IEC 61980-1:2015

IEC 61980-1 ®
Edition 1.0 2015-07
INTERNATIONAL
STANDARD
colour
inside
Electric vehicle wireless power transfer (WPT) systems –
Part 1: General requirements
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IEC 61980-1 ®
Edition 1.0 2015-07
INTERNATIONAL
STANDARD
colour
inside
Electric vehicle wireless power transfer (WPT) systems –

Part 1: General requirements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 43.120 ISBN 978-2-8322-2814-2

– 2 – IEC 61980-1:2015 © IEC 2015

CONTENTS
FOREWORD . 7

INTRODUCTION . 9

1 Scope . 10

2 Normative references. 10

3 Terms and definitions . 14

4 Abbreviations . 16

5 General . 17

6 Classification . 17
6.1 General . 17
6.2 Transfer technologies . 17
6.3 Transfer power classes . 18
6.4 Environmental conditions . 18
6.5 Installation . 18
7 Interoperability . 18
8 General system requirements . 19
8.1 General . 19
8.2 Efficiency . 20
8.3 Measurement convention . 21
8.3.1 General . 21
8.3.2 Orientation . 21
8.3.3 Measurement convention of the parking space . 21
8.3.4 Measurement convention of offset . 22
8.3.5 Measurement convention of the primary device . 23
8.3.6 Distance between the primary and secondary device (mechanical air
gap) . 23
8.3.7 Primary device mounting . 24
8.3.8 In-ground-mounting . 24
8.3.9 On-ground-mounting . 24
8.4 Primary and secondary device construction . 25
9 Communication . 25
9.1 Command and control communication. 25
9.2 High level communication . 25

10 Protection against electric shock . 26
10.1 General requirements . 26
10.2 Protection against direct contact . 26
10.2.1 Degrees of protection against access to hazardous parts . 26
10.2.2 IP degrees for the enclosures . 26
10.2.3 IP degrees for primary device . 26
10.3 Stored energy – discharge of capacitors . 26
10.4 Fault protection . 27
10.5 Protective conductor dimensions . 27
10.6 Supplementary measures . 27
10.6.1 Additional protection . 27
10.6.2 Manual/automatic reset . 28
10.7 Telecommunication network . 28
11 Specific requirements for WPT systems . 28

11.1 General . 28

11.2 Leakage – touch current . 28

11.3 Insulation resistance . 29

11.4 Dielectric withstand characteristic . 29

11.4.1 Dielectric withstand voltage . 29

11.4.2 Impulse dielectric withstand (1,2/50 µs) . 29

11.5 Overload protection and short circuit withstand . 30

11.5.1 General . 30

11.5.2 Earthing electrode and continuity test . 30

11.5.3 Earthing path test . 30
11.5.4 Short circuit withstand strength . 30
11.6 Temperature rise and protection against thermal incidents . 30
11.6.1 General . 30
11.6.2 Permissible surface temperature of accessible parts of the WPT system . 31
11.6.3 Temperature limits for materials . 32
11.6.4 Protection against burns from heating of foreign objects . 33
11.7 Heat, fire and tracking . 34
11.8 Protection against mechanical incident . 34
11.8.1 Incidents induced by sharp edge . 34
11.8.2 Incidents induced by steps from flat ground . 34
11.9 Areas of protection . 34
11.10 Protection from electro-magnetic field . 35
11.11 Operational safety . 35
11.12 Emergency service disconnect (optional) . 35
12 Power cable assembly requirements . 35
13 Constructional requirements . 36
13.1 General . 36
13.2 Breaking capacity of switching devices . 36
13.2.1 General . 36
13.2.2 Switch and switch-disconnector . 36
13.2.3 Contactor . 36
13.2.4 Circuit-breaker . 36
13.2.5 Relays . 36
13.3 Clearance and creepage distances . 36
13.4 Protection measures . 37

14 Strength of materials and parts . 37
14.1 General . 37
14.2 Stability/Mechanical impact . 37
14.2.1 Locations with restricted access . 37
14.2.2 Locations with non-restricted access . 38
14.2.3 Vehicle drive-over . 38
14.2.4 Lateral force by thrust power . 38
14.3 Mechanical load . 38
14.3.1 General . 38
14.3.2 Static load . 38
14.3.3 Shock load . 39
14.3.4 Torsional stress . 39
14.3.5 Strength of doors . 39
14.3.6 Mechanical shock impacts induced by sharp edged objects . 39

– 4 – IEC 61980-1:2015 © IEC 2015

14.4 Strength of materials and parts . 39

14.4.1 Protection against corrosion . 39

14.4.2 Test criteria . 39

14.5 Environmental conditions . 40

14.6 Properties of insulating materials . 40

14.6.1 Verification of thermal stability of enclosures . 40

14.6.2 Resistance to fire (Glow wire) . 40

14.6.3 Ball pressure test . 40

14.6.4 Resistance to tracking . 40

14.6.5 Resistance to ultra-violet radiation . 41

14.7 Static strength and stability . 41
14.8 Vibration . 41
15 Service and test conditions . 41
15.1 General . 41
15.2 Environmental test . 41
15.2.1 Ambient air temperature . 41
15.2.2 Ambient humidity . 42
15.2.3 Ambient air pressure . 42
15.2.4 Altitude . 42
15.2.5 Pollution degree . 43
15.2.6 Dry heat . 43
15.2.7 Cold test . 43
15.3 Special service conditions . 43
15.4 Conditions during transport, storage and installation . 43
15.5 Outdoor exposure . 44
15.5.1 Cold test for extreme cold climates . 44
15.5.2 Heat test under solar radiation . 44
15.6 Damp and salt mist test for marine and coastal environments . 44
15.7 Condensation within the assembly . 44
15.8 Vibration and shock . 44
15.9 Safety specifications . 44
16 Electromagnetic Compatibility (EMC) . 44
16.1 Immunity requirements . 44
16.2 Disturbance requirement . 46
16.2.1 Load and operating conditions . 46

16.2.2 Disturbance limits . 47
17 Marking and instructions . 50
17.1 General . 50
17.2 Marking of EV supply equipment . 51
17.3 Legibility . 51
17.4 Connection instructions . 51
Annex A (informative) Use cases . 52
A.1 General . 52
A.2 Use case descriptions . 53
A.2.1 UC Select "charging spot" . 53
A.2.2 UC Compatibility Check . 54
A.2.3 UC Fine Positioning . 55
A.2.4 UC Pairing Confirmation . 56

A.2.5 UC Start Power Transfer . 57

A.2.6 UC Perform Power Transfer . 59

A.2.7 UC Safety Monitoring and Diagnostics (see Table A.7) . 61

A.2.8 UC Stop Power transfer. 61

Annex B (informative) EMC tables, EV connected to an WPT system . 63

B.1 General . 63

B.2 WPT equipment immunity requirement (informative) . 63

B.3 Radio frequency (RF) disturbances . 63

B.4 WPT system with EV included (radiated disturbances in the range 30 MHz to

1 000 MHz) . 64

Annex C (informative) EMF, protection from electromagnetic field . 66
C.1 Protection from electromagnetic field . 66
C.2 Assessment of electronic and electrical equipment . 66
C.3 EMF measurement procedure . 66
C.4 Measurement points . 68
C.4.1 Area 3 measurement points of nominal position . 68
C.4.2 Area 3 measurement points of offset positions . 69
C.4.3 Area 4 measurement points . 69
Bibliography . 70

Figure 1 – Installation . 18
Figure 2 – Wireless Power Transfer system . 20
Figure 3 – Position of axes relative to orientation. 21
Figure 4 – Position of the primary device . 22
Figure 5 – X and Y maximum offset . 23
Figure 6 – In-ground-mounting . 24
Figure 7 – On-ground-mounting . 25
Figure 8 – Qualitative example of material temperature . 31
Figure 9 – Example for areas of protection, for ground mounted systems . 35
Figure A.1 – Use cases particularly for wireless power transfer . 52
Figure A.2 – Use cases from ISO/IEC 15118-1 reusable for WPT systems . 53
Figure A.3 – Activity diagram for UC Select "Charging Spot" . 54
Figure A.4 – Activity diagram for UC Compatibility Check . 55

Figure A.5 – Activity diagram for UC Fine Positioning . 56
Figure A.6 – Activity diagram fur UC Pairing Confirmation . 57
Figure A.7 – Activity diagram for UC Start Power Transfer . 59
Figure A.8 – Activity diagram for UC Perform Power Transfer . 60
Figure A.9 – Activity diagram for UC Stop Power Transfer . 62
Figure B.1 – EV model for the radiated emission measurement (top view) . 64
Figure B.2 – EV model for radiated emission measurements (side view) . 65
Figure C.1 – Top view . 68
Figure C.2 – Front view . 68
Figure C.3 – Seats position . 69
Figure C.4 – Measurement points of seats . 69

– 6 – IEC 61980-1:2015 © IEC 2015

Table 1 – Transfer technologies . 17

Table 2 – Position of primary device . 22

Table 3 – Offset . 23

Table 4 – Primary device . 23

Table 5 – Mechanical air gap . 24

Table 6 – Touch currents . 28

Table 7 – Values of temperature rise in normal use . 33

Table 8 – WPT equipment immunity requirement – Environment other than residential . 45

Table 9 – WPT equipment immunity requirement – residential environment . 46
Table 10 – Low frequency disturbances . 48
Table 11 – Radio frequency (RF) disturbances . 49
Table 12 – Limits of the magnetic field strength for WPT system . 50
Table A.1 – UC Select "charging spot" . 53
Table A.2 – UC Compatibility Check . 55
Table A.3 – UC Fine Positioning . 56
Table A.4 – UC Pairing Confirmation . 57
Table A.5 – UC Start Power Transfer . 58
Table A.6 – UC Perform Power Transfer . 60
Table A.7 – UC Safety Monitoring and Diagnostics . 61
Table A.8 – UC Stop Power transfer . 61
Table B.1 – Environment other than residential environment with EV . 63
Table B.2 – Residential environment with EV . 63
Table B.3 – Radio frequency (RF) disturbances – WPT system with EV . 63

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
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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6) All users should ensure that they have the latest edition of this publication.
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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 Technical Committee 69: Electric
road vehicles and electric industrial trucks.
The text of this standard is based on the following documents:
FDIS Report on voting
69/370/FDIS 69/380/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 8 – IEC 61980-1:2015 © IEC 2015

This part is to be used in conjunction with the appropriate part of IEC 61980 series.

NOTE The following print types are used:

– requirements: in roman type;

– test specifications: in italic type;

– notes: in small roman type.
The committee has decided that the contents of this publication will remain unchanged until

the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data

related to the specific publication. At this date, the publication will be

• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.
The contents of the corrigendum of January 2017 have been included in this copy.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
INTRODUCTION
The IEC 61980 series is published in separate parts according to the following structure:

Part 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).
Future Part 2 will cover specific requirements for communication between electric road vehicle

(EV) and wireless power transfer (WPT) systems including general background and

definitions.
Future Part 3 will cover specific requirements for electric road vehicle (EV) magnetic field
wireless power transfer (MF-WPT) systems including general background and definitions (e.g.
efficiency, electrical safety, EMC, EMF).
The requirements described in Part 1 are general. The technical requirements for the various
wireless power transfer (WPT) technologies are very different, they will be treated in
technology specific parts of the 61980 series. A list of possible WPT technologies can be
seen in 6.2. The requirements for magnetic field-wireless power transfer systems (MF-WPT)
will be described in future Part 3. Further parts of this series will describe other technologies
such as power transfer via electric field wireless power transfer systems (EF-WPT) or
electromagnetic field-WPT systems also named microwave-WPT systems (MW-WPT).
Reference to "technology specific parts" always refer to the technology specific future Part 3
and further technology specific parts of this series. The structure of the "technology specific
parts" will follow the structure of Part 1.
Electric road vehicle (EV) will be covered by ISO 19363 .

___________
Under consideration.
– 10 – IEC 61980-1:2015 © IEC 2015

ELECTRIC VEHICLE WIRELESS
POWER TRANSFER (WPT) SYSTEMS –

Part 1: General requirements
1 Scope
This part of IEC 61980 applies to the equipment for the wireless transfer of electric power
from the supply network to electric road vehicles for purposes of supplying electric energy to
the RESS (Rechargeable energy storage system) and/or other on-board electrical systems in
an operational state when connected to the supply network, at standard supply voltages
ratings per IEC 60038 up to 1 000 V a.c. and up to 1 500 V d.c.
This standard also applies to Wireless Power Transfer (WPT) equipment supplied from on-site
storage systems (e.g. buffer batteries, etc.).
The aspects covered in this standard include:
– the characteristics and operating conditions;
– the specification for required level of electrical safety;
– requirements for basic communication for safety and process matters if required by a WPT
system;
– requirements for basic positioning, efficiency and process matters if required by a WPT
system;
– requirements for two- and three-wheel vehicles (under consideration);
– requirements for WPT system while driving (under consideration);
– requirements for bidirectional power transfer (under consideration);
– specific EMC requirements for WPT systems.
This standard does not apply to:
– safety aspects related to maintenance;
– trolley buses, rail vehicles and vehicles designed primarily for use off-road;
– WPT vehicle power supply circuit, which is covered by ISO 6469 series, ISO 19363 ;
– EMC requirements for on-board equipment while connected, which are covered in

IEC 61851-21-1 ;
– high level communication which are covered in ISO/IEC 15118 series.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. 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
___________
Under consideration.
Under consideration.
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 Sa: Simulated solar radiation at

ground level and guidance for solar radiation testing

IEC 60068-2-11, Environmental testing – Part 2-11: Tests – Test Ka: Salt mist

IEC 60068-2-30, Environmental testing – Part 2-30: Tests – Test Db and guidance: Damp

heat, cyclic (12 + 12-hour cycle)

IEC 60085, Electrical insulation – Thermal evaluation and designation
IEC 60112, Method for the determination of the proof and the comparative tracking indices of
solid insulating materials
IEC 60216 (all parts), Electrical insulating materials – Thermal endurance properties
IEC 60364-4-41:2005, Low-voltage electrical installations – Part 4-41: Protection for safety –
Protection against electric shock
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 60364-4-44, Low-voltage electrical installations – Part 4-44: Protection for safety –
Protection against voltage disturbances and electromagnetic disturbances
IEC 60364-5-54, Low-voltage electrical installations – Part 5-54: Selection and erection of
electrical equipment – Earthing arrangements and protective conductors
, Low-voltage electrical installations – Part 7-722: Requirements for special
IEC 60364-7-722
installations or locations – Supply of electric vehicles
IEC 60529, Degrees of protection provided by enclosures (IP Code)

IEC 60664-1:2007, 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 60695-10-2, Fire hazard testing – Part 10-2: Abnormal heat – Ball pressure test method
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
___________
To be published.
– 12 – IEC 61980-1:2015 © IEC 2015

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 60950-1:2005, Information technology equipment – Safety – Part 1: General requirements

Amendment 1:2009
Amendment 2:2013
IEC 60990:1999, 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
61000-4-11, Electromagnetic compatibility (EMC) – Part 4-11: Testing and measurement
techniques – Voltage dips, short interruptions and voltage variations immunity tests
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
IEC 61000-6-1, Electromagnetic compatibility (EMC) – Part 6-1: Generic standards –
Immunity for residential, commercial and light-industrial environments

IEC 61000-6-2, Electromagnetic compatibility (EMC) – Part 6-2: Generic standards –

Immunity for industrial environments

IEC 61008-1, Residual current operated circuit-breakers without integral overcurrent

protection 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 61140, Protection against electric shock – Common aspects for installation and

equipment
IEC 61180-1, High-voltage test techniques for low-voltage equipment – Part 1: definitions, test
and procedure requirements
IEC 61439-1:2011, Low-voltage switchgear and controlgear assemblies – Part 1: General
rules
IEC 61439-5:2014, Low-voltage switchgear and controlgear assemblies – Part 5: Assemblies
for power distribution in public networks
IEC 61810-1, Electromechanical elementary relays – Part 1: General and safety requirements
IEC 61851-1, Electric vehicle conductive charging system – Part 1: General requirements
IEC 61851-21-1 , Electric vehicle conductive charging system – Part 21-1: Electric vehicle
onboard charger EMC requirements for conductive connection to a.c./d.c. supply
IEC 61851-21-2 , Electric vehicle conductive charging system – Part 21-2: EMC requirements
for OFF board electric vehicle charging systems
IEC 61980-2 , Electric vehic
...