EN IEC 61936-2:2023
(Main)Power installations exceeding 1 kV AC and 1,5 kV DC - Part 2: DC
Power installations exceeding 1 kV AC and 1,5 kV DC - Part 2: DC
IEC 61936-2:2023 provides, in a convenient form, requirements for the design and the erection of DC installations in systems with nominal voltages above 1,5 kV DC, so as to provide safety and proper functioning for the use intended. For the purpose of interpreting this document, a DC installation is considered to be one of the following: a) A converter station or DC switching station; b) one (or more) DC generating or storage unit(s), such as solar farms or battery storage units, located on a single site, the DC installation includes DC equipment and cables with all associated power electronics, controlgear, switchgear and all electrical auxiliary systems. Connections between DC generating or storage units located on different sites are excluded; c) DC installation erected on offshore facilities for the purpose of generation, transmission, distribution and/or storage of electricity; or d) DC transition station (between overhead lines and underground cable or between different sections of underground cables). This International Standard does not apply to the design and erection of any of the following: - overhead and underground lines between separate installations; - electric railways; - mining equipment and installations; i- installations on ships according to IEC 60092 series and offshore units according to IEC 61892 series, which are used in the offshore petroleum industry for drilling, processing and storage purposes; - electrostatic equipment (e.g. electrostatic precipitators, spray-painting units); - test sites; - medical equipment, e.g. medical X-ray equipment; - valve hall or converter hall. This document does not apply to the requirements for carrying out live working on electrical installations. This document does not apply to the design of factory-built, type-tested thyristor valves, VSC valves and switchgear for which separate IEC standards exist. This first edition cancels and replaces the IEC TS 61936-2 published in 2015. This edition constitutes a technical revision. See the foreword of this edition for the list of significant technical changes with respect to the previous edition.
Starkstromanlagen mit Nennwechselspannungen über 1 kV AC und 1,5 kV DC - Teil 2: Gleichstrom
Installations électriques de puissance de tension supérieure à 1 kV en courant alternatif et 1,5 kV en courant continu - Partie 2: Courant continu
L'IEC 61936-2:2023 fournit, sous une forme pratique, des exigences relatives à la conception et au montage des installations à courant continu dans des systèmes dont les tensions nominales sont supérieures à 1,5 kV en courant continu, afin d'assurer la sécurité et le fonctionnement correct pour l'utilisation prévue. Pour les besoins d'interprétation du présent document, une installation à courant continu est considérée comme l'une des suivantes: une station de conversion ou un poste de commutation à courant continu; un ou plusieurs générateurs à courant continu ou une plusieurs unités de stockage, par exemple des parcs solaires ou unités de stockage par batteries, situés sur un seul site; l'installation à courant continu comprend les matériels et les câbles à courant continu avec toute l'électronique de puissance, tout l'appareillage et tous les systèmes auxiliaires électriques associés. Les liaisons entre les générateurs à courant continu ou les unités de stockage à courant continu situés sur des sites différents sont exclues; une installation à courant continu mise en œuvre sur des plateformes offshore pour la production, le transport, la distribution et/ou le stockage de l'énergie électrique; ou un poste de transition à courant continu (entre des lignes aériennes et un câble souterrain ou entre différentes sections de câbles souterrains). La présente Norme internationale ne s'applique pas à la conception et au montage des éléments suivants: lignes aériennes et souterraines entre différentes installations; chemins de fer électriques; matériels et installations de mine; installations sur les bateaux conformément à la série IEC 60092 et les unités offshore conformément à la série IEC 61892, qui sont utilisées dans l'industrie pétrolière offshore à des fins de forage, de traitement et de stockage; matériels électrostatiques (par exemple, précipitateurs électrostatiques, cabines de peinture); sites d'essai; matériel médical, par exemple, matériel à rayons X; bâtiment des valves ou bâtiment de conversion. Le présent document ne s'applique pas aux exigences pour la réalisation de travaux sous tension sur des installations électriques. Le présent document ne s'applique pas à la conception des valves à thyristors, des valves de VSC et des appareillages fabriqués en usine et soumis à des essais de type, pour lesquels des normes IEC distinctes existent. Cette première édition annule et remplace l'IEC TS 61936-2 parue en 2015. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente.
Elektroenergetski postroji za izmenične napetosti nad 1 kV in enosmerne napetosti nad 1,5 kV - 2. del: Enosmerna napetost
Ta del standarda IEC 61936 v ustrezni obliki podaja zahteve za načrtovanje in postavitev postrojev za enosmerne napetosti v sistemih z nazivno napetostjo nad 1,5 kV pri enosmernem toku, da se zagotovita varnost in primerno delovanje za predvideno uporabo.
Za namene razlage tega dokumenta se šteje, da je postroj za enosmerno napetost nekaj od tega:
a) pretvorniška postaja ali postaja za preklop enosmerne napetosti;
b) ena ali več enot za proizvodnjo ali shranjevanje enosmerne energije, kot so sončne elektrarne ali baterijske shranjevalne enote, ki se nahajajo na enem mestu, pri čemer postroj za enosmerno napetost vključuje opremo in kable za enosmerno napetost z vso pridruženo močnostno elektroniko, krmilnimi napravami, stikali in vsemi električnimi pomožnimi sistemi.
Povezave med enotami za proizvodnjo ali shranjevanje enosmerne energije na različnih mestih so izključene;
c) postroj za enosmerno napetost na morju, namenjen proizvodnji, prenosu, distribuciji in/ali shranjevanju električne energije; ali
d) tranzitna postaja za enosmerno napetost (med nadzemnimi vodi in podzemnim kablom ali med več deli podzemnih kablov).
Ta mednarodni standard se ne uporablja za načrtovanje in postavitev:
– nadzemnih in podzemnih vodov med ločenimi postroji;
– električne železnice;
– rudarske opreme in inštalacij;
– postrojev na ladjah v skladu s skupino standardov IEC 60092 in enot na morju v skladu s skupino standardov IEC 61892, ki se uporabljajo na področju naftne industrije na odprtem morju za vrtanje, obdelavo in shranjevanje;
– elektrostatične opreme (npr. elektrofiltri, enote barvanja z razpršilom);
– preskusnih mest;
– medicinske opreme, npr. medicinske rentgenske opreme;
– prostorov z ventili ali pretvorniki.
Dokument se ne uporablja za zahteve pri delu na električnih postrojih pod napetostjo.
Dokument se ne uporablja za načrtovanje tovarniško izdelanih, tipsko preskušenih tiristorskih ventilov, ventilov VSC in stikalnih naprav, za katere obstajajo ločeni standardi IEC.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2023
Elektroenergetski postroji za izmenične napetosti nad 1 kV in enosmerne
napetosti nad 1,5 kV - 2. del: Enosmerna napetost
Power installations exceeding 1 kV AC and 1,5 kV DC - Part 2: DC
Starkstromanlagen mit Nennwechselspannungen über 1 kV AC und 1,5 kV DC – Teil 2:
Gleichstrom
Installations électriques de puissance de tension supérieure à 1 kV en courant alternatif
et 1,5 kV en courant continu - Partie 2: Courant continu
Ta slovenski standard je istoveten z: EN IEC 61936-2:2023
ICS:
29.240.01 Omrežja za prenos in Power transmission and
distribucijo električne energije distribution networks in
na splošno general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 61936-2
NORME EUROPÉENNE
EUROPÄISCHE NORM November 2023
ICS 29.020; 29.080.01
English Version
Power installations exceeding 1 kV AC and 1,5 kV DC - Part 2:
DC
(IEC 61936-2:2023)
Installations électriques de puissance de tension supérieure Starkstromanlagen mit Nennwechselspannungen über 1 kV
à 1 kV en courant alternatif et 1,5 kV en courant continu - AC und 1,5 kV DC - Teil 2: Gleichstrom
Partie 2: Courant continu (IEC 61936-2:2023)
(IEC 61936-2:2023)
This European Standard was approved by CENELEC on 2023-10-31. 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,
Türkiye 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
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61936-2:2023 E
European foreword
The text of document 99/413/FDIS, future edition 1 of IEC 61936-2, prepared by IEC/TC 99 "Insulation
co-ordination and system engineering of high voltage electrical power installations above 1,0 kV AC
and 1,5 kV DC" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2024-07-31
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2026-10-31
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.
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 61936-2:2023 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 standard indicated:
IEC 62271-1 NOTE Approved as EN 62271-1
IEC/TR 62271-208 NOTE Approved as CLC/TR 62271-208
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.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60060-1 - High-voltage test techniques - Part 1: EN 60060-1 -
General definitions and test requirements
IEC 60071-1 - Insulation co-ordination - Part 1: EN IEC 60071-1 -
Definitions, principles and rules
IEC 60071-2 2023 Insulation co-ordination - Part 2: EN IEC 60071-2 2023
Application guidelines
IEC 60071-5 - Insulation co-ordination - Part 5: EN 60071-5 -
Procedures for high-voltage direct current
(HVDC) converter stations
IEC 60071-11 - Insulation co-ordination - Part 11 - EN IEC 60071-11 -
Definitions, principles and rules for HVDC
system
IEC 60079-10-1 - Explosive atmospheres - Part 10-1: EN IEC 60079-10-1 -
Classification of areas - Explosive gas
atmospheres
IEC 60079-10-2 - Explosive atmospheres - Part 10-2: EN 60079-10-2 -
Classification of areas - Explosive dust
atmospheres
IEC 60479-1 - Effects of current on human beings and - -
livestock
IEC 60529 - Degrees of protection provided by - -
enclosures (IP Code)
IEC 60664-1 Insulation coordination for equipment with EN IEC 60664-1 -
low-voltage supply systems - Part 1:
Principles, requirements and tests
IEC/TS 60815-1 - Selection and dimensioning of high-voltage - -
insulators intended for use in polluted
conditions - Part 1: Definitions, information
and general principles
IEC/TS 60815-4 - Selection and dimensioning of high-voltage - -
insulators intended for use in polluted
conditions - Part 4: Insulators for d.c.
systems
IEC 61000-6-5 2015 Electromagnetic compatibility (EMC) - Part EN 61000-6-5 2015
6-5: Generic standards - Immunity for
equipment used in power station and
substation environment
IEC 61936-1 2021 Power installations exceeding 1 kV AC and EN IEC 61936-1 2021
1,5 kV DC - Part 1: AC
IEC 61975 - High-voltage direct current (HVDC) EN 61975 -
installations - System tests
IEC/IEEE 60076-57-- Power transformers - Part 57-129: - -
129 Transformers for HVDC applications
IEC 61936-2 ®
Edition 1.0 2023-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Power installations exceeding 1 kV AC and 1,5 kV DC –
Part 2: DC
Installations électriques de puissance de tension supérieure à 1 kV en courant
alternatif et 1,5 kV en courant continu –
Partie 2: Courant continu
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.020, 29.080.01 ISBN 978-2-8322-7541-2
– 2 – IEC 61936-2:2023 © IEC 2023
CONTENTS
FOREWORD . 6
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 11
3 Terms, definitions, symbols and abbreviated terms . 12
3.1 Terms and definitions . 12
3.2 Symbols and abbreviated terms . 14
4 Fundamental requirements . 14
4.1 General . 14
4.1.1 General requirements . 14
4.1.2 Agreements between supplier and user . 16
4.2 Electrical requirements . 17
4.2.1 Methods of DC neutral point earthing . 17
4.2.2 Voltage classification . 19
4.2.3 Current in normal operation . 19
4.2.4 Short-circuit current . 19
4.2.5 Rated frequency . 19
4.2.6 Corona . 20
4.2.7 Electric and magnetic fields . 20
4.2.8 Overvoltages . 20
4.2.9 Harmonics . 20
4.2.10 Electromagnetic compatibility . 21
4.2.11 Radio interference . 21
4.3 Mechanical requirements . 22
4.4 Climatic and environmental conditions . 22
4.4.1 General . 22
4.4.2 Normal conditions . 23
4.4.3 Special conditions . 24
4.5 Particular requirements . 25
4.5.1 Effects of small animals and micro-organisms. 25
4.5.2 Noise level . 25
4.5.3 Transport . 26
5 Insulation . 26
5.1 General . 26
5.2 Selection of insulation level. 26
5.2.1 General . 26
5.2.2 Consideration of methods of neutral earthing . 26
5.2.3 Consideration of rated withstand voltages for AC and specified
withstand voltages for DC . 26
5.3 Verification of withstand values . 26
5.4 Minimum clearances of live parts . 27
5.5 Minimum clearances between parts under special conditions . 27
5.6 Tested connection zones . 27
6 Electrical Equipment . 28
6.1 General requirements . 28
6.2 Specific requirements . 28
IEC 61936-2:2023 © IEC 2023 – 3 –
6.2.1 Switching devices . 28
6.2.2 Power transformers and reactors . 28
6.2.3 Prefabricated type-tested switchgear . 28
6.2.4 Instrument transformers . 28
6.2.5 Surge arresters . 29
6.2.6 Capacitors . 29
6.2.7 Line traps . 29
6.2.8 Insulators .
...
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