EN IEC 60987:2021
(Main)Nuclear power plants - Instrumentation and control important to safety - Hardware requirements
Nuclear power plants - Instrumentation and control important to safety - Hardware requirements
IEC 60987:2021 provides requirements and recommendations for the hardware aspects of I&C systems whatever the technology and applies for all safety classes in a graded manner (as defined by IEC 61513). The requirements defined within this document guide, in particular, the selection of pre-existing components, hardware aspects of system detailed design and implementation and equipment manufacturing. This third edition cancels and replaces the second edition published in 2007. This edition includes the following significant technical changes with respect to the previous edition: a) Title modified; b) Take account of the fact that hardware requirements apply to all I&C technologies, including conventional hardwired equipment, programmable digital equipment or by using a combination of both types of equipment; c) Align the standard with the new revisions of IAEA documents SSR-2/1, which include as far as possible an adaptation of the definitions; d) Replace, as far as possible, the requirements associated with standards published since the edition 2.1, especially IEC 61513, IEC 60880, IEC 62138, IEC 62566 and IEC 62566‑2; e) Review the existing requirements and update the terminology and definitions; f) Extend the scope of the standard to all hardware (computerized and non-computerized) and to all safety classes 1, 2 and 3; g) Complete, update the IEC and IAEA references and vocabulary; h) Check possible impact of other IAEA requirements and recommendations considering extension of the scope of SC 45A; i) Highlight the use of IEC 62566 and IEC 62566-2 for HPD development; j) Introduce specific activities for pre-existing items (selection, acceptability and/or mitigation); k) Introduce clearer requirements for electronic module-level design, manufacturing and control; l) Complete reliability assessment methods; m) Introduce requirements when using automated tests or control activities; n) Complete description of manufacturing control activities (control process, assessment of manufactured equipment, preservation of products); o) Define and ensure the inclusion of a graded approach for dealing with the 3 different classes of equipment and related requirements.
Kernkraftwerke - Leittechnische Systeme mit sicherheitstechnischer Bedeutung - Hardwareanforderungen
Centrales nucléaires de puissance - Systèmes d'instrumentation et de contrôle-commande importants pour la sûreté - Exigences applicables au matériel
See the scope of IEC 60987:2021. Adoption of IEC 60987:2021 is to be done without modification.
Jedrske elektrarne - Merilna in nadzorna oprema za zagotavljanje varnosti - Zahteve za strojno opremo (IEC 60987:2021)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2021
Nadomešča:
SIST EN 60987:2015
Jedrske elektrarne - Merilna in nadzorna oprema za zagotavljanje varnosti -
Zahteve za strojno opremo (IEC 60987:2021)
Nuclear power plants - Instrumentation and control important to safety - Hardware
requirements (IEC 60987:2021)
Kernkraftwerke - Leittechnische Systeme mit sicherheitstechnischer Bedeutung -
Hardware-Anforderungen (IEC 60987:2021)
Centrales nucléaires de puissance - Systèmes d'instrumentation et de contrôle-
commande importants pour la sûreté - Exigences applicables au matériel (IEC
60987:2021)
Ta slovenski standard je istoveten z: EN IEC 60987:2021
ICS:
27.120.20 Jedrske elektrarne. Varnost Nuclear power plants. Safety
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 60987
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2021
ICS 27.120.20 Supersedes EN 60987:2015 and all of its amendments
and corrigenda (if any)
English Version
Nuclear power plants - Instrumentation and control important to
safety - Hardware design requirements for computer-based
systems
(IEC 60987:2021)
Centrales nucléaires de puissance - Systèmes Kernkraftwerke - Leittechnische Systeme mit
d'instrumentation et de contrôle-commande importants pour sicherheitstechnischer Bedeutung - Hardware-
la sûreté - Exigences applicables au matériel Anforderungen
(IEC 60987:2021) (IEC 60987:2021)
This European Standard was approved by CENELEC on 2021-08-16. 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
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60987:2021 E
European foreword
This document (EN IEC 60987:2021) consists of the text of IEC 60987:2021 prepared by IEC/TC 45
"Nuclear instrumentation".
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2022-08-16
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024-08-16
document have to be withdrawn
This document supersedes EN 60987:2015 and all of its amendments and corrigenda (if any).
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.
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.”
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60987:2021 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60671:2007 NOTE Harmonized as EN 60671:2011 (not modified)
IEC 61226 NOTE Harmonized as EN IEC 61226
IEC 62340:2007 NOTE Harmonized as EN 62340:2010 (not modified)
IEC 62645 NOTE Harmonized as EN IEC 62645
IEC 63046:2020 NOTE Harmonized as EN IEC 63046:2021 (not modified)
ISO 9001 NOTE Harmonized as EN ISO 9001
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 Where 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 60812 - Failure modes and effects analysis (FMEA EN IEC 60812 -
and FMECA)
IEC 60880 - Nuclear power plants - Instrumentation and EN 60880 -
control systems important to safety -
Software aspects for computer-based
systems performing category A functions
IEC 61000-1 series Electromagnetic compatibility (EMC) - PartE N 61000-1 series
1-2: General - Methodology for the
achievement of functional safety of
electrical and electronic systems including
equipment with regard to electromagnetic
phenomena
IEC 61025 - Fault tree analysis (FTA) EN 61025 -
IEC 61513 2011 Nuclear power plants - Instrumentation and EN 61513 2013
control important to safety - General
requirements for systems
IEC 61709 - Electric components - Reliability - EN 61709 -
Reference conditions for failure rates and
stress models for conversion
IEC 62003 - Nuclear power plants - Instrumentation, EN IEC 62003 -
control and electrical power systems -
Requirements for electromagnetic
compatibility testing
IEC 62138 2018 Nuclear power plants - Instrumentation and EN IEC 62138 2019
control systems important to safety -
Software aspects for computer-based
systems performing category B or C
functions
IEC 62566 2012 Nuclear power plants - Instrumentation and EN 62566 2014
control important to safety - Development
of HDL-programmed integrated circuits for
systems performing category A functions
Publication Year Title EN/HD Year
IEC 62566-2 - Nuclear power plants - Instrumentation and EN IEC 62566-2 -
control systems important to safety -
Development of HDL-programmed
integrated circuits - Part 2: HDL-
programmed integrated circuits for systems
performing category B or C functions
ISO 2859-0 - Sampling procedures for inspection by - -
attributes_- Part_0: Introduction to the
ISO_2859 attribute sampling system
IEC/IEEE 60780-- Nuclear facilities - Electrical equipment EN 60780-323 -
323 important to safety - Qualification
IEC/IEEE 60980-- Nuclear facilities - Equipment important to EN IEC/IEEE-
344 safety - Seismic qualification 60980-344
IEC 60987 ®
Edition 3.0 2021-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Nuclear power plants – Instrumentation and control important to safety –
Hardware requirements
Centrales nucléaires de puissance – Systèmes d’instrumentation et de contrôle-
commande importants pour la sûreté – Exigences applicables au matériel
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 27.120.20 ISBN 978-2-8322-9319-5
– 2 – IEC 60987:2021 © IEC 2021
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 10
4 Symbols and abbreviated terms . 17
5 Hardware safety lifecycle . 17
5.1 General . 17
5.2 Hardware safety lifecycle for class 1 and class 2 . 20
5.2.1 Project structure for class 1 and class 2 . 20
5.2.2 Quality management for class 1 and class 2 . 20
5.2.3 Verification of hardware for class 1 and class 2 . 21
5.3 Hardware safety lifecycle for class 3 . 23
5.3.1 Project structure and quality management for class 3 . 23
5.3.2 Verification of hardware for class 3 . 24
6 Hardware aspects of system requirements specification . 24
6.1 Hardware aspects of system requirements specification for class 1 and
class 2 . 24
6.1.1 General requirements for class 1 and class 2 . 24
6.1.2 Functional and performance requirements for class 1 and class 2 . 25
6.1.3 Reliability requirements for class 1 and class 2 . 26
6.1.4 Environmental conditions requirements for class 1 and class 2 . 27
6.1.5 Manufacturing requirements for class 1 and class 2 . 27
6.1.6 Documentation requirements for class 1 and class 2 . 27
6.2 Hardware aspects of system requirements specification for class 3. 27
6.2.1 General requirements for class 3 . 27
6.2.2 Reliability for class 3 . 27
6.2.3 Environmental conditions requirements for class 3 . 28
6.2.4 Documentation requirements for class 3 . 28
7 Selection of pre-existing components . 28
7.1 Selection of pre-existing components for class 1 and class 2 . 28
7.2 Selection of pre-existing components for class 3 . 29
8 Hardware aspects of system detailed design and implementation . 29
8.1 Hardware aspects of system detailed design and implementation for class 1
and class 2 . 29
8.1.1 General requirement for class 1 and class 2 . 29
8.1.2 Design activities for class 1 and class 2 . 30
8.1.3 Reliability for class 1 and class 2 . 30
8.1.4 Maintenance for class 1 and class 2 . 31
8.1.5 Power failure for class 1 and class 2 . 32
8.1.6 Design documentation for class 1 and class 2 . 32
8.2 Hardware aspects of system detailed design and implementation for class 3 . 33
8.2.1 General requirement for class 3 . 33
8.2.2 Reliability for class 3 . 33
8.2.3 Maintenance for class 3 . 33
9 Equipment (component) manufacturing . 33
IEC 60987:2021 © IEC 2021 – 3 –
9.1 Equipment (component) manufacturing for class 1 and class 2 . 33
9.1.1 Manufacturing quality management for class 1 and class 2 . 33
9.1.2 Training of personnel for class 1 and class 2 .
...
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