IEC 62342 : 1.0

Table of Contents

FOREWORD<br>INTRODUCTION<br>1 Scope<br>&nbsp;&nbsp;1.1 Management of physical ageing <br>&nbsp;&nbsp;1.2 Management of technology ageing (obsolescence)<br>&nbsp;&nbsp;1.3 Safety goal of this standard <br>2 Normative references <br>3 Terms and definitions <br>4 Background <br>5 Requirements for ageing management <br>&nbsp;&nbsp;5.1 General <br>&nbsp;&nbsp;5.2 Methodology<br>&nbsp;&nbsp;5.3 Process <br>6 Understanding I&C ageing phenomena<br>&nbsp;&nbsp;6.1 General <br>&nbsp;&nbsp;6.2 Stresses causing ageing <br>&nbsp;&nbsp;6.3 Ageing mechanisms and ageing effects<br>7 Requirements to address ageing effects<br>&nbsp;&nbsp;7.1 Ageing effect identification <br>&nbsp;&nbsp;7.2 Selection of I&C components for ageing evaluation<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.2.1 General <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.2.2 Identification of I&C functions, systems, and <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;equipment <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.2.3 Breakdown of I&C equipment and components<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.2.4 Failure analysis <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.2.5 Susceptibility to ageing<br>&nbsp;&nbsp;7.3 Evaluating ageing degradation of I&C<br>&nbsp;&nbsp;7.4 Ageing stresses<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.4.1 General <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.4.2 External stresses influencing ageing<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.4.3 Internal stresses influencing ageing<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.4.4 Stress history and insecure conditions<br>&nbsp;&nbsp;7.5 Intended function versus qualification<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.5.1 Equipment specification and qualification<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.5.2 Impact on the qualification hypothesis <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.5.3 Applicability of ageing models <br>&nbsp;&nbsp;7.6 Surveillance tests and maintenance requirements<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.6.1 Maintenance and surveillance test processes<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.6.2 Ageing evidence from operating and maintenance <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;research<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.6.3 Sample tests<br>&nbsp;&nbsp;7.7 Support resources <br>&nbsp;&nbsp;7.8 Documentation requirements<br>8 Requirements for ageing control <br>&nbsp;&nbsp;8.1 General<br>&nbsp;&nbsp;8.2 Definition of ageing control programs <br>&nbsp;&nbsp;8.3 Means for I&C ageing management<br>9 Organization<br>&nbsp;&nbsp;9.1 General <br>&nbsp;&nbsp;9.2 Organization for ageing management <br>&nbsp;&nbsp;9.3 Identifying long-term operating strategies and I&C life <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cycle<br>&nbsp;&nbsp;9.4 Organization for the long-term maintenance of I&C <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;equipment <br>&nbsp;&nbsp;9.5 Quality assurance <br>&nbsp;&nbsp;9.6 Reporting <br>Annex A (informative) Guidance on characterizing I&C ageing <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;phenomena and acquiring data for ageing <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;management of I&C components in nuclear <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;power plants<br>Annex B (informative) Examples of ageing management practices <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for selected I&C components in nuclear <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;power plants<br>Annex C (informative) Examples of testing and monitoring <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;techniques for I&C ageing management <br>Bibliography

Abstract

Provides strategies, technical requirements, and recommendations for the management of ageing of nuclear power plant (NPP) instrumentation and control (I&C) systems and associated equipment.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	TC 45