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BS IEC 61504:2017 Nuclear facilities. Instrumentation and control systems important to safety. Centralized systems for continuous monitoring of radiation and/or levels of radioactivity, 2017
- undefined
- English [Go to Page]
- CONTENTS
- FOREWORD
- INTRODUCTION
- Table 1 – Overview of the standards coveringthe domain of radiation monitoring in nuclear facilities
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Design requirements [Go to Page]
- 4.1 General [Go to Page]
- 4.1.1 Background
- 4.1.2 General characteristics and lifecycle (IEC 61559-1:2009, 4.1.1)
- 4.1.3 Safety classification and applicable standards (IEC 61559-1:2009, 4.1.2)
- 4.1.4 System architecture and configuration (IEC 61559-1:2009, 4.1.3)
- 4.1.5 Location of detector assemblies (IEC 61559-1:2009, 4.1.4)
- Figure 1 – Example of a typical centralized system configuration [Go to Page]
- [Go to Page]
- 4.1.6 Failure mode
- 4.1.7 Interlock functions
- 4.1.8 Control functions
- 4.1.9 Control of access
- 4.1.10 Testability
- 4.1.11 Maintainability
- 4.1.12 Operator interface
- 4.1.13 Data communication
- 4.2 Design requirements for the subassemblies [Go to Page]
- 4.2.1 Detector assembly (IEC 61559-1:2009, 4.2.1)
- 4.2.2 Processing assembly (IEC 61559-1:2009, 4.2.2)
- 4.2.3 Alarm assembly (IEC 61559-1:2009, 4.2.3)
- 4.2.4 Subsystem computer
- 4.2.5 Operator console
- 4.2.6 Interconnections
- 4.3 Central computer [Go to Page]
- 4.3.1 General (IEC 61559-1:2009, 4.3.1)
- 4.3.2 Functional requirements of the central computer (IEC 61559-1:2009, 4.3.2)
- 4.3.3 Checking normal operation of the equipment (IEC 61559-1 4.3.3)
- 4.3.4 Modifications
- 4.3.5 Recommended features
- 4.4 Electrical characteristics [Go to Page]
- 4.4.1 General (IEC 61559-1:2009, 4.4.1)
- 4.4.2 Electromagnetic compatibility (IEC 61559-1:2009, 4.4.2)
- 4.5 Radiation monitoring functions
- 5 General test procedures [Go to Page]
- 5.1 General
- 5.2 Test requirements (IEC 61559-1:2009, 5.1)
- 5.3 Test procedures for subassemblies [Go to Page]
- 5.3.1 Test procedures for the detector assembly (IEC 61559-1:2009, 5.2)
- 5.3.2 Test procedures for the combination of processing, detector and alarm assemblies (IEC 61559-1:2009, 5.3)
- 5.3.3 Test procedures for subsystem computer
- 5.3.4 Test procedures for operator consoles
- 5.4 Test procedures for the central computer (IEC 61559-1:2009, 5.4)
- 5.5 Test procedures for effects of power supply and environmental variations (IEC 61559-1:2009, 5.5)
- 5.6 Test procedures for data communications
- 5.7 System validation
- 5.8 System installation and commissioning testing
- 5.9 System qualification
- 6 Documentation [Go to Page]
- 6.1 General
- 6.2 Report on type testing (IEC 61559-1:2009, 6.1)
- 6.3 Certification (IEC 61559-1:2009, 6.2)
- 6.4 Operating and maintenance manual (IEC 61559-1:2009, 6.3)
- 6.5 Additional documentation
- Table 2 – Reference conditions and standard test conditions (unless otherwise indicated by the supplier)
- Annex A (informative)Cross-references for centralized systemfor radiation monitoring standards
- Table A.1 – Cross-reference table for centralizedsystem for radiation monitoring standards
- Bibliography [Go to Page]
