SIST EN 61851-23:2014

Electric vehicle conductive charging system - Part 23: D.C. electric vehicle charging station

EN IEC 61851-23, together with IEC 61851-1:2010, gives the requirements for d.c. electric vehicle (EV) charging stations, herein also referred to as "DC charger", for conductive connection to the vehicle, with an a.c. or d.c. input voltage up to 1 000 V a.c. and up to 1 500 V d.c. according to IEC 60038. This part covers d.c. output voltages up to 1 500 V. Requirements for bi-directional power flow are under consideration. NOTE 2 Typical diagrams and variation of d.c. charging systems are shown in Annex DD. This standard does not cover all safety aspects related to maintenance. This part specifies the d.c. charging systems A, B and C as defined in Annexes AA, BB and CC. EMC requirements for d.c. EV charging stations are defined in IEC 61851-21-2. This standard provides the general requirements for the control communication between a d.c. EV charging station and an EV. The requirements for digital communication between d.c. EV charging station and electric vehicle for control of d.c. charging are defined in IEC 61851-24.

/

Système de charge conductive pour véhicules électriques - Partie 23: Borne de charge conductive en courant continu pour véhicules électriques

L'IEC 61851-23:2014, avec l'IEC 61851-1:2010, donne les exigences relatives aux bornes de charge à courant continu pour véhicule électrique (VE), dénommées 'Chargeur c.c.' dans le présent document, pour la connexion conductive au véhicule, avec une tension d'entrée c.a. ou c.c. jusqu'à 1 000 V c.a. et jusqu'à 1 500 V c.c. conformément à l'IEC 60038. Elle fournit les exigences générales relatives à la communication de contrôle entre borne de charge à courant continu pour véhicule électrique et un véhicule électrique. Les exigences relatives à la communication digitale entre la borne de charge à courant continu pour véhicule électrique et le véhicule électrique en vue du contrôle de la charge à courant continu sont définies dans l'IEC 61851-24.

Sistem kabelskega napajanja električnih vozil - 23. del: Postaja za kabelsko napajanje električnega vozila z enosmernim tokom (IEC 61851-23:2014)

Standard EN IEC 61851-23 skupaj s standardom IEC 61851-1:2010 podaja zahteve za postaje za kabelsko napajanje električnega vozila (EV) z enosmernim tokom, v nadaljevanju tudi »polnilnik DC«, za prevodno povezavo do vozila z izmenično (a.c.) ali enosmerno (d.c.) vhodno napetostjo do 1000 V a.c. in do 1500 V d.c. v skladu s standardom IEC 60038. Ta del zajema enosmerne izhodne napetosti do 1500 V. Zahteve za dvosmerni tok energije so v obravnavi. OPOMBA 2 Običajni diagrami in različice napajalnih sistemov z izmeničnim tokom so prikazani v Prilogi DD. Ta standard ne zajema vseh varnostnih vidikov, povezanih z vzdrževanjem. Ta del določa polnilne sisteme z izmeničnim tokom A, B in C, kot je določeno v Prilogah AA, BB in CC. Zahteve elektromagnetne združljivosti za polnilne postaje za električna vozila z enosmernim tokom so določene v standardu IEC 61851-21-2. Ta standard določa splošne zahteve za nadzorno komunikacijo med polnilno postajo za električna vozila z enosmernim tokom in električnim vozilom. Zahteve za digitalno komunikacijo med polnilno postajo za električna vozila z enosmernim tokom in električnim vozilom za nadzor polnjenja z enosmernim tokom so določene s standardom IEC 61851-24.

General Information

• Status: Published
• Publication Date: 15-Jul-2014
• ICS: 43.120 - Electric road vehicles
• Technical Committee: CEV - Electric passenger and commercial vehicles
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 09-Jul-2014
• Due Date: 13-Sep-2014
• Completion Date: 16-Jul-2014
• Directive: 2006/95/EC - Directive 2006/95/EC of the European Parliament and of the Council of 12 December 2006 on the harmonisation of the laws of Member States relating to electrical equipment designed for use within certain voltage limits (codified version)
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Mandate: M/468 - Standardisation mandate addressed to CEN and CENELEC and ETSI concerning the charging of electric vehicles
• Ref Project: EN 61851-23:2014 - Electric vehicle conductive charging system - Part 23: DC electric vehicle charging station

Relations

• Corrected By: SIST EN 61851-23:2014/AC:2016 - Electric vehicle conductive charging system - Part 23: DC electric vehicle charging station
• Effective Date: 01-Sep-2016

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 61851-23:2014
01-september-2014
6LVWHPNDEHOVNHJDQDSDMDQMDHOHNWULþQLKYR]LOGHO3RVWDMD]DNDEHOVNR
QDSDMDQMHHOHNWULþQHJDYR]LOD]HQRVPHUQLPWRNRP,(&
Electric vehicle conductive charging system - Part 23: D.C. electric vehicle charging
station
/
Système de charge conductive pour véhicules électriques - Partie 23: Borne de charge
conductive en courant continu pour véhicules électriques
Ta slovenski standard je istoveten z: EN 61851-23:2014
ICS:
43.120 (OHNWULþQDFHVWQDYR]LOD Electric road vehicles
SIST EN 61851-23:2014 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61851-23:2014

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SIST EN 61851-23:2014


EUROPEAN STANDARD EN 61851-23

NORME EUROPÉENNE

EUROPÄISCHE NORM
May 2014
ICS 43.120

English Version
Electric vehicle conductive charging system -
Part 23: DC electric vehicle charging station
(IEC 61851-23:2014)
Système de charge conductive pour véhicules électriques - Konduktive Ladesysteme für Elektrofahrzeuge - Teil 23:
Partie 23: Borne de charge en courant continu pour Gleichstromladestationen für Elektrofahrzeuge
véhicules électriques (IEC 61851-23:2014)
(CEI 61851-23:2014)
This European Standard was approved by CENELEC on 2014-04-15. CENELEC 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 CENELEC 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 CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.



European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN 61851-23:2014 E

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SIST EN 61851-23:2014
EN 61851-23:2014 - 2 -

Foreword
The text of document 69/272/FDIS, future edition 1 of IEC 61851-23, prepared by IEC/TC 69 "Electric
road vehicles and electric industrial trucks" was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN 61851-23:2014.
The following dates are fixed:
• latest date by which the document has (dop) 2015-01-15
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2017-04-15
• latest date by which the national
standards conflicting with the

document have to be withdrawn

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.
Endorsement notice
The text of the International Standard IEC 61851-23:2014 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60364-7-722 NOTE Harmonised as EN 60364-7-722 (not modified).
IEC 61851-21-2 NOTE Harmonised as en 61851-21-2 (not modified).

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SIST EN 61851-23:2014
- 3 - EN 61851-23:2014
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

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.

NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu

Publication Year Title EN/HD Year

IEC 60364-5-54 2011 Low-voltage electrical installations - HD 60364-5-54 2011
Part 5-54: Selection and erection of electrical
equipment - Earthing arrangements and
protective conductors


IEC 60950-1 (mod) 2005 Information technology equipment - Safety - EN 60950-1 2006
Part 1: General requirements

+A1 (mod) 2009  +A1 2010
+A2 (mod) 2013  +A2 2013

IEC 61140 Protection against electric shock - Common EN 61140

aspects for installation and equipment


IEC 61439-1 2011 Low-voltage switchgear and controlgear EN 61439-1 2011
assemblies -
Part 1: General rules


IEC/TS 61479-1 2005 Effects of current on human beings and - -
livestock -
Part 1: General aspects


IEC 61557-8 - Electrical safety in low voltage distribution EN 61557-8 -
systems up to 1 000 v a.c. And 1 500 v d.c. -
Equipment for testing, measuring or
monitoring of protective measures -
Part 8: insulation monitoring devices for it
systems


IEC 61558-1 2005 Safety of power transformers, power supplies, EN 61558-1 2005
reactors and similar products -
Part 1: General requirements and tests


IEC 61851-1 2010 Electric vehicle conductive charging system - EN 61851-1 2011
Part 1: General requirements


IEC 61851-24 2014 Electric vehicle conductive charging system - EN 61851-24 2013
Part 24: Digital communication between a d.c.
EV charging station and an electric vehicle for
control of d.c. charging


IEC 62052-11 - Electricity metering equipment (AC) - General EN 62052-11 -
requirements, tests and test conditions -
Part 11: Metering equipment


IEC 62053-21 - Electricity metering equipment (a.c.) - EN 62053-21 -
Particular requirements -
Part 21: Static meters for active energy
(classes 1 and 2)

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SIST EN 61851-23:2014
EN 61851-23:2014 - 4 -
Publication Year Title EN/HD Year
IEC 62196-3 - Plugs, socket-outlets, and vehicle couplers - EN 62196-3 -
conductive charging of electric vehicles -
Part 3: Dimensional compatibility and
interchangeability requirements for dedicated
d.c. and combined a.c./d.c. pin and contact-
tube vehicle couplers


ISO/IEC 15118-2 - Road vehicles – Vehicle to grid - -
communication interface -
Part 2: Technical protocol description and
open systems interconnections (OSI) layer
requirements


ISO/IEC 15118-3 - Road vehicles - Vehicle to grid communication - -
interface -
Part 3 Physical layer requirements


IEC/TS 61479-1 2005 Effects of current on human beings and - -
livestock -
Part 1: General aspects


ISO 11898-1 - Road vehicles - Controller area network - -
(CAN) -
Part 1: Data link layer and physical signalling


DIN SPEC 70121 - Electromobility - Digital communication - -
between a d.c. EV charging station and an
electric vehicle for control of d.c. charging in
the Combined Charging System

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SIST EN 61851-23:2014




IEC 61851-23

®


Edition 1.0 2014-03




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE
colour

inside










Electric vehicle conductive charging system –

Part 23: DC electric vehicle charging station




Système de charge conductive pour véhicules électriques –

Partie 23: Borne de charge en courant continu pour véhicules électriques
















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX XC


ICS 43.120 ISBN 978-2-8322-1440-4



Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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SIST EN 61851-23:2014
– 2 – IEC 61851-23:2014 © IEC 2014
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 General requirements . 10
5 Rating of the supply a.c. voltage . 10
6 General system requirement and interface. 10
7 Protection against electric shock . 18
8 Connection between the power supply and the EV. 19
9 Specific requirements for vehicle coupler . 20
10 Charging cable assembly requirements . 21
11 EVSE requirements . 21
101 Specific requirements for d.c. EV charging station . 24
102 Communication between EV and d.c. EV charging station . 29
Annex AA (normative) DC EV charging station of system A . 33
Annex BB (normative) DC EV charging station of system B . 47
Annex CC (normative) DC EV charging station of system C (Combined charging
system) . 55
Annex DD (informative) Typical d.c. charging systems . 70
Annex EE (informative) Typical configuration of d.c. charging system . 75
Bibliography . 76

Figure 101 − Overvoltage protection in case of earth fault . 16
Figure 102 − Measuring network of touch current weighted for perception or reaction . 23
Figure 103 − Step response for constant value control . 26
Figure 104 − Current ripple measurement equipment with capacitor . 27
Figure 105 – Maximum ratings for voltage dynamics . 28
Figure AA.1 − Overall schematic of system A station and EV . 34
Figure AA.2 − Interface circuit for charging control of system A station . 35
Figure AA.3 − Failure detection principle by detection of d.c. leakage current . 38
Figure AA.4 − Example of vehicle connector latch and lock monitoring circuit . 40
Figure AA.5 − State transition diagram of charging process for system A . 43
Figure AA.6 − Sequence diagram of system A . 44
Figure AA.7 − Charging current value requested by the vehicle . 45
Figure AA.8 − Output response performance of d.c. EV charging station . 46
Figure BB.1 − Schematic diagram for basic solution for d.c. charging system . 47
Figure BB.2 − Sequence diagram of charging process . 52
Figure BB.3 − Operation flow chart of start charging . 53
Figure BB.4 − Operation flow chart of stop charging . 54
Figure CC.1 − Sequence diagram for normal start up . 57

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SIST EN 61851-23:2014
IEC 61851-23:2014 © IEC 2014 – 3 –
Figure CC.2 − Sequence diagram and description for normal shutdown . 59
Figure CC.3 – Sequence diagram for d.c. supply initiated emergency shutdown . 61
Figure CC.4 – Sequence diagram for EV initiated emergency shutdown. 63
Figure CC.5 − Special components for configurations CC and EE coupler . 66
Figure CC.6 − System schematics of combined d.c. charging system. 68
Figure D.1 − Example of typical isolated system . 70
Figure D.2 – Example of typical non-isolated system . 71
Figure D.3 − Example of simplified isolated system . 71
Figure D.4 − Example of DC mains system . 72
Figure E.1 − Typical configuration of d.c. charging system . 75

Table 101 − Current ripple limit of d.c. EV charging station . 27
Table 102 − Charging state of d.c. EV charging station . 30
Table 103 − Charging control process of d.c. EV charging station at system action level . 31
Table AA.1 − Definition of symbols in Figure AA.1 and Figure AA.2 . 36
Table AA.2 − Parameters and values for interface circuit in Figure AA.2 . 37
Table AA.3 − Principle of fault protection . 37
Table AA.4 − Requirements for earth fault monitoring . 39
Table AA.5 − Recommended specification of charging current requested by the vehicle . 45
Table AA.6 − Requirements for the output response performance of d.c. EV charging
station . 45
Table BB.1 − Definitions of charging states . 50
Table BB.2 − Recommended parameters of d.c. charging security system . 51
Table CC.1 − DC couplers and maximum system output voltage for combined charging
system . 55
Table CC.2 − Definition of proximity resistor for configurations DD and FF . 55
Table CC.3 − Sequence description for normal start up . 58
Table CC.4 − Sequence description for normal shutdown . 60
Table CC.5 − Definition and description of symbols / terms . 69
Table D.1 − Example for categories of d.c. supply system to electric vehicles . 73
Table D.2 − Typical voltage ranges for isolated d.c. EV charging stations . 74

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SIST EN 61851-23:2014
– 4 – IEC 61851-23:2014 © IEC 2014
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

ELECTRIC VEHICLE CONDUCTIVE CHARGING SYSTEM –

Part 23: DC electric vehicle charging station


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 61851-23 has been prepared by IEC 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
69/272/FDIS 69/279/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.
This standard is to be read in conjunction with IEC 61851-1:2010. It was established on the
basis of the second edition (2010) of that standard.

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SIST EN 61851-23:2014
IEC 61851-23:2014 © IEC 2014 – 5 –
The clauses of particular requirements in this standard supplement or modify the
corresponding clauses in IEC 61851-1:2010. Where the text of subsequent clauses indicates
an "addition" to or a "replacement" of the relevant requirement, test specification or
explanation of Part 1, these changes are made to the relevant text of Part 1, which then
becomes part of this standard. Where no change is necessary, the words "This clause of
Part 1 is applicable" are used. Additional clauses, tables and figures which are not included in
Part 1, have a number starting from 101. Additional annexes are lettered AA, BB etc.
A list of all parts in the IEC 61851 series, published under the general title Electric vehicle
conductive charging system, can be found on the IEC website.
In this standard, the following print types are used:
– test specifications and instructions regarding application of Part 1: italic type.
– notes: smaller roman type.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site 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.

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.

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SIST EN 61851-23:2014
– 6 – IEC 61851-23:2014 © IEC 2014
INTRODUCTION
The introduction and commercialisation of electric vehicles has been accelerated in the global
market, responding to the global concerns on CO reduction and energy security.
2
Concurrently, the development of charging infrastructure for electric vehicles has also been
expanding. As a complement to the a.c. charging system, d.c. charging is recognized as an
effective solution to extend the available range of electric vehicles. The international
standardization of charging infrastructure is indispensable for the diffusion of electric vehicles,
and this standard is developed for the manufacturers’ convenience by providing general and
basic requirements for d.c. EV charging stations for conductive connection to the vehicle.

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SIST EN 61851-23:2014
IEC 61851-23:2014 © IEC 2014 – 7 –
ELECTRIC VEHICLE CONDUCTIVE CHARGING SYSTEM –

Part 23: DC electric vehicle charging station



1 Scope
This part of IEC 61851, together with IEC 61851-1:2010, gives the requirements for d.c.
electric vehicle (EV) charging stations, herein also referred to as "DC charger", for conductive
connection to the vehicle, with an a.c. or d.c. input voltage up to 1 000 V a.c. and up to 1 500
V d.c. according to IEC 60038.
NOTE 1 This standard includes information on EV for conductive connection, but limited to the necessary content
for describing the power and signaling interface.
This part covers d.c. output voltages up to 1 500 V.
Requirements for bi-directional power flow are under consideration.
NOTE 2 Typical diagrams and variation of d.c. charging systems are shown in Annex DD.
This standard does not cover all safety aspects related to maintenance.
This part specifies the d.c. charging systems A, B and C as defined in Annexes AA, BB and
CC.
NOTE 3 Typical configuration of d.c. EV charging system is shown in Annex EE.
EMC requirements for d.c. EV charging stations are defined in IEC 61851-21-2.
This standard provides the general requirements for the control communication between a d.c.
EV charging station and an EV. The requirements for digital communication between d.c. EV
charging station and electric vehicle for control of d.c. charging are defined in IEC 61851-24.
2 Normative references
This clause of Part 1 is applicable except as follows:
Addition:
IEC 60364-5-54:2011, Low-voltage electrical installations – Part 5-54: Selection and erection
of electrical equipment – Earthing arrangements and protective conductors
IEC/TS 60479-1:2005, Effects of current on human beings and livestock - Part 1: General
aspects
IEC 60950-1:2005, Information technology equipment - Safety - Part 1: General requirements
Amendment 1:2009
Amendment 2:2013
IEC 61140, Protection against electric shock – Common aspects for installation and
equipment

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SIST EN 61851-23:2014
– 8 – IEC 61851-23:2014 © IEC 2014
IEC 61439-1:2011, Low voltage switchgear and controlgear assemblies – Part 1: General
rules
IEC 61557-8, Electrical safety in low voltage distribution systems up to 1 000 V a.c. and
1 500 V d.c. – Equipment for testing, measuring or monitoring of protective measures – Part
8: Insulation monitoring devices for IT systems
IEC 61558-1:2005, Safety of power transformers, power supplies, reactors and similar
products – Part 1: General requirements and tests
IEC 61851-1:2010, Electric vehicle conductive charging system – Part 1: General
requirements
IEC 61851-24:2014, Electric vehicle conductive charging system – Part 24: Digital
communication between a d.c. EV charging station and an electric vehicle for control of d.c.
charging
IEC 62052-11, Electricity metering equipment (AC) – General requirements, tests and test
conditions – Part 11: Metering equipment
IEC 62053-21, Electricity metering equipment (a.c.) – Particular requirements – Part 21: Static
meters for active energy (classes 1 and 2)
1
IEC 62196-3:— , Plugs, socket-outlets, and vehicle couplers – Conductive charging of electric
vehicles – Part 3: Dimensional compatibility and interchangeability requirements for d.c. and
a.c./d.c. pin and tube-type contact vehicle couplers
1
ISO/IEC 15118-2:— , Road Vehicles – Vehicle to grid communication interface – Part 2:
Technical protocol description and Open Systems Interconnections (OSI) layer requirements
1
ISO/IEC 15118-3:— , Road Vehicles – Vehicle to grid communication interface – Part 3:
Physical layer and data link layer requirements
ISO 11898-1, Road vehicles – Controller area network (CAN) – Part 1: Data link layer and
physical signalling
DIN SPEC 70121, Electromobility – Digital communication between a d.c. EV charging station
and an electric vehicle for control of d.c. charging in the Combined Charging System
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 61851-1 and
IEC 61668-1, as well as the following apply.
NOTE The definitions included in this part are those having general application herein. Definitions applying to
isolating transformers, safety isolating transformers, switch mode power supplies, and their construction are
included in IEC 61558-1.
3.101
d.c. EV charging system
system composed of a DC charger, cable assembly and the equipment on EV that is required
to fulfil the charging function including digital communication for charging control

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SIST EN 61851-23:2014
IEC 61851-23:2014 © IEC 2014 – 9 –
3.102
isolated d.c. EV charging station
d.c. EV charging station with d.c. circuit on output side which is electrically separated by at
least basic insulation from a.c. circuit on power system side
3.103
non-isolated d.c. EV charging station
d.c. EV charging station with d.c. circuit on output side which is not electrically separated by
at least basic insulation from the supply system
3.104
regulated d.c. EV charging station
d.c. EV charging station that supplies vehicle battery with a charging current or charging
voltage in accordance with the request from vehicle
3.105
non-regulated d.c. EV charging station
under consideration
3.106
d.c. charging control function
DCCCF
function embedded in a d.c. EV charging station which controls d.c. power output following
VCCF direction
Note 1 to entry: This note applies to the French language only.
3.107
vehicle charging control function
VCCF
function in a vehicle which controls the charging parameters of off-board d.c. EV charging
station
Note 1 to entry: This note applies to the French language only.
3.108
CCC
controlled current charging
energy transfer method that the d.c. EV charging station regulates charging current according
to the current value
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