EN IEC 61936-1:2021

Power installations exceeding 1 kV AC and 1,5 kV DC - Part 1: AC

EN IEC 61936-1:2021

Name:EN IEC 61936-1:2021   Standard name:Power installations exceeding 1 kV AC and 1,5 kV DC - Part 1: AC
Standard number:EN IEC 61936-1:2021   language:English language
Release Date:26-Aug-2021   technical committee:CLC/TC 99X - Power installations exceeding 1 kV a.c. (1,5 kV d.c.)
Drafting committee:IEC/TC 99 - IEC_TC_99   ICS number:29.020 - Electrical engineering in general

SLOVENSKI STANDARD
01-november-2021
Nadomešča:
SIST EN 61936-1:2011
SIST EN 61936-1:2011/A1:2014
SIST EN 61936-1:2011/AC:2012
SIST EN 61936-1:2011/AC:2013
Elektroenergetski postroji za izmenične napetosti nad 1 kV in enosmerne
napetosti nad 1,5 kV - 1. del: Izmenična napetost
Power installations exceeding 1 kV AC and 1,5 kV DC - Part 1: AC
Ta slovenski standard je istoveten z: EN IEC 61936-1:2021
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 61936-1

NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2021
ICS 29.020; 29.080.01 Supersedes EN 61936-1:2010 and all of its amendments
and corrigenda (if any)
English Version
Power installations exceeding 1 kV AC and 1,5 kV DC - Part 1:
AC
(IEC 61936-1:2021)
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 1: Wechselstrom
Partie 1: Courant alternatif (IEC 61936-1:2021)
(IEC 61936-1:2021)
This European Standard was approved by CENELEC on 2021-08-11. 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 61936-1:2021 E

European foreword
The text of document 99/311/FDIS, future edition 3 of IEC 61936-1, 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) 2022–05–11
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024–08–11
document have to be withdrawn
This document supersedes EN 61936-1:2010 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.
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 61936-1:2021 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 60034-3 NOTE Harmonized as EN IEC 60034-3
IEC 60038 NOTE Harmonized as EN 60038
IEC 60068 (series) NOTE Harmonized as EN 60068 (series)
IEC 60076-13 NOTE Harmonized as EN 60076-13
IEC 60092 (series) NOTE Harmonized as EN 60092 (series)
IEC 60282-1 NOTE Harmonized as EN IEC 60282-1
IEC 60364-4-41 NOTE Harmonized as HD 60364-4-41
IEC 60364-7-729 NOTE Harmonized as HD 60364-7-729
IEC 60376 NOTE Harmonized as EN IEC 60376
IEC 60480 NOTE Harmonized as EN IEC 60480
IEC 60664-1 NOTE Harmonized as EN IEC 60664-1
IEC 60721 (series) NOTE Harmonized as EN 60721 (series)
IEC 60721-2-2 NOTE Harmonized as EN 60721-2-2
IEC 60721-2-3 NOTE Harmonized as EN 60721-2-3
IEC 60721-2-4 NOTE Harmonized as EN IEC 60721-2-4
IEC 60721-2-7 NOTE Harmonized as EN IEC 60721-2-7
IEC 60721-3-1 NOTE Harmonized as EN IEC 60721-3-1
IEC 60721-3-2 NOTE Harmonized as EN IEC 60721-3-2
IEC 60832 (series) NOTE Harmonized as EN 60832 (series)
IEC 60855-1 NOTE Harmonized as EN 60855-1
IEC 60865-1 NOTE Harmonized as EN 60865-1
IEC 60909 (series) NOTE Harmonized as EN 60909 (series)
IEC 61000 (series) NOTE Harmonized as EN IEC 61000 (series)
IEC 61039 NOTE Harmonized as EN 61039
IEC 61082-1 NOTE Harmonized as EN 61082-1
IEC 61243 (series) NOTE Harmonized as EN 61243 (series)
IEC 61355-1 NOTE Harmonized as EN 61355-1
IEC 61869 (series) NOTE Harmonized as EN IEC 61869 (series)
IEC 62271-4 NOTE Harmonized as EN 62271-4
IEC 62271-100 NOTE Harmonized as EN 62271-100
IEC 62271-102 NOTE Harmonized as EN IEC 62271-102
IEC 62271-103 NOTE Harmonized as EN 62271-103
IEC 62271-104 NOTE Harmonized as EN IEC 62271-104
IEC 62271-105 NOTE Harmonized as EN 62271-105
IEC 62271-206 NOTE Harmonized as EN 62271-206
IEC 62305 (series) NOTE Harmonized as EN 62305 (series)
IEC 81346 (series) NOTE Harmonized as EN IEC 81346 (series)
ISO 26800 NOTE Harmonized as EN ISO 26800
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 60034-1 - Rotating electrical machines - Part 1: - -
Rating and performance
IEC 60060-1 - High-voltage test techniques - Part 1: EN 60060-1 -
General definitions and test requirements
IEC 60071-1 2019 Insulation co-ordination - Part 1: EN IEC 60071-1 2019
Definitions, principles and rules
IEC 60071-2 - Insulation co-ordination – Part 2: EN IEC 60071-2 -
Application guidelines
IEC 60076 series Power transformers EN 60076 series
IEC 60079-0 - Explosive atmospheres - Part 0: EN IEC 60079-0 -
Equipment - General requirements
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 60255 series Measuring relays and protection equipment EN 60255 series
IEC 60331-1 - Tests for electric cables under fire EN IEC 60331-1 -
conditions - Circuit integrity - Part 1: Test
method for fire with shock at a temperature
of at least 830 °C for cables of rated
voltage up to and including 0,6/1,0 kV and
with an overall diameter exceeding 20 mm
IEC 60331-21 - Tests for electric cables under fire - -
conditions - Circuit integrity - Part 21:
Procedures and requirements - Cables of
rated voltage up to and including
0,6/1,0 kV
IEC 60332 series Tests on electric cables under fire EN 60332 series
conditions
IEC 60364 series Low-voltage electrical installations HD 60364 series
IEC 60479-1 2018 Effects of current on human beings and - -
livestock - Part 1: General aspects
IEC 60529 - Degrees of protection provided by - -
enclosures (IP Code)
IEC 60754 series Test on gases evolved during combustion EN 60754 series
of materials from cables
IEC 61034-1 - Measurement of smoke density of cables EN 61034-1 -
burning under defined conditions - Part 1:
Test apparatus
IEC 61219 - Live working - Earthing or earthing and EN 61219 -
short-circuiting equipment using lances as
a short-circuiting device - Lance earthing
IEC 61230 - Live working - Portable equipment for EN 61230 -
earthing or earthing and short-circuiting
IEC 62271-1 2017 High-voltage switchgear and controlgear - EN 62271-1 2017
Part 1: Common specifications for
alternating current switchgear and
controlgear
IEC 62271-200 - High-voltage switchgear and controlgear - EN IEC 62271-200 -
Part 200: AC metal-enclosed switchgear
and controlgear for rated voltages above
1 kV and up to and including 52 kV
IEC 62271-201 - High-voltage switchgear and controlgear - EN 62271-201 -
Part 201: AC solid-insulation enclosed
switchgear and controlgear for rated
voltages above 1 kV and up to and
including 52 kV
IEC 62271-202 - High-voltage switchgear and controlgear - EN 62271-202 -
Part 202: High-voltage/ low-voltage
prefabricated substation
IEC 62271-203 - High-voltage switchgear and controlgear - EN 62271-203 -
Part 203: Gas-insulated metal-enclosed
switchgear for rated voltages above 52 kV
IEC 62271-207 - High-voltage switchgear and controlgear - EN 62271-207 -
Part 207: Seismic qualification for gas-
insulated switchgear assemblies for rated
voltages above 52 kV
IEC 62305 series Protection against lightning EN 62305 series
IEC/TR 61000-5-2 - Electromagnetic compatibility (EMC) - Part - -
5: Installation and mitigation guidelines -
Section 2: Earthing and cabling
IEC/TR 62271-300 - High-voltage switchgear and controlgear - - -
Part 300: Seismic qualification of
alternating current circuit-breakers
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 60815-2 - Selection and dimensioning of high-voltage - -
insulators intended for use in polluted
conditions - Part 2: Ceramic and glass
insulators for a.c. systems
IEC/TS 60815-3 - Selection and dimensioning of high-voltage - -
insulators intended for use in polluted
conditions - Part 3: Polymer insulators for
a.c. systems
IEC/TS 61463 - Bushings - Seismic qualification - -
IEC/IEEE 82079-1 - Preparation of information for use EN -
(instructions for use) of products - Part 1: IEC/IEEE 82079-1
Principles and general requirements

IEC 61936-1
Edition 3.0 2021-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Power installations exceeding 1 kV AC and 1,5 kV DC –
Part 1: AC
Installations électriques de puissance de tension supérieure à 1 kV en courant
alternatif et 1,5 kV en courant continu –
Partie 1: Courant alternatif
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.020; 29.080.01 ISBN 978-2-8322-9887-9
– 2 – IEC 61936-1:2021 © IEC 2021
CONTENTS
FOREWORD . 8
INTRODUCTION . 11
1 Scope . 12
2 Normative references . 13
3 Terms and definitions . 15
3.1 General definitions . 15
3.2 Definitions concerning electrical power installations . 17
3.3 Definitions concerning types of electrical power installations. 18
3.4 Definitions concerning safety measures against electric shock . 18
3.5 Definitions concerning clearances . 19
3.6 Definitions concerning control and protection . 21
3.7 Definitions concerning earthing . 21
4 Fundamental requirements . 25
4.1 General . 25
4.1.1 General requirements . 25
4.1.2 Agreements between supplier and user . 26
4.2 Electrical requirements . 28
4.2.1 Methods of neutral earthing . 28
4.2.2 Voltage c
...

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