Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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Evaluation of MCC seismic response according to the frequency contents through the shake table test

  • Chang, Sung-Jin (Korea Construction and Transport Engineering Development Collaboratory Management Institute) ;
  • Jeong, Young-Soo (Korea Construction and Transport Engineering Development Collaboratory Management Institute) ;
  • Eem, Seung-Hyun (Kyungpook National University, Department of Conversion and Fusion System Engineering) ;
  • Choi, In-Kil (Korea Atomic Energy Research Institute) ;
  • Park, Dong-Uk (Korea Construction and Transport Engineering Development Collaboratory Management Institute)
  • Received : 2020.01.01
  • Accepted : 2020.10.03
  • Published : 2021.04.25
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Abstract

Damage to nuclear power plants causes human casualties and environmental disasters. There are electrical facilities that control safety-related devices in nuclear power plants, and seismic performance is required for them. The 2016 Gyeongju earthquake had many high-frequency components. Therefore, there is a high possibility that an earthquake involving many high frequency components will occur in South Korea. As such, it is necessary to examine the safety of nuclear power plants against an earthquake with many high-frequency components. In this study, the shaking table test of electrical facilities was conducted against the design earthquake for nuclear power plants with a large low-frequency components and an earthquake with a large high-frequency components. The response characteristics of the earthquake with a large high-frequency components were identified by deriving the amplification factors of the response through the shaking table test. In addition, safety of electrical facility against the two aforementioned types of earthquakes with different seismic characteristics was confirmed through limit-state seismic tests. The electrical facility that was performed to the shaking table test in this study was a motor control center (MCC).

Keywords

Acknowledgement

This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry, and Energy (MOTIE) of the Republic of Korea (No. 20201510100010).

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