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dc.contributor.authorLiu, Yiliu
dc.contributor.authorRausand, Marvin
dc.date.accessioned2016-04-12T13:15:25Z
dc.date.accessioned2016-04-20T12:40:43Z
dc.date.available2016-04-12T13:15:25Z
dc.date.available2016-04-20T12:40:43Z
dc.date.issued2015
dc.identifier.citationReliability Engineering & System Safety 2015, 145:366-372nb_NO
dc.identifier.issn0951-8320
dc.identifier.urihttp://hdl.handle.net/11250/2386521
dc.description.abstractSome dangerous failures of safety-instrumented systems (SISs) are detected almost immediately by diagnostic self-testing as dangerous detected (DD) failures, whereas other dangerous failures can only be detected by proof-testing, and are therefore called dangerous undetected (DU) failures. Some items may have a DU- and a DD-failure at the same time. After the repair of a DD-failure is completed, the maintenance team has two options: to perform an insert proof test for DU-failure or not. If an insert proof test is performed, it is necessary to decide whether the next scheduled proof test should be postponed or performed at the scheduled time. This paper analyzes the effects of different testing strategies on the safety performance of a single channel of a SIS. The safety performance is analyzed by Petri nets and by approximation formulas and the results obtained by the two approaches are compared. It is shown that insert testing improves the safety performance of the channel, but the feasibility and cost of the strategy may be a hindrance to recommend insert testing.nb_NO
dc.language.isoengnb_NO
dc.publisherElseviernb_NO
dc.subjectSafety-instrumented system; Proof test; Insert test; Dangerous detected failure; Dangerous undetected failurenb_NO
dc.titleProof-testing strategies induced by dangerous detected failures of safety-instrumented systemsnb_NO
dc.typeJournal article
dc.typePeer reviewed
dc.date.updated2016-04-12T13:15:25Z
dc.description.versionacceptedVersion
dc.source.pagenumber366-372nb_NO
dc.source.volume145nb_NO
dc.source.journalReliability Engineering & System Safetynb_NO
dc.identifier.doi10.1016/j.ress.2015.06.016
dc.identifier.cristin1291014
dc.description.localcodeAuthor preprintnb_NO


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