IEC 62397:2007

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

Describes the requirements for resistance temperature detectors (RTDs) suitable for nuclear power plant (NPP) services. The requirements of RTDs include design, materials, manufacturing, testing, calibration, procurement, and inspection.

Centrales nucléaires de puissance - Instrumentation et contrôle- commande importants pour la sûreté - Sondes à résistance

Etablit les exigences applicables aux sondes à résistance (SR) aptes à fonctionner en centrales nucléaires. Ces exigences applicables aux SR sont relatives à la conception, aux matériaux de construction, à la fabrication, aux essais, à l'étalonnage, à l'approvisionnement et aux inspections.

General Information

• Status: Published
• Publication Date: 14-May-2007
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 27.120.20 - Nuclear power plants. Safety
• Technical Committee: SC 45A - Instrumentation, control and electrical power systems of nuclear facilities
• Current Stage: DELPUB - Deleted Publication
• Start Date: 03-Feb-2020
• Completion Date: 23-Nov-2022

Relations

• Revised: IEC 62397:2022 - Nuclear power plants - Instrumentation and control important to safety - Resistance temperature detectors
• Effective Date: 05-Sep-2023

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD
CEI
NORME
First edition
INTERNATIONALE
Première édition
2007-05
Nuclear power plants –
Instrumentation and control important to safety –
Resistance temperature detectors

Centrales nucléaires de puissance –
Instrumentation et contrôle-commande
importants pour la sûreté –
Sondes à résistance
Reference number
Numéro de référence
IEC/CEI 62397:2007
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INTERNATIONAL IEC
STANDARD
CEI
NORME
First edition
INTERNATIONALE
Première édition
2007-05
Nuclear power plants –
Instrumentation and control important to safety –
Resistance temperature detectors

Centrales nucléaires de puissance –
Instrumentation et contrôle-commande
importants pour la sûreté –
Sondes à résistance
PRICE CODE
T
CODE PRIX
Commission Electrotechnique Internationale
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue
Pour prix, voir catalogue en vigueur

– 2 – 62397 © IEC:2007
CONTENTS
FOREWORD.4
INTRODUCTION.6

1 Scope.8
2 Normative references .8
3 Terms and definitions .8
4 Design and construction requirements.10
4.1 General .10
4.2 Reliability .10
4.3 Materials .10
4.3.1 Radiation dose to materials .10
4.3.2 Resistance element material.11
4.3.3 Seals and adhesives.11
4.4 Connections .11
4.4.1 Electrical connection .11
4.4.2 Mechanical connection .14
4.5 Workmanship .14
4.6 Ambient conditions (normal and accident operations) .15
4.7 RTD performance .15
4.7.1 Accuracy .15
4.7.2 Resistance temperature calibration.16
4.7.3 Self-heating error .16
4.7.4 Thermal response time .16
4.7.5 Interchangeability .17
4.7.6 Electrical insulation resistance .17
4.7.7 Repeatability (thermal shock) .17
4.7.8 Vibration.18
4.7.9 Steam test .18
4.7.10 Insulation resistance after storage .18
4.7.11 In situ response time testing .19
4.8 Identification.19
4.9 Failure mode and effects analysis .19
5 Inspection and tests .20
5.1 General .20
5.2 Inspection and test failure .20
5.3 Inspection and test reports .20
5.4 Qualification tests.20
5.4.1 Calibration procedure .21
5.4.2 Thermal cycling .22
5.4.3 Insulation breakdown test .22
5.4.4 Examination .22
5.5 Production tests .22
6 Technical information required .23

Bibliography.24

62397 © IEC:2007 – 3 –
Figure 1 – Form and dimensions of an RTD .12
Figure 2 – Installation of a rigid RTD (Type I).12
Figure 3 – Installation of a rigid RTD (Type II) long insertion.13
Figure 4 – Installation of a rigid RTD (Type II) short insertion .13

– 4 – 62397 © IEC:2007
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
NUCLEAR POWER PLANTS –
INSTRUMENTATION AND CONTROL IMPORTANT TO SAFETY –
RESISTANCE TEMPERATURE DETECTORS

FOREWORD
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International Standard IEC 62397 has been prepared by subcommittee 45A: Instrumentation
and control of nuclear facilities, of IEC technical committee 45: Nuclear instrumentation.
The text of this standard is based on the following documents:
FDIS Report on voting
45A/650/FDIS 45A/656/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

62397 © IEC:2007 – 5 –
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed;
• withdrawn;
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