IEC ECTS61400-28 Edition1.02025-03 TECHNICAL SPECIFICATION Windenergygenerationsystems Part28:Through-lifemanagementandlifeextensionofwindpowerassets IEC TS 61400-28:2025-03(er THISPUBLICATIONISCOPYRIGHTPROTECTED Copyright2025IEC,Geneva,Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in anyform or by any means, electronic or mechanical, including photocopying and microfilm,without permission in writing from either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local IEC member National Committee for further information. IEC Secretariat Tel.: +41 22 919 02 11 3,ruedeVarembe [email protected] CH-1211Geneva 20 www.iec.ch Switzerland About theIEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes InternationalStandardsforall electrical,electronic andrelatedtechnologies. AboutIECpublications The technical content of IEC publications is kept under constant review by the IEC.Please make sure that you have the latest edition, a corrigendum or an amendment might have been published. IECpublications search-webstore.iec.ch/advsearchform IEC Products &Services Portal-products.iec.ch The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the criteria(reference number,text, technical publications previews, graphical symbols and the glossary. varietyof committee, ...). It also gives information on projects, replaced and withdrawn publications. content tailored to your needs. IEcJust Published-webstore.iec.ch/justpublished Electropedia-www.electropedia.org The world's leading online dictionary on electrotechnology, detailsall newpublications released.Availableonlineandonce containing more than 22 500 terminological entries in English a month by email. and French, with equivalent terms in 25 additional languages. Also known as the International Electrotechnical Vocabulary IECCustomerServiceCentre-webstore.iec.ch/csc (IEV) online. If you wish to give us yourfeedback on this publication or need further assistance, please contact the Customer Service Centre:[email protected] IEC IECTS61400-28 Edition1.02025-03 TECHNICAL SPECIFICATION Windenergygenerationsystems Part 28: Through-life management and life extension of wind power assets INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 27.180 ISBN 978-2-8327-0295-6 Warning! Make sure that you obtained this publication froman authorized distributor.