IEC TR 63400:2021

IEC TR 63400 ®
Edition 1.0 2021-11
TECHNICAL
REPORT
colour
inside
Nuclear facilities – Instrumentation, control and electrical power systems
important to safety – Structure of the IEC SC 45A standards series
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IEC TR 63400 ®
Edition 1.0 2021-11
TECHNICAL
REPORT
colour
inside
Nuclear facilities – Instrumentation, control and electrical power systems

important to safety – Structure of the IEC SC 45A standards series

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 27.120.20 ISBN 978-2-8322-1050-7

– 2 – IEC TR 63400:2021 © IEC 2021
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 10
4 Abbreviated terms . 12
5 IEC SC 45A scope . 13
5.1 Technical scope . 13
5.2 Relationship with other standards bodies . 14
5.2.1 General . 14
5.2.2 Internal IEC liaisons . 14
5.2.3 Liaison with IAEA. 14
5.2.4 Liaison with IEEE NPEC . 14
5.3 Criteria for development of SC 45A standards . 15
5.4 IEC SC 45A terminology policy . 15
6 The IEC SC 45A standards structure . 15
6.1 Details of the basic structure . 15
6.2 Technical coverage . 16
6.3 Hierarchy of levels . 16
6.3.1 General . 16
6.3.2 Level 1 . 17
6.3.3 Level 2 . 17
6.3.4 Level 3 . 17
6.3.5 Level 4 . 17
6.4 Broad topic areas . 17
6.4.1 General . 17
6.4.2 I&C architecture and specifics of I&C [topic 01] . 18
6.4.3 Electrical power system architecture and specifics of electrics [topic 02] . 18
6.4.4 Safety fundamentals [topic 11] . 18
6.4.5 Equipment qualification and system performance [topic 12] . 19
6.4.6 Human factors engineering (HFE) [topic 13] . 19
6.4.7 Cyber security [topic 14] . 19
6.4.8 Ageing management [topic 15] . 19
6.4.9 Control rooms and human machine interfaces (HMI) [topic 21] . 20
6.4.10 Sensors and measurement techniques [topic 22] . 20
6.4.11 Special process measurement [topic 23] . 20
6.4.12 Radiation monitoring [topic 24] . 20
6.4.13 Plant wide I&C and electrical equipment [topic 25] . 20
6.5 Entry point documents . 20
6.6 Presentation of the structure in the TR . 21
7 Overview of the IEC SC 45A hierarchy . 21
8 Standards corresponding to SC 45A scope . 22
8.1 Standards related to the SC 45A full scope . 22
8.2 Non-SC 45A documents of particular relevance to SC 45A scope . 22
8.3 Standards related to SC 45A specific topics . 23

Annex A (informative)  List of SC 45A and selected SC 45B standards . 24
A.1 General . 24
A.2 Document list . 24
Annex B (informative) Other documents of particular relevance to the SC 45A
standards . 34
B.1 General . 34
B.2 IAEA documents . 34
B.2.1 All nuclear facilities . 34
B.2.2 Nuclear Power Plants (NPPs) . 35
B.2.3 Fuel Cycle Facilities (FCFs) . 35
B.2.4 Research Reactors (RRs) . 36
B.3 Other standards bodies documents . 36
B.3.1 Non-SC 45A IEC documents . 36
B.3.2 ISO documents . 37
B.3.3 ISO/IEC documents . 37
B.3.4 IEEE documents . 37
B.3.5 Other documents . 37
Annex C (informative) List of SC 45A and selected SC 45B standards by topic area . 38
C.1 General . 38
C.2 Document lists for each topic area . 38
C.2.1 Topic 01 – I&C architecture and specifics of I&C . 38
C.2.2 Topic 02 – electrical power system architecture and specifics of
electrics . 41
C.2.3 Topic 11 – safety fundamentals . 43
C.2.4 Topic 12 – equipment qualification and system performance. 46
C.2.5 Topic 13 – human factors engineering (HFE) . 47
C.2.6 Topic 14 – cyber security . 48
C.2.7 Topic 15 – ageing management . 50
C.2.8 Topic 21 – control rooms and human machine interfaces (HMI) . 52
C.2.9 Topic 22 – sensors and measurement techniques . 53
C.2.10 Topic 23 – special process measurement . 55
C.2.11 Topic 24 – radiation monitoring . 57
C.2.12 Topic 25 – plant wide I&C and electrical equipment . 61

Figure 1 – Structure of the IEC SC 45A standards series . 22

– 4 – IEC TR 63400:2021 © IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
NUCLEAR FACILITIES – INSTRUMENTATION, CONTROL AND
ELECTRICAL POWER SYSTEMS IMPORTANT TO SAFETY –
STRUCTURE OF THE IEC SC 45A STANDARDS SERIES

FOREWORD
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