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

By IAEA

This Safety Report provides detailed information on ageing management programmes and time limited ageing analyses to manage existing and potential ageing effects and degradation mechanisms of structures, systems and components (SSCs) that are important to the safety of nuclear power plants. It has been written to assist operating organizations and regulatory bodies by specifying a technical basis and providing practical guidance on managing ageing of mechanical and electrical instrumentation and control components, and civil structures. It also provides a common, internationally recognized basis of what constitutes an effective ageing management programme, a knowledge base on ageing management for design of new plants and design reviews, and a roadmap to available information on ageing management.

• Language: English
• Publisher: International Atomic Energy Agency
• Release date: Sep 4, 2020
• ISBN: 9789201061225

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AGEING MANAGEMENT

FOR NUCLEAR POWER PLANTS:

INTERNATIONAL GENERIC

AGEING LESSONS LEARNED

(IGALL)

SAFETY REPORTS SERIES No. 82 (Rev. 1)

AGEING MANAGEMENT

FOR NUCLEAR POWER PLANTS:

INTERNATIONAL GENERIC

AGEING LESSONS LEARNED

(IGALL)

INTERNATIONAL ATOMIC ENERGY AGENCY

VIENNA, 2020

COPYRIGHT NOTICE

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© IAEA, 2020

Printed by the IAEA in Austria

August 2020

STI/PUB/1895

IAEA Library Cataloguing in Publication Data

Names: International Atomic Energy Agency.

Title: Ageing management for nuclear power plants: International Generic Ageing Lessons Learned (IGALL) / International Atomic Energy Agency.

Description: Vienna : International Atomic Energy Agency, 2020. | Series: IAEA safety reports series, ISSN 1020–6450 ; no. 82 (rev. 1) | Includes bibliographical references.

Identifiers: IAEAL 20-01326 | ISBN 978–92–0–107419–5 (paperback : alk. paper) | ISBN 978–92–0–105220–9 (pdf)

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

Classification: UDC 621.039.58 | STI/PUB/1895

FOREWORD

As of April 2020, of the total number of nuclear power plants operating in the world, approximately 25% had been in operation for more than 40 years and about 68% for more than 30 years. As a consequence, a number of IAEA Member States are considering long term operation of nuclear power plants beyond the time frame originally anticipated.

This publication is an updated and revised version of Ageing Management for Nuclear Power Plants: International Generic Ageing Lessons Learned (IGALL), published in 2015. 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.

This publication provides detailed information on specific programmes to manage existing and potential ageing and degradation of structures, systems and components that will assist operating organizations and regulatory bodies by specifying a technical basis for and practical guidance on managing ageing of mechanical, electrical and instrumentation and control components, and civil structures important to safety. It also serves as a roadmap to available information on ageing management and provides a common, internationally recognized basis on what constitutes an effective ageing management programme in the design of new plants, design reviews and safety reviews. The publication contains a collection of proven ageing management programmes for structures, systems and components important to safety developed and implemented in various types of water moderated reactor, which will be periodically updated.

The IAEA is grateful to all who contributed to the drafting and review of this publication, in particular E. Gallitre (France), R.-M. Zander (Germany), M.A. Calatayud (Spain), J. Heldt (Switzerland) and A. Hiser (United States of America). The IAEA officers responsible for this publication were R. Krivanek, K. Mäkelä and O. Polyakov 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