National foreword

This British Standard is the UK implementation of EN 62752:2024. It is identical to IEC 62752:2024. It supersedes BS EN 62752:2016+A1:2020, which is withdrawn.

The UK participation in its preparation was entrusted to Technical Committee PEL/23/1, Circuit breakers and similar equipment for household use.

A list of organizations represented on this committee can be obtained on request to its committee manager.

Contractual and legal considerations

This publication has been prepared in good faith, however no representation, warranty, assurance or undertaking (express or implied) is or will be made, and no responsibility or liability is or will be accepted by BSI in relation to the adequacy, accuracy, completeness or reasonableness of this publication. All and any such responsibility and liability is expressly disclaimed to the full extent permitted by the law.

This publication is provided as is, and is to be used at the recipient’s own risk.

The recipient is advised to consider seeking professional guidance with respect to its use of this publication.

This publication is not intended to constitute a contract. Users are responsible for its correct application.

Compliance with a British Standard cannot confer immunity from legal obligations.

This European Standard was approved by CENELEC on 2024-05-01. 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United Kingdom.

European foreword

The text of document 23E/1342/FDIS, future edition 2 of IEC 62752, prepared by SC 23E "Circuit-breakers and similar equipment for household use" of IEC/TC 23 "Electrical accessories" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 62752:2024.

The following dates are fixed:

This document supersedes EN 62752:2016 and all of its amendments and corrigenda (if any).

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.

Any feedback and questions on this document should be directed to the users’ national committee. A complete listing of these bodies can be found on the CENELEC website.

Endorsement notice

The text of the International Standard IEC 62752:2024 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 standard indicated:

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)	IEC draws attention to the possibility that the implementation of this document may involve the use of (a) patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which may be required to implement this document. However, implementers are cautioned that this may not represent the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC shall not be held responsible for identifying any or all such patent rights.

IEC 62752 has been prepared by subcommittee 23E: Circuit-breakers and similar equipment for household use, of IEC technical committee 23: Electrical accessories, in co-operation with ISO TC 22/SC 37 Electrically propelled vehicles. It is an International Standard.

This second edition cancels and replaces the first edition published in 2016, and Amendment 1:2018. This edition constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous edition:

Subclause 8.3.1 revised to add requirements for a mandatory control device that detects the temperature of the current carrying parts in the household plug;
Test requirements added in a new Subclause 9.36 for the temperature control device;
Harmonization of EMC requirements with new edition of IEC 61543 and IEC 61851‑21‑2;
General improvement of test and requirements.

The text of this International Standard is based on the following documents:

Full information on the voting for its approval can be found in the report on voting indicated in the above table.

The language used for the development of this International Standard is English.

This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are described in greater detail at www.iec.ch/publications.

In this document, the following print types are used:

Requirements proper, in roman type;
Test specifications, in italic type;
NOTES, in smaller roman type.

The committee has decided that the contents of this document will remain unchanged until the stability date indicated on the IEC website under webstore.iec.ch in the data related to the specific document. At this date, the document will be

reconfirmed,
withdrawn, or
revised.

INTRODUCTION

The essential purpose of this document is the safe and reliable access of electric vehicles to a supply system. The definition for "mode 2 charging of electric vehicle" is described in IEC 61851‑1.

For all charging modes, protection against electric shock in case of failure of basic protection and/or fault protection is provided, at least by a type A residual current device (RCD) (see IEC 60364‑7‑722 and IEC 61851‑1).

For mode 2 charging, including the situation where it cannot be guaranteed that the installation is equipped with RCDs, for example charging the electric vehicle at an unknown installation, a dedicated protection is used for the connected electric vehicle. The intention of this document is to describe the relevant requirements for an in-cable control and protection device (IC-CPD) to be used for mode 2 charging.

This version of IEC 62752 covers also the content of the former IEC 62335.

1 Scope

This International Standard applies to in-cable control and protection devices (IC-CPDs) for mode 2 charging of electric road vehicles, hereafter referred to as "IC-CPD", including control and safety functions.

This document applies to portable devices performing simultaneously the functions of detection of the residual current, of comparison of the value of this current with the residual operating value and of opening of the protected circuit when the residual current exceeds this value.

The IC-CPD according to this document

provides a control pilot function in accordance with IEC 61851‑1:2017, Annex A;
checks supply conditions and prevents charging in the event of supply faults under specified conditions;
can have a switched protective conductor.

Residual currents with frequencies different from the rated frequency, DC residual currents and specific environmental situations are considered.

This document is applicable to IC-CPDs performing the safety and control functions as required in IEC 61851‑1 for mode 2 charging of electric vehicles.

This document is applicable to IC-CPDs for single-phase circuits not exceeding 250 V or multi-phase circuits not exceeding 480 V, their maximum rated current being 32 A.

This document is applicable to IC-CPDs to be used in AC circuits only, with preferred values of rated frequency 50 Hz, 60 Hz or 50/60 Hz. IC-CPDs according to this document are not intended to be used for bidirectional or reverse power transfer, feeding back energy to the system for distribution of electricity.

This document is applicable to IC-CPDs having a rated residual operating current not exceeding 30 mA and which are intended to provide additional protection for the circuit downstream of the IC-CPD as it cannot be guaranteed that the upstream installation is equipped with an RCD rated I_∆n ≤ 30 mA.

The IC-CPD consists of:

a plug for connection to a socket-outlet in the fixed installation;
one or more subassemblies containing the control and protection features;
a cable between the plug and the subassemblies (optional);
a cable between the subassemblies and the vehicle connector (optional);
a vehicle connector for connection to the electric vehicle.

For plugs for household and similar use the respective requirements of the national standard and specific requirements defined by the national committee of the country where the product is placed on the market apply. If no national requirements exist, IEC 60884‑1 applies. For industrial plugs IEC 60309‑2 applies. For specific applications and areas non-interchangeable industrial plugs can be used. In this case IEC 60309‑1 applies.

Plugs, connectors and cables which are part of the IC-CPD are tested according to relevant product standards.

The switching contacts of the IC-CPD are not intended to provide an isolation function, as isolation can be ensured by disconnecting the plug.

The IC-CPD is not considered to be a protective device for use in fixed installations.

2 Normative references

3 Terms and definitions

3.1 Terms and definitions relating to plugs and socket-outlets

3.2 Terms and definitions relating to terminals

3.3 Terms and definitions relating to residual current functions

3.4 Terms and definitions relating to tests

3.5 Terms and definitions relating to construction

4 Classification

4.1 According to the supply

4.2 According to the construction

4.3 According to the method of connecting the cable(s)

4.4 Classification according to the protective conductor path

4.5 Classification according to the verification of availability of the upstream protective conductor

4.6 Classification according to the usage

5 Characteristics of IC-CPDs

5.1 Summary of characteristics

5.2 Rated quantities and other characteristics

5.3 Standard and preferred values

6 Marking and other product information

6.1 Data to be marked on the IC-CPD

6.2 Information to be provided to the end-user

7 Standard conditions for operation in service and for installation

7.1 Standard conditions

7.2 Conditions for installations

8 Requirements for construction and operation

8.1 Mechanical design

8.2 Pluggable electrical connections of pluggable IC-CPDs according to 4.3.4

8.3 Const ruction

8.4 Electrical performance

8.5 Protection against electric shock

8.6 Dielectric properties

8.7 Temperature rise

8.8 Operating characteristics

8.9 Mechanical and electrical endurance

8.10 Performance at short-circuit currents

8.11 Resistance to mechanical shock and impact

8.12 Resistance to heat

8.13 Resistance to abnormal heat and to fire

8.14 Performance of the test function

8.15 Behaviour in the event of loss of the supply voltage

8.16 Resistance of IC-CPDs against unwanted tripping due to surge currents to earth resulting from impulse voltages

8.17 Control pilot function controller

8.18 Reliability

8.19 Resistance to tracking

8.20 Electromagnetic compatibility (EMC)

8.21 Behaviour of the IC-CPD at low ambient air temperature

8.22 Operation with supply failure and hazardous live protective conductor conditions

8.23 Verification of a standing current in the protective conductor in normal service

8.24 Behaviour at specific environmental conditions

8.25 Resistance to vibration and shock

9 Tests

9.1 General

9.2 Test conditions

9.3 Test of indelibility of marking

9.4 Verification of protection against electric shock

9.5 Test of dielectric properties

9.6 Temperature-rise test

9.7 Verification of the operating characteristics

9.8 Verification of mechanical and electrical endurance

9.9 Verification of the behaviour of the IC-CPD under overcurrent conditions

9.10 Verification of resistance to mechanical shock and impact

9.11 Test of resistance to heat

9.12 Resistance of insulating material to abnormal heat and to fire

9.13 Verification of the self-test

9.14 Verification of the behaviour of IC-CPDs in the event of loss of the supply voltage

9.15 Verification of the limiting values of the non-operating current under overcurrent conditions

9.16 Verification of resistance against unwanted tripping due to surge currents to earth resulting from impulse voltages

9.17 Verification of reliability

9.18 Resistance to ageing

9.19 Resistance to tracking

9.20 Test on pins provided with insulating sleeves

9.21 Verification of the effects of strain on the conductors

9.22 Checking of the torque exerted by IC-CPDs on fixed socket-outlets

9.23 Tests of the cord anchorage

9.24 Flexing test of non-rewirable IC-CPDs

9.25 Verification of the electromagnetic compatibility (EMC)

9.26 Tests replacing verifications of creepage distances and clearances

9.27 Verifications for single electronic components used in IC-CPDs

9.28 Chemical loads

9.29 Heat test under solar radiation

9.30 Resistance to ultra-violet (UV) radiation

9.31 Damp and salt mist test for marine and coastal environments

9.32 Vehicle drive-over

9.33 Low storage temperature test

9.34 Vibration and shock test

9.35 Verification of insulating parts which keep live parts in position

9.36 Verification of the thermal control device

Bibliography

BS EN IEC 62752:2024

In-cable control and protection device (IC-CPD) for mode 2 charging of electric road vehicles

Current

Published:

31 Oct 2024