EN 61427:2005

STANDARD(istoveten EN 61427:2005)6HNXQGDUQLþOHQLLQEDWHULMH]DIRWRYROWDLþQHHQHUJLMVNHVLVWHPH±6SORãQHzahteve in metode preskušanja (IEC 61427:2005)Secondary cells and batteries for photovoltaic energy systems (PVES) - General requirements and methods of test (IEC 61427:2005) !#"$%&'& *+5HIHUHQþQDãWHYLONDSIST EN 61427:2006(en)ICS27.160; 29.220.20

EUROPEAN STANDARD
EN 61427 NORME EUROPÉENNE EUROPÄISCHE NORM
August 2005 CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61427:2005 E
ICS 29.220.20; 27.160 Supersedes EN 61427:2001
English version
Secondary cells and batteries for photovoltaic energy systems (PVES) - General requirements and methods of test (IEC 61427:2005)
Accumulateurs pour les systèmes photovoltaïques (SPV) –
Exigences générales et méthodes d'essais (CEI 61427:2005)
Solarzellen und -batterien für photovoltaische Energiesysteme - Allgemeine Anforderungen und Prüfverfahren (IEC 61427:2005)
This European Standard was approved by CENELEC on 2005-07-01. CENELEC members are bound to 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 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 status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

at national level by publication of an identical
national standard or by endorsement
(dop)
2006-04-01 – latest date by which the national standards conflicting
with the EN have to be withdrawn
(dow)
2008-07-01 Annex ZA has been added by CENELEC. __________ Endorsement notice The text of the International Standard IEC 61427:2005 was approved by CENELEC as a European Standard without any modification. __________

- 3 - EN 61427:2005
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE Where an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication
Year Title EN/HD Year IEC 60050-482 - 1) International Electrotechnical VocabularyPart 482: Primary and secondary cells and batteries
- - IEC 60622 - 1) Secondary cells and batteries containing alkaline or other non-acid electrolytes - Sealed nickel-cadmium prismatic rechargeable single cells
EN 60622 2003 2) IEC 60623 - 1) Secondary cells and batteries containing alkaline or other non-acid electrolytes - Vented nickel-cadmium prismatic rechargeable single cells
EN 60623 2001 2) IEC 60721-1 - 1) Classification of environmental conditionsPart 1: Environmental parameters and their severities
EN 60721-1 1995 2) IEC 60896-11 - 1) Stationary lead-acid batteries Part 11: Vented types - General requirements and methods of tests
EN 60896-11 2003 2) IEC 60896-21 - 1) Part 21: Valve regulated types - Methods of test
EN 60896-21 2004 2) IEC 61056-1 - 1) General purpose lead-acid batteries (valve regulated types) Part 1: General requirements, functional characteristics - Methods of test
EN 61056-1 2003 2) IEC 61836 - 1) Solar photovoltaic energy systems - Terms and symbols
- - IEC 62259 - 1) Secondary cells and batteries containing alkaline or other non-acid electrolytes - Nickel-cadmium prismatic secondary single cells with partial gas recombination EN 62259 2004 2)
1) Undated reference. 2) Valid edition at date of issue.

NORME INTERNATIONALECEIIEC INTERNATIONAL STANDARD 61427Deuxième éditionSecond edition2005-05 Accumulateurs pour les systèmes
photovoltaïques (SPV)
– Exigences générales et méthodes d'essais
Secondary cells and batteries for photovoltaic energy systems (PVES) – General requirements and methods of test
Pour prix, voir catalogue en vigueur For price, see current catalogue IEC 2005
Droits de reproduction réservés

Copyright - all rights reserved Aucune partie de cette publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et les microfilms, sans l'accord écrit de l'éditeur. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Electrotechnical Commission,
3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, SwitzerlandTelephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch
Web: www.iec.ch CODE PRIX PRICE CODE N Commission Electrotechnique InternationaleInternational Electrotechnical Commission

61427  IEC:2005 – 3 –
CONTENTS
FOREWORD.5
1 Scope.9 2 Normative references.9 3 Terms and definitions.11 4 Conditions of use.11 4.1 Photovoltaic energy system.11 4.2 Secondary cells and batteries.11 4.3 General operating conditions.11 5 General requirements.19 5.1 Mechanical endurance.19 5.2 Charge efficiency.21 5.3 Deep discharge protection.21 5.4 Marking.21 5.5 Safety.21 5.6 Documentation.21 6 Functional characteristics.23 7 General test conditions.23 7.1 Accuracy of measuring instruments.23 7.2 Preparation and maintenance of test samples.23 8 Test method.23 8.1 Capacity test.23 8.2 Endurance in cycle test.25 8.3 Charge retention test.25 8.4 Cycle endurance test in photovoltaic application
(extreme conditions).25 9 Recommended use of tests.29 9.1 Type test.29 9.2 Acceptance test.29
Table 1 – Charge and discharge currents.13 Table 2 – Limit values for storage conditions of batteries for photovoltaic applications.17 Table 3 – Limit values for operating conditions of batteries
for photovoltaic applications.17 Table 4 – Battery Ah-efficiency at different states of charge at the reference temperature and a daily depth of discharge of less than 20 % of the rated capacity.21 Table 5 – Typical capacity ratings of batteries in photovoltaic applications.25 Table 6 – Phase A – Shallow cycling at low state of charge.27 Table 7 – Phase B – Shallow cycling at high state of charge.27

61427  IEC:2005 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________
SECONDARY CELLS AND BATTERIES
FOR PHOTOVOLTAIC ENERGY SYSTEMS (PVES)– GENERAL REQUIREMENTS AND METHODS OF TEST
FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61427 has been prepared by IEC technical committee 21: Secondary cells and batteries. This second edition cancels and replaces the first edition published in 1999. This edition constitutes a technical revision. This second edition is a restructuring of the previous edition of the document, clarifying the different clauses with regard to conditions of use, general requirements, functional character-istics, general tests conditions, test method and recommended use of tests, the aim being to ensure a better understanding by the end user. The test method is clearly explained in detail for both technologies: lead-acid and nickel-cadmium.

61427  IEC:2005 – 7 –
The text of this standard is based on the following documents: FDIS Report on voting 21/621/FDIS 21/624/RVD
Full information on the voting for the approval of this standard can be found in the report on vot
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