PSA METHODS FOR TECHNICAL SPECIFICATIONS - INSIGHT GAINED FROM THE RELIABILITY BENCHMARK EXERCISES AND FROM THE DEVELOPMENT OF COMPUTERISED SUPPORT SYSTEMS
This paper describes the philosophy, objectives and the lesoon learned from the Reliability Benchmark Exercises (RBE), organised by the CEC Joint Research Centre (JRC) Ispra, and carried over since some years within a worldwide community of users and developers of PSA methods and applications. The causes of uncertainties and the importance of the modelling of uncertainties, revealed by the exercises, lead to a variety of observations on the use of reliability methods for the definition of technical specification, including the limiting conditions for operation, the requirements of surveillance testing, the safety system set point limits and the administrative controls. The use of PSA techniques, as source of information for a safe operability of a plant, requires validated system models by means of computerised analysis tools, helpful both in the design phase and during operation, when the operator or the surveyor has to define, case by case, the boundary conditions for the case at hand. Computerised analysis tools are being developed within the JRC Ispra with the objective of ameliorating and exploiting further the application of appropriate reliability analyses of plants.
Bibliographic Reference: NEAUNIPEDE SPECIALIST MEETING ON IMPROVING TECHNICAL SPECIFICATIONS, MADRID, SEPT. 7-11, 1987, AVAILABILITY: CEC-LUXEMBOURG, DG XIII/A2, BP 1907, MENTIONING PAPER ORA 33628 E
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Record Number: 1989126070200 / Last updated on: 1989-05-01
Available languages: en