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  • 2016 Research and Experience Report – ENSI-AN-9961

    Download document is in German.

    Annual reports, Documents, Events abroad, Nuclear Facilities, Nuclear Power Plants, Research
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  • 2015 ENSI Oversight Report – ENSI-AN-9671

    Download document is in German.

    Annual reports, Documents, Events, Nuclear Facilities, Nuclear Power Plants
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  • Radiological Protection report 2015 – ENSI-AN-9663

    In its 12th Annual Report on Radiological Protection, ENSI summarises and analyses the release of radioactive materials from Swiss nuclear facilities. All nuclear facilities complied with the limits in 2015 and in some cases by a very large margin.

    Annual reports, Documents, Emissions, Measured Value about Swiss nuclear power plants, Radiation Protection
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  • ENSI Hybrid Model: Hazard Figures

    Although nuclear power plants are some of the most earthquake-resistant buildings in Switzerland, earthquakes are a major part of the risk of nuclear power plants. “This is precisely why we are so keen to ensure that nuclear plant operators regularly update their comprehensive seismic safety cases and that these then comply with the latest scientific…

    Documents, Earthquakes, Nuclear Facilities, Other documents, PEGASOS, Periodic Safety Inspection and Safety Verification
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  • PEGASOS: Updated seismic hazard assumptions for Swiss NPPs

    ENSI-AN-9657 ENSI closely followed the PRP project from its inception with an experienced expert team. In its final review report ENSI acknowledged that the state-of-the-art in probabilistic seismic hazard assessment was further improved by the PRP project. ENSI assessed the achieved refinements in the project focal points – the «ground motion characterization» (subproject 2) and the…

    Documents, Earthquakes, Nuclear Facilities, Other documents, PEGASOS, Periodic Safety Inspection and Safety Verification
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  • ENSI Final Report: Review Approach and Comments Concerning the PEGASOS Refinement Project (PRP) and the PRP Summary Report

    ENSI-AN-9060 The Swiss Federal Nuclear Safety Inspectorate ENSI has set out new requirements for assessing seismic hazards in Swiss nuclear power plants in the light of the latest scientific findings. Plant operators are required to provide further proof, in three stages, by the end of 2020, that their plants can withstand even an extremely unlikely…

    Documents, Earthquakes, Nuclear Facilities, Other documents, PEGASOS, Periodic Safety Inspection and Safety Verification
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  • 2015 Research and Experience Report – ENSI-AN-9601

    This Research and Experience Report describes and rates the findings of the regulatory research into safety, specific instructive events from nuclear facilities abroad, news regarding the international cooperation as well as current changes and developments in underlying surveillance principles in 2015. Download document is in German.

    Annual reports, Documents, Events abroad, Nuclear Power Plants, Research
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  • Probabilistic Safety Analysis (PSA): Applications

    ENSI-A06/e This guideline formalizes the requirements for the application of Probabilistic Safety Analysis (PSA) for nuclear power plants. It presents the general principles, the requirements for maintenance and upgrade of the PSA, as well as the minimum required scope of PSA applications. The risk measure and evaluation criteria to be applied are defined for these…

    Documents, ENSI, Guidelines, Legal and Regulatory Framework
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  • 2014 Research and Experience Report – ENSI-AN-9157

    This Research and Experience Report describes and rates the findings of the regulatory research into safety, specific instructive events from nuclear facilities abroad, news regarding the international cooperation as well as current changes and developments in underlying surveillance principles in 2014. Download document in German

    Annual reports, Documents, Events abroad, Nuclear Facilities, Nuclear Power Plants, Research
    Read the article