SIST EN ISO 18246:2023

Electrically propelled mopeds and motorcycles - Safety requirements for conductive connection to an external electric power supply (ISO 18246:2023)

This document specifies safety requirements for conductive connection of electrically propelled mopeds and motorcycles (referred to as the EVs) to external electric circuits.
NOTE 1   External electric circuits include external electric power supplies and external electric loads.
It does not provide comprehensive safety information for manufacturing, maintenance and repair personnel.
It applies only to on-board charging systems between the plug or vehicle inlet and RESS circuits.
NOTE 2   The requirements when not connected to external electric circuits are specified in the ISO 13063 series.
Requirements for bidirectional energy transfer DC to AC are under consideration and are not part of this document.
NOTE 3   The safety requirements for DC EV supply equipment where protection relies on electrical separation are specified in IEC 61851-25.
NOTE 4   The safety requirements for DC EV supply equipment where protection relies on double or reinforced insulation are specified in IEC TS 61851-3-1 and IEC TS 61851-3-2.

Elektrisch angetriebene Mopeds und Motorräder - Sicherheitsanforderungen für die leitende Verbindung mit einer externen Energieversorgung (ISO 18246:2023)

Dieses Dokument legt Sicherheitsanforderungen für die leitende Verbindung von elektrisch angetriebenen Mopeds und Motorrädern (im weiteren Verlauf „Elektrofahrzeuge“ genannt) an externe Stromkreise fest.
ANMERKUNG 1   Externe Stromkreise umfassen externe elektrische Versorgungssysteme und externe elektrische Lasten.
Es beschreibt keine umfassenden Sicherheitsinformationen für Herstellungs-, Wartungs- und Reparaturpersonal.
Es gilt nur für Bordladegeräte im Stromkreis zwischen dem Stecker oder der Fahrzeugsteckvorrichtung und dem RESS.
ANMERKUNG 2   Die Anforderungen an Fahrzeuge, die nicht an einen externen Stromkreis angeschlossen sind, werden in ISO 13063 (alle Teile) festgelegt.
Anforderungen an die bidirektionale Energieübertragung von Gleichstrom zu Wechselstrom sind noch in der Entwicklung und sind nicht Teil dieser Ausgabe.
ANMERKUNG 3   Die Sicherheitsanforderungen für DC-EV-Ladeeinrichtungen, bei denen der Schutz auf der elektrischen Trennung basiert, sind in IEC 61851 25 festgelegt.
[ANMERKUNG 4   Die Sicherheitsanforderungen für DC-EV-Ladeeinrichtungen, bei denen der Schutz auf einer doppelten oder verstärkten Isolierung basiert, sind in IEC/TS 61851 3 1 und IEC/TS 61851 3 2 festgelegt.]

Cyclomoteurs et motocycles à propulsion électrique - Exigences de sécurité relatives au couplage conductif à une station extérieure d'alimentation d'énergie externe (ISO 18246:2023)

Le présent document spécifie les exigences de sécurité relatives au couplage conductif des cyclomoteurs et motocycles à propulsion électrique (dénommés VEs) aux circuits électriques externes.
NOTE 1      Les circuits électriques externes comprennent les bornes d’alimentation électrique externes et les charges électriques externes.
Il ne fournit pas d'informations de sécurité complètes pour le personnel de fabrication, de maintenance et de réparation.
Il s'applique uniquement aux systèmes de charge embarqués entre la prise ou l'entrée du véhicule et les circuits RESS.
NOTE 2      Si non connexion à des circuits électriques externes, les exigences sont spécifiées dans la série ISO 13063.
Les exigences relatives au transfert bidirectionnel d'énergie de courant continu en courant alternatif sont à l'étude et ne sont pas couverts par le présent document.
NOTE 3      Les exigences de sécurité pour les équipements d'alimentation des VE en courant continu où la protection repose sur la séparation électrique, sont spécifiées dans l’IEC 61851‑25.
NOTE 4      Les exigences de sécurité pour les équipements d'alimentation des VE en courant continu où la protection repose sur une isolation double ou renforcée sont spécifiées dans l’IEC/TS 61851‑3‑1 et l’IEC/TS 61851‑3‑2.

Mopedi in motorna kolesa na električni pogon - Varnostne zahteve za prevodno (kabelsko) priključitev na zunanje električno napajanje (ISO 18246:2023)

Ta dokument določa varnostne zahteve za prevodno (kabelsko) priključitev mopedov in motornih koles na električni pogon (imenovanih električna vozila) na zunanje električne tokokroge.
OPOMBA 1: Zunanji električni tokokrogi vključujejo zunanje električno napajanje in zunanje električne obremenitve.
Ne zagotavlja celovitih varnostnih informacij za proizvodno, vzdrževalno in servisno osebje.
Uporablja se samo za polnilne sisteme v vozilu med vtičem ali vtičnico na vozilu ter vezji RESS.
OPOMBA 2: Zahteve za vozila, ki niso priključena na zunanje električne tokokroge, so podane v standardu ISO 13063.
Zahteve za dvosmerni prenos energije iz enosmernega na izmenični tok so v fazi preučevanja in niso del tega dokumenta.
OPOMBA 3: Varnostne zahteve za opremo za enosmerno napajanje električnih vozil, kjer zaščita temelji na električni ločitvi, so podane v standardu IEC 61851-25.
OPOMBA 4: Varnostne zahteve za opremo za napajanje električnih vozil z enosmernim tokom, kjer zaščita temelji na dvojni ali okrepljeni izolaciji, so podane v standardu IEC TS 61851-3-1 in standardu IEC TS 61851-3-2.

General Information

• Status: Published
• Public Enquiry End Date: 02-May-2022
• Publication Date: 24-Apr-2023
• ICS: 43.140 - Motorcycles and mopeds
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 13-Apr-2023
• Due Date: 18-Jun-2023
• Completion Date: 25-Apr-2023
• Directive: 2014/94/EU - Directive 2014/94/EU of The European Parliament and of The Council of 22 October 2014 on the deployment of alternative fuels infrastructure
• Mandate: M/533 - [C(2015)1330] Standardisation request addressed to CEN, CENELEC and ETSI in support of the implementation of the Directive 2014/94/EU on the deployment of alternative fuels infrastructure
• Ref Project: EN ISO 18246:2023 - Electrically propelled mopeds and motorcycles - Safety requirements for conductive connection to an external electric power supply (ISO 18246:2023)

Relations

• Revised: SIST EN ISO 18246:2017 - Electrically propelled mopeds and motorcycles - Safety requirements for conductive connection to an external electric power supply (ISO 18246:2015)
• Effective Date: 19-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 18246:2023
01-junij-2023
Mopedi in motorna kolesa na električni pogon - Varnostne zahteve za prevodno
(kabelsko) priključitev na zunanje električno napajanje (ISO 18246:2023)
Electrically propelled mopeds and motorcycles - Safety requirements for conductive
connection to an external electric power supply (ISO 18246:2023)
Elektrisch angetriebene Mopeds und Motorräder - Sicherheitsanforderungen für die
leitende Verbindung mit einer externen Energieversorgung (ISO 18246:2023)
Cyclomoteurs et motocycles à propulsion électrique - Exigences de sécurité relatives au
couplage conductif à une station extérieure d'alimentation d'énergie externe (ISO
18246:2023)
Ta slovenski standard je istoveten z: EN ISO 18246:2023
ICS:
43.140 Motorna kolesa in mopedi Motorcycles and mopeds
SIST EN ISO 18246:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 18246:2023

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SIST EN ISO 18246:2023


EN ISO 18246
EUROPEAN STANDARD

NORME EUROPÉENNE

April 2023
EUROPÄISCHE NORM
ICS 43.140 Supersedes EN ISO 18246:2017
English Version

Electrically propelled mopeds and motorcycles - Safety
requirements for conductive connection to an external
electric power supply (ISO 18246:2023)
Cyclomoteurs et motocycles à propulsion électrique - Elektrisch angetriebene Mopeds und Motorräder -
Exigences de sécurité relatives au couplage conductif à Sicherheitsanforderungen für die leitende Verbindung
une station extérieure d'alimentation d'énergie externe mit einer externen Energieversorgung (ISO
(ISO 18246:2023) 18246:2023)
This European Standard was approved by CEN on 24 March 2023.

CEN 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 CEN
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 CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 18246:2023 E
worldwide for CEN national Members.

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SIST EN ISO 18246:2023
EN ISO 18246:2023 (E)
Contents Page
European foreword . 3

2

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SIST EN ISO 18246:2023
EN ISO 18246:2023 (E)
European foreword
This document (EN ISO 18246:2023) has been prepared by Technical Committee ISO/TC 22 "Road
vehicles" in collaboration with Technical Committee CEN/TC 301 “Road vehicles” the secretariat of
which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by October 2023, and conflicting national standards shall
be withdrawn at the latest by October 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 18246:2017.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 18246:2023 has been approved by CEN as EN ISO 18246:2023 without any modification.

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SIST EN ISO 18246:2023

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SIST EN ISO 18246:2023
INTERNATIONAL ISO
STANDARD 18246
Second edition
2023-01
Electrically propelled mopeds and
motorcycles — Safety requirements
for conductive connection to an
external electric power supply
Cyclomoteurs et motocycles à propulsion électrique — Exigences de
sécurité relatives au couplage conductif à une borne d'alimentation
électrique externe
Reference number
ISO 18246:2023(E)
© ISO 2023

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SIST EN ISO 18246:2023
ISO 18246:2023(E)
COPYRIGHT PROTECTED DOCUMENT
© 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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
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  © ISO 2023 – All rights reserved

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SIST EN ISO 18246:2023
ISO 18246:2023(E)
Contents Page
Foreword .v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
3.1 General . 2
3.2 Charging . 4
3.3 Connection . 5
3.4 Electrical safety . 6
4 Environmental and operational conditions . 9
5 General requirements .10
6 Connection between the plug or vehicle couplers and RESS of the vehicle .10
6.1 General . 10
6.1.1 Connections among charger, RESS, and vehicle. 10
6.1.2 General requirements for connection .12
6.1.3 Requirements for connection or no connection to the earth .12
6.1.4 Specific requirements for the vehicle inlet . 18
6.1.5 Vehicle behaviour during charging . 19
6.2 AC connection . 19
6.2.1 Requirements for the connection to AC supply network (mains). 19
6.2.2 Requirements of connection and/or disconnection process in AC contacts. 19
6.2.3 Protection from unintended voltage for AC connection . 19
6.2.4 Additional requirements for AC electric power supply .20
6.3 DC connection . . 20
6.3.1 Requirements of connection and/or disconnection process in DC contacts .20
6.3.2 Protection from unintended voltage for DC connection .20
6.3.3 Specific requirements .20
7 Protection against electric shock .21
7.1 General requirements . 21
7.1.1 General requirements for connected sections of a circuit . 21
7.1.2 General requirements for voltage class A . 21
7.1.3 General requirements for voltage class B . 21
7.2 Basic protection . 21
7.3 Fault protection and additional measures . 21
7.3.1 Equipotential bonding . 21
7.3.2 Alternative protection measures . 22
7.3.3 Requirements for protective barrier or enclosures .22
7.3.4 Requirements for insulation . 23
7.4 Protection against access to hazardous-live-parts . 23
7.4.1 General .23
7.4.2 Requirements of the degree of protection of barrier/enclosures against
electric shock . 23
7.5 Insulation coordination . 23
7.5.1 AC connection . 23
7.5.2 DC connection . 24
7.6 Touch current. 24
8 Protection against thermal incident .24
8.1 Overcurrent protection . 24
8.1.1 Overload protection. 24
8.1.2 Short circuit protection for AC connection . 24
8.1.3 Short-circuit protection for DC connection . 25
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SIST EN ISO 18246:2023
ISO 18246:2023(E)
8.2 Arc protection for DC connections . 25
8.3 Residual energy after disconnection . 25
9 Additional requirements and test procedure .25
9.1 General conditions on tests .25
9.2 Protection against ingress of solid foreign objects and water . 26
9.3 Withstand voltage test .26
9.3.1 General . 26
9.3.2 Test voltage. 26
9.3.3 Dielectric withstand voltage of voltage class A direct current part . 27
9.4 Isolation resistance . 27
9.4.1 General . 27
9.4.2 Additional measures at a non-maintained isolation resistance . 27
9.5 Creepage distance and clearance . 27
9.6 Requirements for the emission of hazardous gases and other hazardous substances . 27
9.7 Permissible surface temperature .28
9.8 Unintentional charging system behaviour .28
9.8.1 General .28
9.8.2 Unintended reverse power flow .28
9.9 Electromagnetic compatibility.28
9.9.1 Susceptibility .28
9.9.2 Emissions .28
9.10 Service .28
10 Marking, instructions, and indications .28
10.1 Marking .28
10.2 Legibility .29
10.3 Connection instructions. 29
10.4 Indication. 29
Annex A (informative) Charging types .30
Annex B (normative) EV connected to DC EV supply equipment according to IEC 61851-25 .34
Annex C (normative) Connection of an EV to a DRI EV supply equipment according to the
IEC TS 61851-3 series.36
Bibliography .37
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SIST EN ISO 18246:2023
ISO 18246:2023(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 38,
Motorcycles and mopeds, in collaboration with the European Committee for Standardization (CEN)
Technical Committee CEN/TC 301, Electrically propelled road vehicles, in accordance with the Agreement
on technical cooperation between ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 18246:2015), which has been technically
revised.
The main changes are as follows:
— terms and definitions have been updated;
— requirements for protection against electric shock (Clause 7) have been rewritten;
— descriptions for additional requirements and test procedure (Clause 9) have been simplified;
— requirements for the specific DC charging systems have been described in the Annexes (Annex B for
IEC 61851-25 and Annex C for IEC TS 61851-3 series).
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
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SIST EN ISO 18246:2023
ISO 18246:2023(E)
Introduction
This document prescribes basic safety requirements for electrically propelled mopeds and motorcycles,
which are called electrically propelled vehicles (EVs), for simplicity, while connected to an external
electric power supply. The safety requirements for off-board appliances/equipment are not described
1)
in this document.
This document does not standardize specific charging method in the body text. The requirements for
specific DC charging systems are described in Annex B and Annex C.
Moped and motorcycle are defined in ISO 3833:1977, 3.4 and 3.5.
1) See IEC 60335-2-29, IEC 61851-25, and IEC TS 61851-3 series.
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SIST EN ISO 18246:2023
INTERNATIONAL STANDARD ISO 18246:2023(E)
Electrically propelled mopeds and motorcycles — Safety
requirements for conductive connection to an external
electric power supply
1 Scope
This document specifies safety requirements for conductive connection of electrically propelled
mopeds and motorcycles (referred to as the EVs) to external electric circuits.
NOTE 1 External electric circuits include external electric power supplies and external electric loads.
It does not provide comprehensive safety information for manufacturing, maintenance and repair
personnel.
It applies only to on-board charging systems between the plug or vehicle inlet and RESS circuits.
NOTE 2 The requirements when not connected to external electric circuits are specified in the ISO 13063
series.
Requirements for bidirectional energy transfer DC to AC are under consideration and are not part of
this document.
NOTE 3 The safety requirements for DC EV supply equipment where protection relies on electrical separation
are specified in IEC 61851-25.
NOTE 4 The safety requirements for DC EV supply equipment where protection relies on double or reinforced
insulation are specified in IEC TS 61851-3-1 and IEC TS 61851-3-2.
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.
ISO 6469-3:2021, Electrically propelled road vehicles — Safety specifications — Part 3: Electrical safety
ISO 7010, Graphical symbols — Safety colours and safety signs — Registered safety signs
ISO 13063-3:2022, Electrically propelled mopeds and motorcycles — Safety specifications — Part 3:
Electrical safety
ISO 17409:2020, Electrically propelled road vehicles — Conductive power transfer — Safety requirements
ISO 20653, Road vehicles — Degrees of protection (IP code) — Protection of electrical equipment against
foreign objects, water and access
IEC 60664 SER, Insulation coordination for equipment within low-voltage systems — All Parts
IEC 61140:2016, Protection against electric shock — Common aspects for installation and equipment
IEC 61851-1:2017, Electric vehicle conductive charging system — Part 1: General requirements
IEC 61851-23, Electric vehicle conductive charging system — Part 23: DC electric vehicle charging station
IEC 61851-25:2020, Electric vehicle conductive charging system — Part 25: DC EV supply equipment where
protection relies on electrical separation
1
© ISO 2023 – All rights reserved

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SIST EN ISO 18246:2023
ISO 18246:2023(E)
2)
IEC/TS 61851-3-1:—, Electric Vehicles conductive charging system — Part 3-1: DC EV supply equipment
where protection relies on double or reinforced insulation – General rules and requirements for stationary
equipment
IEC 62196-2, Plugs, socket-outlets, vehicle connectors and vehicle inlets — Conductive charging of electric
vehicles — Part 2: Dimensional compatibility and interchangeability requirements for a.c. pin and contact-
tube accessories
IEC/TS 62196-4, Plugs, socket-outlets, vehicle connectors and vehicle inlets — Conductive charging of
electric vehicles — Part 4: Dimensional compatibility and interchangeability requirements for d.c. pin and
contact-tube accessories for class II or class III applications
IEC 62196-6, Plugs, socket-outlets, vehicle connectors and vehicle inlets — Conductive charging of electric
vehicles — Part 6: Dimensional compatibility requirements for DC pin and contact-tube vehicle couplers for
DC EV supply equipment where protection relies on electrical separation
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1 General
3.1.1
electrically propelled vehicle
EV
vehicle with one or more electric drive(s) for vehicle propulsion
Note 1 to entry: In the context of this document, the term electrically propelled vehicle (EV) includes only moped
or motorcycle.
[SOURCE: ISO 13063-3:2022, 3.14, modified — Terminological entry "EV" and note 1 to entry are added.]
3.1.2
rechargeable energy storage system
RESS
rechargeable system that stores energy for delivery of electric energy for the electric drive
EXAMPLE Battery, capacitor, flywheel.
[SOURCE: ISO 13063-3:2022, 3.23]
3.1.3
removable RESS
RESS (3.1.2) that can be moved/removed from an EV (3.1.1) by hand (portable RESS) or with
...

SLOVENSKI STANDARD
oSIST prEN ISO 18246:2022
01-april-2022
Mopedi in motorna kolesa na električni pogon - Varnostne zahteve za prevodno
(kabelsko) priključitev na zunanje električno napajanje (ISO/DIS 18246:2022)
Electrically propelled mopeds and motorcycles - Safety requirements for conductive
connection to an external electric power supply (ISO/DIS 18246:2022)
Elektrisch angetriebene Mopeds und Motorräder - Sicherheitsanforderungen für die
leitende Verbindung mit einer externen Energieversorgung (ISO/DIS 18246:2022)
Cyclomoteurs et motocycles à propulsion électrique - Exigences de sécurité relatives au
couplage conductif à une station extérieure d'alimentation d'énergie (ISO/DIS
18246:2022)
Ta slovenski standard je istoveten z: prEN ISO 18246
ICS:
43.140 Motorna kolesa in mopedi Motorcycles and mopeds
oSIST prEN ISO 18246:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 18246:2022

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oSIST prEN ISO 18246:2022
DRAFT INTERNATIONAL STANDARD
ISO/DIS 18246
ISO/TC 22/SC 38 Secretariat: UNI
Voting begins on: Voting terminates on:
2022-02-09 2022-05-04
Electrically propelled mopeds and motorcycles — Safety
requirements for conductive connection to an external
electric power supply
Cyclomoteurs et motocycles à propulsion électrique — Exigences de sécurité relatives au couplage
conductif à une station extérieure d'alimentation d'énergie
ICS: 43.140
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 18246:2022(E)
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 SUPPORTING DOCUMENTATION. © ISO 2022

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oSIST prEN ISO 18246:2022
ISO/DIS 18246:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
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oSIST prEN ISO 18246:2022
ISO/DIS 18246:2022(E)
Contents Page
Foreword .v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
3.1 General . 2
3.2 Charging . 4
3.3 Connection . 5
3.4 Electrical safety . 7
4 Environmental and operational conditions .10
5 General requirements .10
6 Connection between the plug or vehicle couplers and RESS of the vehicle .11
6.1 General . 11
6.1.1 Connections among charger, RESS, and vehicle. 11
6.1.2 General requirements for connection .12
6.1.3 Requirements for connection or no connection to the earth .13
6.1.4 Specific requirements for the vehicle inlet . 19
6.1.5 Vehicle behaviour during charging . 20
6.2 A.C. connection . 20
6.2.1 Requirements for the connection to AC supply network (mains).20
6.2.2 Requirements of connection and/or disconnection process in AC contacts.20
6.2.3 Protection from unintended voltage for AC connection . 20
6.2.4 Additional requirements for AC electric power supply . 21
6.3 D.C. connection . 21
6.3.1 Requirements of connection and/or disconnection process in DC contacts . 21
6.3.2 Protection from unintended voltage for DC connection . 21
6.3.3 Specific requirements . 21
7 Protection against electric shock .22
7.1 General requirements .22
7.1.1 General requirements for connected sections of a circuit .22
7.1.2 General requirements for voltage class A . 22
7.1.3 General requirements for voltage class B . 22
7.2 Basic protection . 22
7.3 Fault protection and additional measures . 22
7.3.1 Equipotential bonding .22
7.3.2 Alternative protection measures . 23
7.3.3 Requirement for protective barrier or enclosures . 23
7.3.4 Requirements for insulation . 24
7.4 Protection against access to hazardous-liveparts . 24
7.4.1 General . 24
7.4.2 Requirements of the protection degree of barrier/enclosures against
electric shock . 24
7.5 Insulation coordination . 24
7.5.1 A.C. connection . 24
7.5.2 D.C. connection . . . 25
7.6 Touch current. 25
8 Protection against thermal incident .25
8.1 Overcurrent protection .25
8.1.1 Overload protection. 25
8.1.2 Short circuit protection for AC connection . 25
8.1.3 Short-circuit protection for DC connection . 26
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oSIST prEN ISO 18246:2022
ISO/DIS 18246:2022(E)
8.2 Arc protection for DC connections . 26
8.3 Residual energy after disconnection . 26
9 Additional requirements and test procedure .26
9.1 General conditions on tests .26
9.2 Protection against ingress of solid foreign objects and water . 27
9.3 Withstand voltage test . 27
9.3.1 General . 27
9.3.2 Test voltage. 27
9.3.3 Dielectric withstand voltage of voltage class A direct current part .28
9.4 Isolation resistance .28
9.4.1 General .28
9.4.2 Additional measures at a non-maintained isolation resistance .28
9.5 Creepage distance and clearance .28
9.6 Requirements for the emission of hazardous gases and other hazardous substances .29
9.7 Permissible surface temperature .29
9.8 Unintentional charging system behaviour .29
9.8.1 General .29
9.8.2 Unintended reverse power flow .29
9.9 Electromagnetic compatibility.29
9.9.1 Susceptibility . 29
9.9.2 Emissions .29
9.10 Service .29
10 Marking, instructions, and indications .29
10.1 Marking .29
10.2 Legibility . 30
10.3 Connection instructions. 30
10.4 Indication. 30
Annex A (informative) Charging types .31
Annex B (normative) EV connected to DC EV supply equipment according to IEC 61851-25 .35
Annex C (normative) Connection of an EV to a DRI EV supply equipment according to
IEC TS 61851-3 all parts .37
Bibliography .38
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oSIST prEN ISO 18246:2022
ISO/DIS 18246:2022(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO's adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 38,
Motorcycles and mopeds.
If there is any lack of requirements especially for safety issues in this International Standard, the
requirement in other relevant standards, such as ISO 17409, is adopted.
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oSIST prEN ISO 18246:2022
ISO/DIS 18246:2022(E)
Introduction
This document prescribes basic safety requirements for electrically propelled mopeds and motorcycles,
which are called electric vehicles, for simplicity, while connected to an external electric power supply.
1)
The safety requirements for off-board appliances/equipment are not described in this document.
This document does not standardize specific charging method in the body text. The requirements for
the specific charging method are described as Annex.
Moped and motorcycle are defined in ISO 3833:1977, 3.4 and 3.5.
1) See IEC 60335-2-29, IEC 61851-25, and IEC TS 61851-3 series. NOTE IEC TS 61851-3 series are under
preparation. Stage at the time of publication: IEC 69/648/DTS, IEC 69/649/DTS, IEC 69/650/DTS, IEC 69/651/
DTS, IEC 69/652/DTS and IEC 69/653/DTS:2019
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oSIST prEN ISO 18246:2022
DRAFT INTERNATIONAL STANDARD ISO/DIS 18246:2022(E)
Electrically propelled mopeds and motorcycles — Safety
requirements for conductive connection to an external
electric power supply
1 Scope
This document specifies safety requirements for conductive connection to of electrically propelled
mopeds and motorcycles (hereinafter referred to as the "electric vehicles") to external electric circuits.
NOTE 1 External electric circuits include external electric power supplies and external electric loads.
It does not provide comprehensive safety information for manufacturing, maintenance and repair
personnel.
It applies only to on-board charging systems between the plug or vehicle inlet and RESS circuits.
NOTE 2 The requirements when not connected to external electric circuits are specified in ISO 13063 all
parts.
Requirements for bidirectional energy transfer DC to AC are under consideration and are not part of
this edition.
NOTE 3 The safety requirements for DC EV supply equipment where protection relies on electrical separation,
are specified in IEC 61851-25.
[NOTE 4 The safety requirements for DC EV supply equipment where protection relies on double
or reinforced insulation, are specified in IEC TS 61851-3-1 and 3-2.]
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.
ISO 3864-1, Graphical symbols — Safety colours and safety signs — Part 1: Design principles for safety
signs and safety markings
ISO 20653, Road vehicles — Degrees of protection (IP code) — Protection of electrical equipment against
foreign objects, water and access
IEC 60664-1, Ed. 2.0:2007, Insulation coordination for equipment within low-voltage systems — Part 1:
Principles, requirements and tests
IEC 60950-1, Ed. 2.0:2005, Information technology equipment — Safety — Part 1: General requirements
IEC 61851-25, Ed. 1.0, Electric vehicle conductive charging system — Part 25: DC EV supply equipment
where protection relies on electrical separation
1)
IEC/TS 61851-3-1, Ed. 1.0, Electric Vehicles conductive power supply system — Part 3-1: General
Requirements for EV supply equipment where protection relies on double or reinforced insulation – AC and
DC conductive power supply systems
2)
IEC/TS 62196-4, Ed. 1.0, Plugs, socket-outlets, vehicle connectors and vehicle inlets — Conductive
charging of electric vehicles — Part 4: Dimensional compatibility and interchangeability requirements for
d.c. pin and contact-tube accessories for class II or class III applications
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oSIST prEN ISO 18246:2022
ISO/DIS 18246:2022(E)
3)
IEC 62196-6, Ed. 1.0, Plugs, socket-outlets, vehicle connectors and vehicle inlets — Conductive charging
of electric vehicles — Part 6: Dimensional compatibility requirements for DC pin and contact-tube vehicle
couplers for DC EV supply equipment where protection relies on electrical separation
NOTE 1 Under preparation. Stage at the time of publication: IEC 69/648/DTS: 2019.
NOTE 2 Under preparation. Stage at the time of publication: IEC 23H/382/DTS: 2017.
NOTE 3 Under preparation. Stage at the time of publication: IEC 23H/464/CDV: 2020.
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:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
3.1 General
3.1.1
electric vehicle
EV
vehicle with one or more electric drive(s) for vehicle propulsion
Note 1 to entry: In the context of this document, the term electric vehicle includes only moped or motorcycle.
[SOURCE: ISO DIS 13063-3:2019, 3.19, modified — Terminological entry "electrically propelled vehicle"
is removed, and note is added.]
3.1.2
rechargeable energy storage system
RESS
system that stores energy for delivery of electric energy and which is rechargeable
EXAMPLE Batteries, capacitors.
[SOURCE: ISO DIS 13063-3:2019, 3.29]
3.1.3
removable RESS
RESS that can be moved /removed from an EV by hand (portable RESS) or with the assistance of an
installation/device (mobile RESS)
[SOURCE: EN 50604-1:2016 +A1: 2021, 3.18]
3.1.4
indoor use
intended for operation under normal ambient conditions in a building
[SOURCE: IEC 61851-1:2017, 3.6.1]
3.1.5
outdoor use
capable of operating under specific range of outdoor conditions
[SOURCE: IEC 61851-1:2017, 3.6.2]
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oSIST prEN ISO 18246:2022
ISO/DIS 18246:2022(E)
3.1.6
maximum working voltage
highest value of AC voltage (r.m.s.) or of DC voltage that can occur in an electric system under any
normal operating conditions according to the manufacturers’ specifications, disregarding transients
[SOURCE: ISO DIS 13063-3:2019, 3.26]
3.1.7
voltage class A
classification of an electric component or circuit as belonging to voltage class A, if its maximum working
voltage is ≤30 V AC or ≤60 V DC, respectively
Note 1 to entry: The values 60 V DC and 30 V AC are selected taking into account humid weather conditions.
[SOURCE: ISO DIS 13063-3:2019, 3.33, modified — Note 1 to entry is added from ISO 13063:2012,
Table 1.]
3.1.8
voltage class B
classification of an electric component or circuit as belonging to voltage class B, if its maximum working
voltage is >30 and ≤1 000 V AC or >60 and ≤1 500 V DC, respectively
Note 1 to entry: The values 60 V DC and 30 V AC are selected taking into account humid weather conditions.
[SOURCE: ISO DIS 13063-3:2019, 3.34, modified — Note 1 to entry is added from ISO 13063:2012,
Table 1.]
3.1.9
electric chassis
conductive parts of a vehicle that are electrically connected and whose potential is taken as reference
[SOURCE: ISO DIS 13063-3:2019, 3.15]
3.1.10
accessible part
a part which can be touched by means of the standard test finger
[SOURCE: IEV 442-01-15]
3.1.11
degree of protection
protection provided by an enclosure against access, foreign objects and/or water and verified by
standardized test methods
[SOURCE: ISO 20653:2013, 3.2]
3.1.12
single fault condition
condition in which one means for protection against electric shock is defective or one fault is present
which could cause a hazard
Note 1 to entry: If a single fault condition results in one or more other fault conditions, all are considered as one
single fault condition.
[SOURCE: IEC 61140:2016, 3.1.4]
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oSIST prEN ISO 18246:2022
ISO/DIS 18246:2022(E)
3.2 Charging
3.2.1
EV charging system
complete system including the EV supply equipment and the EV functions that are required to supply
electric energy to an EV for the purpose of charging
[SOURCE: IEC 61851-1:2017, 3.1.4]
3.2.2
on-board charging system
on-board sections of EV charging system, which may have dedicated control functions used for the
connection of the vehicle to an external electric circuit.
3.2.3
on-board charging equipment
equipment or a combination of equipment in the on-board charging system
3.2.4
external electric power supply
electric power source which is outboard of the vehicle for supplying electric energy to electric vehicle
for electric propulsion
[SOURCE: ISO 17409:2015, 3.23]
3.2.5
EV supply equipment
equipment or combined equipment providing dedicated functions for an electric power supply from
a fixed installation to an EV for the purpose of charging for all dedicated charging modes and cases of
connection
[SOURCE: ISO 17409:2015, 3.21]
3.2.6
charger
power converter that performs the necessary functions for charging a battery
3.2.7
charger assembly
power converter that performs the necessary functions for charging a battery, including cables
3.2.8
vehicle power supply circuit
voltage class B electric circuit which includes all parts that are galvanically connected to the vehicle
inlet (case B, case C) or the plug (case A) and that is operational when connected to an external electric
power supply
Note 1 to entry: Case A, case B and case C are defined in IEC 61851-1.
[SOURCE: ISO 17409:2015, 3.47, modified — Note 1 to entry is added from ISO TR 8713-1:2018.]
3.2.9
primary circuit
circuit in the charger intended to be galvanically connected to a supply network (mains)
3.2.10
secondary circuit
circuit that has no direct connection to a primary circuit and derives its power from a transformer,
converter or equivalent isolation device
[SOURCE: IEC 61851-23:2014, 3.112]
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