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    Ageing Management for Nuclear Power Plants: International Generic Ageing Lessons Learned (IGALL)
    Ageing Management for Nuclear Power Plants: International Generic Ageing Lessons Learned (IGALL)
    Ageing Management for Nuclear Power Plants: International Generic Ageing Lessons Learned (IGALL)
    Ebook225 pages1 hour

    Ageing Management for Nuclear Power Plants: International Generic Ageing Lessons Learned (IGALL)

    By IAEA

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    About this ebook

    The objective of this Safety Report is to provide information on the implementation of IAEA Safety Standards Series SSG-48, to support the ageing management and preparation for the safe, long-term operation of a nuclear power plant. It addresses ageing management of active and passive structures and components for water moderated reactors that can have an effect, directly or indirectly, on the safe operation of the plant and that are susceptible to ageing. This publication is intended for ageing management and long-term operation specialists as well as nuclear power plant managers, regulatory bodies and technical support organizations.
    LanguageEnglish
    PublisherInternational Atomic Energy Agency
    Release dateJun 4, 2024
    ISBN9789201506238
    Ageing Management for Nuclear Power Plants: International Generic Ageing Lessons Learned (IGALL)

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      Book preview

      Ageing Management for Nuclear Power Plants - IAEA

      1.png

      AGEING MANAGEMENT

      FOR NUCLEAR POWER PLANTS:

      INTERNATIONAL GENERIC

      AGEING LESSONS LEARNED

      (IGALL)

      SAFETY REPORTS SERIES No. 82 (Rev. 2)

      AGEING MANAGEMENT

      FOR NUCLEAR POWER PLANTS:

      INTERNATIONAL GENERIC

      AGEING LESSONS LEARNED

      (IGALL)

      INTERNATIONAL ATOMIC ENERGY AGENCY

      VIENNA, 2024

      COPYRIGHT NOTICE

      All IAEA scientific and technical publications are protected by the terms of the Universal Copyright Convention as adopted in 1952 (Geneva) and as revised in 1971 (Paris). The copyright has since been extended by the World Intellectual Property Organization (Geneva) to include electronic and virtual intellectual property. Permission may be required to use whole or parts of texts contained in IAEA publications in printed or electronic form. Please see

      www.iaea.org/publications/rights-and-permissions for more details. Enquiries may be addressed to:

      Publishing Section

      International Atomic Energy Agency

      Vienna International Centre

      PO Box 100

      1400 Vienna, Austria

      tel.: +43 1 2600 22529 or 22530

      email: [email protected]

      www.iaea.org/publications

      © IAEA, 2024

      Printed by the IAEA in Austria

      May 2024

      STI/PUB/2074

      https://doi.org/10.61092/iaea.w3z5-h6uz

      IAEA Library Cataloguing in Publication Data

      Names: International Atomic Energy Agency.

      Title: Ageing management for nuclear power plants: international generic ageing lessons learned (IGALL) rev. 2 / International Atomic Energy Agency.

      Description: Vienna : International Atomic Energy Agency, 2024. | Series: IAEA safety reports series, ISSN 1020–6450 ; no. 82 (rev. 2) | Includes bibliographical references.

      Identifiers: IAEAL 24-01666 | ISBN 978-92-0-150523-1 (paperback : alk. paper) | ISBN 978-92-0-150623-8 (epub) | ISBN 978-92-0-150723-5 (pdf)

      Subjects: LCSH: Nuclear power plants — Safety measures. | Nuclear power plants — Maintenance and repair. | Nuclear power plants — Management.

      Classification: UDC 621.039.58 | STI/PUB/2074

      FOREWORD

      With a growing number of nuclear power plants exceeding 30 years of operation, a number of IAEA Member States have, in line with economic and energy demands, and environmental concerns, started to consider the long term operation of nuclear power plants beyond the period of operation originally anticipated in their design. This publication provides detailed information on plant level and specific (or individual) ageing management programmes and methods (e.g. other plant programmes, time limited ageing analyses), to manage existing and potential ageing effects and degradation mechanisms of structures, systems and components over the full duration of the intended lifetime (including long term operation period).

      Specific ageing management programmes assist operating organizations and regulatory bodies by providing the technical basis for and practical guidance on managing the ageing of mechanical, electrical, and instrumentation and control components, and civil structures in the scope of ageing management. This publication is also intended to provide a common, internationally recognized basis of what constitutes an effective plant level ageing management programme and a knowledge base on ageing management for the design of new nuclear power plants or design reviews. It also contains information on a roadmap with available information on the development, implementation and management of ageing management programmes. The ageing management programmes are developed and applied to maintain the design basis conditions of structures, systems and components that require ageing management over the intended period of operation of a nuclear power plant. This publication documents a collection of proven ageing management programmes for structures, systems and components developed and implemented in various types of nuclear power plant.

      In addition, structures, systems and components whose design life is time limited by design assumptions linked to the operating term are evaluated to ensure that the original design assumptions (also called time limited ageing analyses) remain valid or can be projected until the end of the intended operation. Otherwise, the structures, systems and components can be included in the scope of an appropriate ageing management programme and, therefore, the ageing effects will be adequately managed.

      To ensure that an ageing management programme continues to be effective throughout the design life of a structure, system or component, plant specific and industry operating experience; corrective actions; structure, system and component replacement or refurbishment; and relevant research programmes are evaluated to improve the ageing management programme, as necessary.

      This publication provides information on ageing management in a comprehensive and systematic way such that operating organizations can develop and implement effective ageing management programmes and time limited ageing analyses that enhance safety in accordance with a Member State’s regulatory requirements.

      This publication is an updated and revised version of Ageing Management for Nuclear Power Plants: International Generic Ageing Lessons Learned (IGALL), published in 2020. It complements IAEA Safety Standards Series Nos SSR-2/2 (Rev. 1), Safety of Nuclear Power Plants: Commissioning and Operation, and SSG-48, Ageing Management and Development of a Programme for Long Term Operation of Nuclear Power Plants.

      The IAEA is grateful to all who contributed to the drafting and review of this publication. The IAEA officers responsible for this publication were G. Petofi, M. Marchena, R. Krivanek and K. Mäkelä of the Division of Nuclear Installation Safety.

      EDITORIAL NOTE

      Although great care has been taken to maintain the accuracy of information contained in this publication, neither the IAEA nor its Member States assume any responsibility for consequences which may arise from its use.

      This publication does not address questions of responsibility, legal or otherwise, for acts or omissions on the part of any person.

      Guidance provided here, describing good practices, represents expert opinion but does not constitute recommendations made on the basis of a consensus of Member States.

      The use of particular designations of countries or territories does not imply any judgement by the publisher, the IAEA, as to the legal status of such countries or territories, of their authorities and institutions or of the delimitation of their boundaries.

      The mention of names of specific companies or products (whether or not indicated as registered) does not imply any intention to infringe proprietary rights, nor should it be construed as an endorsement or recommendation on the part of the IAEA.

      The IAEA has no responsibility for the persistence or accuracy of URLs for external or third party Internet web sites referred to in this book and does not guarantee that any content on such web sites is, or will remain, accurate or appropriate.

      The authoritative versions of the publications are the hard copies issued and available as PDFs on www.iaea.org/publications.To create the versions for e-readers, certain changes have been made, including the movement of some figures and tables.

      CONTENTS

      1. INTRODUCTION

      1.1. Background

      1.2. Objective

      1.3. Scope

      1.4. Structure

      2. AGEING MANAGEMENT REVIEW

      2.1. Assessment of the current condition of structures and components

      2.2. Identification of ageing effects and degradation mechanisms

      2.3. Identification of the appropriate programme for ageing management

      2.4. Reporting of the ageing management review

      3. PLANT LEVEL AGEING MANAGEMENT PROGRAMME

      4. AGEING MANAGEMENT PROGRAMMES

      4.1. Scope of the ageing management programme based on understanding ageing

      4.2. Preventive actions to minimize and control ageing effects

      4.3. Detection of ageing effects

      4.4. Monitoring of and analysis of trends for ageing effects

      4.5. Mitigation of ageing effects

      4.6. Acceptance criteria

      4.7. Corrective actions

      4.8. Operating experience feedback and feedback of research and development results

      4.9. Quality management

      5. EVALUATION OF EFFECTIVENESS OF PLANT LEVEL AGEING MANAGEMENT PROGRAMME AND INDIVIDUAL AGEING MANAGEMENT PROGRAMMES

      5.1. Evaluation of effectiveness for long term intervals

      5.2. Evaluation of effectiveness for short term intervals

      6. TIME LIMITED AGEING ANALYSES

      7. OTHER AGEING MANAGEMENT RELATED ACTIVITIES

      8. DEFINITIONS

      Appendix I: LIST OF AGEING MANAGEMENT PROGRAMMES

      Appendix II: LIST OF TIME LIMITED AGEING ANALYSES

      Appendix III: LIST OF OTHER AGEING MANAGEMENT RELATED ACTIVITIES

      Appendix IV: LIST OF PROVEN REGULATORY PRACTICES IN THE OVERSIGHT OF AGEING MANAGEMENT

      Appendix V: DEFINITIONS OF STRUCTURES

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