IEC 61980-1:2020

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

IEC 61980-1:2020

Name:IEC 61980-1:2020   Standard name:Electric vehicle wireless power transfer (WPT) systems - Part 1: General requirements
Standard number:IEC 61980-1:2020   language:English and French language
Release Date:18-Nov-2020   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   ICS number:43.120 - Electric road vehicles

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




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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 .
...

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