SIST EN 61851-21-1:2018

Electric vehicle conductive charging system - Part 21-1: Electric vehicle onboard charger EMC requirements for conductive connection to an a.c./d.c. supply

IEC 61851-21-1:2017(E), together with IEC 61851-1:2010, gives requirements for conductive connection of an electric vehicle (EV) to an AC or DC supply. It applies only to on-board charging units either tested on the complete vehicle or tested on the charging system component level (ESA - electronic sub assembly).
This document covers the electromagnetic compatibility (EMC) requirements for electrically propelled vehicles in any charging mode while connected to the mains supply. This first edition, together with IEC 61851-21-2, cancels and replaces IEC 61851-21:2001. It constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC 61851‑21:2001:
a)   this document addresses now only EMC tests instead of other electrical tests;
b)   test setups are defined more precisely;
c)   Annex A "Artificial networks, asymmetric artificial networks and integration of charging stations into the test setup" was added.

Konduktive Ladesysteme für Elektrofahrzeuge – Teil 21-1: EMV-Anforderungen an Bordladegeräte für Elektrofahrzeuge mit Wechselstrom-/Gleichstromversorgung

Système de charge conductive pour véhicules électriques - Partie 21-1: Exigences relatives à la CEM concernant les chargeurs embarqués pour véhicules électriques pour la connexion conductive à une alimentation en courant alternatif ou continu

L'IEC 61851-21-1:2017 , ainsi que l’IEC 61851-1:2010, spécifient les exigences relatives à la connexion conductive d’un véhicule électrique (VE) à une alimentation en courant alternatif ou continu. Elle ne s’applique qu’aux unités de charge embarquées soumises à essai soit sur le véhicule complet, soit au niveau des composants du système de charge (SEEE – sous-ensemble électrique/électronique).
Le présent document couvre les exigences de compatibilité électromagnétique (CEM) pour les véhicules à propulsion électrique, quel que soit le mode de charge, lorsqu’ils sont connectés au réseau électrique.
Il ne s’applique pas aux trolleybus, véhicules ferroviaires, camions et véhicules industriels conçus principalement pour une exploitation non routière, tels que les engins forestiers et de construction.
L'IEC 61851-21-1:2017, conjointement avec l’IEC 61851-21-2, annule et remplace l’IEC 61851 21:2001. Elle constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l’IEC 61851 21:2001:
a) le présent document traite désormais uniquement des essais CEM, et non plus des autres essais électriques;
b) les configurations d’essai sont définies de manière plus précise;
c) l’Annexe A "Réseaux fictifs, réseaux fictifs asymétriques et intégration des bornes de charge dans la configuration d’essai" a été ajoutée.

Sistem kabelskega napajanja električnih vozil - 21-1. del: Zahteve EMC za vgrajen napajalnik pri kabelski priključitvi na izmenično/enosmerno napajanje

Ta del standarda IEC 61851 skupaj s standardom IEC 61851-1:2010 podaja zahteve za kabelsko priključitev električnega vozila (EV) na izmenično/enosmerno napajanje. Uporablja se samo za notranje napajalne enote, preskušene na celotnem vozilu ali na ravni sestavnih delov napajalnega sistema (ESA – elektronski podsklop).
Ta dokument zajema zahteve glede elektromagnetne združljivosti (EMC) za vozila z električnim pogonom v katerem koli načinu napajanja med priključitvijo na električno omrežje.
Ta dokument se ne uporablja za trolejbuse, železniška vozila, industrijske kamione in vozila, zasnovana predvsem za terensko uporabo, kot so gozdarski in gradbeni stroji.
OPOMBA 1: Posebne varnostne zahteve, ki se uporabljajo za opremo na vozilu med napajanjem, so obravnavane v ločenih dokumentih, kot je navedeno v ustreznih točkah tega dokumenta.
OPOMBA 2: Električno vozilo (EV) vključuje vozila, ki so izključno električna, in hibridna električna vozila s priključkom ter dodatnim motorjem z notranjim izgorevanjem.

General Information

• Status: Published
• Publication Date: 10-Dec-2017
• ICS: 43.120 - Electric road vehicles
• Technical Committee: CEV - Electric passenger and commercial vehicles
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 14-Nov-2017
• Due Date: 19-Jan-2018
• Completion Date: 11-Dec-2017
• Mandate: M/468 - Standardisation mandate addressed to CEN and CENELEC and ETSI concerning the charging of electric vehicles
• Ref Project: EN 61851-21-1:2017 - Electric vehicle conductive charging system - Part 21-1: Electric vehicle on-board charger EMC requirements for conductive connection to an AC/DC supply

Relations

• Replaces: SIST EN 61851-21:2002 - Electric vehicle conductive charging system -- Part 21: Electric vehicle requirements for conductive connection to an a.c/d.c. supply
• Effective Date: 28-Nov-2017
• Corrected By: SIST EN 61851-21-1:2018/AC:2018 - Electric vehicle conductive charging system - Part 21-1: Electric vehicle on-board charger EMC requirements for conductive connection to an AC/DC supply
• Effective Date: 01-Jan-2018
• Revised: oSIST prEN IEC 61851-21-1:2025 - Conductive power and energy transfer systems for electric vehicles - Part 21-1: Electric vehicle on-board charger EMC requirements for conductive connection to AC/DC supply
• Effective Date: 07-Jun-2022

Overview

EN 61851-21-1:2017 (CLC) specifies electromagnetic compatibility (EMC) requirements for electric vehicle (EV) on-board chargers when conductively connected to an AC or DC supply. Aligned with IEC 61851-1:2010, this part applies to on-board charging units tested either as a complete vehicle or as charging system components (ESA - electronic sub-assemblies). The standard covers EMC immunity and emissions in all charging modes while the vehicle is connected to the mains. EN 61851-21-1:2017 refines test setups, limits the scope to EMC testing, and adds Annex A on artificial networks and test integration.

Key Topics

• Scope and test conditions: Defines test configurations for vehicles and ESAs during REESS (traction energy storage system) charging modes when coupled to the grid.
• Immunity tests: Electrical fast transients (EFT/burst), surge immunity, radiated RF-field immunity, pulses on supply lines and function performance criteria under disturbance.
• Emissions limits: Harmonic current limits, voltage fluctuation/flicker requirements, high-frequency conducted and radiated disturbance limits on AC/DC power lines and communication interfaces.
• Test setups and networks: Precise layouts for single- and three-phase chargers, coupling/measurement arrangements, and Artificial Networks (AN/AMN/AAN) for realistic mains and communication-line integration.
• ESA testing: Procedures for testing charging system components (ESAs) and criteria for acceptable emissions and immunity at component level.
• Integration guidance: Annex A addresses asymmetric artificial networks, PLC (power-line communication) test circuits, and how to incorporate charging stations into EMC test rigs.

Applications

• Ensuring EMC compliance for EV on-board chargers to meet regulatory and market access requirements (especially in Europe).
• Design validation and pre-compliance testing of chargers, power electronics, control pilots and PLC interfaces.
• Type-approval, certification and supplier qualification for EV manufacturers, Tier‑1 suppliers and charging‑equipment vendors.
• Laboratory test procedures for independent test houses and national standards bodies performing EMC verification.

Who should use this standard

• EV OEMs and engineering teams designing on-board chargers and power electronics
• Charging-system component (ESA) designers and integrators
• EMC test laboratories and certification bodies
• Regulatory and compliance engineers responsible for EV market entry

Related standards

EN 61851-21-1 references IEC 61851-1:2010 and commonly-used EMC standards (IEC 61000 series, CISPR, ISO road‑vehicle EMC methods). It complements EN/IEC 61851-21-2 (off-board charger EMC) and broader EV charging standards like ISO 15118 for communication.

Keywords: EN 61851-21-1:2017, electric vehicle, on-board charger, EMC, conductive charging, AC/DC supply, immunity, emissions, artificial network, ESA, charging station.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.DQMHElectric vehicle conductive charging system - Part 21-1: Electric vehicle onboard charger EMC requirements for conductive connection to an a.c./d.c. supply43.120Electric road vehiclesICS:Ta slovenski standard je istoveten z:EN 61851-21-1:2017SIST EN 61851-21-1:2018en01-januar-2018SIST EN 61851-21-1:2018SLOVENSKI
STANDARDSIST EN 61851-21:20021DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 61851-21-1
October 2017 ICS 43.120
English Version
Electric vehicle conductive charging system -
Part 21-1: Electric vehicle on-board charger EMC requirements for conductive connection to an AC/DC supply (IEC 61851-21-1:2017)
Système de charge conductive pour véhicules électriques - Partie 21-1: Exigences relatives à la CEM concernant les chargeurs embarqués pour véhicules électriques pour la connexion conductive à une alimentation en courant alternatif ou continu (IEC 61851-21-1:2017)
Konduktive Ladesysteme für Elektrofahrzeuge -
Teil 21-1: EMV-Anforderungen an Bordladegeräte für Elektrofahrzeuge mit Wechselstrom/Gleichstrom-Versorgung (IEC 61851-21-1:2017) This European Standard was approved by CENELEC on 2017-07-24. 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, Serbia, 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 © 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 61851-21-1:2017 E SIST EN 61851-21-1:2018

The following dates are fixed: • latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2018-04-27 • latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2020-10-27
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association.
Endorsement notice The text of the International Standard IEC 61851-21-1:2017 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 61851-21-2:—1 NOTE Harmonized as EN 61851-21-2:—2. ISO 15118-3 NOTE Harmonized as EN ISO 15118-3. CISPR 16-1-4:2010 NOTE Harmonized as EN 55016-1-4:2010 (not modified). CISPR 16-1-4:2010/A1:2012 NOTE Harmonized as EN 55016-1-4:2010/A1:2012 (not modified). CISPR 16-1-4:2010/A2:2017 NOTE Harmonized as EN 55016-1-4:2010/A2:2017 (not modified).
1 Under preparation. Stage at the time of publication: IEC PRVC 61851-21-2:2017. 2 Under preparation. Stage at the time of publication: FprEN 61851-21-2:2017. SIST EN 61851-21-1:2018

(normative)
Normative references to international publications
with their corresponding European publications
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.
NOTE 1
Where 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 60038 (mod) 2009
IEC standard voltages EN 60038 3 2011
IEC 61000-3-2 2014
Electromagnetic compatibility (EMC) -
Part 3-2: Limits - Limits for harmonic current emissions (equipment input current ≤ 16 A per phase) EN 61000-3-2 2014
IEC 61000-3-3 2013
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 EN 61000-3-3 2013
IEC 61000-3-11 2000
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 EN 61000-3-11 2000
IEC 61000-3-12 2011
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 EN 61000-3-12 2011
IEC 61000-4-4 2012
Electromagnetic compatibility (EMC) -
Part 4-4: Testing and measurement techniques - Electrical fast transient/burst immunity test EN 61000-4-4 2012
IEC 61000-4-5 2014
Electromagnetic compatibility (EMC) -
Part 4-5: Testing and measurement techniques - Surge immunity test EN 61000-4-5 2014
IEC 61000-6-3 2006
Electromagnetic compatibility (EMC) -
Part 6-3: Generic standards - Emission standard for residential, commercial and light-industrial environments EN 61000-6-3 2007
+A1 2010
+A1 2011 IEC 61851-1 2010
Electric vehicle conductive charging system - Part 1: General requirements EN 61851-1 2011
3 The title of EN 60038 is "CENELEC standard voltages". SIST EN 61851-21-1:2018

CISPR 12 2007
Vehicles, boats and internal combustion engines - Radio disturbance characteristics - Limits and methods of measurement for the protection of off-board receivers EN 55012 2007
+A1 2009
+A1 2009
CISPR 16-1-2 2014
Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-2: Radio disturbance and immunity measuring apparatus - Coupling devices for conducted disturbance measurements EN 55016-1-2 2014
CISPR 16-2-1 2014
Specification for radio disturbance and immunity measuring apparatus and methods - Part 2-1: Methods of measurement of disturbances and immunity - Conducted disturbance measurements EN 55016-2-1 2014
CISPR 22 (mod) 2008
Information technology equipment - Radio disturbance characteristics - Limits and methods of measurement EN 55022 +AC 2010 4 2011 4 CISPR 25 2016
Vehicles, boats and internal combustion engines - Radio disturbance characteristics - Limits and methods of measurement for the protection of on-board receivers EN 55025 2017
ISO/TR 8713 2012
Electrically propelled road vehicles - Vocabulary - -
ISO 7637-2 2011
Road vehicles - Electrical disturbances from conduction and coupling -
Part 2: Electrical transient conduction along supply lines only - -
ISO 11451-1 2015
Road vehicles - Vehicle test methods for electrical disturbances from narrowband radiated electromagnetic energy -
Part 1: General principles and terminology - -
ISO 11451-2 2015
Road vehicles - Vehicle test methods for electrical disturbances from narrowband radiated electromagnetic energy -
Part 2: Off-vehicle radiation sources - -
ISO 11452-1 2015
Road vehicles - Component test methods for electrical disturbances from narrowband radiated electromagnetic energy -
Part 1: General principles and terminology - -
ISO 11452-2 2004
Road vehicles - Component test methods for electrical disturbances from narrowband radiated electromagnetic energy -
Part 2: Absorber-lined shielded enclosure - -
ISO 11452-4 2011
Road vehicles - Component test methods for electrical disturbances from narrowband radiated electromagnetic energy -
Part-4: Harness excitation methods - -
4 Superseded by EN 55032:2012 (CISPR 32:2012) and EN 50561-1:2013. SIST EN 61851-21-1:2018

IEC 61851-21-1 Edition 1.0 2017-06 INTERNATIONAL STANDARD
Electric vehicle conductive charging system –
Part 21-1: Electric vehicle on-board charger EMC requirements for conductive connection to an AC/DC supply
INTERNATIONAL ELECTROTECHNICAL COMMISSION
ICS 43.120
ISBN 978-2-8322-4432-6
– 2 – IEC 61851-21-1:2017 © IEC 2017 CONTENTS FOREWORD . 5 1 Scope . 7 2 Normative references . 7 3 Terms and definitions . 8 4 General test conditions . 9 5 Test methods and requirements . 10 5.1 General . 10 5.1.1 Overview . 10 5.1.2 Exceptions . 10 5.2 Immunity . 10 5.2.1 General . 10 5.2.2 Function performance criteria . 11 5.2.3 Test severity level . 11 5.2.4 Immunity of vehicles to electrical fast transient/burst disturbances conducted along AC and DC power lines . 12 5.2.5 Immunity of vehicles to surges conducted along AC and DC power lines . 12 5.2.6 Immunity to electromagnetic radiated RF-fields . 15 5.2.7 Immunity to pulses on supply lines . 20 5.2.8 Immunity test and severity level overview . 20 5.3 Emissions . 23 5.3.1 Test conditions . 23 5.3.2 Emissions of harmonics on AC power lines . 23 5.3.3 Emission of voltage changes, voltage fluctuations and flicker on AC power lines . 26 5.3.4 High-frequency conducted disturbances on AC or DC power lines . 27 5.3.5 High-frequency conducted disturbances on network and telecommunication access . 30 5.3.6 High-frequency radiated disturbances . 32 5.3.7 Radiated disturbances on supply lines . 37 Annex A (normative)
Artificial networks, asymmetric artificial networks and integration
of charging stations into the test setup . 38 A.1 Overview. 38 A.2 Charging station and power mains connection . 38 A.3 Artificial networks (AN) . 39 A.3.1 General . 39 A.3.2 Low voltage (LV) powered component . 39 A.3.3 High voltage (HV) powered component . 40 A.3.4 Components involved in charging mode connected to DC power supply . 42 A.4 Artificial mains networks (AMN) . 43 A.5 Asymmetric artificial networks (AAN) . 43 A.5.1 General . 43 A.5.2 Symmetric communication lines (e.g. CAN) . 43 A.5.3 PLC on power lines. 44 A.5.4 PLC (technology) on control pilot . 45 Bibliography . 47
Figure 1 – Electrical fast transient/burst test vehicle setup . 12 SIST EN 61851-21-1:2018

IEC 61851-21-1:2017 © IEC 2017 – 3 –
Figure 2 – Vehicle in configuration "REESS charging mode coupled to the power grid" – coupling between lines for AC (single phase) and DC power lines. 13 Figure 3 – Vehicle in configuration "REESS charging mode coupled to the power grid" – coupling between each line and earth for AC (single phase) and DC power lines . 13 Figure 4 – Vehicle in configuration "REESS charging mode coupled to the power grid" – coupling between lines for AC (three phases) power lines . 14 Figure 5 – Vehicle in configuration "REESS charging mode coupled to the power grid" – coupling between each line and earth for AC (three phases) power lines . 14 Figure 6 – Example of test setup for vehicle with inlet located on the vehicle side (AC/DC power charging without communication) . 16 Figure 7 – Example of test setup for vehicle with inlet located at the front/rear
of the vehicle (AC/DC power charging without communication) . 17 Figure 8 – Example of test setup for vehicle with inlet located on vehicle side
(AC or DC power charging with communication). 18 Figure 9 – Example of test setup for vehicle with inlet located at the front/rear
of the vehicle (AC or DC power charging with communication) . 19 Figure 10 – Vehicle in configuration "REESS charging mode coupled to
the power grid" – Single-phase charger test setup. 25 Figure 11 – Vehicle in configuration "REESS charging mode coupled to
the power grid" – Three-phase charger test setup . 25 Figure 12 – Vehicle in configuration "REESS charging
mode coupled to the power grid" . 26 Figure 13 – Vehicle in configuration "REESS charging mode
coupled to the power grid" . 29 Figure 14 – Vehicle in configuration "REESS charging
mode coupled to the power grid" . 31 Figure 15 – Example of vehicle in configuration "REESS
charging mode coupled to the power grid" . 34 Figure 16 – Test configuration for ESAs involved in REESS charging
mode coupled to the power grid (example for horn antenna) . 36 Figure A.1 – Example of 5 µH AN schematic . 39 Figure A.2 – Characteristics of the AN impedance . 40 Figure A.3 – Example of 5 µH HV AN schematic . 41 Figure A.4 – Characteristics of the HV AN impedance . 41 Figure A.5 – Example of 5 µH HV AN combination
in a single shielded box . 42 Figure A.6 – Impedance matching network attached
between HV ANs and EUT . 42 Figure A.7 – Example of an impedance stabilization network for symmetric communication lines . 44 Figure A.8 – Example of a circuit for emission tests of PLC
on AC or DC powerlines . 45 Figure A.9 – Example of a circuit for immunity tests
of PLC on AC or DC powerlines . 45 Figure A.10 – Example of a circuit for emission tests
of PLC on control pilot line . 46 Figure A.11 – Example of a circuit for immunity tests
of PLC on control pilot line . 46
Table 1 – Immunity tests . 21 Table 2 – Maximum allowed harmonics
(input current ≤ 16 A per phase) . 24 Table 3 – Acceptable harmonics for Rsce = 33 (16 A < Ii ≤ 75 A) . 24 Table 4 – Maximum allowed radiofrequency conducted
disturbances on AC power lines . 27 Table 5 – Maximum allowed radiofrequency conducted
disturbances on DC power lines . 28 Table 6 – Maximum allowed radiofrequency conducted disturbances
on network and telecommunication access . 30 SIST EN 61851-21-1:2018

– 4 – IEC 61851-21-1:2017 © IEC 2017 Table 7 – Maximum allowed vehicle high-frequency
radiated disturbances . 32 Table 8 – Maximum allowed ESA high-frequency
radiated disturbances . 35 Table 9 – Maximum allowed ESA radiated
disturbances on supply lines . 37
IEC 61851-21-1:2017 © IEC 2017 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________
ELECTRIC VEHICLE CONDUCTIVE CHARGING SYSTEM –
Part 21-1: Electric vehicle on-board charger EMC requirements for conductive connection to an AC/DC supply
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 61851-21-1 has been prepared by subcommittee 69: Electric road vehicles and electric industrial trucks. This first edition, together with IEC 61851-21-2, cancels and replaces IEC 61851-21:2001. It constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC 61851-21:2001: a) this document addresses now only EMC tests instead of other electrical tests; b) test setups are defined more precisely; c) Annex A "Artificial networks, asymmetric artificial networks and integration of charging stations into the test setup" was added. SIST EN 61851-21-1:2018

– 6 – IEC 61851-21-1:2017 © IEC 2017 The text of this International Standard is based on the following documents: FDIS Report on voting 69/507/FDIS 69/516/RVD
Full information on the voting for the approval of this International Standard can be found in the report on voting indicated in the above table. This document has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts of the IEC 61851 series, under the general title: Electric vehicle conductive charging system, can be found on the IEC website. The committee has decided that the contents of this document will remain unchanged until the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to the specific document. At this date, the document will be
• reconfirmed, • withdrawn, • replaced by a revised edition, or • amended. A bilingual version of this publication may be issued at a later date.
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.
IEC 61851-21-1:2017 © IEC 2017 – 7 –
ELECTRIC VEHICLE CONDUCTIVE CHARGING SYSTEM –
Part 21-1: Electric vehicle on-board charger EMC requirements for conductive connection to an AC/DC supply
1 Scope This part of IEC 61851, together with IEC 61851-1:2010, gives requirements for conductive connection of an electric vehicle (EV) to an AC or DC supply. It applies only to on-board charging units either tested on the complete vehicle or tested on the charging system component level (ESA – electronic sub assembly). This document covers the electromagnetic compatibility (EMC) requirements for electrically propelled vehicles in any charging mode while connected to the mains supply. This document is not applicable to trolley buses, rail vehicles, industrial trucks and vehicles designed primarily to be used off-road, such as forestry and construction machines. NOTE 1 Specific safety requirements that apply to equipment on the vehicle during charging are treated in separate documents as indicated in the corresponding clauses of this document. NOTE 2 Electric vehicle (EV) includes pure electric vehicles as well as plug-in hybrid electric vehicles with additional combustion engine. 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. IEC 60038:2009, IEC standard voltages IEC 61000-3-2:2014, Electromagnetic compatibility (EMC) – Part 3-2: Limits – Limits for harmonic current emissions (equipment input current ≤ 16 A per phase) IEC 61000-3-3:2013, 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 61000-3-11:2000, 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 61000-3-12:2011, Electromagnetic compatibility (EMC) – Part 3-12 – Limits for harmonic currents produced by equipment connected to public low-voltage systems with input current > 16 A and ≤ 75 A per phase IEC 61000-4-4:2012, Electromagnetic compatibility (EMC) – Part 4-4: Testing and measurement techniques – Electrical fast transient/burst immunity test IEC 61000-4-5:2014, Electromagnetic compatibility (EMC) – Part 4-5: Testing and measurement techniques – Surge immunity test SIST EN 61851-21-1:2018

– 8 – IEC 61851-21-1:2017 © IEC 2017 IEC 61000-6-3:2006, Electromagnetic compatibility (EMC) – Part 6-3: Generic standards – Emission standard for residential, commercial and light-industrial environments
IEC 61000-6-3:2006/AMD1:2010 IEC 61851-1:2010, Electric vehicle conductive charging system – Part 1: General requirements CISPR 12:2007, Vehicles, boats and internal combustion engines – Radio disturbance characteristics – Limits and methods of measurement for the protection of off-board receivers CISPR 12:2007/AMD1:2009 CISPR 16-1-2:2014, Specification for radio disturbance and immunity measuring apparatus and methods – Part 1-2: Radio disturbance and immunity measuring apparatus – Coupling devices for conducted disturbance measurements CISPR 16-2-1:2014, Specification for radio disturbance and immunity measuring apparatus and methods – Part 2-1: Methods of measurement of disturbances and immunity – Conducted disturbance measurements CISPR 22:2008, Information technology equipment – Radio disturbance characteristics – Limits and methods of measurement CISPR 25:2016, Vehicles, boats and internal combustion engines – Radio disturbance characteristics – Limits and methods of measurement for the protection of on-board receivers ISO/TR 8713:2012, Electrically propelled road vehicles – Vocabulary ISO 7637-2:2011, Road vehicles – Electrical disturbances from conduction and coupling -- Part 2: Electrical transient conduction along supply lines only ISO 11451-1:2015, Road vehicles – Vehicle test methods for electrical disturbances from narrowband radiated electromagnetic energy – Part 1: General principles and terminology
ISO 11451-2:2015, Road vehicles – Vehicle test methods for electrical disturbances from narrowband radiated electromagnetic energy – Part 2: Off-vehicle radiation sources
ISO 11452-1:2015, Road vehicles – Component test methods for electrical disturbances from narrowband radiated electromagnetic energy – Part 1: General principles and terminology ISO 11452-2:2004, Road vehicles – Component test methods for electrical disturbances from narrowband radiated electromagnetic energy – Part 2: Absorber-lined shielded enclosure ISO 11452-4:2011, Road vehicles – Component test methods for electrical disturbances from narrowband radiated electromagnetic energy – Part 4: Harness excitation methods 3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 61851-1:2010 and ISO/TR 8713:2012, as well as the following apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: • IEC Electropedia: available at http://www.electropedia.org/ • ISO Online browsing platform: available at http://www.iso.org/obp SIST EN 61851-21-1:2018

IEC 61851-21-1:2017 © IEC 2017 – 9 –
3.1
REESS rechargeable energy storage system that provides electric energy for electric propulsion of the vehicle 3.2
on-board EV charging system all equipment in the charge power supply chain inside the vehicle Note 1 to entry: It includes the plug and cable if physically connected to the vehicle (cable cannot be removed without any tool, i.e. case A as defined in IEC 61851-1:2010). 3.3
electrical/electronic sub-assembly ESA electrical and/or electronic device or set(s) of devices intended to be part of a vehicle, together with any associated electrical connections and wiring, which performs one or more specialized functions 3.4
low voltage LV operating DC voltage below 60 V EXAMPLE Nominal voltages of 12 V, 24 V, 48 V. 3.5
LV harness low voltage harness with operating voltages below 60 V 3.6
high voltage HV operating voltages of 60 V to 1000 V Note 1 to entry: HV+ and HV- are abbreviations for the positive and negative terminal line, respectively. Note 2 to entry: HV definition is in accordance to CISPR 25, ISO 11451-1 and ISO 11452-1. 3.7
electric vehicle EV pure electric vehicles as well as plug-in hybrid electric vehicles with additional combustion engine 4 General test conditions The vehicle systems shall operate correctly within +10 % to –15 % of the standard nominal supply voltage. This takes into account variations that are induced by the installation as defined in Annex A of IEC 60038:2009. The rated value of the frequency is 50 Hz ± 1 % or 60 Hz ± 1 %. NOTE IEC 60038:2009 specifies the voltage at the delivery point. Annex A proposes to specify wider values to allow for further voltage variations due to installations. Test methods concern only the electric vehicle charging system with "REESS in charging mode coupled to the power grid". Tests shall be performed either on separate samples or on the whole vehicle at the vehicle manufacturer’s request as defined in the test plan. The vehicle shall be in an unladen condition except for necessary test equipment. SIST EN 61851-21-1:2018

– 10 – IEC 61851-21-1:2017 © IEC 2017 The vehicle shall be immobilized, engine OFF, and in charging mode. All other equipment which can be switched on permanently by the driver or passenger shall be OFF. The tests shall be carried out with the equipment under test (EUT) or any movable part of it placed in the most unfavourable position as defined in the test plan. Unless otherwise specified, the tests shall be carried out in a draught-free location and at an ambient temperature of 23 °C ± 5 °C according to ISO 11451-1:2015 and ISO 11452-1:2015. 5 Test methods and requirements 5.1 General 5.1.1 Overview All tests shall be carried out using the charging cable specified or provided by the electric vehicle supply equipment (EVSE) manufacturer or the electric vehicle manufacturer as described in further detail in the test plan, for example cable lengths. If the charging cable is provided by the vehicle manufacturer the extraneous length shall be z-folded in 0,5 m width. The artificial (mains) networks (AN/AMN) for power supply and asymmetric artificial networks (AAN) for charging communications to be used for these tests are described in Annex A. For electrical/electronic sub-assembly (ESA) separated on-board charger tests an appropriate load shall be used to simulate the vehicle HV-systems terminations, for example HV battery. If specific load boxes are used, these shall also be described in the test plan. 5.1.2 Exceptions Vehicles and/or ESA which are intended to be used in "REESS charging mode coupled to the power grid" in the configuration connected to a DC-charging station with a length of a DC network cable shorter than 30 m do not have to fulfil the requirements of conducted emissions, surge and fast transients (burst) neither on vehicle nor ESA level. In this case, the manufacturer shall provide a statement that the vehicle and/or ESA can be used in "REESS charging mode coupled to the power grid" only with cables shorter than 30 m. This information shall be made publicly available following the type approval. Vehicles and/or ESA which are intended to be used in "REESS charging mode coupled to the power grid" in the configuration connected to a local/private DC-charging station without additional participants do not have to fulfil requirements of conducted emissions, surge and fast transients (burst) neither on vehicle nor ESA level. In this case, the manufacturer shall provide a statement that the vehicle and/or ESA can be used in "REESS charging mode coupled to the power grid" only with a local/private DC charging station without additional participants. This information shall be made publicly available following the type approval. 5.2 Immunity 5.2.1 General The tests shall be carried out individually as single tests in sequence. The tests may be performed in any order. SIST EN 61851-21-1:2018

IEC 61851-21-1:2017 © IEC 2017 – 11 –
In general, the EUT shall be tested in configuration "REESS in charging mode coupled to the power grid". If the current consumption can be adjusted, the current shall be set to at least 20 % of its nominal value. If the current consumption cannot be adjusted, the REESS state of charge (SOC) shall be kept between 20 % and 80 % of the maximum SOC during the whole time duration of the measurement
NOTE This may lead to split the measurement in different time slots/sub-bands with the need to discharge the vehicle’s traction battery before starting the next time slot/ sub-band. The EUT shall be switched on and shall operate as defined in the test plan. The description of the test, relevant generator, appropriate methods, and the setup to be used are given in the basic standards, which are referred to in Table 1. The contents of these basic standards are not repeated here, however modifications or additional information needed for the practical application of the tests are given in this document. Only non-disturbing equipment shall be used while monitoring the vehicle or ESA. The vehicle exterior and the passenger compartment/ESA shall be monitored to determine whether the requirements are met (e.g. for vehicle test by using (a) video camera(s), a microphone, etc.). The electric vehicle shall not become dangerous or unsafe as a result of the application of the tests defined in this document. 5.2.2 Function performance criteria Subclause 5.2.2 defines the expected performance objectives for the function of the vehicle subjected to the test conditions. The performance criteria of the function (expected behaviour of the function observed during test) are listed below. NOTE This element is applicable to every single individual function of an equipment under test and describes the operational status of the defined function during and after a test. Performance criterion A: The vehicle shall not be set in motion. The charging function shall continue to operate as intended during and after the test. No degradation of performance or loss of function is allowed. Performance criterion B: The vehicle shall not be set in motion. The charging function shall continue to operate as intended after the test. No degradation of performance or loss of function is allowed after the test. During the test temporary loss of charging function is allowed provided the charging function is restored automatically without user interaction. Performance criterion C: The vehicle shall not be set in motion. Temporary loss of function is allowed, provided the function can be restored by simple operations of the controls and without the use of tools, by the user of the equipment or operator from remote position. 5.2.3 Test severity level This defines the specification of test severity level of essential signal parameters. The test severity level is the stress level applied to the equipment under test for any given test method. The test severity levels depend on the required operational characteristics of the function. Test severity levels are given in Table 1. SIST EN 61851-21-1:2018

– 12 – IEC 61851-21-1:2017 © IEC 2017 5.2.4 Immunity of vehicles to electrical fast transient/burst disturbances conducted along AC and DC power lines 5.2.4.1 General EV charging equipment directly powered by the AC power lines and DC power lines shall withstand common mode conducted disturbances to levels given in Table 1, generally caused by the switching of small inductive loads, relay contacts bouncing, or switching of high-voltage switchgear. 5.2.4.2 Electric vehicle charging equipment test This test is intended to demonstrate the immunity of the vehicle electronic systems network according to IEC 61000-4-4:2012. The electric vehicle charging equipment shall be subject to electrical fast transient/burst disturbances conducted along AC and DC power lines of the vehicle as described in 5.2.5.2. The vehicle shall be monitored during the tests. The test setup is depicted in Figure 1. The vehicle shall be placed directly on the ground plane. The cable shall be z-folded in less than 0,5 m width if longer than 1 m, placed 0,1 ( ± 0,025) m above the ground plane and at least 0,1 m away from the car body.
Key 1 EFT/burst-generator 2 AC/DC/mains 3 filter Figure 1 – Electrical fast transient/burst test vehicle setup 5.2.4.3 ESA, separated on-board charger test
The test procedure according to IEC 61000-4-4:2012 shall be applied to separated on-board charger tests. The enclosure of ESA need not be bonded to ground plane directly. 5.2.5 Immunity of vehicles to surges conducted along AC and DC power lines 5.2.5.1 General On-board EV charging equipment directly powered by the AC power mains shall withstand the voltage surges, generally caused by switching phenomena in the power grid, faults or lightning strokes (indirect strokes) as described in Table 1. IEC 0,8 (+0,2 / –0) m 1 Z1 CC CDN 3 2 SIST EN 61851-21-1:2018

IEC 61851-21-1:2017 © IEC 2017 – 13 –
The test equipment is composed of a reference ground plane (a shielded room is not required), a surge generator and a coupling/decoupling network (CDN). 5.2.5.2 Electric vehicle charging system test This test is intended to demonstrate the immunity of the vehicle electronic systems according to IEC 61000-4-5:2014. The vehicle shall be subject to surges conducted along AC and DC power lines of the vehicle. The vehicle shall be monitored during the tests. NOTE If transmitters being part of authorization and payment process might not be switched off during charging, then transmitter-specific standard applies (e.g. 3G, 4G, RFID). The vehicle shall be positioned on the ground plane. The electrical surge shall be applied on the vehicle on the AC and DC power lines between each line and earth and between lines by using CDN as described in Figures 2 to 5. The cable shall be z-folded in less than 0,5 m width if longer than 1 m, placed 0,1 ( ± 0,025) m above the ground plane and at least 0,1 m away from the car body.
Key 1 surge-generator 2 AC/DC/mains 3 filter Figure 2 – Vehicle in configuration "REESS charging mode coupled to the power grid" – coupling between lines for AC (single phase) and DC power lines
Key 1 surge-generator 2 AC/DC/mains 3 filter Figure 3 – Vehicle in configuration "REESS charging mode coupled to the power grid" – coupling between each line and earth for AC (single phase) and DC power lines IEC 0,8 (+0,2 / –0) m 2 L C = 18 µF CDN Reference earth 1 L N PE IEC 0,8 (+0,2 / –0) m 2 L C = 9 µF CDN 3 1 L N PE R = 10Ω SIST EN 61851-21-1:2018

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Key 1 surge-generator 2 AC/mains 3 filter Figure 4 – Vehicle in configuration "REESS charging mode coupled to the power grid" – coupling between lines for AC (three phases) power lines
Key 1 surge-generator 2 AC/mains 3 filter Figure 5 – Vehicle in configuration "REESS charging mode coupled to the power grid" – coupling between each line and earth for AC (three phases) power lines 5.2.5.3 ESA, separated on-board charger test The test procedure according to IEC 61000-4-5:2014 shall be applied to separated on-board charger tests. The enclosure of ESA need not be bonded to ground plane directly. IEC 0,8 (+0,2 / –0) m 2 L C = 18 µF CDN 3 1 L1 N PE L2 L3 S1 S2 1 2 3 4 1 2 3 4 IEC 0,8 (+0,2 / –0) m 2 L C = 9 µF CDN 3 1 L1 N PE L2 L3 S2 1 2 3 4 R = 10Ω SIST EN 61851-21-1:2018

IEC 61851-21-1:2017 © IEC 2017 – 15 –
5.2.6 Immunity to electromagnetic radiated RF-fields 5.2.6.1 General The EV charging system shall withstand radiated electromagnetic disturbances according to ISO 11451-2:2015. 5.2.6.2 Electric vehicle charging system test The reference point is the middle of the vehicle (from front view), 0,2 m behind the front wheel axle. For charging cables supplied by the vehicle manufacturer, extraneous length shall be z-folded in less than 0,5 m width. The cable shall be z-folded in less than 0,5 m width if longer than 1 m, placed 0,1 ( ± 0,025) m above the ground plane and at least 0,1 m away from the car body. The EV in configuration "REESS charging mode coupled to the power grid" shall comply with the requirements of the semi-anechoic chamber test according ISO 11451-2:2015 at the manufacturer's discretion. Measurements shall be made in the 20 MHz to 2 000 MHz frequency range with frequency steps according to ISO 11451-1:2015. The EV in configuration "REESS charging mode coupled to the power grid" shall be exposed to electromagnetic radiation as defined in 1.2 to 1.3 of Table 1. For vehicles with the power charging plug located at the side of the vehicle, the AMN/AN shall be placed aligned with the vehicle power charging plug and the vehicle charging cable. For vehicles with plug located front/rear or the power charging plug located at the front/rear of the vehicle, the AMN/AN shall be placed perpendicular to the vehicle power charging plug and shall be aligned with the vehicle charging cable. Figure 6 to Figure 9 depict vehicle configurations in charging mode with and without communications applied. SIST EN 61851-21-1:2018

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hey 1 vehicle under test 2 insulating support 3 charging cable bextraneous length z-foldedc 4
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