Measurement procedures of magnetic field levels generated by electronic and electrical equipment in the automotive environment with respect to human exposure - Part 1: Low frequency magnetic fields

This part of IEC 62764 applies to the assessment of human exposure to low-frequency magnetic
fields generated by automotive vehicles. For plug-in vehicles, this includes the electric vehicle
supply equipment (EVSE) and associated cables provided by the car manufacturer. This
excludes the charging station.
This document specifies the measurement procedure for the evaluation of magnetic field
exposures generated by electronic and electrical equipment (excluding intentionally
transmitting radio frequency antennas) in selected automotive environments, for passenger
cars and commercial vehicles of categories M1 and N1 as defined in
ECE/TRANS/WP.29/78/Rev.3 [1]1, with respect to human exposure. It provides standardized
operating conditions and defines recommended measurements to assess compliance with the
applicable exposure requirements.
This document covers the frequency range 1 Hz to 100 kHz and is applicable to any type of
engine and/or internal energy source.
This document does not include procedures for assessment of human exposure to
electromagnetic fields generated by wireless power transfer (WPT) equipment operating in
automotive environments. Exposure assessment procedures for WPT equipment are covered
by IEC PAS 63184 [2]. Magnetic field transients shorter than 200 ms occurring when electrical
functions are activated are not considered in this document.
Abnormal operation of the vehicle or its equipment is not taken into consideration.

Verfahren für die Messung von magnetischen Feldern, die von elektrischen und elektronischen Geräten und Einrichtungen in der Straßenfahrzeugumgebung erzeugt werden, in Bezug auf die Exposition von Personen - Teil 1: Niederfrequente magnetische Felder

Measurement procedures of magnetic field levels generated by electronic and electrical apparatus in the railway environment with respect to human exposure

L'IEC 62764-1:2022 spécifie une méthodologie pour déterminer l’exposition à plusieurs sources de champs magnétiques pour les voitures particulières et les véhicules utilitaires légers, y compris les conditions de fonctionnement normalisées et les volumes et/ou surfaces de mesure. La présente partie de l'IEC 62764 s’applique à l’évaluation de l’exposition humaine aux champs magnétiques à basse fréquence générés par les véhicules automobiles. Pour les véhicules rechargeables, cela inclut l’équipement d’alimentation des véhicules électriques (EVSE) et les câbles associés fournis par le constructeur automobile. Cela exclut la station de charge. Le présent document spécifie la procédure de mesure pour l’évaluation des expositions aux champs magnétiques générées par les équipements électroniques et électriques (à l’exclusion des antennes de radiofréquence émettant intentionnellement) dans certains environnements automobiles, pour les voitures particulières et les véhicules utilitaires des catégories M1 et N1 telles que définies dans la norme ECE/TRANS/WP.29/78/Rev.3 [1][1], en ce qui concerne l’exposition humaine. Il fournit des conditions de fonctionnement normalisées et définit les mesures recommandées pour évaluer la conformité aux exigences applicables en matière d’exposition. Le présent document couvre la gamme de fréquences de 1 Hz à 100 kHz et s’applique à tout type de moteur et/ou de source d’énergie interne.

Postopki merjenja nivojev magnetnih polj, ki jih generirata elektronska in električna oprema v motornih vozilih, glede na izpostavljenost ljudi - 1. del: Nizkofrekvenčno magnetno polje

General Information

Status
Published
Public Enquiry End Date
29-Jul-2021
Publication Date
16-Nov-2022
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
02-Nov-2022
Due Date
07-Jan-2023
Completion Date
17-Nov-2022

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SLOVENSKI STANDARD
SIST EN IEC 62764-1:2022
01-december-2022
Postopki merjenja nivojev magnetnih polj, ki jih generirata elektronska in
električna oprema v motornih vozilih, glede na izpostavljenost ljudi - 1. del:
Nizkofrekvenčno magnetno polje

Measurement procedures of magnetic field levels generated by electronic and electrical

equipment in the automotive environment with respect to human exposure - Part 1: Low

frequency magnetic fields

Measurement procedures of magnetic field levels generated by electronic and electrical

apparatus in the railway environment with respect to human exposure
Ta slovenski standard je istoveten z: EN IEC 62764-1:2022
ICS:
17.220.20 Merjenje električnih in Measurement of electrical
magnetnih veličin and magnetic quantities
SIST EN IEC 62764-1:2022 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN IEC 62764-1:2022
---------------------- Page: 2 ----------------------
SIST EN IEC 62764-1:2022
EUROPEAN STANDARD EN IEC 62764-1
NORME EUROPÉENNE
EUROPÄISCHE NORM October 2022
ICS 17.220.20
English Version
Measurement procedures of magnetic field levels generated by
electronic and electrical equipment in the automotive
environment with respect to human exposure - Part 1: Low-
frequency magnetic fields
(IEC 62764-1:2022)

Procédures de mesure de l'exposition humaine aux niveaux Verfahren für die Messung von magnetischen Feldern, die

de champs magnétiques générés par les accessoires von elektrischen und elektronischen Geräten und

électroniques et électriques dans l'environnement Einrichtungen in der Straßenfahrzeugumgebung erzeugt

automobile - Partie 1: Champs magnétiques à basse werden, in Bezug auf die Exposition von Personen - Teil 1:

fréquence Niederfrequente magnetische Felder
(IEC 62764-1:2022) (IEC 62764-1:2022)

This European Standard was approved by CENELEC on 2022-10-20. 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 Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 62764-1:2022 E
---------------------- Page: 3 ----------------------
SIST EN IEC 62764-1:2022
EN IEC 62764-1:2022 (E)
European foreword

The text of document 106/575/FDIS, future edition 1 of IEC 62764-1, prepared by IEC/TC 106

"Methods for the assessment of electric, magnetic and electromagnetic fields associated with human

exposure" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as

EN IEC 62764-1:2022.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2023-07-20

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2025-10-20

document have to be withdrawn

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC 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 62764-1:2022 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:

ISO/IEC 17025 NOTE Harmonized as EN ISO/IEC 17025
IEC 62226-1 NOTE Harmonized as EN 62226-1
---------------------- Page: 4 ----------------------
SIST EN IEC 62764-1:2022
EN IEC 62764-1:2022 (E)
Annex ZA
(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 61786-1 - Measurement of DC magnetic, AC EN 61786-1 -
magnetic and AC electric fields from 1 Hz
to 100 kHz with regard to exposure of
human beings - Part 1: Requirements for
measuring instruments
IEC 62311 2019 Assessment of electronic and electrical EN IEC 62311 2020
equipment related to human exposure
restrictions for electromagnetic fields (0 Hz
to 300 GHz)
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SIST EN IEC 62764-1:2022
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SIST EN IEC 62764-1:2022
IEC 62764-1
Edition 1.0 2022-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Measurement procedures of magnetic field levels generated by electronic and
electrical equipment in the automotive environment with respect to human
exposure –
Part 1: Low-frequency magnetic fields
Procédures de mesure de l'exposition humaine aux niveaux de champs
magnétiques générés par les accessoires électroniques et électriques dans
l'environnement automobile –
Partie 1: Champs magnétiques à basse fréquence
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.20 ISBN 978-2-8322-5607-7

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

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

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 7 ----------------------
SIST EN IEC 62764-1:2022
– 2 – IEC 62764-1:2022 © IEC 2022
CONTENTS

FOREWORD ........................................................................................................................... 5

INTRODUCTION ..................................................................................................................... 7

1 Scope .............................................................................................................................. 8

2 Normative references ...................................................................................................... 8

3 Terms, definitions and abbreviated terms ........................................................................ 9

3.1 Terms and definitions .............................................................................................. 9

3.2 Abbreviated terms ................................................................................................... 9

4 Measurement procedure .................................................................................................. 9

4.1 Measurement phases .............................................................................................. 9

4.2 Measuring conditions ............................................................................................ 10

4.3 Test site ................................................................................................................ 10

4.4 Vehicle set-up ....................................................................................................... 10

4.5 Measurement locations ......................................................................................... 10

4.5.1 General ......................................................................................................... 10

4.5.2 Inside the vehicle ........................................................................................... 11

4.5.3 Outside the vehicle ........................................................................................ 12

5 Measurement technique ................................................................................................ 12

5.1 Measuring equipment ............................................................................................ 12

5.2 Measurement of the magnetic field exposure ........................................................ 12

6 Measurement procedure ................................................................................................ 12

6.1 Vehicle in stationary mode .................................................................................... 12

6.1.1 General ......................................................................................................... 12

6.1.2 Phase 1: vehicle preparation and set-up ........................................................ 12

6.1.3 Phase 2: vehicle measurement ...................................................................... 13

6.2 Vehicle in driving mode ......................................................................................... 13

6.2.1 General ......................................................................................................... 13

6.2.2 Phase 1: vehicle preparation and set-up ........................................................ 13

6.2.3 Phase 2: vehicle measurement (at constant speed) ....................................... 13

6.2.4 Phase 3: additional measurements ................................................................ 14

6.3 Vehicle in dynamic mode ...................................................................................... 14

6.3.1 General ......................................................................................................... 14

6.3.2 Phase 1: vehicle preparation and set-up ........................................................ 14

6.3.3 Phase 2: vehicle measurement ...................................................................... 14

6.4 Vehicle in plug-in charging mode .......................................................................... 15

6.4.1 General ......................................................................................................... 15

6.4.2 Phase 1: vehicle preparation and set-up ........................................................ 15

6.4.3 Phase 2: vehicle measurement ...................................................................... 15

7 Assessment of measurement uncertainty ....................................................................... 16

8 Test report ..................................................................................................................... 16

9 Exposure assessment .................................................................................................... 16

Annex A (informative) Practical measurement advice ........................................................... 17

Annex B (informative) Maximum extents of measurement volumes inside the vehicle .......... 18

B.1 Motivation ............................................................................................................. 18

B.2 Anthropometrical information ................................................................................ 18

B.3 Maximum extents of measurement volumes .......................................................... 19

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SIST EN IEC 62764-1:2022
IEC 62764-1:2022 © IEC 2022 – 3 –
Annex C (informative) Measurement errors due to source proximity and probe

orientation ..................................................................................................................... 20

C.1 Background........................................................................................................... 20

C.2 Magnitude of proximity and orientation related errors ............................................ 20

C.3 Dipole source contributions to uncertainty parameters .......................................... 22

Annex D (informative) Uncertainty estimation ....................................................................... 24

D.1 General ................................................................................................................. 24

D.2 Uncertainty budget ................................................................................................ 24

Annex E (informative) Justification of measurement distances ............................................. 26

E.1 General ................................................................................................................. 26

E.2 Models and numerical methods ............................................................................. 26

E.2.1 Vehicle model and exposure scenarios .......................................................... 26

E.2.2 Human model ................................................................................................ 27

E.2.3 Computational method ................................................................................... 28

E.3 Computational results ........................................................................................... 28

E.4 Conclusions .......................................................................................................... 32

Annex F (informative) Magnetic field levels during acceleration and deceleration ................. 33

F.1 Example results .................................................................................................... 33

F.2 Test description .................................................................................................... 33

F.3 Conclusion ............................................................................................................ 33

Bibliography .......................................................................................................................... 35

Figure 1 – Example of test volumes taking account of all body parts for a left-hand

drive vehicle ......................................................................................................................... 11

Figure 2 – Plug-in charging cable positioning ........................................................................ 15

Figure A.1 – Disc spacer around two types of measurement probes ...................................... 17

Figure A.2 – Hemispherical spacer around two types of measurement probes ...................... 17

Figure B.1 – Summary of relevant anthropometrical data ...................................................... 18

Figure C.1 – Span (error bars) and mode (O) of error distributions for magnetic dipole ......... 21

Figure C.2 – Span (error bars) and mode (O) of error distributions for linear current ............. 21

Figure C.3 – Comparison of predicted error distribution percentiles (O) and fitted

models (lines) as a function of s (distance/radius) ................................................................. 23

Figure E.1 – Schematic explanation and geometry of the vehicle cabin ................................. 27

Figure E.2 – Schematic diagram of electrical motor .............................................................. 27

Figure E.3 – Definition of each part of the human body model ............................................... 28

Figure E.4 – Magnetic field distribution and measuring points ............................................... 29

Figure F.1 – Results obtained on a car with a full electric powertrain .................................... 34

Figure F.2 – Results obtained on a car with a parallel hybrid electric powertrain ................... 34

Table C.1 – Summary of CDF percentile model fitting parameters for dipole source .............. 22

Table C.2 – CDF percentiles for dipole source at s = 3,545 ................................................... 23

Table D.1 – Uncertainty budget example of the evaluation of magnetic field exposures ........ 25

Table E.1 – Comparison of the ratio of magnetic field and ICNIRP 1998 reference

level, and current density and basic restriction for the wire cable .......................................... 30

Table E.2 – Comparison of the ratio of magnetic field and ICNIRP 1998 reference

level, and current density and basic restriction for the electrical motor .................................. 30

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SIST EN IEC 62764-1:2022
– 4 – IEC 62764-1:2022 © IEC 2022
Table E.3 – Comparison of the ratio of magnetic field and ICNIRP 2010 reference

level, and internal electric field and basic restriction for the wire cable .................................. 31

Table E.4 – Comparison of the ratio of magnetic field and ICNIRP 2010 reference

level, and internal electric field and basic restriction for the electrical motor.......................... 31

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SIST EN IEC 62764-1:2022
IEC 62764-1:2022 © IEC 2022 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MEASUREMENT PROCEDURES OF MAGNETIC FIELD LEVELS
GENERATED BY ELECTRONIC AND ELECTRICAL EQUIPMENT IN THE
AUTOMOTIVE ENVIRONMENT WITH RESPECT TO HUMAN EXPOSURE –
Part 1: Low-frequency magnetic fields
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.

IEC 62764-1 has been prepared by IEC technical committee 106: Methods for the assessment

of electric, magnetic and electromagnetic fields associated with human exposure. It is an

International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
106/575/FDIS 106/579/RVD

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.
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SIST EN IEC 62764-1:2022
– 6 – IEC 62764-1:2022 © IEC 2022

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/standardsdev/publications.

A list of all parts in the IEC 62764 series, published under the general title Measurement

procedures of magnetic field levels generated by electronic and electrical equipment in the

automotive environment with respect to human exposure, 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 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.

IMPORTANT – The "colour inside" logo on the cover page of this document 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.

---------------------- Page: 12 ----------------------
SIST EN IEC 62764-1:2022
IEC 62764-1:2022 © IEC 2022 – 7 –
INTRODUCTION

This document specifies a methodology for determining the exposure to multiple magnetic field

sources for passenger cars and light commercial vehicles including standardized operating

conditions and measurement volumes and/or surfaces.
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SIST EN IEC 62764-1:2022
– 8 – IEC 62764-1:2022 © IEC 2022
MEASUREMENT PROCEDURES OF MAGNETIC FIELD LEVELS
GENERATED BY ELECTRONIC AND ELECTRICAL EQUIPMENT IN THE
AUTOMOTIVE ENVIRONMENT WITH RESPECT TO HUMAN EXPOSURE –
Part 1: Low-frequency magnetic fields
1 Scope

This part of IEC 62764 applies to the assessment of human exposure to low-frequency magnetic

fields generated by automotive vehicles. For plug-in vehicles, this includes the electric vehicle

supply equipment (EVSE) and associated cables provided by the car manufacturer. This

excludes the charging station.

This document specifies the measurement procedure for the evaluation of magnetic field

exposures generated by electronic and electrical equipment (excluding intentionally

transmitting radio frequency antennas) in selected automotive environments, for passenger

cars and commercial vehicles of categories M1 and N1 as defined in

ECE/TRANS/WP.29/78/Rev.3 [1] , with respect to human exposure. It provides standardized

operating conditions and defines recommended measurements to assess compliance with the

applicable exposure requirements.

This document covers the frequency range 1 Hz to 100 kHz and is applicable to any type of

engine and/or internal energy source.
This document does not include procedures for assessment of human exposure to

electromagnetic fields generated by wireless power transfer (WPT) equipment operating in

automotive environments. Exposure assessment procedures for WPT equipment are covered

by IEC PAS 63184 [2]. Magnetic field transients shorter than 200 ms occurring when electrical

functions are activated are not considered in this document.

Abnormal operation of the vehicle or its equipment is not taken into consideration.

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 61786-1, Measurement of DC magnetic, AC magnetic and AC electric fields from 1 Hz to

100 kHz with regard to exposure of human beings – Part 1: Requirements for measuring

instruments

IEC 62311:2019, Assessment of electronic and electrical equipment related to human exposure

restrictions for electromagnetic fields (0 Hz to 300 GHz)
____________
Numbers in square brackets refer to the Bibliography.
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SIST EN IEC 62764-1:2022
IEC 62764-1:2022 © IEC 2022 – 9 –
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1.1
applicable requirement

particular requirement regarding human exposure to low-frequency magnetic fields against

which the vehicle is to be assessed using the methods outlined in this document
Note 1 to entry: Examples of such requirements can be found in [3] to [9].
3.1.2
dynamometer

device allowing a vehicle to rotate all its wheels with a given torque while stationary

3.1.3
magnetic field exposure

specific metric that is used to quantify human exposure to low-frequency magnetic fields in the

applicable requirement
Note 1 to entry: Examples of such metrics can be found in [3] to [9].
3.1.4
powertrain
main system that generates power and delivers it to the road surface
3.2 Abbreviated terms
EV electric vehicle
EVSE electric vehicle supply equipment
HEV hybrid electric vehicle
ICEV internal combustion engine vehicle
SOC state of charge (indicated to the driver)
WPT wireless power transfer
4 Measurement procedure
4.1 Measurement phases

The measurement procedure is divided into four parts regarding the operational vehicle use:

1) vehicle in stationary mode;
2) vehicle in driving mode;
3) vehicle in dynamic mode;
4) vehicle in plug-in charging mode.
These four parts are described in detail in Clause 6.
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SIST EN IEC 62764-1:2022
– 10 – IEC 62764-1:2022 © IEC 2022
4.2 Measuring conditions

The measurements cover only sources of persistent magnetic field exposure. Continuous

occurring sources, or repetitive transient sources such as fan and wipers, are included.

Magnetic field transients shorter than 200 ms occurring when electrical functions are activated

are not considered in this document due the difficulty of performing reliable and repeatable

measurements.

NOTE The rotation of the tyres can produce low-frequency magnetic fields (typically below 50 Hz, depending on

the speed of the vehicle) in and surrounding the vehicle, due to the static magnetization of the tyres [10], [11]. This

can only contribute to measurements inside the vehicle (since no measurements are performed around the vehicle

in dynamic mode).

The measurements shall be performed in the vehicle's standard modes of operation, generating

reasonably foreseeable levels of magnetic field exposure in measuring volumes that are

representative of the occupant (Annex B) and bystander locations.
4.3 Test site

Measurements shall be performed in an area having ambient magnetic field exposure values of

less than 10 % of the values given i
...

SLOVENSKI STANDARD
oSIST prEN IEC 62764-1:2021
01-julij-2021

Merilni postopki nivojev magnetnih polj, ki jih generirata elektronska in električna

oprema v motornih vozilih, glede na izpostavljenost ljudi - 1. del: Nizkofrekvenčno

magnetno polje

Measurement procedures of magnetic field levels generated by electronic and electrical

equipment in the automotive environment with respect to human exposure - Part 1: Low

frequency magnetic fields

Merilni postopki nivojev magnetnih polj, ki jih generirajo električni aparati v železniškem

okolju glede na izpostavljenost človeka

Measurement procedures of magnetic field levels generated by electronic and electrical

apparatus in the railway environment with respect to human exposure
Ta slovenski standard je istoveten z: prEN IEC 62764-1:2021
ICS:
17.220.20 Merjenje električnih in Measurement of electrical
magnetnih veličin and magnetic quantities
oSIST prEN IEC 62764-1:2021 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN IEC 62764-1:2021
---------------------- Page: 2 ----------------------
oSIST prEN IEC 62764-1:2021
106/547/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62764-1 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2021-05-28 2021-08-20
SUPERSEDES DOCUMENTS:
106/531/NP, 106/540/RVN

IEC TC 106 : METHODS FOR THE ASSESSMENT OF ELECTRIC, MAGNETIC AND ELECTROMAGNETIC FIELDS ASSOCIATED

WITH HUMAN EXPOSURE
SECRETARIAT: SECRETARY:
Germany Mr Diego Cuartielles
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
TC 9,TC 27,SC 62A,SC 62B,TC 69,TC 77,TC
96,TC 100,TC 124,TC 125,CISPR
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY

SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING

This document is still under study and subject to change. It should not be used for reference purposes.

Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of

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TITLE:

Measurement procedures of magnetic field levels generated by electronic and electrical

equipment in the automotive environment with respect to human exposure - Part 1: Low

frequency magnetic fields
PROPOSED STABILITY DATE: 2025
NOTE FROM TC/SC OFFICERS:

The TC106 secretary thanks the NC for all comments received on the NWIP stage, these comments

will be worked together with CDV comments.

Copyright © 2021 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this

electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.

You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without

permission in writing from IEC.
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1 CONTENTS

2 CONTENTS ............................................................................................................................ 2

3 FOREWORD ........................................................................................................................... 4

4 INTRODUCTION ..................................................................................................................... 6

5 1 Scope .............................................................................................................................. 7

6 2 Normative references ...................................................................................................... 7

7 3 Terms, definitions and abbreviated terms ........................................................................ 7

8 3.1 Terms and definitions .............................................................................................. 7

9 3.2 Abbreviated terms ................................................................................................... 8

10 4 Measurement procedure .................................................................................................. 8

11 4.1 Measurement phases .............................................................................................. 8

12 4.2 Measuring conditions .............................................................................................. 8

13 4.3 Test site .................................................................................................................. 8

14 4.4 Vehicle set-up ......................................................................................................... 9

15 4.5 Measurement locations ........................................................................................... 9

16 4.5.1 General ........................................................................................................... 9

17 4.5.2 Inside the vehicle ............................................................................................. 9

18 4.5.3 Outside the vehicle ........................................................................................ 10

19 5 Measurement technique ................................................................................................ 10

20 5.1 Measuring equipment ............................................................................................ 10

21 5.2 Measurement of the magnetic field exposure ........................................................ 11

22 6 Measurement procedure ................................................................................................ 11

23 6.1 Vehicle in stationary mode .................................................................................... 11

24 6.1.1 General ......................................................................................................... 11

25 6.1.2 Flowchart ....................................................................................................... 11

26 6.1.3 Phase 1: vehicle preparation ......................................................................... 11

27 6.1.4 Phase 2: vehicle set-up ................................................................................. 11

28 6.1.5 Phase 3: vehicle measurement ...................................................................... 12

29 6.2 Vehicle in driving mode ......................................................................................... 12

30 6.2.1 General ......................................................................................................... 12

31 6.2.2 Flowchart ....................................................................................................... 12

32 6.2.3 Phase 1: vehicle preparation ......................................................................... 12

33 6.2.4 Phase 2: vehicle set-up ................................................................................. 12

34 6.2.5 Phase 3: vehicle measurement (at constant speed) ....................................... 12

35 6.2.6 Phase 4: optional measurements ................................................................... 13

36 6.3 Vehicle in acceleration mode ................................................................................ 13

37 6.3.1 General ......................................................................................................... 13

38 6.3.2 Flowchart ....................................................................................................... 13

39 6.3.3 Phase 1: vehicle preparation ......................................................................... 13

40 6.3.4 Phase 2: vehicle set-up ................................................................................. 13

41 6.3.5 Phase 3: vehicle measurement (in acceleration) ............................................ 13

42 6.4 Vehicle in plug-in charging mode .......................................................................... 14

43 6.4.1 General ......................................................................................................... 14

44 6.4.2 Flowchart ....................................................................................................... 14

45 6.4.3 Phase 1: vehicle preparation ......................................................................... 14

46 6.4.4 Phase 2: vehicle set-up ................................................................................. 15

47 6.4.5 Phase 3: vehicle measurement ...................................................................... 15

48 7 Test report ..................................................................................................................... 15

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49 8 Exposure assessment .................................................................................................... 16

50 Annex A (informative) Practical measurement advice ........................................................... 17

51 Annex B (informative) Maximum extents of measurement volumes inside the vehicle .......... 18

52 B.1 Motivation ............................................................................................................. 18

53 B.2 Anthropometrical information ................................................................................ 18

54 B.3 Maximum extents of measurement volumes .......................................................... 19

55 Annex C ................................................................................................................................ 20

56 C.1 Background ................................................................................................................... 20

57 C.2 Magnitude of proximity and orientation related errors .................................................... 20

58 C.3 Dipole source contributions to uncertainty parameters ................................................... 22

59 Annex D ................................................................................................................................ 24

60 D.1 General ......................................................................................................................... 24

61 The measurement procedure for the evaluation of the magnetic field levels in the

62 automotive environment includes some uncertainty factors that should be

63 considered. This annex provides an example of an uncertainty budget for vehicle

64 measurements. .............................................................................................................. 24

65 D.2 Uncertainty budget ......................................................................................................... 24

66 Bibliography .......................................................................................................................... 26

68 Figure 1 – Example of test volumes taking account of all body parts for a left-hand

69 drive vehicle ......................................................................................................................... 10

70 Figure 2 – Specific stationary mode set-up and test .............................................................. 11

71 Figure 3 – Specific driving mode set-up and test ................................................................... 12

72 Figure 4 – Specific acceleration mode set-up and test .......................................................... 13

73 Figure 5 – Specific plug-in charging mode set-up and test .................................................... 14

74 Figure 6 – Plug-in charging cable positioning ........................................................................ 15

75 Figure A.1 – Disc spacer around two types of measurement probes ...................................... 17

76 Figure A.2 – Hemispherical spacer around two types of measurement probes ...................... 17

77 Figure B.1 – Summary of relevant anthropometrical data ...................................................... 18

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80 INTERNATIONAL ELECTROTECHNICAL COMMISSION
81 ____________
83 MEASUREMENT PROCEDURES OF MAGNETIC FIELD LEVELS
84 GENERATED BY ELECTRONIC AND ELECTRICAL EQUIPMENT IN THE
85 AUTOMOTIVE ENVIRONMENT WITH RESPECT TO HUMAN EXPOSURE –
87 Part 1: Low frequency magnetic fields
89 FOREWORD

90 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

91 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international

92 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and

93 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,

94 Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their

95 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with

96 may participate in this preparatory work. International, governmental and non-governmental organizations liaising

97 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for

98 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.

99 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

100 consensus of opinion on the relevant subjects since each technical committee has representation from all

101 interested IEC National Committees.

102 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

103 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

104 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

105 misinterpretation by any end user.

106 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

107 transparently to the maximum extent possible in their national and regional publications. Any divergence between

108 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.

109 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

110 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

111 services carried out by independent certification bodies.

112 6) All users should ensure that they have the latest edition of this publication.

113 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

114 members of its technical committees and IEC National Committees for any personal injury, property damage or

115 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

116 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.

117 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

118 indispensable for the correct application of this publication.

119 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent

120 rights. IEC shall not be held responsible for identifying any or all such patent rights.

121 The main task of IEC technical committees is to prepare International Standards. In exceptional

122 circumstances, a technical committee may propose the publication of a Technical Specification

123 when

124 • the required support cannot be obtained for the publication of an International Standard,

125 despite repeated efforts, or

126 • the subject is still under technical development or where, for any other reason, there is the

127 future but no immediate possibility of an agreement on an International Standard.

128 Technical Specifications are subject to review within three years of publication to decide

129 whether they can be transformed into International Standards.

130 IEC TS 62764-1, which is a Technical Specification, has been prepared by IEC technical

131 committee 106: Methods for the assessment of electric, magnetic and electromagnetic fields

132 associated with human exposure.
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133 The text of this Technical Specification is based on the following documents:

Draft TS Report on voting
106/477/DTS 106/493/RVDTS
134

135 Full information on the voting for the approval of this Technical Specification can be found in

136 the report on voting indicated in the above table.

137 This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

138 A list of all parts in the IEC 62764 series, published under the general title Measurement

139 procedures of magnetic field levels generated by electronic and electrical equipment in the

140 automotive environment with respect to human exposure, can be found on the IEC website.

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

142 maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in the data

143 related to the specific publication. At this date, the publication will be
144 • reconfirmed,
145 • withdrawn,
146 • replaced by a revised edition, or
147 • amended.
148 A bilingual version of this publication may be issued at a later date.
149

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.

150
151
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152 INTRODUCTION

153 This document specifies a methodology for determining the exposure to multiple magnetic field

154 sources for passenger cars and light commercial vehicles including standardized operating

155 conditions and measurement volumes and/or surfaces.
156
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157 MEASUREMENT PROCEDURES OF MAGNETIC FIELD LEVELS
158 GENERATED BY ELECTRONIC AND ELECTRICAL EQUIPMENT IN THE
159 AUTOMOTIVE ENVIRONMENT WITH RESPECT TO HUMAN EXPOSURE –
160
161 Part 1: Low frequency magnetic fields
162
163 1 Scope

164 This part of IEC 62764 applies to the assessment of human exposure to low frequency magnetic

165 fields generated by automotive vehicles. For plug-in vehicles, this includes the electric vehicle

166 supply equipment (EVSE) and associated cables provided by the car manufacturer.

167 The scope of this document establishes the measurement procedure for the evaluation of

168 magnetic field levels generated by electronic and electrical equipment (excluding intentionally

169 transmitting equipment) in selected automotive environments, for passenger cars and

170 commercial vehicles of categories M1 and N1 as defined in ECE/TRANS/WP.29/78/Rev.3 [1] ,

171 with respect to human exposure. It provides standardized operating conditions and defines

172 recommended measurements to assess compliance to the applicable exposure requirements.

173 This document covers the frequency range 1 Hz to 400 kHz and is applicable to any type of

174 engine and/or internal energy source.

175 The scope of this document does not include procedures for assessment of human exposure to

176 electromagnetic fields generated by wireless power transfer (WPT) equipment operating in

177 automotive environments. Exposure assessment procedures for WPT equipment are covered

178 by IEC TR 62905 [2].

179 Abnormal operation of the vehicle or equipment under test is not taken into consideration.

180 2 Normative references

181 The following documents are referred to in the text in such a way that some or all of their content

182 constitutes requirements of this document. For dated references, only the edition cited applies.

183 For undated references, the latest edition of the referenced document (including any

184 amendments) applies.

185 IEC 61786-1:2013, Measurement of DC magnetic, AC magnetic and AC electric fields from 1 Hz

186 to 100 kHz with regard to exposure of human beings – Part 1: Requirements for measuring

187 instruments

188 IEC 62311:2019, Assessment of electronic and electrical equipment related to human exposure

189 restrictions for electromagnetic fields (0 Hz to 300 GHz)
190 3 Terms, definitions and abbreviated terms
191 3.1 Terms and definitions

192 For the purposes of this document, the following terms and definitions apply.

193 ISO and IEC maintain terminological databases for use in standardization at the following

194 addresses:
195 • IEC Electropedia: available at http://www.electropedia.org/
196 • ISO Online browsing platform: available at http://www.iso.org/obp
197 3.1.1
198 applicable requirement

199 particular requirement regarding human exposure to low-frequency magnetic fields against

200 which the vehicle under test is to be assessed using the methods outlined in this document

____________
Numbers in square brackets refer to the Bibliography.
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201 Note to entry: Examples of such requirements can be found in [3] to [10].
202 3.1.2
203 magnetic field exposure

204 specific metric that are used to quantify human exposure to low-frequency magnetic fields in

205 the applicable requirement
206 Note to entry: Examples of such metrics can be found in [3] to [10].
207 3.1.3
208 powertrain
209 main system that generates power and delivers it to the road surface
210 3.2 Abbreviated terms
211 EV electric vehicle
212 EVSE electric vehicle supply equipment
213 HEV hybrid electric vehicle, including
214 ICEV internal combustion engine vehicle
215 MHEV mild hybrid electric vehicle
216 SOC state of charge indicated to the driver
217 WPT wireless power transfer
218 4 Measurement procedure
219 4.1 Measurement phases

220 The measurement procedure is divided into four parts regarding the operational vehicle use:

221 1) vehicle in stationary mode;
222 2) vehicle in driving mode;
223 3) vehicle in acceleration mode;
224 4) vehicle in plug-in charging mode.
225 These four parts are described in detail in Clause 6.
226 4.2 Measuring conditions

227 The measurements cover only sources of persistent magnetic field exposure. Continuous

228 occurring sources, or repetitive transient sources such as fan, wipers are included. Transient

229 electrical functions of short duration activated occasionally by the driver, passengers or the

230 vehicle itself are not considered in this document, in particular the horn, the motorized mirror

231 and the door-lock motor.

232 NOTE The rotation of the tyres can produce low-frequency magnetic fields (typically below 50 Hz, depending on

233 the speed of the vehicle) in and surrounding the vehicle, due to the static magnetization of the tyres [11][12]. This

234 can only contribute to measurements inside the vehicle (since no measurements are to be performed around the

235 vehicle in dynamic mode).

236 The measurements are performed in the vehicle’s standard modes of operation, generating the

237 expected highest levels of magnetic field exposure in measuring volumes that are

238 representative of the occupant (Annex B) and bystander locations.
239 4.3 Test site

240 Measurements shall be performed in an area having ambient magnetic field exposure values of

241 less than 10 % of the values given in the requirements in the measurement volumes.

242 The ambient magnetic field exposure shall be measured with or without the vehicle under test,

243 but in conditions that are representative of the vehicle test. This measurement can be performed

244 before each test or periodically in accordance with the laboratory’s quality management

245 processes.

246 A dynamometer (or roller bench) may be used if it rotates all the driven wheels of the vehicle.

247 It shall be set to simulate the outdoor dynamics of the vehicle including at least its steady-state

248 torque in driving mode and its inertial mass during acceleration mode.
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249 If an outdoor track is used, the slope of the section of the track used for the tests shall be in

250 the range ±2 %.

251 NOTE In the case of a dynamometer, the ambient magnetic field exposure can depend on the torque and/or speed

252 of the dynamometer.
253 4.4 Vehicle set-up

254 The following configuration is recommended within the passenger compartment, where

255 practicable:

256 – all seats except the rearmost seats, if adjustable, centre-positioned horizontally and at the

257 lowest position vertically;

258 – the rearmost seats, if horizontally adjustable, in their rearmost position;

259 – the headrests in the fully-back position;

260 – all seat backs except for the rearmost seats, if adjustable, approximately 15° back from the

261 vertical;

262 – all seat backs of the rearmost seats, if adjustable, fully tilted backwards;

263 – the steering wheel centre-positioned vertically and horizontally.
264 4.5 Measurement locations
265 4.5.1 General

266 Measurements are performed in all regions of the vehicle that are accessible by the driver and

267 passengers, and in the immediate vicinity of the vehicle for bystanders. These include the driver

268 and passenger area (cabin), the cargo storage area, the engine and/or the electric powertrain

269 areas, and the areas around the outside of the vehicle.

270 The measurement distance between the surface of any part of the vehicle and the centre of the

271 probe shall be 0,20 m (see Annex A). This distance ensures an acceptable measurement

272 uncertainty for a 100 cm2 probe (see Annex C).
273 4.5.2 Inside the vehicle

274 Measurements shall be performed throughout the volumes accessible in normal vehicle use

275 cases by parts of the human body to which the applicable exposure requirements apply. These

276 volumes shall be defined by the car manufacturer depending on the car model under test. For

277 example, in the passenger compartment, occupants are assumed to be seated in positions

278 where restraint systems are provided. An example of test volumes taking account of all body

279 parts is illustrated in Figure 1.

280 Measurements are not required where the components are mounted (no components or parts

281 have to be removed to perform the measurements).
282
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283
284 Figure 1 – Example of test volumes taking account of all body parts
285 for a left-hand drive vehicle
286 In the example shown in Figure 1, the following apply.

287 – For individual seats, the occupants are represented by three volumes corresponding to

288 (A) the feet, (B) the legs, and (C) the trunk and head. For bench seats, the occupants are

289 represented by three common volumes: D, E and F.

290 – The volume G represents the arms and hands on the steering wheel (which can be on either

291 or both the left-hand side and right-hand side of the vehicle, or in the centre).

292 – Measurements can also have to be performed over the engine and/or the electric powertrain

293 in H and/or I only in stationary and charging modes and if people are permitted to access

294 these areas while the engine is running and/or the electric powertrain is active. The bottom

295 of H can be a smooth envelope above all contained components.

296 Volumes B, C, E and F could also take into account the positions of babies and infants.

297 NOTE These test volumes are examples defined with consideration of all body parts (including potential exposure

298 of extremities in volumes A, D, G, H and I), but it is possible that some standards or regulations do not apply to the

299 whole body.

300 Measurement in the areas of the driver's position can be achieved by different means including

301 the use of a dynamometer. Appropriate safety measures shall be employed to avoid accidents

302 due to operation of the dynamometer during measurements.
303 4.5.3 Outside the vehicle

304 Measurements shall be performed around the outside of the vehicle in all areas accessible to

305 parts of the human body identified in the applicable requirements.
306 5 Measurement technique
307 5.1 Measuring equipment

308 The measuring equipment shall include a probe covering the frequency range defined in

309 Clause 1. The probe shall comply with the requirements of IEC 6178
...

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