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Review Criteria for Reliability from Analysis of LOOP frequency in NPPs

소외전원상실사고 빈도수 분석을 통한 원전 신뢰도 검토기준

  • Moon, Su-Cheol (I&iC&Electrical System, Korea Institute of Nuclear Safety) ;
  • Kim, Kern-Joong (Dept. of Electrical Engineering, National Chungnam University)
  • Received : 2012.04.03
  • Accepted : 2013.01.28
  • Published : 2013.03.01

Abstract

LOOP(Loss of Offsite Power) and SBO(Station Blackout) events have been occurring in nuclear power plants should be reviewed and be controlled on important electrical equipments by professional engineer to prevent and to safety improvement from safety assessment and reliability analysis report. LOOP and SBO occasionally happened by internal or external causes. This paper contained that LOOP frequency in the United States NPPs and in the domestic NPPs have compared and analyzed data by the past lessons and probabilistic statistics. Additionally will be installed MG(Mobile Generator) according to the lessons of Fukushima nuclear accident in Japan, which CDF(Core Damage Frequency) and LOOP frequency have reconsidered. And this paper proposed to reduce reliability criteria using PSA(Probabilistic Safety Analysis).

Keywords

References

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