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Ageing surveillance programmes in Swiss nuclear power plants

  • S. F Schulz and Ph. Tipping
Published/Copyright: March 14, 2022
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Abstract

Ageing surveillance programmes for Swiss nuclear power plants were started about ten years ago. The following contribution gives an overview of these programmes. They deal with ageing phenomena of materials of mechanical and electrical components, as well as civil structures. For each safety relevant component, the known ageing mechanisms are identified, and the maintenance, testing, inspection and monitoring programmes are then examined with respect to their suitability for detecting the ageing degradation. Programmes and procedures may be adjusted, or new ones introduced to ensure state of science and technology ageing surveillance. Documentation of the plant-specific ageing surveillance programmes is prepared by the nuclear power plant operators and given to the Swiss Federal Nuclear Safety Inspectorate for assessment. Experience with the ageing surveillance programmes over the last ten years shows favourable results for the monitoring of ageing and safe operation of the plants.

Abstract

Die Alterungsüberwachungsprogramme für die Schweizer Kernkraftwerke wurden vor zehn Jahren eingeführt und werden im Folgenden vorgestellt. Sie behandeln die Werkstoffalterung von mechanischen und elektrischen Komponenten und von Bauwerken. Die in der Technik bekannten Alterungsmechanismen werden für jedes sicherheitsrelevante Bauteil identifiziert, und Instandhaltungs-, Prüf-, Inspektions-und Monitoring-Programme werden im Hinblick auf ihre Aussagekraft zu Alterungsschäden untersucht. Wo erforderlich werden Programme und Verfahrensweisen angepasst oder neu eingeführt, um eine dem Stand von Wissenschaft und Technik entsprechende Alterungsüberwachung sicherzustellen. Die Dokumentation zu den Alterungsüberwachungsprogrammen wird von den Betreibern ausgearbeitet und der Hauptabteilung für die Sicherheit der Kernanlagen zur Beurteilung vorgelegt. Die Erfahrung mit diesen Programmen zeigt in den letzten zehn Jahren gute Resultate für die Beurteilung des Alterungszustandes und für den sicheren Betrieb der Anlagen.

References

1 Shah, V. N.; MacDonald, P. E.: Aging and life extension of major light water reactor components. Elsevier, Amsterdam, 1993Search in Google Scholar

2 USNRC-NRR: Generic aging lessons learned (GALL) report, NUREG-1801, April 2001Search in Google Scholar

3 IAEA Safety Series No. 50-P-3 “Data Collection and Record Keeping for the Management of Nuclear Power Plant Ageing”, IAEA Safety Practices, Wien 1991Search in Google Scholar

4 IAEA Technical Reports Series No. 338 “Methodology for the Management of Ageing of Nuclear Power Plant Components Important to Safety”, IAEA, Wien 1992Search in Google Scholar

5 IAEA Safety Reports Series No. 15 “Implementation and Review of a Nuclear Power Plant Ageing Management Programme”, IAEA, Wien 1999Search in Google Scholar

Received: 2002-06-19
Published Online: 2022-03-14

© 2002 Carl Hanser Verlag, München

Articles in the same Issue

  1. Contents
  2. Calendar of events • Veranstaltungskalender
  3. Calendar of events
  4. Summaries
  5. Summaries/Kurzfassungen
  6. Ageing management: international developments and German activities
  7. Notes
  8. Note • Mitteilung
  9. IAEA programme on managing safety aspects of ageing nuclear power plants
  10. Note • Mitteilung
  11. Note • Mitteilung
  12. Regulatory and safety aspects of ageing in nuclear power plants
  13. Books • Bücher
  14. Books • Bücher
  15. Ageing management review for reactor license renewal
  16. Books • Bücher
  17. Ageing surveillance programmes in Swiss nuclear power plants
  18. Bücher • Books
  19. Current status of countermeasures for ageing of nuclear power plants in Japan
  20. Generic evaluation of operating experience with regard to the ageing behaviour of passive mechanical components in nuclear power plants
  21. Books • Bücher
  22. Ageing management in German nuclear power stations from an expert’s point of view
  23. Books • Bücher
  24. The role of PLiM technologies in CANDU TM ongoing aging management, life extension, and new designs
  25. Most significant ageing problems actually experienced and mitigating solutions implemented for WWER primary equipment
  26. Plant life management: an integral part of operation and maintenance policy
  27. Books • Bücher
  28. Ageing management within British Energy in support of safe, reliable operation and lifetime extension objectives
  29. Books
  30. Differential Cross Sections of Neutron Scattering on elemental Silicon at Energies between 7.89 MeV and 13.85 MeV
  31. Online-monitoring of motor operated valves
  32. German utility nuclear power plant ageing management concept
  33. Framatome ANP GmbH Concept of Plant Life Management (PLIM)
  34. Notes
  35. Note • Mitteilung
  36. Advances
  37. Advances • Patente
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