directionof the Electrotechnical Sector Board, was published underthe authority of the Standards Board and comes intoeffect on 15September1997 BSI 09-1999 ISBN 0 580 28461 1 National foreword This British Standard is the English language

3、 version of EN61434:1996. It is identical with IEC61434:1996. The UK participation in its preparation was entrusted by Technical Committee PEL/21, Secondary cells and batteries, to Subcommittee PEL/21/1, Secondary cells and batteries containing alkaline and other non-acidic electrolytes, which has t

4、he responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the

5、 UK. A list of organizations, represented on this Subcommittee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number60000 added to the old number. For instance, IEC27-1 has been renumbered as IEC60027-1. For a period of time during the change over fro

6、m one numbering system to the other, publications may contain identifiers from both systems. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publi

7、cations. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index” or using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard

8、 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 immunity from legal obligations. Summary of pages This document comprises a front cover, an

9、inside front cover, pages i and ii, theEN title page, pages 2 and 3 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Da

10、te CommentsBSEN61434:1997 BSI 09-1999 i Contents Page National foreword Inside front cover Foreword 2 Text of EN 61434 3ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN61434 December1996 ICS 29.220.30 Descriptors: Alkaline batteries, current, designation English version Secondary cells a

11、nd batteries containing alkalineorothernon-acid electrolytes Guidetothedesignation of current in alkaline secondarycell and battery standards (IEC 1434:1996) Accumulateurs alcalins et autres accumulateurs lectrolyte non acide Guidepour lexpression des courants danslesnormes daccumulateurs alcalins (

12、CEI 1434:1996) Sekundrzellen und Batterien mit alkalischemoder anderen nicht surehaltigenElektrolyten Richtlinien fr die Bestimmung des Stromes in Normen fralkalische Sekundrzellen undBatterien (IEC 1434:1996) This European Standard was approved by CENELEC on1996-10-01. CENELEC members are bound to

13、comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central

14、 Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same statu

15、s as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. CENELEC European Committee for El

16、ectrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1996 Copyright reserved to CENELEC members Ref. No. EN 61434:1996 EEN61434:1996 BSI 09-1999 2 Foreword The text of

17、document 21A/188/FDIS, future edition1 of IEC1434, prepared by SC21A, Alkaline secondary cells and batteries, of IEC TC21, Secondary cells and batteries, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN61434 on1996-10-01. The following dates were fixed: Endorsement no

18、tice The text of the International Standard IEC1434:1996 was approved by CENELEC as a European Standard without any modification. Contents Page Foreword 2 Introduction 3 1 Scope 3 2 Method of designation 3 latest date by which the EN has to be implemented at national level by publication of an ident

19、ical national standard or by endorsement (dop) 1997-07-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 1997-07-01EN61434:1996 BSI 09-1999 3 Introduction In alkaline secondary cell and battery standards and in the industry in general, charge and disch

20、arge currents have traditionally been expressed as fractions or multiples of C, where C is the rated capacity of the cell or battery in ampere hours (Ah). Objections have been raised that to divide or multiply C results in a fraction or multiple of Ah and it is therefore mathematically incorrect to

21、express current amperes (A) in this way. 1 Scope This International Standard applies to secondary cells and batteries containing alkaline or other non-acid electrolytes. It proposes a mathematically correct method of current designation which shall be used in future secondary cell and battery standa

22、rds. 2 Method of designation The reference test current as specified in the various test methods detailed in a standard shall be expressed as: where All charge and discharge currents shall then be expressed as fractions or multiples of I t . The value of n used in the standard determines only the fr

23、action or multiple of I tused for the various specified purposes in that standard. For example, if n = 5, then the discharge current used to verify therated capacity shall be 0,2 I t A. If n = 1, the discharge current used to verify the rated capacity shall be 1,0 I t A. Note that the value of n use

24、d in the standard has no effect on the value of I t . The numerical value of I twill always be equal to the numerical value of C nregardless of the value of n. I t is the reference test current, in amperes; C n is the rated capacity of the cell or battery asdeclared by the manufacturer, in ampere-ho

25、urs; n is the time base (hours) for which the rated capacity is declared. I t A C n Ah 1 h - =BS EN 61434:1997 IEC 61434:1996 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK vi

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