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Requirements on HRA?: A review of requirements on HRA from international standards, swedish NPP's and interviews with performers in the field.
Linköping University, Department of Computer and Information Science.
2011 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

HRA (Human Reliability Analysis) is a part of PSA (Probabilistic Risk Assessment) to evaluate if and which human actions that could contribute to a core damage in a NPP (Nuclear Power Plant). This thesis investigates requirements that are put on HRA in connection to requirements that are put on the PSA, both from the view of international standard but also through HRA method descriptions and performed analyses from Swedish NPPs as well as through interviews with performers in the field.

The results shows that the requirements that are put on the HRA from the international standards are generic (few specific requirements are to be found) and can be said to be reflected in the performed analysis on Swedish NPPs. Another result shows that there isn't much difference between different NPP units on how the HRA is performed; the general requirements from the international standards are most often followed in some sense. There is more a questions of level of detail and/or traceability described in the analysis that can be said to be of difference. The results also shows on the fact that it is very hard to transform the more qualitative results from the HRA into a quantitative value that can work as an input to the PSA. Some of the interviewees expressed a sort of resignation that it felt as if the qualitative parts of the HRA weren't seen in the same light as the quantitative parts, and that there is no consensus on how for example factors that influence the work of the operators (such as stress, the quality of instructions, complexity of the task or available time) in a reliable way can be evaluated quantitatively. This is something that further research could be focused on.

Place, publisher, year, edition, pages
2011. , 87 p.
National Category
Human Computer Interaction
Identifiers
URN: urn:nbn:se:liu:diva-63915ISRN: LIU-IDA/KOGVET-A--10/005--SEOAI: oai:DiVA.org:liu-63915DiVA: diva2:384140
Uppsok
Social and Behavioural Science, Law
Available from: 2011-01-11 Created: 2011-01-07 Last updated: 2011-01-11Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf