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

Korean Society of Pressure Vessels and Piping (한국압력기기공학회)
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A study on technical standards and procedures related to qualification of nuclear safety grade equipment

원전 안전등급설비의 기기검증 관련 기술표준 및 절차

  • Received : 2018.10.31
  • Accepted : 2019.06.17
  • Published : 2019.06.30
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Abstract

In this paper, the regulations and technical standards related to qualification of safety grade equipment in nuclear power plants are critically reviewed with the qualification procedure in terms of structures, systems, and equipment in nuclear power plants. These facilities should be designed and constructed to protect from natural conditions or disasters and to perform their safety functions even in case of postulated accidents. Equipment Qualification is to demonstrate that the safety related equipment is designed and constructed to perform their safety functions under normal and accident conditions. It is classified into environmental qualification and seismic qualification.

Keywords

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Fig. 1 Flowchart of equipment qualification

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Fig. 2 Flowchart of seismic qualification

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Fig. 3 Example of Test Response Spectrum(TRS)

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Fig. 4 Example of Operating Basis Earthquake(OBE)

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Fig. 5 Example of Safe Shutdown Earthquake(SSE)

References

  1. Reg. Guide 1.89 Rev.1, 1984, "Environmental Qualification of Certain Electric Equipment Important to Safety for Nuclear Power Plants," U.S. Nuclear Regulatory Commission, Washington, DC.
  2. Reg. Guide 1.100 Rev.2, 1988, "Seismic Qualification of Electric and Mechanical Equipment for Nuclear Power Plants," U.S. Nuclear Regulatory Commission, Washington, DC.
  3. IEEE 323, 2003, "Standard for Qualifying Class 1E Equipment for Nuclear Power Generating Stations," Institute of Electrical and Electronic Engineers, New York.
  4. IEEE 344, 2004, "Recommended Practice for Seismic Qualification of Class 1E Equipment for Nuclear Power Generating Stations," Institute of Electrical and Electronic Engineers, New York.