IEC/IEEE 63113:2021

Nuclear facilities - Instrumentation important to safety - Spent fuel pool instrumentation

IEC/IEEE 63113:2021 provides criteria for spent fuel pool instrumentation for nuclear power generating stations and other nuclear facilities. The document applies to water filled spent fuel pools where the water volume is necessary to prevent a release of fission products that exceeds allowed operational limits. The purpose of this document is to establish design, performance, qualification, and display criteria for spent fuel pool instrumentation for normal operation, anticipated operational occurrences, design basis events, and design extension conditions (including severe accident conditions).

Installations nucléaires - Instrumentation importante pour la sûreté - Instrumentation des piscines de refroidissement et de stockage du combustible

IEC/IEEE 63113:2021 définit les critères applicables à l'instrumentation des piscines de refroidissement et de stockage du combustible dans les centrales électronucléaires et autres installations nucléaires. Le présent document s'applique aux piscines de refroidissement et de stockage du combustible remplies d'eau pour lesquelles un certain volume d'eau est nécessaire de manière à éviter un rejet de produits de fission supérieur aux limites d'exploitation admises. Le présent document a pour objet d'établir des critères de conception, de performance, de qualification et d'affichage de l'instrumentation des piscines de refroidissement et de stockage du combustible dans le cadre du fonctionnement normal, des incidents de fonctionnement prévus, des événements de dimensionnement et des conditions d'extension du dimensionnement (y compris les conditions accidentelles graves).

General Information

• Status: Published
• Publication Date: 19-Apr-2021
• ICS: 27.120.20 - Nuclear power plants. Safety
• Technical Committee: SC 45A - Instrumentation, control and electrical power systems of nuclear facilities
• Drafting Committee: WG 5 - TC 45/SC 45A/WG 5
• Current Stage: PPUB - Publication issued
• Start Date: 09-Apr-2021
• Completion Date: 20-Apr-2021

Standards Content (Sample)

IEC/IEEE 63113 ®
Edition 1.0 2021-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Nuclear facilities – Instrumentation important to safety – Spent fuel pool
instrumentation
Installations nucléaires – Instrumentation importante pour la sûreté –
Instrumentation des piscines de refroidissement et de stockage du combustible

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IEC/IEEE 63113 ®
Edition 1.0 2021-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Nuclear facilities – Instrumentation important to safety – Spent fuel pool

instrumentation
Installations nucléaires – Instrumentation importante pour la sûreté –

Instrumentation des piscines de refroidissement et de stockage du combustible

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 27.120.20 ISBN 978-2-8322-9624-0

– 2 – IEC/IEEE 63113:2021 © IEC/IEEE 2021
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 9
1.1 General . 9
1.2 Purpose . 9
1.3 Application . 9
2 Normative references . 9
3 Terms and definitions . 10
4 Symbols and abbreviated terms . 12
5 Functional requirements . 12
6 Performance criteria . 14
6.1 Range . 14
6.2 Accuracy . 15
6.2.1 General . 15
6.2.2 Additional criteria for DEC spent fuel pool monitoring instrumentation . 15
6.3 Response time . 15
6.4 Required accident operating time . 15
6.5 Reliability . 15
6.6 Documentation of performance criteria . 15
6.6.1 General . 15
6.6.2 Additional criteria for DEC spent fuel pool monitoring instrumentation . 15
7 Design criteria . 16
7.1 Redundancy . 16
7.2 Common cause failure . 16
7.3 Physical independence and separation . 16
7.4 Electrical isolation . 17
7.5 Information ambiguity . 17
7.6 Power supply . 17
7.6.1 General . 17
7.6.2 Additional criteria for DEC spent fuel pool monitoring instrumentation . 18
7.7 Calibration . 18
7.7.1 General . 18
7.7.2 Additional criteria for DEC spent fuel pool monitoring instrumentation . 18
7.8 Testability . 18
7.8.1 General . 18
7.8.2 Additional criteria for DEC spent fuel pool monitoring instrumentation . 18
7.9 Direct measurement . 18
7.10 Control of access . 19
7.11 Maintenance and repair . 19
7.12 Supporting features . 19
8 Qualification criteria . 19
8.1 General . 19
8.2 Seismic qualification . 19
8.3 Environmental qualification . 19
8.4 Shock and vibration qualification . 20
9 Display criteria . 20

9.1 Human factors . 20
9.2 Trend or rate information . 20
9.3 Continuous versus on-demand displays . 20
9.3.1 General . 20
9.3.2 Additional criteria for DEC spent fuel pool monitoring instrumentation . 20
9.4 Display identification . 20
9.5 Display location . 20
9.5.1 General . 20
9.5.2 Additional criteria for DEC spent fuel pool monitoring instrumentation . 21
10 Quality assurance . 21
Annex A (informative)  Typical bases for identifying spent fuel pool conditions to be
detected. 22
Bibliography . 25

Figure A.1 – Spent fuel pool monitoring instrumentation . 22

Table 1 – Relationship of functional groups used in this document . 14

– 4 – IEC/IEEE 63113:2021 © IEC/IEEE 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
NUCLEAR FACILITIES –
INSTRUMENTATION IMPORTANT TO SAFETY –
SPENT FUEL POOL INSTRUMENTATION

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