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Approaches for Overall Instrumentation and Control Architectures of Nuclear Power Plants

English STI/PUB/1821 978-92-0-102718-4
55 9 30.00 2018

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Description

This publication concerns approaches for establishing the overall instrumentation and control (I&C) architecture of a nuclear power plant. It describes the characteristics and content of general I&C architectures, presents architectural principles and addresses the limitation of the potential effects of postulated common cause failures. It introduces an architectural development process and discusses technical considerations for the design. The publication emphasizes safety aspects and addresses the defence in depth concept, but also includes consideration of plant availability, operability and security. It recognizes the potential for adverse effects of I&C failures on plant availability and operability that may arise from increased architectural complexity, and describes the optimization of I&C functionality and features that need to be implemented.

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Keywords

IAEA Nuclear Energy, Reactor Technology, Nuclear Power Plants, Instruments, Nuclear Reactors, Control, Safety Measures, Automatic Control, Instrumentation and Control, Control Architectures, Defence in Depth, Plant Availability, Operability, Security, Failures, Optimization, Functionality, Best Practices, Benefits, Architectural Principles, Design, Member States, Implementation, Licensing, Subject System, Common Cause Failures, CCF, Mechanical and Functional Architectures ,Roles, Actions, Electrical Systems, Cable Routing, Verification, Validation, Regulatory Bodies, Concepts, Computer Security Zones, Hazardous Environment, Monitoring, Diagnostics, Testing, Upgrades, Modernization, Constraints, Life Cycle, Recommendations, Control Room

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