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Seismic Qualification of Safety-Related Electrical Equipment in Nuclear Power Plant


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1 Central Power Research Institute, Bengaluru – 560080, Karnataka, India
     

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Nuclear power plants are critical facility with safety being major concern. Equipment installed in nuclear power plant should have absolute reliability and guaranteed operation under extreme environmental conditions. Earthquake is one of the devastating natural environmental condition. Nuclear power plant equipment and structures should perform its safety related function during and/or after an earthquake. Motor control centres, Distribution boards, Power cum motor control centres, LT panels are part of safety related equipment in nuclear power plant, normal functioning of these panels during and/or after earthquake is highly essential for safe power plant operation. Designing of equipment for seismic dynamic loading and validating design by shake table testing will ensure safe functioning of nuclear power plant in the event of earthquake. Based on geographical location of nuclear power plant seismic loading details are estimated, site specific and floor specific earthquake loads are used for design. Central Power Research Institute (CPRI) is equipped with state-of-the-art tri-axial shake table facility for simulating true earthquake vibration. Seismic qualification methods, codal provisions and seismic qualification of Power cum Motor Control Centre (PMCC) Panel used in nuclear power plant by shake table method is discussed in this paper.

Keywords

Damping, Natural Frequency, Seismic Qualification, PMCC.
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  • IS 1893 (Part 1) : Criteria for earthquake resistant design of structures; 2016.

  • IEEE standard for Seismic qualification of equipment for nuclear power generating stations. IEEE standard 344; 2013

  • IEEE standard 693. IEEE recommended practice for seismic design of substations; 2018.

  • IEC 60068-3-3. Environmental testing - Part 3-3: Supporting documentation and guidance - Seismic test methods for equipment; 2019.

  • IEC 60068-2-57. Environmental testing - Part 2-57: Tests - Test Ff: Vibration - Time-history and sine-beat method; 2013.

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  • Seismic Qualification of Safety-Related Electrical Equipment in Nuclear Power Plant

Abstract Views: 303  |  PDF Views: 0

Authors

R. Panneer Selvam
Central Power Research Institute, Bengaluru – 560080, Karnataka, India
Yamini Gupta
Central Power Research Institute, Bengaluru – 560080, Karnataka, India

Abstract


Nuclear power plants are critical facility with safety being major concern. Equipment installed in nuclear power plant should have absolute reliability and guaranteed operation under extreme environmental conditions. Earthquake is one of the devastating natural environmental condition. Nuclear power plant equipment and structures should perform its safety related function during and/or after an earthquake. Motor control centres, Distribution boards, Power cum motor control centres, LT panels are part of safety related equipment in nuclear power plant, normal functioning of these panels during and/or after earthquake is highly essential for safe power plant operation. Designing of equipment for seismic dynamic loading and validating design by shake table testing will ensure safe functioning of nuclear power plant in the event of earthquake. Based on geographical location of nuclear power plant seismic loading details are estimated, site specific and floor specific earthquake loads are used for design. Central Power Research Institute (CPRI) is equipped with state-of-the-art tri-axial shake table facility for simulating true earthquake vibration. Seismic qualification methods, codal provisions and seismic qualification of Power cum Motor Control Centre (PMCC) Panel used in nuclear power plant by shake table method is discussed in this paper.

Keywords


Damping, Natural Frequency, Seismic Qualification, PMCC.

References





DOI: https://doi.org/10.33686/pwj.v16i1.153169