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Method implemented by the IRSN for the evaluation of uncertainties in level 2 PSA. Some examples



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Mot de passe :

E. Raimond, N. Rahni, M. Villermain,
OECD/NEA/CSNI Workshop on evaluation of uncertainties in relation to severe accidents and level 2 PSA, Aix-en-Provence, 7-9 novembre 2005,
Rapport DSR 94

Type de document > *Rapport/contribution à GT (papier ou CD-Rom), *Congrès/colloque

Mots clés > sûreté, accident grave, EPS-2, incertitude, rejets

Unité de recherche > IRSN/DSR/SAGR

Auteurs > RAHNI Nadia, RAIMOND Emmanuel, VILLERMAIN Marc

Date de publication > 29/11/2005


During the last few years, the IRSN has developed a level 2 PSA for French 900 MWe PWRs. The last version of the study has been completed in 2003. This version is going to be updated to take into account hydrogen recombiners installation and modifications envisaged for third decennial visit of these plants.

The objective of this paper is to comment the methodological approach of the IRSN for uncertainties assessment in level 2 PSA, with examples for accident progression event tree and releases assessment.