Risk-informed categorisation

Jan-Erik Holmberg, Ilkka Männistö

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleProfessional


Risk-informed categorisation is based on utilising PSA information in a consistent way to select most cost-effective methods to control risk associated with systems, structures and components. In the presented method, an item's risk significance is broken in two parts: probability of failure and the consequence of failure. Higher value in either will possibly mean a higher risk category, depending on the limit values for each category. Risk categorisation aims at identification of items for improved reliability or added redundancy, versus the mostly reliability enhancing measures in safety classification.
Original languageEnglish
Title of host publicationSAFIR, The Finnish Research Programme on Nuclear Power Plant Safety 2003-2006
Subtitle of host publicationInterim Report
EditorsHanna Räty, Eija Karita Puska
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
ISBN (Electronic)951-38-6516-9
ISBN (Print)951-38-6515-0
Publication statusPublished - 2004
MoE publication typeD2 Article in professional manuals or guides or professional information systems or text book material

Publication series

SeriesVTT Tiedotteita - Meddelanden - Research Notes


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