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BS IEC 62397:2022

BS IEC 62397:2022

$167.15

Nuclear power plants. Instrumentation and control important to safety. Resistance temperature detectors

Published By Publication Date Number of Pages
BSI 2022 42
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PDF Catalog

PDF Pages PDF Title
2 undefined
4 English
CONTENTS
6 FOREWORD
9 INTRODUCTION
11 1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
12 3.1 Terms and definitions
13 3.2 Abbreviated terms
14 4 Design and construction requirements
4.1 General
4.2 Reliability
4.3 Materials
4.3.1 General
4.3.2 Radiation dose to materials
4.3.3 Resistance element material
15 4.3.4 Seals and adhesives
4.4 Connections
4.4.1 Structural type
Figures
Figure 1 ā€“ Form and dimensions of an RTD
16 4.4.2 Electrical connection
Figure 2 ā€“ Installation of a rigid RTD (Type I)
Figure 3 ā€“ Installation of a rigid RTD (Type II) long insertion
Figure 4 ā€“ Installation of a rigid RTD (Type II) short insertion
18 4.4.3 Mechanical connection
Figure 5 ā€“ Type A of RTD connection
Figure 6 ā€“ Type B of RTD connection
19 4.5 Manufacturing quality
4.6 Ambient conditions (normal and accident operations) and qualification
20 4.7 RTD performance
4.7.1 General
4.7.2 Accuracy
4.7.3 Resistance temperature calibration
21 4.7.4 Self-heating error
4.7.5 Thermal response time
22 4.7.6 Interchangeability
4.7.7 Electrical insulation resistance
4.7.8 Repeatability (thermal shock)
4.7.9 Vibration
23 4.7.10 Steam test
4.7.11 Thermal cycling
4.7.12 Dielectric inspection
4.7.13 Hydraulic strength
4.7.14 In situ response time testing
24 4.8 Identification
4.9 Failure mode and effects analysis
5 Inspection and tests
5.1 General
25 5.2 Inspection and test failure
5.3 Inspection and test reports
5.4 Test method
5.4.1 Assembly and appearance inspection
5.4.2 Calibration procedure
26 5.4.3 Self-heating test
5.4.4 Thermal response time
5.4.5 Insulation resistance test
5.4.6 Repeatability test (thermal shock)
5.4.7 Vibration test
27 5.4.8 Steam test
5.4.9 Thermal cycling
5.4.10 Dielectric inspection test
5.4.11 Hydraulic test
28 5.4.12 In situ response time test
5.4.13 Cross-calibration testing
29 5.5 Production test
30 5.6 Qualification test
31 6 Documentation
33 Annex A (informative)In situ response time test methods
A.1 Loop current step response test (LCSR)
35 Figure A.1 ā€“ LCSR and plunge transients
36 A.2 Calculation of the response time by temperature noise (passive method)
37 Figure A.2 ā€“ Power spectrum density (PSD) plot of a sensor(smoothing of the power spectrum)
38 A.3 Self-heating method (active method)
Figure A.3 ā€“ Power spectrum density (PSD) plot of a sensor(associated modal response)
40 A.4 Instructions for the application of test
41 Bibliography

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BS IEC 62397:2022
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