Safety integrity requirements for computer based I&C systems
- Electricite de France, Chatou (France)
- Electricite de France, Evry (France)
In order to take into account increasingly demanding functional requirements, many instrumentation and control (I&C) systems in nuclear power plants are implemented with computers. In order to ensure the required safety integrity of such equipment, i.e., to ensure that they satisfactorily perform the required safety functions under all stated conditions and within stated periods of time, requirements applicable to these equipment and to their life cycle need to be expressed and followed. On the other hand, the experience of the last years has led EDF (Electricite de France) and its partners to consider three classes of systems and equipment, according to their importance to safety. In the EPR project (European Pressurized water Reactor), these classes are labeled E1A, E1B and E2. The objective of this paper is to present the outline of the work currently done in the framework of the ETC-I (EPR Technical Code for I&C) regarding safety integrity requirements applicable to each of the three classes. 4 refs., 2 figs.
- Research Organization:
- American Nuclear Society (ANS), La Grange Park, IL (United States)
- OSTI ID:
- 552142
- Report Number(s):
- CONF-970607-Vol.2; TRN: 98:001549
- Resource Relation:
- Conference: ARS `97: American Nuclear Society (ANS) international meeting on advanced reactors safety, Orlando, FL (United States), 1-5 Jun 1997; Other Information: PBD: 1997; Related Information: Is Part Of Proceedings of the international topical meeting on advanced reactors safety: Volume 2; PB: 715 p.
- Country of Publication:
- United States
- Language:
- English
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