Individual:
http://rdf.iit.demokritos.gr/2014/iaeaSafetyGlossary/id528
Annotations (2)
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nreo:canonicalLabel "probabilistic safety assessment (PSA)" (en)
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skos:definition "A comprehensive, structured approach to identifying 'failure' 'scenarios', <br/>
constituting a conceptual and mathematical tool for deriving numerical <br/>estimates of 'risk'.<br/>
Three levels of 'probabilistic safety assessment' are generally recognized. Level 1 <br/>comprises the 'assessment' of plant 'failur'es leading to determination of the <br/>frequency of core damage. Level 2 includes the 'assessment' of <i>containment<br/></i>response, leading, together with Level 1 results, to the determination of <br/>frequencies of 'failure' of the 'containment' and release to the environment of a <br/>given percentage of the reactor core’s inventory of radionuclides. Level 3 includes <br/>the 'assessment' of 'off-site' consequences, leading, together with the results of Level <br/>2 'analysis', to estimates of public 'risks'. (See, for example, Ref. [34].)<br/>
<i><b>living probabilistic safety assessment.</b></i> A 'probabilistic safety assessment' that <br/>is updated as necessary to reflect the current 'design' and operational features, <br/>and is documented in such a way that each aspect of the 'PSA' 'model' can be <br/>directly related to existing plant information, plant documentation or the <br/>analysts’ assumptions in the absence of such information.<br/>" (en)
Types (1)
Usage (12)