ISO 5474-3:2024
(Main)Electrically propelled road vehicles — Functional and safety requirements for power transfer between vehicle and external electric circuit — Part 3: DC power transfer
Electrically propelled road vehicles — Functional and safety requirements for power transfer between vehicle and external electric circuit — Part 3: DC power transfer
This document in combination with ISO 5474-1 specifies requirements for conductive power transfer using direct current (DC) with a voltage up to 1 500 V d.c. between electrically propelled road vehicles and external electric circuits. This document provides requirements for conductive charging in mode 4 according to IEC 61851-1. For mode 4, this document provides requirements regarding the power transfer only with isolated DC EV supply equipment according to IEC 61851-23. The requirements in this document are applicable to vehicle power supply circuits. An outlook of requirements for megawatt charging applications is given in Annex B. This document does not provide: — requirements for simultaneous operation of multiple power transfer interfaces and — requirements for power transfer while driving (electric road systems) but they are under consideration. This document does not provide: — requirements for mopeds and motorcycles (which are specified in ISO 18246); — comprehensive safety information for manufacturing, maintenance and repair personnel.
Véhicules routiers à propulsion électrique — Exigences fonctionnelles et exigences de sécurité pour le transfert de puissance entre le véhicule et le circuit électrique externe — Partie 3: Transfert de puissance DC
General Information
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Standards Content (Sample)
International
Standard
ISO 5474-3
First edition
Electrically propelled road
2024-06
vehicles — Functional and safety
requirements for power transfer
between vehicle and external
electric circuit —
Part 3:
DC power transfer
Véhicules routiers à propulsion électrique — Exigences
fonctionnelles et exigences de sécurité pour le transfert de
puissance entre le véhicule et le circuit électrique externe —
Partie 3: Transfert de puissance DC
Reference number
ISO 5474-3:2024(en) © ISO 2024
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ISO 5474-3:2024(en)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
© ISO 2024 – All rights reserved
ii
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ISO 5474-3:2024(en)
Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 System architecture . 3
5 Environmental and operational conditions . 3
6 Safety requirements. 3
6.1 General .3
6.2 Protection of persons against electric shock .4
6.2.1 General .4
6.2.2 Compatibility with external safety devices .4
6.2.3 Insulation resistance .5
6.2.4 Touch current .5
6.2.5 Insulation coordination.6
6.2.6 Protective conductor .6
6.2.7 Basic protection when connected to an external electric circuit .7
6.2.8 Requirements for unmated vehicle contacts .7
6.2.9 Withstand capability during insulation resistance check before charging .7
6.2.10 Monitoring continuity of protective conductor .
...
FINAL DRAFT
International
Standard
ISO/FDIS 5474-3
ISO/TC 22/SC 37
Electrically propelled road
Secretariat: DIN
vehicles — Functional and safety
Voting begins on:
requirements for power transfer
2024-01-03
between vehicle and external
Voting terminates on:
electric circuit —
2024-02-28
Part 3:
DC power transfer
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO/FDIS 5474-3:2024(en) © ISO 2024
---------------------- Page: 1 ----------------------
FINAL DRAFT
ISO/FDIS 5474-3:2024(en)
International
Standard
ISO/FDIS 5474-3
ISO/TC 22/SC 37
Electrically propelled road
Secretariat: DIN
vehicles — Functional and safety
Voting begins on:
requirements for power transfer
between vehicle and external
Voting terminates on:
electric circuit —
Part 3:
DC power transfer
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
COPYRIGHT PROTECTED DOCUMENT
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
© ISO 2024
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland Reference number
ISO/FDIS 5474-3:2023(en) © ISO 2023
© ISO 2024 – All rights reserved
ii
---------------------- Page: 2 ----------------------
ISO/FDIS 5474-3:2023(en)
Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 System architecture . 3
5 Environmental and operational conditions . 3
6 General safety requirements . 3
6.1 General .3
6.2 Protection of persons against electric shock .4
6.2.1 General .4
6.2.2 Compatibility with external safety devices .4
6.2.3 Insulation resistance .
...
© ISO 2023 – All rights reserved
ISO/FDIS 5474-3:2023(E)
ISO/TC 22/SC 37/WG 5
Secretariat: DIN
Date: 2023-07-2712-19
Electrically propelled road vehicles — Functional and safety
requirements for power transfer between vehicle and external
electric circuit — —
Part 3:
DC power transfer
FDIS stage
---------------------- Page: 1 ----------------------
ISO/FDIS 5474-3:2023(E)
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this
publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical,
including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can
be requested from either ISO at the address below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
EmailE-mail: copyright@iso.org
Website: www.iso.org
Published in Switzerland
© ISO 2023 – All rights reserved
ii
---------------------- Page: 2 ----------------------
ISO/FDIS 5474-3:2023(E)
Contents
Foreword . v
Part 3: DC power transfer . 1
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 System architecture . 3
5 Environmental and operational conditions . 4
6 General safety requirements . 4
6.1 General . 4
6.2 Protection of persons against electric shock . 4
6.2.1 General . 4
6.2.2 Compatibility with external safety devices . 4
6.2.3 Insulation resistance . 6
6.2.4 Touch current . 6
6.2.5 Insulation coordination . 7
6.2.6 Protective conductor . 8
6.2.7 Basic protection when connected to an external electric circuit . 8
6.2.8 Requirements for unmated vehicle contacts . 8
6.2.9 Withstand capability during insulation resistance check before charging . 8
6.2.10 Monitoring continuity of protective conductor . 8
6.2.11 Insulation resistance monitoring system . 9
6.3 Protection against thermal incident . 9
6.3.1 Requirements for normal operation .
...
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