prEN IEC 62764-1:2021
(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
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
Merilni postopki 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
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 poljeMeasurement 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 fieldsMerilni postopki nivojev magnetnih polj, ki jih generirajo električni aparati v železniškem
okolju glede na izpostavljenost človekaMeasurement procedures of magnetic field levels generated by electronic and electrical
apparatus in the railway environment with respect to human exposureTa 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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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 EXPOSURESECRETARIAT: 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 fieldsPROPOSED 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
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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 be63 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,
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95 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
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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
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111 services carried out by independent certification bodies.112 6) All users should ensure that they have the latest edition of this publication.
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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 when124 • the required support cannot be obtained for the publication of an International Standard,
125 despite repeated efforts, or126 • 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
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133 The text of this Technical Specification is based on the following documents:
Draft TS Report on voting106/477/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 be144 • 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.
150151
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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 references181 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 instruments188 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 requirement206 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.---------------------- Page: 10 ----------------------
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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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