SIST EN IEC 62764-1:2022
(Main)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 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
Standards Content (Sample)
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.
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SIST EN IEC 62764-1:2022
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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
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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
2
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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)
3
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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
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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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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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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
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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.
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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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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
1
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)
____________
1
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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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.
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oSIST prEN IEC 62764-1:2021
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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
which they are aware and to provide supporting documentation.
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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oSIST prEN IEC 62764-1:2021
IEC 62764-1/ED1 © IEC 2021 – 2 – 106/547/CDV
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
67
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
78
79
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80 INTERNATIONAL ELECTROTECHNICAL COMMISSION
81 ____________
82
83 MEASUREMENT PROCEDURES OF MAGNETIC FIELD LEVELS
84 GENERATED BY ELECTRONIC AND ELECTRICAL EQUIPMENT IN THE
85 AUTOMOTIVE ENVIRONMENT WITH RESPECT TO HUMAN EXPOSURE –
86
87 Part 1: Low frequency magnetic fields
88
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
1
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
____________
1
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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