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BS IEC 62385:2007

Current

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

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

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

Defines the requirements for demonstrating acceptable performance of safety system instrument channels through response time testing, calibration verification, and other means.

Defines the requirements for demonstrating acceptable performance of safety system instrument channels through response time testing, calibration verification, and other means. The same requirements may be adopted for demonstrating the acceptable performance of non-safety systems and other instrument channels.

Committee
NCE/8
DevelopmentNote
Supersedes 05/30102528 DC. (07/2007) Reviewed and confirmed by BSI, September 2013. (08/2013)
DocumentType
Standard
Pages
38
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
IEC 62385:2007 Identical

IEC 61224:1993 Nuclear reactors - Response time in resistance temperature detectors (RTD) - In situ measurements
IEC 62397:2007 Nuclear power plants - Instrumentation and control important to safety - Resistance temperature detectors

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