BS IEC 62385:2007
Current
The latest, up-to-date edition.
Nuclear power plants. Instrumentation and control important to safety. Methods for assessing the performance of safety system instrument channels
Hardcopy , PDF
English
07-31-2007
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements for performance verification of process
instruments
4.1 Background
4.2 General requirements
4.3 Testing environment
4.4 Test interval
4.5 Test location
4.6 Calibration of measurement and test equipment
4.7 Test results
4.8 Validation of test methods
4.9 Qualifications of test personnel
5 Acceptable means for instrument performance verification
5.1 Introduction
5.2 Calibration
5.3 Channel checks
5.4 Functional test
5.5 Response time testing
6 Methods to verify instrument calibration
6.1 General considerations
6.2 Cross-calibration (cross-validation) method
6.3 On-line calibration monitoring
6.3.1 Introduction
6.3.2 Principle of on-line calibration monitoring
6.3.3 Data acquisition requirements
6.3.4 Data qualification and data analysis requirements
6.3.5 Accounting for common mode drift
6.3.6 Data collection frequency
7 Methods for response time testing
7.1 Response time testing of pressure transmitters
7.1.1 Ramp test
7.1.2 Noise analysis technique
7.1.3 Power interrupt (PI) test
7.2 Response time testing of temperature sensors
7.2.1 Plunge test
7.2.2 LCSR test
7.2.3 Self-heating test
7.2.4 Noise analysis
8 On-line detection of blockages and voids in pressure
sensing lines
9 Verifying the performance of neutron detectors
Annex A (informative) RTD cross-calibration/cross-validation
Annex B (informative) On-line calibration monitoring
Annex C (informative) Response time testing techniques for
pressure transmitters and neutron
detectors
Annex D (informative) Response time testing techniques for
RTDs
Bibliography
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