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150 employees of the Swiss Federal Nuclear Safety Inspectorate ENSI work every day in various fields for the nuclear safety of the Swiss population.

Background articles

  • Background articles, Posts

    ENSI’s tasks

    150 employees of the Swiss Federal Nuclear Safety Inspectorate ENSI work every day in various fields for the nuclear safety of the Swiss population.

    Domains/Sections, ENSI, ENSI as an employer, ENSI as regulatory body, Organisation
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  • Background articles, Posts

    We vouch for the safety of the population.

    «ENSI’s successful supervisory work largely depends on the quality of its staff. It is not only their experience and special qualifications that are needed, but also their values, their attitude and their ability to enter into a critical, but constructive relationship with operators and with the stakeholders in politics and society.»

    ENSI, ENSI as an employer, ENSI as regulatory body, Mission statement, Organisation
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  • Background articles, Posts

    A credible partner in questions of nuclear safety

    Council’s energy strategy for 2050 is based on a gradual withdrawal from the nuclear energy programme. Under the new conditions, ENSI, as a specialised body of the Confederation that is politically and economically independent, also ensures the safety of nuclear installations.

    ENSI, ENSI Board, Organisation, The ENSI Board
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  • Background articles, Posts

    Convention on Nuclear Safety ensures high global safety standards in nuclear power plants

    The Convention on Nuclear Safety (CNS) is an international agreement aimed at increasing the safety of civil-sector nuclear power plants throughout the world. Switzerland is one of the founder nations of the CNS and is actively involved in strengthening the accord.

    ENSI
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  • Background articles

    ENSI Report on Fukushima IV: Radiological Effects

    Nine months after the disaster at the Fukushima nuclear power plant, Japan is working to contain radiation exposure in the region of the accident. The challenges confronting the country in this endeavour are shown by the new ENSI report on the radiological effects of the accident on 11 March 2011. ENSI already deduced some “Lessons…

    Chernobyl, ENSI, Fukushima
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  • Background articles

    ENSI Report on Fukushima III: Lessons Learned

    The analysis of the accidents at Fukushima confirms that Swiss nuclear plants are safe. However, the Swiss Federal Nuclear Safety Inspectorate (ENSI) has identified a variety of findings (Lessons Learned) from Fukushima which should now be utilised to continue optimising the safety of Switzerland’s nuclear power plants. All the measures that need to be implemented…

    ENSI, Fukushima
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  • Aufräumarbeiten Fukushima
    Background articles

    ENSI Report on Fukushima II: Analysis (People and Organisation)

    Inadequate technical design against tsunamis was indisputably a key factor in the accident at the Fukushima Dai-ichi nuclear plants on 11 March 2011.

    ENSI, Events abroad, Fukushima
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  • Background articles

    The 12 IRRS mission modules

    During the two-week IRRS mission, the IAEA experts will investigate how ENSI performs its supervisory duties. To ensure that this scrutiny of ENSI is conducted in an orderly and systematic manner, the IAEA has developed a list containing about 2000 questions.

    ENSI, IRRS Mis­si­on 2011/2015, Multilateral Cooperation
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  • Background articles

    ENSI Report on Fukushima I: Event sequences (Chronology)

    Immediately after the first live images of the accident in the Fukushima Dai-ichi nuclear power plant were broadcast all over the world on 11 March 2011, the Swiss Federal Nuclear Safety Inspectorate (ENSI) convened a group of internal experts comprising engineers, geophysicists, nuclear physicists and psychologists.

    ENSI, Fukushima
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