RADIATION PROTECTION INSTRUMENTATION IN NUCLEAR FACILITIES - CENTRALIZED SYSTEMS FOR CONTINUOUS MONITORING OF RADIATION AND/OR LEVELS OF RADIOACTIVITY - PART 1: GENERAL REQUIREMENTS
International Electrotechnical Committee
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions and abbreviations
3.1 Terms and definitions
3.2 Test nomenclature
3.3 Abbreviated terms
4 Design requirements
4.1 General remarks
4.1.1 General
4.1.2 Safety classification
4.1.3 System configuration
4.1.4 Location of detector assemblies
4.2 Design requirements for the assemblies
4.2.1 Detector assembly
4.2.2 Processing assembly
4.2.3 Alarm assemblies
4.3 Central computer
4.3.1 General
4.3.2 Functional requirements of the central computer
4.3.3 Checking normal operation of the equipment
4.4 Electrical characteristics
4.4.1 General
4.4.2 Electromagnetic compatibility
5 General Test procedures
5.1 Test requirements
5.1.1 General
5.1.2 Test performed under standard test conditions
5.1.3 Test performed with variation of influence
quantities
5.2 Test procedures for the detector assembly
5.3 Test procedures for the monitoring assembly
5.3.1 Alarm trip range
5.3.2 Equipment failure alarms
5.3.3 Alarm response time and stability
5.4 Test procedures for the central computer
5.4.1 Individual tests of access channels
5.4.2 Whole tests of access channels
5.4.3 Tests for functional validation and verification
5.5 Test procedures for effects of power supply and
environmental variations
5.5.1 Power supply variations
5.5.2 Power supply variations (interruptions and
transients)
5.5.3 Surges and oscillatory waves
5.5.4 Ambient temperature and humidity
5.5.5 Electromagnetic compatibility
5.5.6 External electromagnetic immunity and electrostatic
discharge
5.5.7 Electromagnetic emission
6 Documentation
6.1 Report on type testing
6.2 Certificate
6.3 Operating and maintenance manual
Annex A (informative) Selection of a measuring unit
Annex B (informative) Guidance on location of detector
assemblies
Bibliography
Applicable to centralized systems intended for continuous monitoring of radiation and/or levels of radioactivity installed in nuclear facilities, primarily in support of radiological protection in the working areas.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 45 |
| Supersedes |
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