IEC61508-vs-ISO9000

FUNCTIONAL SAFETY:A TOTAL QUALITY APPROACHL.Scibile,P.Ninin,S.GrauAbstractMany systems used by the CERN accelerators and the technical infrastructure have to respectstringent requirements in terms of reliability,safety,availability and maintainability either foroperation,security,or legal aspects such as the one required by French Regulatory Authority:the INB (Installations Nucleaires de Base )The functional safety approach provides astructured method for achieving these requirements.In particular,the new IEC 61508standards give guidance for system design and an effective and safe system exploitation.When designing new systems,it also sets out a generic approach for all the safety lifecycleactivities that are the base for a total quality approach:requirements,design,realization,installation,operation,maintenance and even the decommissioning.This paper gives theresults of the first attempts made at the CERN Technical Service division (ST)to use thesestandards and gives some suggestions on how to improve functional safety in a particleaccelerator environment.