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Motor-Operated Valve Importance Categorization Study Using Level 1 Internal PSA

[+] Author Affiliations
Yong Suk Lee, Chang Hyun Chung

Seoul National University, Seoul, Korea

Key Yong Sung

Korea Institute of Nuclear Safety, Taejun, Korea

Paper No. ICONE10-22341, pp. 225-228; 4 pages
doi:10.1115/ICONE10-22341
From:
  • 10th International Conference on Nuclear Engineering
  • 10th International Conference on Nuclear Engineering, Volume 2
  • Arlington, Virginia, USA, April 14–18, 2002
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 0-7918-3596-0 | eISBN: 0-7918-3589-8
  • Copyright © 2002 by ASME

abstract

Recently GL 89-10 static and dynamic Motor-Operated Valve (MOV) tests are being performed in Korean nuclear power plants to ensure MOV operability in design basis condition. And GL 96-05 MOV periodic verification testing will be followed after GL 89-10 testing. MOV risk importance categorization will be incorporated in Korean MOV periodic testing program for effective MOV test. In this study, MOVs were preliminarily categorized based on risk importance measures FV and RAW using level 1 internal event PSA. Configuration effect and importance uncertainty effect to risk importance of MOVs were also investigated.

Copyright © 2002 by ASME
Topics: Engines , Valves

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