On the use of a new possibilist importance measure to reduce Safety Integrity Level uncertainty

Mohamed Sallak (1) , Christophe Simon (1) , Jean-François Aubry (1)

1 CRAN - Centre de Recherche en Automatique de Nancy

Safety Instrumented Systems (SIS) play a key role in process industry to achieve safety. One of the most important criteria for SIS design is the requirement that the user assigns and verify Safety Integrity Level (SIL) of SIS. This paper proposes a new possibilist importance measure to reduce the SIL uncertainty when the SIS components failure probabilities are uncertain.

Mots clés: IEC 61508.; Possibilist importance measure; Safety Instrumented Systems (SIS); Safety Integrity Level (SIL); ANSI/ISA S84.01-1996; IEC 61508

Domaines: Automatique / Robotique

Mohamed Sallak, Christophe Simon, Jean-François Aubry. On the use of a new possibilist importance measure to reduce Safety Integrity Level uncertainty. The 4th International Conference on Safety and Reliability, KONBIN'06, Jun 2006, Kraków, Poland. ⟨hal-00104712⟩