IEC 61980-1:2020

Electric vehicle wireless power transfer (WPT) systems - Part 1: General requirements

IEC 61980-1:2020 applies to the supply device for charging electric road vehicles using wireless methods at standard supply voltages per IEC 60038 up to 1 000 V AC and up to 1 500 V DC.
Electric road vehicles (EV) covers road vehicles, including plug-in hybrid road vehicles (PHEV) that derive all or part of their energy from on-board rechargeable energy storage systems (RESS).
This document also applies to wireless power transfer (WPT) equipment supplied from on-site storage systems (e.g. buffer batteries).
The aspects covered in this document include
• the characteristics and operating conditions of a supply device,
• the specification for required level of electrical safety of a supply device,
• communication between EV device and vehicle to enable and control WPT,
• efficiency, alignment and other activities to enable WPT, and
• specific EMC requirements for a supply device.
The following aspects are under consideration for future documents:
• requirements for MF-WPT systems supplying power to EVs in motion;
• requirements for bidirectional power transfer.
This document does not apply to:
• safety aspects related to maintenance,
• WPT system for trolley buses, rail vehicles and vehicles designed primarily for use off‑road, and
• any safety or EMC requirements for the vehicle side.
IEC 61980-1:2020 cancels and replaces the first edition published in 2015. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) the contents of IEC 61980-1:2015 have been re-organized so that this document is generally applicable to any WPT technologies;
b) technology specific requirements, mostly for MF-WPT in the main text of IEC 61980-1:2015, have been transferred to IEC 61980-2 and IEC 61980-3;
c) Annex A, Annex B and Annex C have been removed and contents of these annexes have been transferred to the relevant technology specific parts of the IEC 61980 series;
d) duplications and overlaps of the requirements within IEC 61980-1:2015 have been resolved;
e) terms and definitions which are specified in IEC 61851-1:2017 and are applicable for WPT system have been directly described in this document, with modification for some terms. The reference to IEC 61851-1 is withdrawn.

Systèmes de transfert de puissance sans fil (WPT) pour véhicules électriques - Partie 1: Exigences générales

L'IEC 61980-1:2020 s'applique aux dispositifs d'alimentation pour la charge des véhicules électriques routiers au moyen de technologies sans fil, à des tensions d'alimentation normalisées conformément à l'IEC 60038, jusqu'à des tensions alternatives de 1 000 V et des tensions continues de 1 500 V.
Les véhicules électriques (VE) routiers couvrent les véhicules routiers, y compris les véhicules routiers hybrides rechargeables (VEHR), qui tirent tout ou partie de leur énergie de systèmes rechargeables de stockage d'énergie (RESS) embarqués.
Le présent document s'applique également aux matériels de transfert de puissance sans fil (WPT) qui équipent les systèmes de stockage sur site (par exemple, batteries tampons).
Le présent document couvre les aspects suivants:
• les caractéristiques et conditions de fonctionnement d'un dispositif d'alimentation;
• la spécification concernant le niveau exigé de sécurité électrique d'un dispositif d'alimentation;
• la communication entre le dispositif du VE et le véhicule pour permettre et contrôler le WPT;
• le rendement, l'alignement et autres activités pour permettre le WPT; et
• les exigences de CEM spécifiques pour un dispositif d'alimentation.
Les aspects suivants sont à l'étude pour de futurs documents:
• les exigences concernant les systèmes MF-WPT qui alimentent les VE en mouvement;
• les exigences concernant le transfert de puissance bidirectionnel.
Le présent document ne s'applique pas:
• aux aspects de sécurité relatifs à la maintenance;
• aux systèmes WPT pour trolleybus, véhicules ferroviaires et véhicules conçus principalement pour une exploitation non routière;
• aux exigences de sécurité ou de CEM côté véhicule.
L'IEC 61980-1:2020 annule et remplace la première édition parue en 2015. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) le contenu de l'IEC 61980-1:2015 a été réorganisé de sorte que le présent document soit généralement applicable à toutes les technologies WPT;
b) les exigences spécifiques à la technologie, principalement pour le transfert de puissance sans fil par champ magnétique, dans le texte principal de l'IEC 61980-1:2015 ont été transférées dans l'IEC 61980-2 et l'IEC 61980-3;
c) les Annexes A, B et C ont été supprimées et le contenu de ces annexes a été transféré dans les parties spécifiques à la technologie pertinentes de la série IEC 61980;
d) les redondances et les chevauchements des exigences de l'IEC 61980-1:2015 ont été résolus;
e) les termes et définitions qui sont spécifiés dans l'IEC 61851-1:2017 et qui sont applicables au système WPT sont directement décrits dans le présent document, avec des modifications pour certains termes; la référence à l'IEC 61851-1 a été supprimée.

General Information

• Status: Published
• Publication Date: 18-Nov-2020
• ICS: 43.120 - Electric road vehicles
• Technical Committee: TC 69 - Electrical power/energy transfer systems for electrically propelled road vehicles and industrial trucks
• Drafting Committee: WG 7 - TC 69/WG 7
• Current Stage: PPUB - Publication issued
• Start Date: 19-Nov-2020
• Completion Date: 04-Dec-2020

Relations

• Revises: IEC 61980-1:2015 - Electric vehicle wireless power transfer (WPT) systems - Part 1: General requirements
• Effective Date: 05-Sep-2023
• Revises: IEC 61980-1:2015/COR1:2017 - Corrigendum 1 - Electric vehicle wireless power transfer (WPT) systems - Part 1: General requirements
• Effective Date: 05-Sep-2023

Overview

IEC 61980-1:2020 sets the general requirements for electric vehicle wireless power transfer (WPT) systems, specifically focusing on the supply devices used for charging electric road vehicles (EVs) through wireless methods. This standard applies to supply devices operating at up to 1,000 V AC and 1,500 V DC according to IEC 60038. Electric road vehicles covered by this standard include battery electric vehicles and plug-in hybrid electric vehicles (PHEVs) that utilize onboard rechargeable energy storage systems (RESS).

This second edition of IEC 61980-1 replaces the 2015 version and represents a significant technical revision by broadening the scope to be applicable to any WPT technology and reorganizing technology-specific requirements into separate parts of the IEC 61980 series. It also addresses essential aspects such as electrical safety, communication protocols, efficiency, alignment, and electromagnetic compatibility (EMC) of wireless power supplies.

Key Topics

• Scope and Applicability
  Covers supply devices for wireless charging of electric road vehicles, including those powered by onsite energy storage, but excludes off-road vehicles, trolley buses, and rail vehicles. Vehicle-side requirements, as well as safety aspects during maintenance, are outside this document's scope.

• Safety and Protection Requirements
  Includes comprehensive specifications for electrical safety of supply devices, such as protection against electric shock, overcurrent, short circuit withstand, insulation resistance, dielectric strength, and temperature rise limitations to prevent thermal incidents.

• Communication Systems
  Defines communication protocols between the wireless power supply device and the vehicle to enable control, efficiency optimization, and alignment during power transfer, ensuring interoperability and safe operation.

• Efficiency and Alignment
  Specifies performance-related criteria including power transfer efficiency and alignment accuracy between transmitter and receiver components to maximize wireless charging effectiveness.

• Electromagnetic Compatibility (EMC)
  Addresses immunity and emission requirements ensuring WPT systems do not cause or suffer interference within their operating environments. It includes specific limits for magnetic field strengths in targeted frequency ranges.

• Construction and Mechanical Requirements
  Details requirements for device dimensions, mechanical strength, resistance to heat and fire, corrosion resistance, and protective enclosures, ensuring product durability and user safety.

• Marking and Instructions
  Specifies requirements for clear labeling and operating instructions to ensure correct installation and use.

Applications

IEC 61980-1:2020 is essential for manufacturers, designers, and testing laboratories involved in:

• Development and certification of wireless power transfer supply devices for electric vehicles
• Integration of wireless charging infrastructure supporting electric road vehicles and plug-in hybrids
• Ensuring compliance with international safety, performance, and EMC standards in EV wireless charging systems
• Facilitating interoperability and communication standards between charging infrastructure and EVs
• Supporting the expansion of wireless charging technologies in urban, residential, and commercial charging scenarios

This standard guides the creation of reliable, safe, and efficient wireless charging systems that promote the adoption of electric mobility by providing convenient, contactless EV charging solutions.

Related Standards

• IEC 60038 – Standard voltages, providing the foundational voltage ranges applicable to WPT supply devices
• IEC 61851-1 – Electric vehicle conductive charging system – General requirements (referenced and modified for WPT terminology)
• IEC 61980-2 & IEC 61980-3 – Technology-specific standards covering mid-frequency WPT systems and other wireless power transfer technologies
• EMC Standards – Various IEC standards addressing electromagnetic compatibility that supplement the EMC requirements in this standard

These related standards ensure comprehensive safety, interoperability, and performance in the overall ecosystem of electric vehicle charging infrastructure.

---

Keywords: IEC 61980-1:2020, electric vehicle wireless power transfer, EV wireless charging, WPT safety requirements, wireless charging system standard, EV supply device standards, electric vehicle charging interoperability, EMC for wireless power transfer, electric mobility standards, IEC WPT series.

Standards Content (Sample)

IEC 61980-1 ®
Edition 2.0 2020-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electric vehicle wireless power transfer (WPT) systems –
Part 1: General requirements
Systèmes de transfert de puissance sans fil (WPT) Pour véhicules électriques –
Partie 1: Exigences générales
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: [phone]
3, rue de Varembé [e-mail]
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.

need further assistance, please contact the Customer Service

Centre: [e-mail].
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

Recherche de publications IEC - Electropedia - www.electropedia.org
webstore.iec.ch/advsearchform Le premier dictionnaire d'électrotechnologie en ligne au
La recherche avancée permet de trouver des publications IEC monde, avec plus de 22 000 articles terminologiques en
en utilisant différents critères (numéro de référence, texte, anglais et en français, ainsi que les termes équivalents dans
comité d’études,…). Elle donne aussi des informations sur les 16 langues additionnelles. Egalement appelé Vocabulaire
projets et les publications remplacées ou retirées. Electrotechnique International (IEV) en ligne.

IEC Just Published - webstore.iec.ch/justpublished Glossaire IEC - std.iec.ch/glossary
Restez informé sur les nouvelles publications IEC. Just 67 000 entrées terminologiques électrotechniques, en anglais
Published détaille les nouvelles publications parues. et en français, extraites des articles Termes et Définitions des
Disponible en ligne et une fois par mois par email. publications IEC parues depuis 2002. Plus certaines entrées
antérieures extraites des publications des CE 37, 77, 86 et
Service Clients - webstore.iec.ch/csc CISPR de l'IEC.

Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
[e-mail].
IEC 61980-1 ®
Edition 2.0 2020-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electric vehicle wireless power transfer (WPT) systems –

Part 1: General requirements
Systèmes de transfert de puissance sans fil (WPT) Pour véhicules électriques –

Partie 1: Exigences générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 43.120 ISBN 978-2-8322-9022-4

– 2 – IEC 61980-1:2020 © IEC 2020
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 11
4 Abbreviated terms . 17
5 General . 17
6 Classification . 17
6.1 General . 17
6.2 Power transfer technology . 18
6.3 Environmental condition . 18
6.4 Electric connection to supply network . 18
6.5 Access . 18
6.6 Protection against electrical shock . 18
7 General supply device requirements . 18
7.1 General architecture . 18
7.2 Power transfer requirements . 19
7.3 Efficiency . 19
7.4 Alignment . 19
7.5 Activities provided by WPT system . 19
8 Communication . 19
9 Power transfer interoperability . 19
10 Protection against electric shock . 20
10.1 General requirements . 20
10.2 Degrees of protection against access to hazardous-live-parts . 20
10.3 Stored energy – Discharge of capacitors . 20
10.3.1 Stored energy under abnormal or fault conditions . 20
10.3.2 Disconnection of plug and cable connected supply device . 20
10.4 Fault protection . 20
10.5 Protective conductor dimensions . 21
10.6 Residual current protection device . 21
10.7 Telecommunication network . 22
11 Specific requirements for WPT systems . 22
11.1 General . 22
11.2 Touch current . 22
11.3 Insulation resistance . 22
11.4 Dielectric withstand characteristic . 23
11.4.1 AC dielectric withstand . 23
11.4.2 Impulse dielectric withstand (1,2/50 μs) . 23
11.5 Overcurrent protection and short circuit withstand . 24
11.5.1 General . 24
11.5.2 Maximum current for plug and cable connected supply device . 24
11.6 Temperature rise and protection against thermal incidents . 25
11.6.1 General . 25
11.6.2 Permissible surface temperature of accessible parts of the WPT system . 25

11.6.3 Temperature limits for materials . 25
11.6.4 Protection against burns from heating of foreign objects . 26
11.7 Resistance to abnormal heat and fire due to internal electric effects . 26
11.7.1 General . 26
11.7.2 Resistance of insulating materials to heat . 26
11.7.3 Resistance of insulating materials to abnormal heat and fire due to
internal electric effects . 26
11.8 Protection from electromagnetic field . 27
11.9 Emergency service disconnect (optional) . 27
12 Power cable requirements . 27
13 Constructional requirements . 27
13.1 Supply device dimensions and installation requirements . 27
13.2 Connection of plug and cable connected supply device . 27
13.3 Earthing electrode and continuity . 27
13.4 IP degrees . 28
13.5 Breaking capacity of switching devices . 28
13.5.1 Switch and switch-disconnector . 28
13.5.2 Contactor . 28
13.5.3 Circuit-breaker . 28
13.5.4 Relays . 28
13.6 Clearance and creepage distances . 28
14 Strength of materials and parts . 29
14.1 General . 29
14.2 Verification of mechanical strength for the enclosure of the supply device . 29
14.3 Resistance to corrosion . 29
14.4 Properties of insulating materials . 30
14.4.1 Verification of thermal stability of enclosures . 30
14.4.2 Resistance to fire (glow wire) . 30
14.4.3 Ball pressure test . 30
14.4.4 Resistance to tracking . 30
14.4.5 Resistance to ultraviolet radiation . 30
15 Service and test conditions . 30
15.1 General . 30
15.2 Environmental test . 31
15.2.1 Ambient air temperature . 31
15.2.2 Ambient humidity . 31
15.2.3 Dry heat . 32
15.3 Heat test under solar radiation . 32
16 Electromagnetic compatibility (EMC) . 32
16.1 Load and operating conditions . 32
16.1.1 Load conditions . 32
16.1.2 Operating conditions . 32
16.2 Immunity requirements . 33
16.3 Disturbance requirements . 35
16.3.1 General . 35
16.3.2 Limits and test conditions for disturbances in the low frequency (LF)
range . 36
16.3.3 Limits and test conditions for disturbances in the radio frequency (RF)
range . 36

– 4 – IEC 61980-1:2020 © IEC 2020
17 Marking and instructions . 41
17.1 General . 41
17.2 Marking of supply device . 41
17.3 Legibility . 41
17.4 Connection instructions . 41
Bibliography . 42

Figure 1 – Example of a WPT system . 19

Table 1 – WPT equipment immunity requirement – Environment other than residential . 34
Table 2 – WPT equipment immunity requirement – Residential environment . 35
Table 3 – Low frequency disturbances . 36
Table 4 – Radio frequency (RF) disturbances . 37
Table 5 – Limits of the magnetic field strength for WPT system for class A in the range
9 kHz to 150 kHz . 38
Table 6 – Limits of the magnetic field strength for WPT system for class B in the range
9 kHz to 150 MHz . 39
Table 7 – Limits of the magnetic field strength for WPT system for class A in the range
150 kHz to 30 MHz . 40
Table 8 – Limits of the magnetic field strength for WPT system for class B in the range
150 kHz to 30 MHz . 40

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC VEHICLE WIRELESS POWER TRANSFER (WPT) SYSTEMS –

Part 1: General requirements
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 61980-1 has been prepared by IEC technical committee 69:
Electrical power/energy transfer systems for electrically propelled road vehicles and industrial
trucks.
This second edition cancels and replaces the first edition published in 2015. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the contents of IEC 61980-1:2015 have been re-organized so that this document is generally
applicable to any WPT technologies;
b) technology specific requirements, mostly for MF-WPT in the main text of IEC 61980-1:2015,
have been transferred to IEC 61980-2 and IEC 61980-3;
c) Annex A, Annex B and Annex C have been removed and contents of these annexes have
been transferred to the relevant technology specific parts of the IEC 61980 series;
d) duplications and overlaps of the requirements within IEC 61980-1:2015 have been resolved;

– 6 – IEC 61980-1:2020 © IEC 2020
e) terms and definitions which are specified in IEC 61851-1:2017 and are applicable for WPT
system have been directly described in this document, with modification for some terms.
The reference to IEC 61851-1 is withdrawn.
The text of this International Standard is based on the following documents:
FDIS Report on voting
69/731/FDIS 69/736/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.
A list of all parts of the IEC 61980 series, published under the general title Electric vehicle
wireless power transfer (WPT) systems, can be found on the IEC website.
In this document, the following print types are used:
– test specifications and instructions regarding the application of this document: italic type;
– notes: smaller roman type.
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.
INTRODUCTION
The IEC 61980 series is published in separate parts according to the following structure:
• IEC 61980-1 covers general requirements for electric road vehicle (EV) wireless power
transfer (WPT) systems including general background and definitions (e.g. efficiency,
electrical safety, EMC, EMF);
• IEC 61980-2 specifically applies to magnetic field wireless power transfer (MF-WPT) for
electric road vehicles and covers specific requirements for system activities and
communication between the electric road vehicle side and the off-board side including
general background and definitions;
• IEC 61980-3 covers specific power transfer requirements for the off-board side of magnetic
field wireless power transfer systems for electric road vehicles (e.g. efficiency, electrical
safety, EMC, EMF).
The requirements described in this document are general. The technical requirements for the
various wireless power transfer technologies are specific. The requirements for magnetic field-
wireless power transfer systems are described in IEC 61980-2 and IEC 61980-3. Further parts
of this series are reserved to other technologies.
Reference to "technology specific parts" always refer to other parts of the IEC 61980 series.

– 8 – IEC 61980-1:2020 © IEC 2020
ELECTRIC VEHICLE WIRELESS POWER TRANSFER (WPT) SYSTEMS –

Part 1: General requirements
1 Scope
This part of IEC 61980 applies to the supply device for charging electric road vehicles using
wireless methods at standard supply voltages per IEC 60038 up to 1 000 V AC and up to
1 500 V DC.
Electric road vehicles (EV) covers road vehicles, including plug-in hybrid road vehicles (PHEV)
that derive all or part of their energy from on-board rechargeable energy storage systems
(RESS).
This document also applies to wireless power transfer (WPT) equipment supplied from on-site
storage systems (e.g. buffer batteries).
The aspects covered in this document include
• the characteristics and operating conditions of a supply device,
• the specification for required level of electrical safety of a supply device,
• communication between EV device and vehicle to enable and control WPT,
• efficiency, alignment and other activities to enable WPT, and
• specific EMC requirements for a supply device.
The following aspects are under consideration for future documents:
• requirements for MF-WPT systems supplying power to EVs in motion;
• requirements for bidirectional power transfer.
This document does not apply to:
• safety aspects related to maintenance,
• WPT system for trolley buses, rail vehicles and vehicles designed primarily for use off‑road,
and
• any safety or EMC requirements for the vehicle side.
2 Normative references
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.
IEC 60038, IEC standard voltages
IEC 60068-2-1, Environmental testing – Part 2‑1: Tests – Test A: Cold
IEC 60068-2-2, Environmental testing – Part 2‑2: Tests – Test B: Dry heat

IEC 60068-2-5, Environmental testing – Part 2‑5: Tests – Test S: Simulated solar radiation at
ground level and guidance for solar radiation testing and weathering
IEC 60068-2-11, Basic environmental testing procedures – Part 2‑11: Tests – Test Ka: Salt mist
IEC 60068-2-30, Environmental testing – Part 2‑30: Tests – Test Db: Damp heat, cyclic (12 h +
12 h cycle)
IEC 60068-2-78, Environmental testing – Part 2-78: Tests – Test Cab: Damp heat, steady state
IEC 60085, Electrical insulation – Thermal evaluation and designation
IEC 60216 (all parts), Electrical insulating materials – Thermal endurance properties
IEC 60269 (all parts), Low-voltage fuses
IEC 60309-1, Plugs, socket-outlets and couplers for industrial purposes – Part 1: General
requirements
IEC 60309-2, Plugs, socket-outlets and couplers for industrial purposes – Part 2: Dimensional
interchangeability requirements for pin and contact-tube accessories
IEC 60320 (all parts), Appliance couplers for household and similar general purposes
IEC 60364-4-41:2005, Low‑voltage electrical installations – Part 4‑41: Protection for safety –
Protection against electric shock
IEC 60364-4-41:2005/AMD1:2017
IEC 60364-4-42, Low‑voltage electrical installations – Part 4‑42: Protection for safety –
Protection against thermal effects
IEC 60364-4-43, Low‑voltage electrical installations – Part 4‑43: Protection for safety –
Protection against overcurrent
IEC 60364-5-54, Low‑voltage electrical installations – Part 5‑54: Selection and erection of
electrical equipment – Earthing arrangements and protective conductors
IEC 60364-7-722:2018, Low‑voltage electrical installations – Part 7‑722: Requirements for
special installations or locations – Supplies for electric vehicles
IEC 60529, Degrees of protection provided by enclosures (IP Code)
IEC 60664-1:2020, Insulation coordination for equipment within low‑voltage systems – Part 1:
Principles, requirements and tests
IEC 60695-2-11, Fire hazard testing – Part 2‑11: Glowing/hot‑wire based test methods –
Glow‑wire flammability test method for end‑products (GWEPT)
IEC 60695-2-12, Fire hazard testing – Part 2‑12: Glowing/hot‑wire based test methods –
Glow‑wire flammability index (GWFI) test method for materials
IEC 60695-10-2, Fire hazard testing – Part 10‑2: Abnormal heat – Ball pressure test method
IEC 60884-1, Plugs and socket-outlets for household and similar purposes – Part 1: General
requirements
– 10 – IEC 61980-1:2020 © IEC 2020
IEC 60898 (all parts), Electrical accessories – Circuit‑breakers for overcurrent protection for
household and similar installations
IEC 60898-1, Electrical accessories – Circuit-breakers for overcurrent protection for household
and similar installations – Part 1: Circuit-breakers for a.c. operation
IEC 60947-2, Low‑voltage switchgear and controlgear – Part 2: Circuit‑breakers
IEC 60947-3, Low‑voltage switchgear and controlgear – Part 3: Switches, disconnectors,
switch‑disconnectors and fuse‑combination units
IEC 60947-4-1, Low‑voltage switchgear and controlgear – Part 4‑1: Contactors and motor‑
starters – Electromechanical contactors and motor‑starters
IEC 60947-6-2, Low‑voltage switchgear and controlgear – Part 6‑2: Multiple function equipment
– Control and protective switching devices (or equipment) (CPS)
IEC 60950-1:2005, Information technology equipment – Safety – Part 1: General requirements
IEC 60950-1:2005/AMD1:2009
IEC 60950-1:2005/AMD2:2013
IEC 60990:2016, Methods of measurement of touch current and protective conductor current
IEC 61000-3-2, Electromagnetic compatibility (EMC) – Part 3‑2: Limits – Limits for harmonic
current emissions (equipment input current ≤ 16 A per phase)
IEC 61000-3-3, Electromagnetic compatibility (EMC) – Part 3‑3: Limits – Limitation of voltage
changes, voltage fluctuations and flicker in public low‑voltage supply systems, for equipment
with rated current ≤ 16 A per phase and not subject to conditional connection
IEC 61000-3-11, Electromagnetic compatibility (EMC) – Part 3‑11: Limits – Limitation of voltage
changes, voltage fluctuations and flicker in public low‑voltage supply systems – Equipment with
rated current ≤ 75 A and subject to conditional connection
IEC 61000-3-12, Electromagnetic compatibility (EMC) – Part 3‑12: Limits – Limits for harmonic
currents produced by equipment connected to public low‑voltage systems with input
current > 16 A and ≤ 75 A per phase
IEC 61000-4-2, Electromagnetic compatibility (EMC) – Part 4‑2: Testing and measurement
techniques – Electrostatic discharge immunity test
IEC 61000-4-3, Electromagnetic compatibility (EMC) – Part 4‑3: Testing and measurement
techniques – Radiated, radio‑frequency, electromagnetic field immunity test
IEC 61000-4-4, Electromagnetic compatibility (EMC) – Part 4‑4: Testing and measurement
techniques – Electrical fast transient/burst immunity test
IEC 61000-4-5, Electromagnetic compatibility (EMC) – Part 4‑5: Testing and measurement
techniques – Surge immunity test
IEC 61000-4-6, Electromagnetic compatibility (EMC) – Part 4‑6: Testing and measurement
techniques – Immunity to conducted disturbances, induced by radio‑frequency fields
IEC 61000-4-8, Electromagnetic compatibility (EMC) – Part 4‑8: Testing and measurement
techniques – Power frequency magnetic field immunity test

IEC 61000-4-11, Electromagnetic compatibility (EMC) – Part 4‑11: Testing and measurement
techniques – Voltage dips, short interruptions and voltage variations immunity tests for
equipment with input current up to 16 A per phase
IEC 61000-4-34, Electromagnetic compatibility (EMC) – Part 4‑34: Testing and measurement
techniques – Voltage dips, short interruptions and voltage variations immunity tests for
equipment with input current more than 16 A per phase
‑breakers without integral overcurrent protection
IEC 61008-1, Residual current operated circuit
for household and similar uses (RCCBs) – General rules
IEC 61009-1, Residual current operated circuit‑breakers with integral overcurrent protection for
household and similar uses (RCBOs) – General rules
IEC 61180, High‑voltage test techniques for low‑voltage equipment – Definitions, test and
procedure requirements, test equipment
IEC 61439-1:2020, Low‑voltage switchgear and controlgear assemblies – Part 1: General rules
IEC 61439-7:2018, Low‑voltage switchgear and controlgear assemblies – Part 7: Assemblies
for specific applications such as marinas, camping sites, market squares, electric vehicles
charging stations
IEC 61810-1, Electromechanical elementary relays – Part 1: General and safety requirements
IEC 61980 (all parts), Electric vehicle wireless power transfer (WPT) systems
IEC 62423, Type F and type B residual current operated circuit‑breakers with and without
integral overcurrent protection for household and similar uses
IEC Guide 117:2010, Electrotechnical equipment – Temperatures of touchable hot surfaces
CISPR 11:2015, Industrial, scientific and medical equipment – Radio‑frequency disturbance
characteristics – Limits and methods of measurement
CISPR 11:2015/AMD1:2016
CISPR 11:2015/AMD2:2019
CISPR 32:2015, Electromagnetic compatibility of multimedia equipment – Emission
requirements
ISO 7010, Graphical symbols – Safety colours and safety signs – Registered safety signs
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp

– 12 – IEC 61980-1:2020 © IEC 2020
3.1
wireless power transfer
WPT
transfer of electrical energy from a power source to an electrical load without galvanic
connection
3.2
WPT system
system comprising all necessary components for wireless power transfer and control
SEE Figure 1.
3.3
charging
all functions necessary to condition voltage and/or current provided by the AC or DC supply
network to assure the supply of electric energy to RESS
[SOURCE: IEC 61851-1:2017, 3.1.8]
3.4
conductive part
part which can carry electric current
[SOURCE: IEC 60050-195:1998, 195-01-06]
3.5
live part
conductor or conductive part intended to be energized in normal operation, including a neutral
conductor, but by convention not a PEN conductor or PEM conductor or PEL conductor
[SOURCE: IEC 60050-195:1998, 195-02-19, modified – The note to entry has been deleted.]
3.6
hazardous-live-part
live part which, under certain conditions, can give a harmful electric shock
[SOURCE: IEC 60050-195:1998, 195-06-05]
3.7
exposed conductive part
conductive part of electrical equipment, which can be touched and which is not normally live,
but which can become live when basic insulation fails
[SOURCE: IEC 60050-442:1998, 442-01-21, modified – The note to entry has been deleted.]
3.8
fault protection
protection against electric shock under single fault conditions
[SOURCE: IEC 60050-195:1998, 195-06-02]
3.9
insulation
all the materials and parts used to insulate conductive elements of a device, or a set of
properties which characterize the ability of insulation to provide its function
[SOURCE: IEC 61851-1:2017, 3.2.8]

3.10
basic insulation
insulation of hazardous-live-parts which provides basic protection
[SOURCE: IEC 60050-826:2004, 826-12-14, modified – The note has been deleted.]
3.11
supplementary insulation
independent insulation applied in addition to basic insulation for fault protection
[SOURCE: IEC 60050-826:2004, 826-12-15]
3.12
double insulation
insulation comprising both basic insulation and supplementary insulation
[SOURCE: IEC 60050-826:2004, 826-12-16]
3.13
reinforced insulation
insulation of hazardous-live-parts which provides a degree of protection against electric shock
equivalent to double insulation
Note 1 to entry: Reinforced insulation may comprise several layers which cannot be tested singly as basic insulation
or supplementary insulation.
[SOURCE: IEC 60050-195:1998, 195-06-09]
3.14
standby mode
mode in which the WPT system is ready to transfer energy from supply device to EV device
3.15
active mode
mode in which the WPT system is transferring energy between supply device and EV device
3.16
permanently connected supply device
supply device that is intended for connection to the building installation wiring using screw
terminals or other reliable means
3.17
plug and cable connected supply device
supply device that can be connected to, or disconnected from, the socket-outlet of AC or DC
supply network by the use of a plug
3.18
supply device
off-board component assembly of WPT system
SEE Figure 1.
3.19
EV device
on-board component assembly of WPT system
SEE Figure 1.
– 14 – IEC 61980-1:2020 © IEC 2020
3.20
electric vehicle
EV
electric road vehicle
vehicle propelled by an electric motor drawing current form an RESS, intended primary for use
on public roads
Note 1 to entry: In this document, these terms refer only to those vehicles that can be charged from an external
electric source
[SOURCE: IEC 61851-1:2017, 3.4.1]
3.21
rechargeable energy storage system
RESS
rechargeable system that stores energy for delivery of electric energy for the electric drive
EXAMPLE Batteries, capacitors, flywheel.
[SOURCE: ISO 17409:2020, 3.47]
3.22
plug
accessory having contacts designed to engage with the contacts of a socket-outlet, also
incorporating means for the electrical connection and mechanical retention of flexible cables or
cords
[SOURCE: IEC 61851-1:2017, 3.5.9]
3.23
socket-outlet
accessory having socket-contacts designed to engage with the contacts of a plug and having
terminals for the connection of cable or cords
[SOURCE: IEC 61851-1:2017, 3.5.10]
3.24
standard plug and socket-outlet
plug and socket-outlet which meet the requirements of any IEC and/or any national standard
that provides interchangeability by standard sheets, excluding the specific EV accessories as
defined in the IEC 62196 series
Note 1 to entry: IEC 60309-1, IEC 60309-2, IEC 60884-1 and IEC TR 60083 define standard plugs and socket-
outlets.
[SOURCE: IEC 61851-1:2017, 3.5.11]
3.25
supply network
source of electric energy (e.g. mains or electric grid, distributed energy resources (DER),
battery ban, PV installation, generator, etc.)
[SOURCE: IEC 61851-1:2017, 3.7.1]
3.26
connecting point
terminating point in the fixed installation where energy is transferred to/from one electric vehicle
Note 1 to entry: The connecting point may be part of the fixed installed supply device.

[SOURCE: IEC 60364-7-722:2018, 722.3.2, modified – The example has been deleted and the
note has been rephrased.]
3.27
protective conductor
conductor provided for purpose of safety, for example protection against electric shock
[SOURCE: IEC 60050-826:2004, 826-13-22, modified – The note to entry has been deleted.]
3.28
residual current device
RCD
mechanical switching device designated to make, carry and break currents under normal
service conditions and to cause the opening of the contacts when the residual current attains a
given value under specified conditions
Note 1 to entry: A residual current device can be a combination of various separate elements designed to detect
and evaluate the residual current and to make and break current
[SOURCE: IEC 60050-422:2019, 442-05-02, modified – In the definition, the words "or
association of devices" have been deleted, and the note to entry has been added.]
3.29
circuit-breaker
mechanical switching device, capable of making, carrying and breaking currents under normal
circuit conditions and also making, carrying for a specified duration and breaking currents under
specified abnormal circuit conditions such as those of short circuit
[SOURCE: IEC 60050-441:1984, 441-14-20]
3.30
leakage current
electric current in an unwanted conductive path under normal operating conditions
[SOURCE: IEC 60050-195:1998, 195-05-15]
3.31
touch current
electric current passing through a human body or through an animal body when it touches one
or more accessible parts of an electrical installation or electrical equipment
[SOURCE: IEC 60050-826:2004, 826-11-12]
3.32
comparative tracking index
CTI
numerical value of the maximum voltage in volts which a material can withstand without tracking
and without a persistent flame occurring under specified test conditions
[SOURCE: IEC 60050-212:2010, 212-11-59]
3.33
port
particular interface of the specific apparatus with external electromagnetic environment
[SOURCE: IEC 61851-21-2:2018, 3.2, modified – The note to entry has been deleted.]

– 16 – IEC 61980-1:2020 © IEC 2020
3.34
enclosure port
physical boundary of the apparatus through which electromagnetic fields may radiate or impinge
on
Note 1 to entry: Apparatus includes WPT system with or without a vehicle or a simulated vehicle body.
[SOURCE: IEC 60050-445:2010, 445-07-04, modified – The words "time relay" have been
replaced by "apparatus" and the note to entry has been added.]
3.35
power input port
input port at which a conductor or cable carrying the electrical power needed for the operation
(functioning) of an apparatus or associated apparatus is connected to the apparat
Note 1 to entry: A power input port can be AC or DC.
...