Nuclear power plants - Control rooms - Design (IEC 60964:2018)

IEC 60964:2018 is available as IEC 60964:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 60964:2018 establishes requirements for the human-machine interface in the main control rooms of nuclear power plants. The document also establishes requirements for the selection of functions, design consideration and organization of the human-machine interface and procedures which are used systematically to verify and validate the functional design. These requirements reflect the application of human factors engineering principles as they apply to the human-machine interface during plant operational states and accident conditions (including design basis and design extension conditions), as defined in IAEA SSR-2/1 and IAEA NP-T-3.16. This third edition cancels and replaces the second edition published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) to review the usage of the term “task” ensuring consistency between IEC 60964 and IEC 61839;
b) to clarify the role, functional capability, robustness and integrity of supporting services for the MCR to promote its continued use at the time of a severe accident or extreme external hazard;
c) to review the relevance of the standard to the IAEA safety guides and IEC SC 45A standards that have been published since IEC 60964:2009 was developed;
d) to clarify the role and meaning of “task analysis”,
e) to further delineate the relationships with derivative standards (i.e. IEC 61227, IEC 61771, IEC 61772, IEC 61839, IEC 62241 and others of relevance to the control room design);
f) to consider its alignment with the Human Factors Engineering principles, specifically with the ones of IAEA safety guide on Human Factors (DS-492) to be issued.

Kernkraftwerke - Warten - Auslegung (IEC 60964:2018)

Centrales nucléaires de puissance - Salles de commande - Conception (IEC 60964:2018)

IEC 60964:2018 est disponible sous forme de IEC 60964:2018 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.

L'IEC 60964:2018 établit des exigences en matière d’interface homme-machine pour la salle de commande principale des centrales nucléaires de puissance. Il établit aussi les exigences en matière de choix fonctionnels, de conception et d’organisation de l’interface homme-machine, ainsi que les procédures utilisées pour vérifier et valider systématiquement la conception fonctionnelle. Ces exigences reflètent les principes d’ergonomie tels qu’ils s’appliquent à une interface homme-machine pour les états opérationnels de la tranche et les conditions accidentelles (y compris les conditions de dimensionnement et les conditions hors dimensionnement), tels que définis par l’AIEA SSR-2/1 et l’AIEA NP-T-3.16.  Cette troisième édition annule et remplace la deuxième édition publiée en 2009. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) l’utilisation du terme «tâche» en garantissant la cohérence entre l’IEC 60964 et l’IEC 61839;
b) la clarification du rôle, des capacités fonctionnelles, de robustesse et d’intégrité des services support pour la salle de commande principale pour garantir sa continuité d’utilisation au moment de la survenance d’accident grave ou de risques externes extremes;
c) la revue de la pertinence de cette norme par rapport aux guides de sûreté de l’AIEA et aux normes de l’IEC SC 45A qui ont été publiés depuis le développement de l’IEC 60964:2009;
d) la clarification du sens et du rôle de «l’analyse des tâches»;
e) la définition des relations avec les normes dérivées (par exemple l’IEC 61227, l’IEC 61771, l’IEC 61772, l’IEC 61839, l’IEC 62241 et les autres normes pertinentes pour la conception des salles de commande);
f) l’alignement par rapport aux principes d’ergonomie, en particulier ceux du Guide de Sûreté de l’AIEA sur les facteurs humains qui doit être publié prochainement.

Jedrske elektrarne - Nadzorne sobe - Zasnova (IEC 60964:2018)

Na voljo je IEC 60964:2018, ki vsebuje mednarodni standard in njegovo različico z revizijami, ki prikazujejo vse spremembe tehnične vsebine v primerjavi s prejšnjo izdajo. 60964:2018 določa zahteve za vmesnik človek-stroj v nadzornih sobah jedrskih elektrarn. Dokument določa tudi zahteve za izbiro funkcij, zasnove in ureditve vmesnika človek-stroj ter postopke, ki se morajo sistematično uporabljati za preverjanje in validacijo funkcionalne zasnove. Te zahteve odražajo uporabo načel človeškega inženiringa, saj se uporabljajo za vmesnik človek-stroj med obratovalnimi obdobji elektrarne in nezgodnimi razmerami (vključno s predvidenimi in nepredvidenimi pogoji), kot je opredeljeno v dokumentih IAEA SSR-2/1 in IAEA NP-T-3.16. Tretja izdaja razveljavlja in nadomešča drugo izdajo, objavljeno leta 2009. Ta izdaja je tehnično popravljena izdaja. Ta izdaja vključuje naslednje znatne tehnične spremembe glede na prejšnjo izdajo:
a) pregledati uporabo izraza »naloga«, da se zagotovi skladnost med standardoma IEC 60964 in IEC 61839;
b) razjasniti vlogo, funkcionalno sposobnost, robustnost in celovitost podpornih storitev za največjo trajno zmogljivost (MCR) za spodbujanje neprekinjene uporabe v času hujše nesreče ali izredne zunanje nevarnosti;
c) pregledati ustreznost standarda za varnostne priročnike IAEA in standarde IEC SC 45A, ki so bili objavljeni po tem, ko je bil pripravljen IEC 60964:2009;
d) razjasniti vlogo in pomen »analize nalog«;
e) nadalje razmejiti povezave z izpeljanimi standardi (tj. IEC 61227, IEC 61771, IEC 61772, IEC 61839, IEC 62241 in drugimi, ki so pomembni za zasnovo nadzorne sobe);
f) preučiti uskladitev izdaje z načeli človeškega inženiringa, zlasti z načeli varnostnih napotkov Mednarodne agencije za atomsko energijo (IAEA) o človeških dejavnikih (DS-492), ki bodo izdani.

General Information

Status
Published
Publication Date
11-Aug-2019
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
05-Jul-2019
Due Date
09-Sep-2019
Completion Date
12-Aug-2019

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SLOVENSKI STANDARD
SIST EN IEC 60964:2019
01-september-2019
Nadomešča:
SIST EN 60964:2010
Jedrske elektrarne - Nadzorne sobe - Zasnova (IEC 60964:2018)
Nuclear power plants - Control rooms - Design (IEC 60964:2018)
Kernkraftwerke - Warten - Auslegung (IEC 60964:2018)
Centrales nucléaires de puissance - Salles de commande - Conception (IEC
60964:2018)
Ta slovenski standard je istoveten z: EN IEC 60964:2019
ICS:
27.120.20 Jedrske elektrarne. Varnost Nuclear power plants. Safety
SIST EN IEC 60964:2019 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 60964:2019
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SIST EN IEC 60964:2019
EUROPEAN STANDARD EN IEC 60964
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2019
ICS 27.120.20
English Version
Nuclear power plants - Control rooms - Design
(IEC 60964:2018)

Centrales nucléaires de puissance - Salles de commande - Kernkraftwerke - Warten - Auslegung

Conception (IEC 60964:2018)
(IEC 60964:2018)

This European Standard was approved by CENELEC on 2019-06-17. CENELEC members are bound to comply with the CEN/CENELEC

Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC

Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the

same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the

Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 60964:2019 E
---------------------- Page: 3 ----------------------
SIST EN IEC 60964:2019
EN IEC 60964:2019 (E)
European foreword

This document (EN IEC 60964:2019) consists of the text of IEC 60964:2018 prepared by IEC/SC

45A: "Instrumentation, control and electrical power systems of nuclear facilities", of IEC/TC 45:

"Nuclear instrumentation".
The following dates are fixed:
• latest date by which this document has to be (dop) 2020-06-17
implemented at national level by publication of an
identical national standard or by endorsement
• latest date by which the national standards (dow) 2022-06-17
conflicting with this document have to be
withdrawn

As stated in the nuclear safety directive 2009/71/EURATOM, Chapter 1, Article 2, item 2, Member

States are not prevented from taking more stringent safety measures in the subject-matter covered by

the Directive, in compliance with Community law. In a similar manner, this European standard does

not prevent Member States from taking more stringent nuclear safety and/or security measures in the

subject-matter covered by this standard.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice

The text of the International Standard IEC 60964:2018 was approved by CENELEC as a European

Standard without any modification.
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SIST EN IEC 60964:2019
EN IEC 60964:2019 (E)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents are referred to in the text in such a way that some or all of their

content constitutes requirements of this document. For dated references, only the edition

cited applies. For undated references, the latest edition of the referenced document

(including any amendments) applies.

NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:

www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60671 - Nuclear power plants - Instrumentation EN 60671 -
and control systems important to safety -
Surveillance testing
IEC 60709 - Nuclear power plants – Instrumentation EN 60709 -
and control systems important to safety –
Separation
IEC/IEEE 60780- - Nuclear power plants – Electrical EN 60780-323 -
323 equipment of the safety system –
Qualification
IEC 60960 - Functional design criteria for a safety - -
parameter display system for nuclear
power stations
IEC 60965 - Nuclear power plants – Control rooms – EN 60965 -
Supplementary control room for reactor
shutdown without access to the main
control room
IEC 60980 - Recommended practices for seismic - -
qualification of electrical equipment of the
safety system for nuclear generating
stations
IEC 61225 - Nuclear power plants - Instrumentation - -
and control systems important to safety -
Requirements for electrical supplies
IEC 61226 - Nuclear power plants - Instrumentation EN 61226 -
and control important to safety -
Classification of instrumentation and
control functions
IEC 61227 - Nuclear power plants - Control rooms - EN 61227 -
Operator controls
IEC 61513 - Nuclear power plants - Instrumentation EN 61513 -
and control important to safety - General
requirements for systems
IEC 61771 - Nuclear power plants - Main control-room - - -
Verification and validation of design
IEC 61772 - Nuclear power plants - Control rooms - EN 61772 -
Application of visual display units (VDUs)
IEC 61839 - Nuclear power plants - Design of control EN 61839 -
rooms - Functional analysis and
assignment
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SIST EN IEC 60964:2019
EN IEC 60964:2019 (E)
IEC 62003 - Nuclear power plants - Instrumentation - -
and control important to safety -
Requirements for electromagnetic
compatibility testing
IEC 62241 - Nuclear power plants - Main control room - EN 62241 -
Alarm functions and presentation
IEC 62645 - Nuclear power plants – Instrumentation - -
and control systems – Requirements for
security programmes for computer-based
systems
IEC 62646 - Nuclear power plants – Control rooms – - -
Computer based procedures
IEC 62859 - Nuclear power plants – Instrumentation - -
and control systems – Requirements for
coordinating safety and cybersecurity
ISO 11064 series Ergonomic design of control centres - EN ISO 11064 series
IAEA NS-G-1.9 - Design of the reactor coolant system and -
associated systems in nuclear power
plants
IAEA NS-G-1.11 - Protection against internal hazards other -
than fires and explosions in the design of
nuclear power plants
IAEA NP-T-3.16 - Accident Monitoring Systems for Nuclear -
Power Plants
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SIST EN IEC 60964:2019
IEC 60964
Edition 3.0 2018-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Nuclear power plants – Control rooms – Design
Centrales nucléaires de puissance – Salles de commande – Conception
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 27.120.10; 27.120.20 ISBN 978-2-8322-6086-9

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
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SIST EN IEC 60964:2019
– 2 – IEC 60964:2018 © IEC 2018
CONTENTS

FOREWORD ........................................................................................................................... 4

INTRODUCTION ..................................................................................................................... 6

1 Scope .............................................................................................................................. 9

2 Normative references ...................................................................................................... 9

3 Terms and definitions .................................................................................................... 10

4 Abbreviated terms ......................................................................................................... 15

5 Standard use ................................................................................................................. 15

6 Design principles for the main control room ................................................................... 18

6.1 Main objectives ..................................................................................................... 18

6.2 Functional design objectives ................................................................................. 18

6.3 Safety principles ................................................................................................... 18

6.4 Availability principles ............................................................................................ 19

6.5 Human factors engineering principles ................................................................... 19

6.6 Utility operating principles ..................................................................................... 19

6.7 Relationship with other control and management centres ...................................... 19

6.8 Operational experience ......................................................................................... 20

7 Functional design of the main control room .................................................................... 20

7.1 General ................................................................................................................. 20

7.2 Functional analysis ............................................................................................... 20

7.2.1 General ......................................................................................................... 20

7.2.2 Identification of functions ............................................................................... 20

7.2.3 Information flow and processing requirements ............................................... 21

7.3 Assignment of functions ........................................................................................ 21

7.3.1 General ......................................................................................................... 21

7.3.2 Operator capabilities ...................................................................................... 22

7.3.3 I&C system processing capabilities ................................................................ 22

7.4 Verification of function assignment ........................................................................ 23

7.4.1 General ......................................................................................................... 23

7.4.2 Process ......................................................................................................... 23

7.5 Validation of function assignment .......................................................................... 23

7.5.1 General ......................................................................................................... 23

7.5.2 Process ......................................................................................................... 23

7.5.3 General evaluation criteria for validation ........................................................ 24

7.6 Job analysis .......................................................................................................... 24

8 Functional design specification ...................................................................................... 24

8.1 General ................................................................................................................. 24

8.2 Provision of data base on human capabilities and characteristics ......................... 25

8.3 Location, environment and protection .................................................................... 25

8.3.1 Location ........................................................................................................ 25

8.3.2 Environment .................................................................................................. 25

8.3.3 Protection ...................................................................................................... 26

8.4 Space and configuration ....................................................................................... 26

8.4.1 Space ............................................................................................................ 26

8.4.2 Configuration ................................................................................................. 27

8.5 Panel layout .......................................................................................................... 27

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SIST EN IEC 60964:2019
IEC 60964:2018 © IEC 2018 – 3 –

8.5.1 Priority ........................................................................................................... 27

8.5.2 Positioning on control desks and panels ........................................................ 28

8.5.3 Mirror image layout ........................................................................................ 28

8.6 Location aids ........................................................................................................ 28

8.6.1 Grouping of display information and controls ................................................. 28

8.6.2 Nomenclature ................................................................................................ 29

8.6.3 Coding ........................................................................................................... 29

8.6.4 Labelling ........................................................................................................ 30

8.7 Information and control systems ........................................................................... 30

8.7.1 General ......................................................................................................... 30

8.7.2 Information functions ..................................................................................... 30

8.7.3 Control functions ........................................................................................... 34

8.8 Control-display integration .................................................................................... 35

8.9 Communication systems ....................................................................................... 35

8.9.1 General ......................................................................................................... 35

8.9.2 Verbal communication systems ...................................................................... 35

8.9.3 Non-verbal communication systems ............................................................... 37

8.10 Other requirements ............................................................................................... 37

8.10.1 Power supplies .............................................................................................. 37

8.10.2 Qualification .................................................................................................. 37

8.10.3 Maintainability ............................................................................................... 37

8.10.4 Repairs .......................................................................................................... 37

8.10.5 Testability ...................................................................................................... 37

9 Verification and validation of the integrated control room system ................................... 38

9.1 General ................................................................................................................. 38

9.2 Control room system verification ........................................................................... 38

9.2.1 General ......................................................................................................... 38

9.2.2 Process ......................................................................................................... 38

9.2.3 General evaluation criteria for integrated system verification ......................... 38

9.3 Control room system validation ............................................................................. 38

9.3.1 General ......................................................................................................... 38

9.3.2 Process ......................................................................................................... 38

9.3.3 General evaluation criteria for integrated system validation ........................... 39

Annex A (informative) Explanation of concepts .................................................................... 40

A.1 Control room system ............................................................................................. 40

A.2 “Human” and “machine” ........................................................................................ 40

Bibliography .......................................................................................................................... 42

Figure 1 – Overview of control room system ......................................................................... 16

Figure 2 – Overall design process and the relationship to clauses and subclauses of

this document ....................................................................................................................... 17

Table A.1 – Human and machine in functional domain and physical domain ......................... 41

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SIST EN IEC 60964:2019
– 4 – IEC 60964:2018 © IEC 2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
NUCLEAR POWER PLANTS – CONTROL ROOMS – DESIGN
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

international co-operation on all questions concerning standardization in the electrical and electronic fields. To

this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,

Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested

in the subject dealt with may participate in this preparatory work. International, governmental and non-

governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

with the International Organization for Standardization (ISO) in accordance with conditions determined by

agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence

between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

the latter.

5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 60964 has been prepared by subcommittee 45A: Instrumentation,

control and electrical power systems of nuclear facilities, of IEC technical committee 45:

Nuclear instrumentation.

This third edition cancels and replaces the second edition published in 2009. This edition

constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:

a) to review the usage of the term “task” ensuring consistency between IEC 60964 and

IEC 61839;

b) to clarify the role, functional capability, robustness and integrity of supporting services for

the MCR to promote its continued use at the time of a severe accident or extreme external

hazard;

c) to review the relevance of the standard to the IAEA safety guides and IEC SC 45A

standards that have been published since IEC 60964:2009 was developed;
d) to clarify the role and meaning of “task analysis”,
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SIST EN IEC 60964:2019
IEC 60964:2018 © IEC 2018 – 5 –

e) to further delineate the relationships with derivative standards (i.e. IEC 61227, IEC 61771,

IEC 61772, IEC 61839, IEC 62241 and others of relevance to the control room design);

f) to consider its alignment with the Human Factors Engineering principles, specifically with

the ones of IAEA safety guide on Human Factors (DS-492) to be issued.
The text of this International Standard is based on the following documents:
FDIS Report on voting
45A/1214/FDIS 45A/1224/RVD

Full information on the voting for the approval of this International Standard can be found in

the report on voting indicated in the above table.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
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SIST EN IEC 60964:2019
– 6 – IEC 60964:2018 © IEC 2018
INTRODUCTION
a) Technical background, main issues and organization of the standard

IEC 60964:1989 was developed to supply requirements relevant to the design of the main

control room of NPPs and reviewed in 2009. The first two editions of IEC 60964 were used

extensively within the nuclear industry. It was however recognized that there was a need to

develop an amendment for the 2009 edition to address:
• The usage of the term "task" needed to be examined.

• The role, functional capability, integrity of supporting services and robustness for the MCR

should be clarified to promote its continued use at the time of a severe accident or

extreme external hazard.

• The relevance of the standard to the IAEA safety guides and SC 45A standards published

since 2009.

Given the size of the proposal amendment, it was decided that a new edition of IEC 60964

should be issued instead of an amendment. During the preparation of this third edition, it was

agreed that the following points have to be covered:
• to clarify the role and meaning of “task analysis”,

• to further delineate the relationships with derivative standards (i.e. IEC 61227, IEC 61771,

IEC 61772, IEC 61839, IEC 62241 and others of relevance to the control room design);

• to consider its alignment with the Human Factors Engineering principles, specifically with

the ones of IAEA safety guide on Human Factors (DS-492) to be issued.

This IEC standard specifically focuses on the functional designing of the main control room of

NPPs. It is intended that the Standard be used by NPP vendors, utilities, and by licensors.

b) Situation of the current standard in the structure of the IEC SC 45A standard series

IEC 60964 is the second level IEC SC 45A document tackling the generic issue of control

room design.

IEC 60964 is to be read in association with the derivative standards mentioned above which

are the appropriate IEC SC 45A documents which provide guidance on operator controls,

verification and validations of design, application of visual display units, functional analysis

and assignment, and alarm functions and presentation.

For more details on the structure of the IEC SC 45A standard series, see item d) of this

introduction.
c) Recommendations and limitations regarding the application of the Standard

This standard is intended for application to new control rooms whose conceptual design is

initiated after the publication of this standard. The recommendations of the standard may be

used for refits, upgrades and modifications.

The primary purpose of this standard is to provide functional design requirements to be used

in the design of the main control room of a nuclear power plant to meet operational and safety

requirements.

This standard also provides functional interface requirements which relate to control room

staffing, operating procedures and the training programme which are, together with the

human-machine interface, constituents of the control room system.
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SIST EN IEC 60964:2019
IEC 60964:2018 © IEC 2018 – 7 –

To ensure that the Standard will continue to be relevant in future years, the emphasis has

been placed on issues of principle, rather than specific technologies.

d) Description of the structure of the IEC SC 45A standard series and relationships

with other IEC documents and other bodies documents (IAEA, ISO)

The top-level documents of the IEC SC 45A standard series are IEC 61513 and IEC 63046.

IEC 61513 provides general requirements for I&C systems and equipment that are used to

perform functions important to safety in NPPs. IEC 63046 provides general requirements for

electrical power systems of NPPs; it covers power supply systems including the supply

systems of the I&C systems. IEC 61513 and IEC 63046 are to be considered in conjunction

and at the same level. IEC 61513 and IEC 63046 structure the IEC SC 45A standard series

and shape a complete framework establishing general requirements for instrumentation,

control and electrical systems for nuclear power plants.

IEC 61513 and IEC 63046 refer directly to other IEC SC 45A standards for general topics

related to categorization of functions and classification of systems, qualification, separation,

defence against common cause failure, control room design, electromagnetic compatibility,

cybersecurity, software and hardware aspects for programmable digital systems, coordination

of safety and security requirements and management of ageing. The standards referenced

directly at this second level should be considered together with IEC 61513 and IEC 63046 as

a consistent document set.

At a third level, IEC SC 45A standards not directly referenced by IEC 61513 or by IEC 63046

are standards related to specific equipment, technical methods, or specific activities. Usually

these documents, which make reference to second-level documents for general topics, can be

used on their own.
A fourth level extending the IEC SC 45A standard series, correspond
...

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