Swiss federal authorities

Search

Nuclear facilities

80 documents
80 documents found. You are viewing page 6 from 9 pages.
  • Background articles, Posts

    Safety analyses: The latest methods

    «Nuclear power plants are among the most robust industrial constructions in Switzerland. We ensure that operators constantly question the safety of their installations, calculate any residual risk using the latest methods and constantly improve the resilience of the installations with targeted upgrading. ENSI’s requirements with regard to earthquake safety, for instance, are considered to be…

    ENSI, ENSI as an employer, Nuclear Facilities
    Read the article
  • News, Posts

    Updated seismic hazard assumptions require new safety cases to be drawn up for Swiss nuclear power plants

    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 powerful…

    Earthquakes, Nuclear Facilities, PEGASOS
    Read the article
  • Documents

    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
    Read the article
  • Documents

    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
    Read the article
  • Documents

    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
    Read the article
  • News

    ENSI reviews Axpo’s project plan for the safety case of the Beznau 1 reactor pressure vessel

    Axpo submitted today a project plan (road map) to ENSI, the Swiss Federal Nuclear Safety Inspectorate, outlining procedures for the characterisation and evaluation of the indications in the base material of the Beznau 1 reactor pressure vessel. ENSI will review this plan in collaboration with a group of international experts.

    Beznau Nuclear Power Plant, Doel and Tihange, Nuclear Facilities
    Read the article
  • News

    “Only an ultrasonic examination is capable of providing authoritative information regarding the current condition of the reactor pressure vessel.”

    The Swiss Federal Nuclear Safety Inspectorate (ENSI) requires the Beznau nuclear power plant to provide proof that the reactor pressure vessel is safe. In an interview, Georg Schwarz, the Director of the Division for Nuclear Power Plants and Deputy Director of ENSI, explains the importance of carrying out ultrasonic inspections.

    Beznau Nuclear Power Plant, Doel and Tihange, Nuclear Facilities
    Read the article
  • Documents

    Guideline for the Manufacture and Use of Packaging

    The „Quality Management Guideline for the Manufacture and Use of Packaging for the Transport of Radioactive Material“ provides recommendations for designers, manufacturers, owners and users of packages for radioactive material either subject to mandatory approval or subject to mandatory testing. The guideline states more precisely the quality assurance requirements referenced in sub-section 1.7.3 of the…

    Documents, Nuclear Facilities, Other documents, Transport, Transport and Containers
    Read the article
  • News

    Beznau 2 can continue operating until the start of the annual overhaul in mid-August

    Block 2 of the Beznau nuclear power plant does not have to be shut down early. The operator Axpo was able to plausibly demonstrate to the Swiss Federal Nuclear Safety Inspectorate ENSI that even if one were to assume that the reactor pressure vessel of Beznau 2 had similar material defects to those in Beznau…

    Beznau Nuclear Power Plant, Doel and Tihange, Nuclear Facilities
    Read the article