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IEC 62646:2012

(Main)

Nuclear power plants - Control rooms - Computer based procedures

Nuclear power plants - Control rooms - Computer based procedures

IEC 62646:2012 establishes requirements for the whole life cycle of operating procedures that the designer wishes to computerise. It also provides guidance for making decisions about which types of procedures are to be computerised and to what extent. Once computerised, procedures are designated as "Computer Based Procedures" (CBP).

Centrales nucléaires de puissance - Salles de commande - Procédures informatisées

La CEI 62646:2012 établit des exigences pour l'ensemble du cycle de vie des procédures de conduite que le concepteur souhaite informatiser. Elle fournit aussi des recommandations pour prendre les décisions concernant le choix des procédures à informatiser et le niveau d'informatisation de celles-ci. Une fois informatisées, ces procédures sont nommées "procédures informatisées" (PI).

General Information

Status
Published
Publication Date
26-Sep-2012
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
Completion Date
05-Oct-2016
Ref Project

Relations

Revised
IEC 62646:2016 - Nuclear power plants - Control rooms - Computer-based procedures
Effective Date
05-Sep-2023

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IEC 62646:2012 - Nuclear power plants - Control rooms - Computer based procedures Released:9/27/2012IEC 62646:2012 - Nuclear power plants - Control rooms - Computer based procedures Released:9/27/2012
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IEC 62646:2012 - Nuclear power plants - Control rooms - Computer based procedures Released:9/27/2012
English and French language
76 pages
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IEC 62646 ®
Edition 1.0 2012-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Nuclear power plants – Control rooms – Computer based procedures

Centrales nucléaires de puissance – Salles de commande – Procédures
informatisées
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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IEC 62646 ®
Edition 1.0 2012-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Nuclear power plants – Control rooms – Computer based procedures

Centrales nucléaires de puissance – Salles de commande – Procédures

informatisées
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX W
ICS 27.120.20 ISBN 978-2-83220-388-0

– 2 – 62646 © IEC:2012
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 8
1.1 Object . 8
1.2 CBP overview . 8
1.3 Exclusions from this standard . 9
1.4 Organisation of this standard . 9
2 Normative references . 10
3 Terms and definitions . 10
4 Abbreviations . 12
5 CBP policy requirements . 12
5.1 General . 12
5.2 Computerisation policy . 13
5.2.1 General . 13
5.2.2 Preliminary considerations . 13
5.2.3 Final decision on use of CBP . 14
5.3 Families of CBP . 15
5.4 Overview of computerisation features . 16
5.4.1 General . 16
5.4.2 Global requirements for computerisation . 16
5.4.3 CBP guidance. 16
5.4.4 Procedure based automation . 17
5.5 Output documentation . 18
6 Use of CBP . 18
6.1 General . 18
6.2 Environment of use . 18
6.2.1 General . 18
6.2.2 Use of CBP in computerised control rooms . 18
6.2.3 Use of CBP in a conventional or hybrid main control room . 18
6.2.4 Use of CBP in conjunction with paper based procedures . 19
6.2.5 Use of CBP outside the main control room . 19
6.3 Assistance to operators activities . 20
6.3.1 General . 20
6.3.2 Assistance to primary activities of the operator . 20
6.3.3 Assistance to secondary activities of the operator. 20
6.4 Operator coordination . 21
6.5 Output documentation . 21
7 CBP system . 21
7.1 General . 21
7.2 Safety requirements . 22
7.3 Integration of the CBP system into the HMI system . 22
7.4 CBP system independent from the HMI system . 22
7.4.1 General . 22
7.4.2 Non-safety requirements. 22
7.4.3 Connections between the CBP system and the HMI system . 23
7.4.4 Maintenance of the CBP system . 23

62646 © IEC:2012 – 3 –
7.5 CBP system failure . 23
7.6 Output documentation . 24
8 Detailed design requirements . 24
8.1 General . 24
8.2 Basic CBP features . 24
8.2.1 General . 24
8.2.2 Basic features necessary for CBP. 24
8.2.3 Presentation rules . 25
8.2.4 CBP display format layout . 25
8.2.5 Requirements for presentation of individual display elements . 26
8.3 Information given by CBP . 26
8.3.1 General . 26
8.3.2 Information for family 1 CBP . 26
8.3.3 Information for family 2 CBP . 26
8.3.4 Information for family 3 CBP . 27
8.4 Navigation . 27
8.4.1 General . 27
8.4.2 Navigation for family 1 CBP . 27
8.4.3 Navigation for family 2 and family 3 CBP . 28
8.5 CBP guidance . 28
8.5.1 General . 28
8.5.2 CBP access . 28
8.5.3 Diagnosis assistance . 28
8.5.4 Decision assistance . 29
8.5.5 Computerisation of CBP guidance . 29
8.6 Procedure based automation . 29
8.6.1 General . 29
8.6.2 Interactions between operators and procedure based automation . 30
8.6.3 Design of CBP to control the plant . 30
8.7 Other CBP facilities . 30
8.8 Output documentation . 31
9 CBP life cycle . 31
9.1 General . 31
9.2 Project organis
...

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