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BS IEC 61504:2017

Current

Current

The latest, up-to-date edition.

Nuclear facilities. Instrumentation and control systems important to safety. Centralized systems for continuous monitoring of radiation and/or levels of radioactivity

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

20-09-2017

$520.16
Including GST where applicable

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Design requirements
5 General test procedures
6 Documentation
Annex A (informative) - Cross-references for centralized
        system for radiation monitoring standards
Bibliography

Pertains to centralized systems having a direct role in the achievement or maintenance of radiation protection in nuclear facilities.

Committee
NCE/8
DevelopmentNote
Supersedes 98/716241 DC. (06/2005) Supersedes 16/30324061 DC. (10/2017)
DocumentType
Standard
Pages
34
PublisherName
British Standards Institution
Status
Current
Supersedes

This document supplements IEC 61559-1 to include radiation monitoring functions important to safety that are not within the scope of IEC 61559-1. It applies to centralized systems having a direct role in the achievement or maintenance of radiation protection in nuclear facilities. These systems perform functions such as:

  • radiation protection of plant discharge;

  • interlock of control functions to prevent or to mitigate accidental release of radioactive material;

  • radiation and environmental monitoring functions to support monitoring of and response to accidents;

  • provide information to process control or safety systems for use in control or interlock functions.

This document defines the communication criteria to link distributed radiation monitoring equipment in the facility, integrates data processing, storage, optimization, and correlation of data flow and displays, and provides criteria for the interface between monitors of different safety classes.

It will not directly apply to the design and testing of detection and measurement assemblies except as necessary to define the interface with the central computer. Requirements for these assemblies are contained in existing standards.

This document describes the integration of functions including equipment such as those described in IEC 60761-1, IEC 60761-2, IEC 60761-3, IEC 60761-4, IEC 60761-5, IEC 60768, IEC 60861, IEC 60910, IEC 60951-1 IEC 60951-2, IEC 60951-3, IEC 60951-4, IEC 60951-5, IEC 61031, IEC 61250, IEC 62302 and IEC 62303, into a centralized system. The requirements of system-level components (central computer, subsystem computers, operator consoles, and interconnections) are discussed. For detector assemblies, processing assemblies and alarm assemblies, this document contains only the requirements needed to allow connection into the central computer. The standards referenced above contain the specific requirements for these components.

This document identifies requirements pertinent to the integration of the above functions into a centralized system. Requirements for general and design characteristics, electrical performance requirements and tests, mechanical performance and tests, software performance requirements and tests, environmental characteristics performance requirements and tests and documentation are considered by referring to IEC 62705.

Certain complete centralized systems for radiation monitoring may be entirely implemented with direct-connected analogue/relay technology. This document does not apply to such systems.

Standards Relationship
IEC 61504:2017 Identical

IEC 60761-5:2002 Equipment for continuous monitoring of radioactivity in gaseous effluents - Part 5: Specific requirements for tritium monitors
IEC 60951-2:2009 Nuclear power plants - Instrumentation important to safety - Radiation monitoring for accident and post-accident conditions - Part 2: Equipment for continuous off-line monitoring of radioactivity in gaseous effluents and ventilation air
IEC 61559-2:2002 Radiation in nuclear facilities - Centralized systems for continuous monitoring of radiation and/or levels of radioactivity - Part 2: Requirements for discharge, environmental, accident, or post-accident monitoring functions
IEC 61226:2009 Nuclear power plants - Instrumentation and control important to safety - Classification of instrumentation and control functions
IEC 61500:2009 Nuclear power plants - Instrumentation and control important to safety - Data communication in systems performing category A functions
IEC 60532:2010 Radiation protection instrumentation - Installed dose rate meters, warning assemblies and monitors - X and gamma radiation of energy between 50 keV and 7 MeV
IEC 62138:2004 Nuclear power plants - Instrumentation and control important for safety - Software aspects for computer-based systems performing category B or C functions
IEC 62705:2014 Nuclear power plants - Instrumentation and control important to safety - Radiation monitoring systems (RMS): Characteristics and lifecycle
IEC 61772:2009 Nuclear power plants - Control rooms - Application of visual display units (VDUs)
IEC 61559-1:2009 Radiation protection instrumentation in nuclear facilities - Centralized systems for continuous monitoring of radiation and/or levels of radioactivity - Part 1: General requirements
IEC 61250:1994 Nuclear reactors - Instrumentation and control systems important for safety - Detection of leakage in coolant systems
IEC 62003:2009 Nuclear power plants - Instrumentation and control important to safety - Requirements for electromagnetic compatibility testing
IEC 62303:2008 Radiation protection instrumentation - Equipment for monitoring airborne tritium
IEC 60761-2:2002 Equipment for continuous monitoring of radioactivity in gaseous effluents - Part 2: Specific requirements for radioactive aerosol monitors including transuranic aerosols
IEC 60761-3:2002 Equipment for continuous monitoring of radioactivity in gaseous effluents - Part 3: Specific requirements for radioactive noble gas monitors
IEC 60761-4:2002 Equipment for continuous monitoring of radioactivity in gaseous effluents - Part 4: Specific requirements for radioactive iodine monitors
IEC 60987:2007+AMD1:2013 CSV Nuclear power plants - Instrumentation and control important to safety - Hardware design requirements for computer-based systems
IEC 60951-1:2009 Nuclear power plants - Instrumentation important to safety - Radiation monitoring for accident and post-accident conditions - Part 1: General requirements
IEC 61497:1998 Nuclear power plants - Electrical interlocks for functions important to safety - Recommendations for design and implementation
IEC 61031:1990 Design, location and application criteria for installed area gamma radiation dose rate monitoring equipment for use in nuclear power plants during normal operation and anticipated operational occurrences
IEC 60910:1988 Containment monitoring instrumentation for early detection of developing deviations from normal operation in light water reactors
IEC 62302:2007 Radiation protection instrumentation - Equipment for sampling and monitoring radioactive noble gases
IEC 60951-3:2009 Nuclear power plants - Instrumentation important to safety - Radiation monitoring for accident and post-accident conditions - Part 3: Equipment for continuous high range area gamma monitoring
IEC 60861:2006 Equipment for monitoring of radionuclides in liquid effluents and surface waters
IEC 61771:1995 Nuclear power plants - Main control-room - Verification and validation of design
IEC 60951-4:2009 Nuclear power plants - Instrumentation important to safety - Radiation monitoring for accident and post-accident conditions - Part 4: Equipment for continuous in-line or on-line monitoring of radioactivity in process streams
IEC 60960:1988 Functional design criteria for a safety parameter display system for nuclear power stations
IEC 60880:2006 Nuclear power plants - Instrumentation and control systems important to safety - Software aspects for computer-based systems performing category A functions
IEC 60761-1:2002 Equipment for continuous monitoring of radioactivity in gaseous effluents - Part 1: General requirements
IEC 61513:2011 Nuclear power plants - Instrumentation and control important to safety - General requirements for systems
IEC 60768:2009 Nuclear power plants - Instrumentation important to safety - Equipment for continuous in-line or on-line monitoring of radioactivity in process streams for normal and incident conditions
IEC/IEEE 60780-323:2016 Nuclear facilities - Electrical equipment important to safety - Qualification
IEC 62566:2012 Nuclear power plants - Instrumentation and control important to safety - Development of HDL-programmed integrated circuits for systems performing category A functions

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