Nuclear power plants - Instrumentation, control and electrical power systems - Requirements for static uninterruptible DC and AC power supply systems

IEC 61225:2019 specifies the performance and the functional characteristics of the low voltage static uninterruptible power supply (SUPS) systems in a nuclear power plant and, for applicable parts, in general for nuclear facilities. An uninterruptible power supply is an electrical equipment which draws electrical energy from a source, stores it and maintains supply in a specified form by means inside the equipment to output terminals. A static uninterruptible power supply (SUPS) has no rotating parts to perform its functions. This third edition cancels and replaces the second edition published in 2005. This edition includes the following significant technical changes with respect to the previous edition: a) the principal objective of this edition is to address the requirements on the static uninterruptible power supplies in nuclear power plants; b) in addition to Instrumentation and Control (I&C) power supplies include all static uninterruptible power supplies; c) emphasize that the static uninterruptible power supplies shall protect the connected equipment (loads) from transients on the on-site AC distribution system (the immunity concept); d) in accordance with the defence-in-depth concept, this standard applies to static uninterruptible power supplies for all equipment, not only for equipment important to safety, with a graded approach to verification and validation; e) addition of the requirement that, when batteries are connected in parallel under abnormal operating conditions, they shall be properly protected with isolation devices to avoid any failure that may impair more than one division of the uninterruptible power supply.

Kernkraftwerke - Leittechnische Systeme und elektrische Stromversorgungssysteme - Anforderungen an statische unterbrechungsfreie Gleich- und Wechselstrom-Energieversorgungssysteme

Centrales nucléaire de puissance - Systèmes d'instrumentation, de contrôle-commande et d'alimentation électrique - Exigences pour les systèmes d'alimentation en courant alternatif et en courant continu statiques sans interruption

See the scope of IEC 61225:2019. Adoption of IEC 61225 is to be done without modification.

Nuklearne elektrarne - Merilni, nadzorni in elektroenergetski sistemi - Zahteve za statične neprekinjene enosmerne in izmenične napajalne sisteme (IEC 61225:2019)

General Information

Status
Published
Publication Date
26-Mar-2020
Current Stage
6060 - Document made available - Publishing
Start Date
27-Mar-2020
Due Date
02-Oct-2021
Completion Date
27-Mar-2020

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SLOVENSKI STANDARD
SIST EN IEC 61225:2020
01-junij-2020
Nuklearne elektrarne - Merilni, nadzorni in elektroenergetski sistemi - Zahteve za
statične neprekinjene enosmerne in izmenične napajalne sisteme (IEC 61225:2019)
Nuclear power plants - Instrumentation, control and electrical power systems -
Requirements for static uninterruptible DC and AC power supply systems (IEC
61225:2019)
Centrales nucléaire de puissance - Systèmes d'instrumentation, de contrôle-commande
et d'alimentation électrique - Exigences pour les systèmes d'alimentation en courant
alternatif et en courant continu statiques sans interruption (IEC 61225:2019)
Ta slovenski standard je istoveten z: EN IEC 61225:2020
ICS:
27.120.20 Jedrske elektrarne. Varnost Nuclear power plants. Safety
SIST EN IEC 61225:2020 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 61225:2020

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SIST EN IEC 61225:2020


EUROPEAN STANDARD EN IEC 61225

NORME EUROPÉENNE

EUROPÄISCHE NORM
March 2020
ICS 27.120.20

English Version
Nuclear power plants - Instrumentation, control and electrical
power systems - Requirements for static uninterruptible DC and
AC power supply systems
(IEC 61225:2019)
Centrales nucléaire de puissance - Systèmes To be completed
d'instrumentation, de contrôle-commande et d'alimentation (IEC 61225:2019)
électrique - Exigences pour les systèmes d'alimentation en
courant alternatif et en courant continu statiques sans
interruption
(IEC 61225:2019)
This European Standard was approved by CENELEC on 2020-02-17. 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
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN IEC 61225:2020 E

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SIST EN IEC 61225:2020
EN IEC 61225:2020 (E)
European foreword
This document (EN IEC 61225:2020) consists of the text of IEC 61225:2019 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) 2020-09-17
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2020-09-17
document have to be withdrawn

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 security measures in the
subject-matter covered by this standard.
Endorsement notice
The text of the International Standard IEC 61225:2019 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 60964 NOTE Harmonized as EN IEC 60964
IEC 61000-6-2 NOTE Harmonized as EN IEC 61000-6-2
IEC 61000-6-4 NOTE Harmonized as EN IEC 61000-6-4
IEC 61226 NOTE Harmonized as EN 61226
IEC 62040-3 NOTE Harmonized as EN 62040-3
IEC 62340 NOTE Harmonized as EN 62340

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