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Safety aspects of the modernization of I and C and process information in nuclear power plants with special regard to alarm annunciation

Abstract

In particular for older German nuclear power plants there are projects to modernize I and C and process information systems. This modernization mainly aims at improvements in plant operation. For instance, using modern computing technology, the plant operation can be optimized, according to further details. Furthermore, the problem of spare-part keeping for out-dated components can be solved. For modernizing the I and C or the process computer system, safety-relevant aspects have to be taken into account. For instance, the compatibility of the system modification with the existing alarm annunciation concept shall be considered, and for each modernization step, the interfaces between the equipment of different safety significance shall be assessed and observed. The functions and the associated equipment have to be qualified in accordance to their safety significance. At present, the regulatory framework for computer-based instrumentation and control as well as for information systems is being elaborated in Germany and worldwide. Recently, the guidelines of the German Reactor Safety Commission have been extended with regard to the introduction and safety application of modern computer-based I and C in nuclear power plants. Furthermore, some of the essential requirements for design and qualification of modern I and C can be derived from  More>>
Authors:
Seidel, F [1] 
  1. Bundesamt fuer Strahlenschutz, Salzgitter (Germany)
Publication Date:
Sep 01, 1997
Product Type:
Conference
Report Number:
IAEA-IWG-NPPCI-97/1; CONF-9609391-; COG-97-47-I; AECL-11772.
Reference Number:
SCA: 220400; 210000; PA: AIX-28:059517; EDB-97:116754; SN: 97001844482
Resource Relation:
Conference: IAEA specialists` meeting on experience and improvements in advanced alarm annunciation systems in nuclear power plants, Chalk River (Canada), 17-19 Sep 1996; Other Information: PBD: 1997; Related Information: Is Part Of Experience and improvements in advanced alarm annunciation systems in nuclear power plants. Proceedings; PB: 355 p.
Subject:
22 NUCLEAR REACTOR TECHNOLOGY; 21 NUCLEAR POWER REACTORS AND ASSOCIATED PLANTS; ALARM SYSTEMS; MODIFICATIONS; REACTOR CONTROL SYSTEMS; REACTOR INSTRUMENTATION; NUCLEAR POWER PLANTS; REACTOR COMPONENTS; SAFETY; SAFETY ENGINEERING
OSTI ID:
519632
Research Organizations:
International Atomic Energy Agency, Vienna (Austria); Atomic Energy of Canada Ltd., Chalk River, ON (Canada); Ontario Hydro, Toronto, ON (Canada)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Other: ON: DE97640102; TRN: XA9744361059517
Availability:
INIS; OSTI as DE97640102
Submitting Site:
INIS
Size:
pp. 130-139
Announcement Date:

Citation Formats

Seidel, F. Safety aspects of the modernization of I and C and process information in nuclear power plants with special regard to alarm annunciation. IAEA: N. p., 1997. Web.
Seidel, F. Safety aspects of the modernization of I and C and process information in nuclear power plants with special regard to alarm annunciation. IAEA.
Seidel, F. 1997. "Safety aspects of the modernization of I and C and process information in nuclear power plants with special regard to alarm annunciation." IAEA.
@misc{etde_519632,
title = {Safety aspects of the modernization of I and C and process information in nuclear power plants with special regard to alarm annunciation}
author = {Seidel, F}
abstractNote = {In particular for older German nuclear power plants there are projects to modernize I and C and process information systems. This modernization mainly aims at improvements in plant operation. For instance, using modern computing technology, the plant operation can be optimized, according to further details. Furthermore, the problem of spare-part keeping for out-dated components can be solved. For modernizing the I and C or the process computer system, safety-relevant aspects have to be taken into account. For instance, the compatibility of the system modification with the existing alarm annunciation concept shall be considered, and for each modernization step, the interfaces between the equipment of different safety significance shall be assessed and observed. The functions and the associated equipment have to be qualified in accordance to their safety significance. At present, the regulatory framework for computer-based instrumentation and control as well as for information systems is being elaborated in Germany and worldwide. Recently, the guidelines of the German Reactor Safety Commission have been extended with regard to the introduction and safety application of modern computer-based I and C in nuclear power plants. Furthermore, some of the essential requirements for design and qualification of modern I and C can be derived from the existing rules and standards. Particularly, concerning the alarm annunciation system, this report summarizes safety-relevant aspects of the modernization of the instrumentation and control system as well as the process information system in nuclear power plants. (author). 4 refs.}
place = {IAEA}
year = {1997}
month = {Sep}
}