IEC 61851-1:2001

Electric vehicle conductive charging system - Part 1: General requirements

Applies to equipment for charging electric road vehicles at standard a.c.supply voltages (as per IEC 60038) up to 690 V and at d.c. voltages up to 1 000 V, and for providing electrical power for any additional services on the vehicle if required when connected to the supply network.

Système de charge conductive pour véhicules électriques - Partie 1: Règles générales

S'applique aux systèmes pour la charge des véhicules routiers électriques à des tensions alternatives normalisées (conformément à la CEI 60038) jusquà 690 V et à des tensions continues jusquà 1 000 V, ainsi que pour l'alimentation en énergie électrique, pour tout service auxiliaire du véhicule pendant la connexion au réseau électrique, si nécessaire.

General Information

• Status: Published
• Publication Date: 23-Jan-2001
• ICS: 43.120 - Electric road vehicles
• Technical Committee: TC 69 - Electrical power/energy transfer systems for electrically propelled road vehicles and industrial trucks
• Drafting Committee: WG 4 - TC 69/WG 4
• Current Stage: DELPUB - Deleted Publication
• Start Date: 25-Nov-2010
• Completion Date: 26-Oct-2025

Relations

• Revised: IEC 61851-1:2010 - Electric vehicle conductive charging system - Part 1: General requirements
• Effective Date: 05-Sep-2023

Overview

IEC 61851-1:2001 - Electric vehicle conductive charging system, Part 1: General requirements - is the International Electrotechnical Commission (IEC) standard that defines general requirements for conductive charging of electric road vehicles. It applies to charging equipment (EVSE) at standard AC supply voltages (per IEC 60038) up to 690 V AC and DC voltages up to 1 000 V DC, and covers delivering power for vehicle services when connected to the supply network. The standard addresses safety, interfaces, and operational characteristics for EV charging systems and is the foundation for interoperability between vehicles and charging infrastructure.

Key topics and technical requirements

The standard sets out high‑level technical topics and requirements, including:

• Scope and applicability

  • Charging of electric road vehicles (excludes trolley buses, rail vehicles, industrial trucks and primarily off‑road vehicles).
  • EVSE with on‑site energy storage is covered.

• System architecture and interfaces

  • EV charging modes and types of connection (Cases A, B, C) - definitions for how vehicles connect to the supply.
  • Universal and basic vehicle interfaces (physical design, contact sequencing).

• Control and communication

  • Control pilot circuit and support for PWM signaling (informative annexes describe pilot circuit behavior and vehicle states).
  • Option for serial data communication between EV and EVSE.

• Electrical safety

  • Protection against electric shock (direct and indirect contact, supplementary protection).
  • Provisions for traction battery connection and stored energy discharge.

• Hardware requirements

  • Requirements for inlets, connectors, plugs and socket‑outlets (ratings, dielectric strength, insulation resistance, clearances/creepage).
  • Mechanical and environmental criteria: service life, insertion/extraction forces, latching, IP degrees, impact, and vehicle driveover resistance.

• Charging cable and assemblies

  • Cable construction, extension cord rules and an Annex (A) with charging cable assembly requirements.

Applications and who uses it

IEC 61851-1 is essential for:

• EV manufacturers (vehicle inlet and charging interface design)
• EVSE and charging station designers and manufacturers
• Charging network operators and installers
• Test laboratories, conformity assessors and certification bodies
• Regulators and standards committees aligning national rules with international practice

Practical uses include designing interoperable charging stations, specifying connector and cable requirements, ensuring electrical safety for operators and users, and defining control pilot behavior for charge management.

Related standards

• IEC 60038 - standard voltages (referenced)
• IEC 60309 series - industrial plugs/socket‑outlets (related connector standards under consideration)
• Other parts of IEC 61851 series (e.g., Part 21, Part 22, Part 23) covering vehicle requirements and AC/DC charging stations
• Cable standards referenced (IEC 60245 series)

IEC 61851-1 provides the baseline for safe, interoperable conductive EV charging and is widely cited when implementing EV charging infrastructure and vehicle interfaces.

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD
61851-1
First edition
2001-01
Electric vehicle conductive charging system –
Part 1:
General requirements
Dispositif de charge conductive pour véhicules électriques –
Partie 1:
Prescriptions générales
Reference number
Publication numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.

Consolidated editions
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edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the
base publication incorporating amendment 1 and the base publication incorporating
amendments 1 and 2.
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INTERNATIONAL IEC
STANDARD
61851-1
First edition
2001-01
Electric vehicle conductive charging system –
Part 1:
General requirements
Dispositif de charge conductive pour véhicules électriques –
Partie 1:
Prescriptions générales
 IEC 2001  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: [phone] e-mail: [e-mail] IEC web site http://www.iec.ch
Commission Electrotechnique Internationale
PRICE CODE
W
International Electrotechnical Commission
For price, see current catalogue

– 2 – 61851-1  IEC:2001(E)
CONTENTS
Page
FOREWORD . 4

Clause
1 Scope . 6

2 Normative references . 6

3 Definitions. 7

4 General requirements. 10

5 Rating of the supply voltage . 10
6 General system requirement and interface. 10
6.1 General description . 10
6.2 EV charging modes . 10
6.3 Types of EV connection (cases A, B, and C). 11
6.4 Functions provided in each mode of charging . 11
6.4.1 Mandatory functions: . 12
6.4.2 Optional functions . 12
6.4.3 Control pilot circuit . 13
6.5 Serial data communication . 13
7 Protection against electric shock . 13
7.1 Protection against electric shock . 13
7.2 Protection against direct contact. 13
7.2.1 Accessibility of live parts . 13
7.2.2 Stored energy – discharge of capacitors . 14
7.3 Protection against indirect contact . 14
7.4 Supplementary measures. 14
7.4.1 Mandatory additional protection . 14
7.4.2 Optional additional protection . 14
7.5 Provision for the traction battery. 14
7.6 Additional requirements. 15
8 Connection between the power supply and the EV . 15
8.1 General. 15
8.2 Physical design of the universal interface . 15

8.3 Physical design of the basic interface . 16
8.4 Contact sequencing. 16
9 Specific inlet, connector, plug and socket-outlet requirements . 16
9.1 Operating temperature . 16
9.2 Vehicle inlet rating. 16
9.2.1 Universal inlet . 16
9.2.2 Basic inlet . 17
9.3 Connector rating . 18
9.3.1 Connector in accordance with the universal coupling . 18
9.3.2 Socket-outlet, plug or connector in accordance with the basic coupling . 18
9.4 Dielectric strength . 19
9.5 Insulation resistance . 19
9.6 Clearances and creepage distances . 19

61851-1  IEC:2001(E) – 3 –
Clause Page
9.7 Service life. 19

9.8 Breaking capacity:. 20

9.9 IP degrees . 20

9.10 Permissible surface temperature . 20

9.11 Insertion and extraction force . 20

9.12 Latching of the retaining device . 20

9.13 Service . 21

9.14 Impact . 21

9.15 Vehicle driveover . 21
9.16 Environmental conditions . 21
10 Charging cable. 21
10.1 Charging cable. 21
10.2 Extension cord . 21
Annex A (normative) Charging cable assembly requirements . 25
Annex B (informative) PWM control pilot circuit. 27
Annex C (informative) Control pilot circuit . 32
Annex D (informative) Coding tables for power indicator. 36
Annex E (informative) Examples of conductive charging system situations . 38
Bibliography . 39
Figure 1 – Case "A" connection – connection of an EV to an a.c. supply utilizing supply
cable and plug permanently attached to the EV. 22
Figure 2 – Case "B" connection – connection of an EV to an a.c. supply utilizing a
detachable cable assembly with a vehicle connector and a.c. supply equipment . 23
Figure 3 – Case "C" connection – connection of an EV to a.c. supply utilizing supply
cable and connector permanently attached to the supply equipment . 24
Figure B.1 – Typical control pilot circuit. 26
Figure B.2 – Control pilot equivalent circuit . 27
Figure B.3 – Supply current rating vs. pilot circuit duty cycle. 28
Figure C.1 – Mode 1 – case B. 34
Figure C.2 – Mode 3 – case B. 34

Figure C.3 – Mode 4 – case C . 35
Figure D.1 – AC mains current to measured voltage ratio. 39
Table 1 – Overview of the vehicle interface requirements . 15
Table 2 – Universal vehicle inlet requirements . 17
Table 3 – Basic vehicle inlet requirements . 17
Table 4 – Universal vehicle connector requirements. 18
Table 5 – Basic vehicle connector requirements. 19
Table B.1 – Definition of vehicle states . 30
Table B.2 – Control pilot circuit parameters (reference figure B.2) . 31
Table C.1 – Control pilot component functionality. 33
Table D.1 – Resistor values for R = 1 kΩ . 37
internal
– 4 – 61851-1  IEC:2001(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
ELECTRIC VEHICLE CONDUCTIVE CHARGING SYSTEM –

Part 1: General requirements
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. 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. The 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 the 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 National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61851-1 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
69/124/FDIS 69/127/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 3.
Annex A forms an integral part of this standard.
Annexes B, C, D and E are for information only.
The committee has decided that the contents of this publication will remain unchanged until
2005. At this date, the publication will be
reconfirmed;
withdrawn;
replaced by a revised edition, or
amended.
61851-1  IEC:2001(E) – 5 –
This standard is published in separate parts under the general title Electric vehicle conductive

charging system and includes:
– Part 1: General requirements

– Part 21: Electric vehicle requirements for conductive connection to an a.c./d.c. supply

– Part 22: AC electric vehicle charging station

– Part 23: DC electric vehicle charging station

A bilingual version of this publication may be issued at a later date.

___________
To be published.
– 6 – 61851-1  IEC:2001(E)
ELECTRIC VEHICLE CONDUCTIVE CHARGING SYSTEM –

Part 1: General requirements
1 Scope
This part of IEC 61851 applies to equipment for charging electric road vehicles at standard a.c.

supply voltages (as per IEC 60038) up to 690 V and at d.c. voltages up to 1 000 V, and for

providing electrical power for any additional services on the vehicle if required when connected
to the supply network.
The aspects covered include characteristics and operating conditions of the supply device and
the connection to the vehicle; operators and third party electrical safety; and the characteristics
to be complied with by the vehicle with respect to the a.c./d.c. EVSE, only when the EV is
earthed.
NOTE 1 Class II vehicles are not excluded, but the lack of information on this type of vehicle means that the
requirements for the standard are unavailable at present.
NOTE 2 This standard applies to EVSE with on-site storage capability.
NOTE 3 Requirements for specific inlet, connector, plug and socket-outlets for EVs are also under consideration.
They shall be incorporated in a separate standard (in the IEC 60309 series) when complete.
This standard does not cover all safety aspects related to maintenance.
This standard is not applicable to trolley buses, rail vehicles, industrial trucks and vehicles
designed primarily for use off-road.
2 Normative references
The following normative documents contain provisions which, through reference in this text,
constitute provisions of this part of IEC 61851. For dated references, subsequent amendments
to, or revisions of, any of these publications do not apply. However, parties to agreements
based on this part of IEC 61851 are encouraged to investigate the possibility of applying the
most recent editions of the normative documents indicated below. For undated references, the
latest edition of the normative document referred to applies. Members of IEC and ISO maintain
registers of currently valid International Standards.
IEC 60038:1983, IEC standard voltages

IEC 60245-1:1994, Rubber insulated cables – Rated voltages up to and including 450/750 V –
Part 1: General requirements
Amendment 1 (1997)
Amendment 2 (1997)
IEC 60245-2:1994, Rubber insulated cables – Rated voltages up to and including 450/750 V –
Part 2: Test methods
Amendment 1 (1997)
Amendment 2 (1997)
___________
There is a consolidated edition 3.2 (1998) that includes IEC 60245-1 (1994) and its amendment 1 (1997) and
amendment 2 (1997).
There is a consolidated edition 2.2 (1998) that includes IEC 60245-2 (1994) and its amendment 1 (1997) and
amendment 2 (1997).
61851-1  IEC:2001(E) – 7 –
IEC 60245-3:1994, Rubber insulated cables – Rated voltages up to and including 450/750 V –

Part 3: Heat resistant silicone rubber insulated cables

Amendment 1 (1997)
IEC 60245-4:1994, Rubber insulated cables – Rated voltages up to and including 450/750 V –

Part 4: Cords and flexible cables
Amendment 1 (1997)
IEC 60309-1:1999, Plugs, socket-outlets and couplers for industrial purposes – Part 1: General

requirements
IEC 60364-4-41:1999, Electrical installations of buildings – Part 4: Protection for safety –

Chapter 41: Protection against electric shock
IEC 60529:1989, Degrees of protection provided by enclosures (IP Code)
IEC 60950:1999, Safety of information technology equipment
3 Definitions
For the purpose of this part of IEC 61851, the following definitions apply:
3.1
auxiliary circuit
electrical circuit supplying the vehicle functions other than for propulsion, such as lamps,
windscreen motors and radios
3.2
battery assembly
energy store
assembly consisting of secondary cells or monoblocs, one or several battery trays and such
auxiliary appliances as battery fuses, automatic topping-up equipment, intercell connectors,
battery monitoring devices
3.3
cable assembly
piece of equipment which is used to establish the connection between the EV and the EVSE. It
may be either fixed and included in one of these devices, or detachable. It includes the flexible
cable and the connector and/or plug that are required for proper connection (see figures 1 to 3)
3.4
charger
power converter that performs the necessary functions for charging a battery
3.4.1
class I charger
charger having functional (basic) insulation throughout, whose conductive accessible parts are
connected to the protective earthing conductor and provided with an earthing terminal or
connection to the vehicle
3.4.2
class II charger
charger having double insulation and/or reinforced insulation throughout. It shall have a lead-
through protective conductor for earthing the EV chassis
___________
There is a consolidated edition 3.2 (1999) that includes IEC 60364-4-41 (1992) and its amendment 1 (1996) and
amendment 2 (1999).
– 8 – 61851-1  IEC:2001(E)
3.4.3
off-board charger
charger connected to the premise wiring of the a.c. supply network (mains) and designed to

operate entirely off the vehicle. In this case, direct current electrical power is delivered to the

vehicle
3.4.3.1
dedicated off-board charger
off-board charger designed to be used only by a specific type of EV, which may have control

charging functions or communication

3.4.4
on-board charger
charger mounted on the vehicle and designed to operate only on the vehicle
3.5
charging
all functions necessary to condition standard voltage and frequency a.c. supply current to a
regulated voltage/current level to assure proper charging of the EV traction battery and/or
supply of energy to the EV traction battery bus, for operating on-board electrical equipment in a
controlled manner to assure proper energy transfer
3.6
connection
means single conductive path
3.7
control pilot
the control conductor in the cable assembly connecting the in-cable control box or the fixed
part of the EVSE, and the EV earth through the control circuitry on the vehicle. It may be used
to perform several functions
3.8
earth terminal
the accessible connection point for all exposed conductive parts electrically bound together
3.9
electric vehicle (EV)
electric road vehicle (ISO)
any vehicle propelled by an electric motor drawing current from a rechargeable storage battery
or from other portable energy storage devices (rechargeable, using energy from a source off
the vehicle such as a residential or public electric service), which is manufactured primarily for

use on public streets, roads or highways
3.9.1
class I EV
an EV the protection of which against electric shocks, when connected to an a.c. supply
network (mains), does not rely only on the functional insulation, but includes supplementary
safety measures. This shall consist of connecting all exposed conductive parts to the EV earth
terminal
3.9.2
class II EV
an EV in which protection against electric shock does not rely on basic insulation only, but in
which additional safety precautions, such as double insulation or reinforced insulation, are
provided, there being no provision for protective earthing or reliance upon installation
conditions
61851-1  IEC:2001(E) – 9 –
3.10
EV supply equipment (EVSE)
the conductors, including the unearthed, earthed and equipment earthing conductors, the EV

couplers, attachment plugs, and all other accessories, devices, power outlets or apparatuses

installed specifically for the purpose of delivering energy from the premise wiring to the EV and

allowing communication between them if required

3.10.1
a.c. EV charging station
all equipment for delivering a.c. current to EVs, installed in an enclosure(s) and with special
control functions
3.10.2
d.c. EV charging station (d.c. charging station)
all equipment for delivering d.c. current to EVs, installed in an enclosure(s), with special control
functions and communication and located off the vehicle
3.11
exposed conductive part
a conductive part of electrical equipment (e.g. an EV) that may be touched and which is not
normally energized but which may be so in the case of a fault
3.11.1
direct contact
contact of persons with live parts
3.11.2
indirect contact
contact of persons with exposed conductive parts made live by an insulation failure
3.12
live part
any conductor or conductive part intended to be electrically energized in normal use
3.12.1
hazardous live part
a live part, which under certain conditions, can result in an electric shock
3.13
in-cable control box
a device which is incorporated in the cable assembly and which performs control functions. It is

located within 0,3 m of the plug or the EVSE
3.14
plug and socket-outlet
a means of enabling the manual connection of a flexible cable to fixed wiring. It consists of two
parts: a socket-outlet and a plug
3.14.1
plug
the part of a plug and socket-outlet integral with or intended to be attached to the flexible cable
connected to the socket-outlet
3.14.2
socket-outlet
the part of a plug and socket-outlet intended to be installed with the fixed wiring

– 10 – 61851-1  IEC:2001(E)
3.15
power indicator
resistor value identifying supply rating recognition by the vehicle

3.16
retaining device
a mechanical arrangement which holds a plug or connector in position when it is in proper

engagement, and prevents unintentional withdrawal of the plug or connector

NOTE The retaining device can be electrically or mechanically operated.

3.17
vehicle coupler
a means of enabling the manual connection of a flexible cable to an EV for the purpose of
charging the traction batteries. It consists of two parts: a vehicle connector and a vehicle inlet
3.17.1
vehicle connector
the part of a vehicle coupler integral with, or intended to be attached to, the flexible cable
connected to the a.c. supply network (mains)
3.17.2
vehicle inlet
the part of a vehicle coupler incorporated in, or fixed to, the EV or intended to be fixed to it
4 General requirements
The EV shall be connected to the EVSE so that in normal conditions of use the conductive
energy transfer function operates safely.
In general, this principle is achieved by fulfilling the relevant requirements specified in this
standard, and compliance is checked by carrying out all relevant tests.
5 Rating of the supply voltage
The rated value of the vehicle a.c. supply voltage is up to 690 V. The equipment shall operate
correctly within ±10 % of the standard nominal voltage (see IEC 60038). The rated value of the
frequency is 50 Hz ± 1 % or 60 Hz ± 1 %.
6 General system requirement and interface

6.1 General description
One method for EV charging is to connect the a.c. supply network (mains) to an on-board
charger. An alternative method for charging an EV is to use an off-board charger for delivering
direct current.
For charging in a short period of time, special charging facilities operating at high power levels
could be utilized.
6.2 EV charging modes
There are four possible modes of charging, as follows:

61851-1  IEC:2001(E) – 11 –
Mode 1 charging: connection of the EV to the a.c. supply network (mains) utilizing

standardized socket-outlets, rated up to 16 A, at the supply side, single-phase or three-phase,

and utilizing phase(s), neutral and protective earth conductors. The use of mode 1 charging

depends on the presence of a residual current device (RCD) on the supply side. Where the

presence of an RCD on the supply side can not be ensured by national codes, mode 1 charging

is not permissible.
NOTE 1 In some countries, mode 1 charging may be prohibited by national codes.

NOTE 2 A standardized socket-outlet is one which meets the requirements of any IEC and/or national standard.

NOTE 3 In France, Germany and Italy, the limitation to 16 A for mode 1 charging is not applicable.

Mode 2 charging: connection of the EV to the a.c. supply network (mains) utilizing
standardized socket-outlets, single-phase or three-phase, and utilizing phase(s), neutral, and
protective earth conductors together with a control pilot conductor between the EV and the plug
or in-cable control box.
Mode 3 charging: direct connection of the EV to the a.c. supply network (mains) utilizing
dedicated EVSE where the control pilot conductor extends to equipment permanently
connected to the a.c. supply network (mains).
Mode 4 charging: indirect connection of the EV to the a.c. supply network (mains) utilizing an
off-board charger where the control pilot conductor extends to equipment permanently
connected to the a.c. supply.
6.3 Types of EV connection (cases A, B, and C)
The connection of EVs may be carried out in one or more of three different ways:
Case "A" connection: connection of an EV to the a.c. supply network (mains) utilizing a
supply cable and plug permanently attached to the EV (see figure 1).
Case "B" connection: the connection of an EV to the a.c. supply network (mains) utilizing a
detachable cable assembly with a vehicle connector and a.c. supply equipment (see figure 2).
Case "C" connection: the connection of an EV to the a.c. supply network (mains) utilizing a
supply cable and vehicle connector permanently attached to the supply equipment (see
figure 3). Only case "C" is allowed for mode 4 charging.
6.4 Functions provided in each mode of charging
For mode 1 charging, no additional function is necessary.

For modes 2, 3 and 4, the additional functions shall be provided by the EVSE as a minimum, as
given below.
Mandatory functions:
− verification that the vehicle is properly connected;
− continuous protective earth conductor integrity checking;
− energization of the system;
− de-energization of the system;
− selection of charging rate.
– 12 – 61851-1  IEC:2001(E)
Optional functions:
− determination of ventilation requirements of the charging area;

− detection/adjustment of the real time available load current of the supply equipment;

− retaining / releasing of the coupling.

Other additional functions may be provided.

6.4.1 Mandatory functions
6.4.1.1 Verification that the vehicle is properly connected

The EVSE shall be able to determine that the connector is properly inserted in the vehicle inlet
and properly connected to an EV.
NOTE Separate means to prevent the vehicle from being driven off until the connector is adequately removed from
the inlet are under consideration.
6.4.1.2 Continuous protective earth conductor integrity checking
The vehicle equipment earth connection shall provide a return path for the control pilot current.
Equipment earth continuity between the EVSE and the vehicle shall be continuously verified by
measuring the current flow on the pilot line.
6.4.1.3 Energization of the system
If the control pilot circuit is established correctly, it shall allow energization of the system.
Energization may also be subject to other conditions being fulfilled.
6.4.1.4 De-energization of the system
If the control pilot circuit is interrupted, the power supply to the cable assembly shall be
interrupted but the control circuit may remain energized.
6.4.1.5 Selection of charging rate
A manual or automatic means shall be provided to ensure that the charging rate shall not
exceed the rated capacity of the a.c. supply network (mains).
6.4.2 Optional functions
6.4.2.1 Determination of ventilation requirements during charging

If additional ventilation is required during charging, charging shall only be allowed if such
ventilation is provided.
6.4.2.2 Detection/adjustment of the real time available load current of the supply
equipment
Means shall be provided to ensure that the charging rate shall not exceed the real time
available load current of the supply equipment.
NOTE This function may be mandatory under certain national codes.
6.4.2.3 Retaining/releasing of the coupler
A mechanical means should be provided to retain / release the coupler.

61851-1  IEC:2001(E) – 13 –
6.4.3 Control pilot circuit
For modes 2, 3 and 4, a control pilot circuit is mandatory. This circuit consists of the control

pilot conductor, the protective earth conductor, EVSE control electronics and further electronics

on board the EV.
The control pilot circuit shall be capable of performing at least the mandatory functions

described above in 6.4.1.1 to 6.4.1.5, may be capable of performing optional functions 6.4.2.1

to 6.4.2.2 and may contribute to other functions, for instance 6.4.2.3.

6.5 Serial data communication
The applicability of serial data communication for all charging modes is specified as follows:
Mode 1 charging – Serial data communication is not used.
Mode 2 charging – Serial data communication is optional.
Mode 3 charging – Serial data communication is optional.
Mode 4 charging – Serial data information exchange is mandatory to allow the vehicle to
control the off-board charger except in the case of dedicated off-board chargers.
The serial data communication media may be a shielded or earthed twisted pair using the three
low voltage/low current contacts provided in the coupler.
7 Protection against electric shock
7.1 Protection against electric shock
Hazardous live parts shall not be accessible.
Exposed conductive parts shall not become a hazardous live part
− either under normal conditions (operation in intended use and absence of fault),
− or under single-fault conditions.
Protection against electric shock is provided by the application of appropriate measures for pro-
tection both in normal service and in case of a fault, as defined in clause 411 of IEC 60364-4-41,
or protection in normal service (protection against direct contact or basic protection), as defined
in clause 412 of IEC 60364-4-41, and protection in case of a fault (protection against indirect
contact), as defined in clause 413 of IEC 60364-4-41.
7.2 Protection against direct contact

Protection against direct contact shall consist of one or more provisions that under normal
conditions prevent contact with hazardous-live parts.
7.2.1 Accessibility of live parts
When connected to the supply network, the EV and the EVSE shall be so designed and
constructed that hazardous live parts are not accessible, even after removal of parts that can
be removed without a tool.
Compliance is checked by inspection and according to the requirements of IEC 60529
(IPXXB).
NOTE Extra low voltage (ELV) auxiliary circuits which are galvanically connected to the vehicle body are
accessible. Particular attention is drawn to the requirements for extra low voltage (ELV) circuit isolation when the
traction battery is being charged using a non-isolated charger.

– 14 – 61851-1  IEC:2001(E)
7.2.2 Stored energy – discharge of capacitors

One second after having disconnected the EV from the supply, the voltage between any

accessible conductive parts (if any) or between any accessible conductive part and earth shall

be less than 42,4 V peak (30 V ) and the stored energy available shall be less than 20 J (see
rms
IEC 60950). If the voltage is 42,4 V peak (30 V ) or more, or the energy is 20 J or more, a
rms
warning label shall be attached in an appropriate position.

Compliance is checked by inspection and by test.

7.3 Protection against indirect contact

Protection against indirect contact shall consist of one or more recognized provision(s).
According to IEC 60364-4-41, recognized individual provisions for fault protection are:
− supplementary or reinforced insulation;
− protective equipotential bonding;
− protective screening;
− automatic disconnection of supply;
− simple separation.
7.4 Supplementary measures
7.4.1 Mandatory additional protection
Additional protection against electric shock, where the basic and/or fault protection may not be
effective or in case of carelessness by users, shall be required.
An RCD (I ≤ 30 mA) shall be provided as a part of the EV conductive supply equipment for
Δn
earthed systems.
NOTE 1 In some countries, the use of residual current devices (RCD) is ensured by national electrical regulations.
NOTE 2 In some countries, other systems of personnel protection are required.
For separated and isolated EVSE, an insulation monitor, that monitors the electrical isolation
from earth of an isolated circuit, shall automatically disconnect the supply under fault
conditions.
7.4.2 Optional additional protection
Under special environmental conditions, protection during charging may be enhanced by the

use of supplementary equipment or components.
Examples include :
− control pilot;
− earth monitoring devices.
NOTE Subclause 6.4 specifies the functions provided by the control pilot.
7.5 Provision for the traction battery
If the traction battery is bonded to the conductive mass of the vehicle (it could be the case of
an ELV traction battery) the charging system shall provide a galvanic separation between the
mains and the battery.
61851-1  IEC:2001(E) – 15 –
7.6 Additional requirements
Under normal conditions, malfunction and single-fault conditions, the charging system shall be

designed to limit the introduction of harmonic, d.c. and non-sinusoidal currents that could affect

the proper functioning of residual current devices or other equipment.

NOTE High d.c. leakage current may create excessive corrosion of the earth electrode.

8 Connection between the power supply and the EV

8.1 General
This clause provides a description of the physical conductive electrical interface requirements
between the vehicle and the EVSE which allow two designs at the vehicle interface:
− a universal interface which provides for either high power a.c. and domestic a.c. or high
power d.c. and domestic a.c. for all modes of charging;
− a basic interface which provides for domestic a.c. only for modes 1, 2 and 3 charging.
Combined, the interface provides for up to 14 contact positions as indicated in table 1.
Table 1 – Overview of the vehicle interface requirements
b
Position No. Universal Basic Functions
High power a.c./a.c. High power d.c./a.c. a.c.
a a
1 500 V   250 A – High power d.c./a.c.
600 V   400A
2 500 V   250 A 600 V   400 A – High power d.c./a.c.
3 500 V   250 A –– High power a.c.
4 400 V   32 A 400 V   32 A 400 V   32 A L1
5 400 V   32 A 400 V   32 A 400 V   32 A L2
6 400 V   32 A 400 V   32 A 400 V   32 A L3
7 400 V   32 A 400 V   32 A 400 V   32 A Neutral
8 Rated for fault Rated for fault Rated for fault PE
c
9 30 V   2 A 30 V   2 A 30 V   2 A
Control pilot
10 30 V   2 A 30 V   2 A Communication 1 (+)
11 30 V   2 A 30 V   2 A Communication 2 (-)
12 30 V   2 A 30 V   2 A Clean data earth
13 30 V   2 A Power indicator

14 30 V   2 A Power indicator
a
For high power contacts, the duty cycle is under consideration.
b
For contacts 9 to 14, environmental conditions may demand larger conductor cross-sections.
c
In the absence of the control pilot circuit pin 9 may be used for the power indicator circuit only provided it does
not interfere with the control pilot function.
NOTE In some countries, the branch circuit overcurrent protection is based upon 125 % of the device rating.
8.2 Physical design of the universal interface
The universal interface shall contain up to 12 power or signal contacts, with only one physical
configuration of contact positions. These positions may be used or not, according to the mode
of charging of the vehicle. The electrical ratings and their function are described in table 1.

– 16 – 61851-1  IEC:2001(E)
The universal vehicle inlet shall be intermateable with either the high power a.c. connector or

the high power d.c. connector. Both types of vehicle inlet shall be intermateable with the

domestic a.c. connector. A means shall be used on the vehicle inlet and the power connectors

to ensure that the d.c. power connector cannot be mated with the a.c. vehicle inlet and vice

versa.
If necessary, vehicles using the universal inlet shall provide means to convert the resistor

power indicator used with the basic interface to the control pilot signal, either in the connector

or in the supply cord.
8.3 Physical design of the basic interface

The basic interface shall contain up to eight power or signal contacts, with standard physical
configurations of contact positions for single-phase and for three-phase. The electrical ratings
and their function are described in table 1.
The basic vehicle inlet shall be intermateable with either the single-phase or the three-phase
connector. It shall not be intermateable with accessories of the universal interface type.
This coupler is rated 230 V 32 A single-phase or 230 / 400 V 32 A three-phase. It may include
additional contacts for control pilot and power indicator.
8.4 Contact sequencing
For safety reasons, the contact sequence during the connection process shall be such that the
earth connection is made first and the pilot connection is made last. The order of connection of
the other contacts is not specified. During disconnection, the pilot connection shall be broken
first and the earth connection shall be broken last.
9 Specific inlet, connector, plug and socket-outlet requirements
9.1 Operating temperature
The coupling shall be designed to withstand continuous ambient temperatures in the range of
–30 °C to +50 °C during normal operation. For storage, the coupling shall be designed to
withstand continuous ambient temperatures in the range of –50 °C to +80 °C.
NOTE National codes and regulations may require different operating temperature ranges.
9.2 Vehicle inlet rating
The contacts in the vehicle inlet shall be electrically rated in accordance with the requirements

of the vehicle.
9.2.1 Universal inlet
The maximum rated voltage and current values of the vehicle inlet are in accordance with
table 2, where applicable. Lower currents values are available.

61851-1  IEC:2001(E) – 17 –
Table 2 – Universal vehicle inlet requirements

Universal
b
Position No.
Functions
High power a.c./a.c. High power d.c./a.c.

a
1 600 V 400 Aa High power d.c./a.c.
500 V 250 A
2 500 V 250 A 600 V 400 A High power d.c./a.c.

3 500 V 250 A – High power a.c.

4 400 V 32 A 400 V 32 A L1
5 400 V 32 A 400 V 32 A L2
6 400 V 32 A 400 V 32 A L3
7 400 V 32 A 400 V 32 A Neutral
8 Rated for fault Rated for fault PE
c
9 30 V 2 A 30 V 2 A
Control pilot
10 30 V 2 A 30 V 2 A Communication 1 (+)
11 30 V 2 A 30 V 2 A Communication 2 (–)
12 30 V 2 A 30 V 2 A Clean data earth
a
For high power contacts, the duty cycle is under consideration.
b
For contacts 9 to 12, environmental conditions may demand larger conductor cross-sections.
c
In the absence of the control pilot circuit, pin 9 may be used for power indicator circuit provided it does not
interfere with the control pilot function.
NOTE In some countries, the branch circuit overcurrent protection is based upon 125 % of the device rating.
9.2.2 Basic inlet
The basic inlet is rated three-phase, 230/400 V, maximum 32 A. Lower current values are
available.
Table 3 – Basic vehicle inlet requirements
Basic
a
Position No. Functions
Single-phase Three-phase
1 400 V   32 A L1
2 400 V   32 A L2
3 400 V   32 A 400 V   32 A L3

4 400 V   32 A 400 V   32 A Neutral
5 Rated for fault Rated for fault PE
b
6 30 V   2 A 30 V   2 A
Control pilot
7 30 V   2 A 30 V   2 A Power indicator
8 30 V   2 A 30 V   2 A Power indicator
a
For contacts 6, 7 and 8, environmental conditions may demand larger conductor cross-sections.
b
In the absence of the control pilot circuit, pin 6 may be used
...

IEC 61851-1
Edition 1.0 2001-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electric vehicle conductive charging system –
Part 1: General requirements
Système de charge conductive pour véhicules électriques –
Partie 1: Règles générales
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IEC 61851-1
Edition 1.0 2001-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electric vehicle conductive charging system –
Part 1: General requirements
Système de charge conductive pour véhicules électriques –
Partie 1: Règles générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
W
CODE PRIX
ICS 43.120 ISBN 2-8318-5593-4
– 2 – 61851-1 © CEI:2001
SOMMAIRE
AVANT-PROPOS .6

1 Domaine d’application.10

2 Références normatives .10

3 Définitions .12

4 Règles générales.18

5 Valeur assignée de la tension d’alimentation .18
6 Prescriptions générales et interface .18
6.1 Description générale.18
6.2 Modes de charge des VE .20
6.3 Types de connexion des VE (cas A, B et C) .20
6.4 Fonctions associées à chacun des modes de charge .20
6.4.1 Fonctions obligatoires .22
6.4.2 Fonctions optionnelles .22
6.4.3 Circuit pilote .24
6.5 Transmission de données série.24
7 Protection contre les chocs électriques .24
7.1 Protection contre les chocs électriques .24
7.2 Protection contre les contacts directs.24
7.2.1 Accessibilité des parties actives.24
7.2.2 Energie stockée – décharge des condensateurs.26
7.3 Protection contre les contacts indirects .26
7.4 Dispositions supplémentaires.26
7.4.1 Protection supplémentaire obligatoire.26
7.4.2 Protection supplémentaire optionnelle .26
7.5 Exigences pour la batterie de traction .26
7.6 Exigences supplémentaires .28
8 Connexion entre l’alimentation électrique et le VE .28
8.1 Généralités.28
8.2 Dimensionnement physique de l’interface universelle .30
8.3 Dimensionnement physique de l’interface basique.30

8.4 Séquencement des contacts .30
9 Caractéristiques des socles de connecteur, prises mobiles, fiches et socles de prise
spécifiques .30
9.1 Température de fonctionnement .30
9.2 Dimensionnement du socle de connecteur .30
9.2.1 Socle de connecteur universel .30
9.2.2 Socle de connecteur basique .32
9.3 Dimensionnement de la prise mobile.34
9.3.1 Prise mobile conforme à l’interface universelle .34
9.3.2 Socle de prise de courant, fiche ou prise mobile conformes à
l’interface basique.34
9.4 Rigidité diélectrique .36
9.5 Résistance d’isolement .36

61851-1 © IEC:2001 – 3 –
CONTENTS
FOREWORD.7

1 Scope.11

2 Normative references.11

3 Definitions .13

4 General requirements .19

5 Rating of the supply voltage .19
6 General system requirement and interface .19
6.1 General description .19
6.2 EV charging modes .21
6.3 Types of EV connection (cases A, B, and C) .21
6.4 Functions provided in each mode of charging.21
6.4.1 Mandatory functions.23
6.4.2 Optional functions .23
6.4.3 Control pilot circuit.25
6.5 Serial data communication.25
7 Protection against electric shock.25
7.1 Protection against electric shock.25
7.2 Protection against direct contact .25
7.2.1 Accessibility of live parts .25
7.2.2 Stored energy – discharge of capacitors.27
7.3 Protection against indirect contact .27
7.4 Supplementary measures .27
7.4.1 Mandatory additional protection.27
7.4.2 Optional additional protection.27
7.5 Provision for the traction battery .27
7.6 Additional requirements .29
8 Connection between the power supply and the EV.29
8.1 General .29
8.2 Physical design of the universal interface.31
8.3 Physical design of the basic interface.31

8.4 Contact sequencing .31
9 Specific inlet, connector, plug and socket-outlet requirements .31
9.1 Operating temperature.31
9.2 Vehicle inlet rating .31
9.2.1 Universal inlet.31
9.2.2 Basic inlet.33
9.3 Connector rating.35
9.3.1 Connector in accordance with the universal coupling .35
9.3.2 Socket-outlet, plug or connector in accordance with the basic coupling.35
9.4 Dielectric strength.37
9.5 Insulation resistance.37

– 4 – 61851-1 © CEI:2001
9.6 Distances d’isolement et lignes de fuite.36

9.7 Durabilité.36

9.8 Pouvoir de coupure:.38

9.9 Degrés IP .38

9.10 Température de surface admissible .38

9.11 Effort pour l’insertion et l’extraction.38

9.12 Verrouillage du dispositif de retenue .40

9.13 Maintenance.40

9.14 Chocs.40

9.15 Ecrasement par un véhicule.40

9.16 Conditions d’environnement.40
10 Câble de charge .40
10.1 Câble de charge .40
10.2 Prolongateur.40
Annexe A (normative) Caractéristiques du câble de charge .48
Annexe B (informative) Circuit pilote à Modulation de Largeur d’Impulsion .50
Annexe C (informative) Circuit pilote .62
Annexe D (informative) Tableaux de codage pour l’indicateur de puissance .70
Annexe E (informative) Exemples de systèmes de charge conductive .74
Bibliographie .76
Figure 1 – Cas «A» – Raccordement d’un VE au réseau d’alimentation à courant alternatif
au moyen d’un câble d’alimentation et d’une fiche attachés en permanence au VE .42
Figure 2 – Cas «B» – Raccordement d’un VE au réseau d’alimentation à courant
alternatif au moyen d’un câble de charge détachable comprenant une prise mobile et
un système d'alimentation en courant alternatif.44
Figure 3 – Cas «C» – Raccordement d’un VE au réseau d’alimentation à courant
alternatif au moyen d’un câble d’alimentation et d’une prise mobile attachés en
permanence au système d’alimentation .46
Figure B.1 –Circuit pilote typique .50
Figure B.2 – Circuit pilote équivalent .52
Figure B.3 – Valeur du courant d’alimentation en fonction du facteur de marche du
circuit pilote .54
Figure C.1 – Mode 1 – Cas B .66
Figure C.2 – Mode 3 – Cas B .66
Figure C.3 – Mode 4 – Cas C .68
Figure D.1 – Courant alternatif d’alimentation en fonction du rapport de tension mesuré .72
Tableau 1 – Présentation des caractéristiques des interfaces avec le véhicule.28
Tableau 2 – Dimensionnement du socle de connecteur universel.32
Tableau 3 – Dimensionnement du socle de connecteur basique.32
Tableau 4 – Dimensionnement de la prise mobile universelle.34
Tableau 5 – Dimensionnement de la prise mobile basique .36
Tableau B.1 – Définition des états du véhicule.58
Tableau B.2 – Paramètres du circuit pilote (référence figure B.2).60
Tableau C.1– Fonctions des composants du circuit pilote .64
Tableau D.1 – Valeur de résistance pour R = 1 kΩ.72
internal
61851-1 © IEC:2001 – 5 –
9.6 Clearances and creepage distances.37

9.7 Service life .37

9.8 Breaking capacity: .39

9.9 IP degrees.39

9.10 Permissible surface temperature.39

9.11 Insertion and extraction force.39

9.12 Latching of the retaining device.41

9.13 Service.41

9.14 Impact .41

9.15 Vehicle driveover .41

9.16 Environmental conditions .41
10 Charging cable .41
10.1 Charging cable .41
10.2 Extension cord.41
Annex A (normative) Charging cable assembly requirements .49
Annex B (informative) PWM control pilot circuit .51
Annex C (informative) Control pilot circuit.63
Annex D (informative) Coding tables for power indicator .71
Annex E (informative) Examples of conductive charging system situations.75
Bibliography .77
Figure 1 – Case "A" connection – connection of an EV to an a.c. supply utilizing supply
cable and plug permanently attached to the EV .43
Figure 2 – Case "B" connection – connection of an EV to an a.c. supply utilizing
a detachable cable assembly with a vehicle connector and a.c. supply equipment.45
Figure 3 – Case "C" connection – connection of an EV to a.c. supply utilizing supply
cable and connector permanently attached to the supply equipment.47
Figure B.1 – Typical control pilot circuit .51
Figure B.2 – Control pilot equivalent circuit.53
Figure B.3 – Supply current rating vs. pilot circuit duty cycle .55
Figure C.1 – Mode 1 – case B .67
Figure C.2 – Mode 3 – case B .67
Figure C.3 – Mode 4 – case C .69
Figure D.1 – AC mains current to measured voltage ratio .73

Table 1 – Overview of the vehicle interface requirements.29
Table 2 – Universal vehicle inlet requirements .33
Table 3 – Basic vehicle inlet requirements .33
Table 4 – Universal vehicle connector requirements .35
Table 5 – Basic vehicle connector requirements .37
Table B.1 – Definition of vehicle states .59
Table B.2 – Control pilot circuit parameters (reference figure B.2) .61
Table C.1– Control pilot component functionality .65
Table D.1 – Resistor values for R = 1 kΩ .73
internal
– 6 – 61851-1 © CEI:2001
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE

____________
SYSTÈME DE CHARGE CONDUCTIVE POUR VÉHICULES ÉLECTRIQUES –

Partie 1: Règles Générales
AVANT-PROPOS
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La Norme internationale CEI 61851-1 a été établie par le comité d'études 69 de la CEI:
Véhicules électriques destinés à circuler sur la voie publique et chariots de manutention
électriques.
La présente version bilingue, publiée en 2001-07, correspond à la version anglaise.
Le texte anglais de cette norme est basé sur les documents 69/124/FDIS et 69/127/RVD. Le
rapport de vote 69/127/RVD donne toute information sur le vote ayant abouti à l'approbation de
cette norme.
La version française de cette norme n'a pas été soumise au vote.
Cette publication a été rédigée selon les Directives ISO/CEI, Partie 3.
L'annexe A fait partie intégrante de cette norme.
Les annexes B, C, D et E sont données uniquement à titre d'information.

61851-1 © IEC:2001 – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
ELECTRIC VEHICLE CONDUCTIVE CHARGING SYSTEM –

Part 1: General requirements
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
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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
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Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
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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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
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
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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 61851-1 has been prepared by IEC technical committee 69: Electric
road vehicles and electric industrial trucks.

This bilingual version, published in 2001-07, corresponds to the English version.
The text of this standard is based on the following documents:
FDIS Report on voting
69/124/FDIS 69/127/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 3.
Annex A forms an integral part of this standard.
Annexes B, C, D and E are for information only.

– 8 – 61851-1 © CEI:2001
Cette norme est publiée en plusieurs parties séparées sous le titre général Système de charge

conductive pour véhicules électriques et inclut:

– Partie 1: Règles générales
– Partie 21: Exigences concernant le véhicule électrique pour la connexion conductive à une

alimentation en courant alternatif ou continu

– Partie 22: Borne de charge conductive en courant alternatif pour véhicule électrique

1)
– Partie 23: Borne de charge conductive en courant continu pour véhicule électrique

Le comité a décidé que le contenu de cette publication ne sera pas modifié avant 2005.

A cette date, la publication sera

• reconduite;
• supprimée;
• remplacée par une édition révisée, ou
• amendée.
___________
1)
A l'étude.
61851-1 © IEC:2001 – 9 –
This standard is published in separate parts under the general title Electric vehicle conductive

charging system and includes:
– Part 1: General requirements

– Part 21: Electric vehicle requirements for conductive connection to an a.c./d.c. supply

– Part 22: AC electric vehicle charging station

1)
– Part 23: DC electric vehicle charging station

The committee has decided that the contents of this publication will remain unchanged

until 2005. At this date, the publication will be

• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
___________
1)
Under consideration.
– 10 – 61851-1 © CEI:2001
SYSTÈME DE CHARGE CONDUCTIVE POUR VÉHICULES ÉLECTRIQUES –

Partie 1: Règles Générales
1 Domaine d’application
La présente partie de la CEI 61851 est applicable aux systèmes pour la charge des véhicules

routiers électriques à des tensions alternatives normalisées (conformément à la CEI 60038)

jusqu’à 690 V et à des tensions continues jusqu’à 1 000 V, ainsi que pour l’alimentation en

énergie électrique, pour tout service auxiliaire du véhicule pendant la connexion au réseau
électrique, si nécessaire.
Les aspects traités comprennent les caractéristiques et conditions de fonctionnement du
système d’alimentation et le raccordement au véhicule; la sécurité des utilisateurs et des tiers;
les caractéristiques à respecter sur le véhicule pour les parties appartenant au SAVE courant
alternatif/courant continu, uniquement lorsque le VE est mis à la terre.
NOTE 1 Les véhicules de classe II ne sont pas exclus, mais du fait du manque d’information sur ce type de
véhicules, les règles normatives ne sont pas disponibles pour le moment.
NOTE 2 Cette norme est applicable aux SAVE avec capacités de stockage sur site.
NOTE 3 Les règles applicables aux socles de connecteur, prises mobiles, fiches et socles de prises de courant
spécifiques pour VE sont également à l’étude. Elles seront incorporées dans une norme distincte (dans la série
CEI 60309) lorsqu'elles seront disponibles.
Cette norme ne traite pas l’ensemble des aspects de sécurité concernant la maintenance.
Cette norme n’est pas applicable aux trolleybus, véhicules ferroviaires, camions et véhicules
industriels conçus principalement pour une exploitation non routière.
2 Références normatives
Les documents normatifs suivants contiennent des dispositions qui, par suite de la référence
qui y est faite, constituent des dispositions valables pour la présente partie de la CEI 61851.
Pour les références datées, les amendements ultérieurs ou les révisions de ces publications
ne s’appliquent pas. Toutefois, les parties prenantes aux accords fondés sur la présente partie
de la CEI 61851 sont invitées à rechercher la possibilité d'appliquer les éditions les plus
récentes des documents normatifs indiqués ci-après. Pour les références non datées, la
dernière édition du document normatif en référence s’applique. Les membres de la CEI et de
l'ISO possèdent le registre des Normes internationales en vigueur.
CEI 60038:1983, Tensions normales de la CEI
CEI 60245-1:1994, Conducteurs et câbles isolés au caoutchouc – Tension assignée au plus

1)
égale à 450/750 V – Partie 1: Prescriptions générales
Amendement 1 (1997)
Amendement 2 (1997)
CEI 60245-2:1994, Conducteurs et câbles isolés au caoutchouc – Tension assignée au plus
2)
égale à 450/750 V – Partie 2: Méthodes d’essais
Amendement 1 (1997)
Amendement 2 (1997)
CEI 60245-3:1994, Conducteurs et câbles isolés au caoutchouc – Tension assignée au plus
égale à 450/750 V – Partie 3: Conducteurs isolés au silicone, résistant à la chaleur
Amendement 1 (1997)
___________
1)
Il existe une édition consolidée 3.2 (1998) comprenant l'édition 3.0 et ses amendements.
2)
Il existe une édition consolidée 2.2 (1998) comprenant l'édition 2.0 et ses amendements.

61851-1 © IEC:2001 – 11 –
ELECTRIC VEHICLE CONDUCTIVE CHARGING SYSTEM –

Part 1: General requirements
1 Scope
This part of IEC 61851 applies to equipment for charging electric road vehicles at standard a.c.

supply voltages (as per IEC 60038) up to 690 V and at d.c. voltages up to 1 000 V, and for

providing electrical power for any additional services on the vehicle if required when connected

to the supply network.
The aspects covered include characteristics and operating conditions of the supply device and
the connection to the vehicle; operators and third party electrical safety; and the characteristics
to be complied with by the vehicle with respect to the a.c./d.c. EVSE, only when the EV is
earthed.
NOTE 1 Class II vehicles are not excluded, but the lack of information on this type of vehicle means that the
requirements for the standard are unavailable at present.
NOTE 2 This standard applies to EVSE with on-site storage capability.
NOTE 3 Requirements for specific inlet, connector, plug and socket-outlets for EVs are also under consideration.
They shall be incorporated in a separate standard (in the IEC 60309 series) when complete.
This standard does not cover all safety aspects related to maintenance.
This standard is not applicable to trolley buses, rail vehicles, industrial trucks and vehicles
designed primarily for use off-road.
2 Normative references
The following normative documents contain provisions which, through reference in this text,
constitute provisions of this part of IEC 61851. For dated references, subsequent amendments
to, or revisions of, any of these publications do not apply. However, parties to agreements
based on this part of IEC 61851 are encouraged to investigate the possibility of applying the
most recent editions of the normative documents indicated below. For undated references, the
latest edition of the normative document referred to applies. Members of IEC and ISO maintain
registers of currently valid International Standards.
IEC 60038:1983, IEC standard voltages
IEC 60245-1:1994, Rubber insulated cables – Rated voltages up to and including 450/750 V –
1)
Part 1: General requirements
Amendment 1 (1997)
Amendment 2 (1997)
IEC 60245-2:1994, Rubber insulated cables – Rated voltages up to and including 450/750 V –
2)
Part 2: Test methods
Amendment 1 (1997)
Amendment 2 (1997)
IEC 60245-3:1994, Rubber insulated cables – Rated voltages up to and including 450/750 V –
Part 3: Heat resistant silicone rubber insulated cables
Amendment 1 (1997)
___________
1)
There exists a consolidated edition 3.2 (1998) that includes edition 3.0 and its amendments.
2)
There exists a consolidated edition 2.2 (1998) that includes edition 2.0 and its amendments.

– 12 – 61851-1 © CEI:2001
CEI 60245-4:1994, Conducteurs et câbles isolés au caoutchouc – Tension assignée au plus

égale à 450/750 V – Partie 4: Câbles souples

Amendement 1 (1997)
CEI 60309-1:1999, Prises de courant pour usages industriels – Partie 1: Règles générales

CEI 60364-4-41:1992, Installations électriques des bâtiments – Quatrième partie: Protection
1)
pour assurer la sécurité – Chapitre 41: Protection contre les chocs électriques

CEI 60529:1989, Degrés de protection procurés par les enveloppes (Code IP)

CEI 60950:1999, Sécurité des matériels de traitement de l’information
3 Définitions
Pour les besoins de la présente partie de la CEI 61851, les définitions suivantes s'appliquent:
3.1
circuit auxiliaire
circuit électrique alimentant les fonctions du véhicule autres que la propulsion, par exemple
éclairage, moteurs d’essuie-glace et radio
3.2
système de batteries
stockage d’énergie
ensemble constitué de cellules secondaires ou monoblocs, un ou plusieurs pack de batteries et
appareils auxiliaires tels que fusibles de batterie, appareil de remplissage automatique, coupleurs
de cellules, dispositifs de contrôle des batteries
3.3
câble de charge
composant utilisé pour établir la connexion entre le VE et le SAVE. Il peut être soit fixe et
intégré à l’un de ces deux systèmes soit détachable. Il comprend le câble souple et la prise
mobile et/ou la fiche qui sont prescrites pour une bonne connexion (voir figures 1 à 3)
3.4
chargeur
convertisseur d’énergie qui assure les fonctions nécessaires à la charge d’une batterie
3.4.1
chargeur de classe I
chargeur doté d’une isolation principale, dont les parties conductrices accessibles sont reliées
au conducteur de mise à la terre de protection, et d’une borne de terre ou d’une connexion au
véhicule
3.4.2
chargeur de classe II
chargeur doté d’une isolation double ou renforcée. Il doit être traversé par un conducteur de
protection pour la mise à la terre du châssis du VE
3.4.3
chargeur externe
chargeur connecté au réseau d’alimentation à courant alternatif du bâtiment et conçu pour
fonctionner en étant complètement hors du véhicule. Dans ce cas, un courant électrique
continu est fourni au véhicule
___________
1)
Il existe une édition consolidée 3.2 (1999) comprenant l'édition 3.0 et ses amendements.

61851-1 © IEC:2001 – 13 –
IEC 60245-4:1994, Rubber insulated cables – Rated voltages up to and including 450/750 V –

Part 4: Cords and flexible cables

Amendment 1 (1997)
IEC 60309-1:1999, Plugs, socket-outlets and couplers for industrial purposes – Part 1: General

requirements
IEC 60364-4-41:1992, Electrical installations of buildings – Part 4: Protection for safety –

1)
Chapter 41: Protection against electric shock

IEC 60529:1989, Degrees of protection provided by enclosures (IP Code)

IEC 60950:1999, Safety of information technology equipment
3 Definitions
For the purpose of this part of IEC 61851, the following definitions apply:
3.1
auxiliary c
...