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NKS Programme Area:NKS-R
Research Area:Risk analysis and probabilistic methods
Report Number:NKS-386
Report Title:Addressing off-site consequence criteria using Level 3 PSA
Activity Acronym:L3PSA
Authors:Anders Olsson, Andrew Wallin Caldwell, Gunnar Johanson, Jan-Erik Holmberg, Ilkka Karanta, Karin Fritioff,
Abstract:The goal of this project is to further Nordic understanding of the potential for Level 3 PSA to determine the influences and impacts of off-site consequences, the effectiveness of off-site emergency response, and the potential contributions of improved upstream Level 1 and Level 2 PSAs. This report summarizes the developments from four years of work, but focuses on the finalization of a Nordic Level 3 PSA Guidance Document which has been worked upon mainly during calendar years 2015 and 2016. Other activities that has been conducted, and provided valuable input to the Guidance Document, are an Industrial Survey, a study of potential Risk Metrics, a summary of Regulations & Standards, and two Pilot Studies (one Swedish and one Finnish). The main objective of the pilot studies was to gain practical experience that, together with insights from the other tasks included in the project, could be transferred to recommendations into a final guidance document. During the project, targeted discussions between consultancies, utilities, regulators, and insurance companies on the subject of Level 3 PSA have taken place and at the end of each years working period a seminar has been arranged. The working group has also been engaged in international activities surrounding Level 3 PSA, i.e. the development of the IAEA Level 3 PSA TECDOC and the ANS/ASME Level 3 PSA Standard through the 2016 continuation of the project.
Keywords:PSA, PRA, Level 3 PSA, Probabilistic Consequence Analysis.
Publication date:27 Mar 2017
ISBN:ISBN 978-87-7893-472-7
Number of downloads:2780
Download:pdf NKS-386.pdf
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