M00036046
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NUCLEAR REACTORS - INSTRUMENTATION AND CONTROL SYSTEMS IMPORTANT FOR SAFETY - DETECTION OF LEAKAGE IN COOLANT SYSTEMS
International Electrotechnical Committee
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Availability date: 11/06/2021
Contents
Foreword
Introduction
Clause
1. Scope and object
2. Normative references
3. Definitions
4. Leakage classification and sources
4.1 Leakage classification
4.2 Potential identified leakage sources
5. General design and testing requirements
5.1 Principal monitoring systems for unidentified
leakage
5.2 Coolant leakage detection system performance
5.3 Safety classification
5.4 Collecting and measuring identified leakages
5.5 Monitoring intersystem leakage
5.6 System availability
5.7 Poert sources
5.8 Design basis documentation
6. Specific leakage detection instrument requirements
6.1 Sump level and/or sump pump discharge flow
monitoring leakage detection
6.2 Radiation monitoring leakage detection
6.3 Containment air cooler condensate flow collection
for leakage detection
6.4 Reactor coolant inventory
6.5 Humidity monitoring leakage detection
6.6 Acoustic monitoring leakage detection
6.7 Temperature monitoring leakage detection
6.8 Reactor containment pressure monitoring
6.9 Tape moisture sensors for leakage detection
6.10 Visual observations
7. System operability requirements
Table 1 - Summary of leakage monitoring instrument
capabilities
Defines requirements for instrumentation needed to detect leakage from reactor coolant systems of light water nuclear reactors. Describes methods of leak detection and gives characteristics of different methods of detection and of differentiating between allowable and abnormal leakages. Standardizes criteria, methods and procedures for assuring the design and operational adequacy of the reactor coolant and associated systems leakage detection systems used in light water cooled nuclear reactors.
Published | |
Document Type | Standard |
Status | Current |
Publisher | International Electrotechnical Committee |
Pages | |
ISBN | |
Committee | TC 45 |