Transactions of the Korean Society of Pressure Vessels and Piping (한국압력기기공학회 논문집)

Korean Society of Pressure Vessels and Piping (한국압력기기공학회)
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Trend of Environmental Qualification of Safety-Related Digital Equipment in Nuclear Power Plants

원자력발전소 안전 관련 디지털 기기의 내환경검증 (Environmental Qualification) 동향

  • Jae Seung Ko ;
  • Sang Eun Kim ;
  • Sung-ryul Kim
  • 고재승 (한국전력기술(주) 원전안전센터 금오공과대학교 디지털융합공학과) ;
  • 김상은 (한국전력기술(주) 원전안전센터) ;
  • 김성렬 (공오공대, 소프트웨어공학과)
  • Received : 2024.05.02
  • Accepted : 2024.06.10
  • Published : 2024.06.30
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Abstract

Environmental qualification is required for safety related electrical equipment under harsh environments located in nuclear power plants according to 10 CFR 50.49 and RG 1.89. As analog technology has recently been replaced by digital technology, NRC established RG 1.209 as a regulatory guideline for environmental qualification of safety related computer-based I&C system located in mild environments, requiring evaluation for electromagnetic compatibility, smoke exposure and type test for actual service conditions such as temperature and humidity. In this paper, the trend of environmental qualification for digital equipment is analyzed by comparing the environmental qualification requirements between digital and analog equipment.

Keywords

References

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