BS EN IEC 62764-1:2022 – TC:2023 Edition
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Tracked Changes. Measurement procedures of magnetic field levels generated by electronic and electrical equipment in the automotive environment with respect to human exposure – Low-frequency magnetic fields
Published By | Publication Date | Number of Pages |
BSI | 2023 | 92 |
IEC 62764-1:2022 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. 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.
PDF Catalog
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55 | Annex ZA (normative)Normative references to international publicationswith their corresponding European publications |
56 | Blank Page |
57 | English CONTENTS |
60 | FOREWORD |
62 | INTRODUCTION |
63 | 1 Scope 2 Normative references |
64 | 3 Terms, definitions and abbreviated terms 3.1 Terms and definitions 3.2 Abbreviated terms 4 Measurement procedure 4.1 Measurement phases |
65 | 4.2 Measuring conditions 4.3 Test site 4.4 Vehicle set-up 4.5 Measurement locations 4.5.1 General |
66 | 4.5.2 Inside the vehicle Figures Figure 1 – Example of test volumes taking account of all body parts for a left-hand drive vehicle |
67 | 4.5.3 Outside the vehicle 5 Measurement technique 5.1 Measuring equipment 5.2 Measurement of the magnetic field exposure 6 Measurement procedure 6.1 Vehicle in stationary mode 6.1.1 General 6.1.2 Phase 1: vehicle preparation and set-up |
68 | 6.1.3 Phase 2: vehicle measurement 6.2 Vehicle in driving mode 6.2.1 General 6.2.2 Phase 1: vehicle preparation and set-up 6.2.3 Phase 2: vehicle measurement (at constant speed) |
69 | 6.2.4 Phase 3: additional measurements 6.3 Vehicle in dynamic mode 6.3.1 General 6.3.2 Phase 1: vehicle preparation and set-up 6.3.3 Phase 2: vehicle measurement |
70 | 6.4 Vehicle in plug-in charging mode 6.4.1 General 6.4.2 Phase 1: vehicle preparation and set-up 6.4.3 Phase 2: vehicle measurement Figure 2 – Plug-in charging cable positioning |
71 | 7 Assessment of measurement uncertainty 8 Test report 9 Exposure assessment |
72 | Annexes Annex A (informative) Practical measurement advice Figure A.1 – Disc spacer around two types of measurement probes Figure A.2 – Hemispherical spacer around two types of measurement probes |
73 | Annex B (informative) Maximum extents of measurement volumes inside the vehicle B.1 Motivation B.2 Anthropometrical information Figure B.1 – Summary of relevant anthropometrical data |
74 | B.3 Maximum extents of measurement volumes |
75 | Annex C (informative) Measurement errors due to source proximity and probe orientation C.1 Background C.2 Magnitude of proximity and orientation related errors |
76 | Figure C.1 – Span (error bars) and mode (O) of error distributions for magnetic dipole Figure C.2 – Span (error bars) and mode (O) of error distributions for linear current |
77 | C.3 Dipole source contributions to uncertainty parameters Tables Table C.1 – Summary of CDF percentile model fitting parameters for dipole source |
78 | Figure C.3 – Comparison of predicted error distribution percentiles (O) and fitted models (lines) as a function of s (distance/radius) Table C.2 – CDF percentiles for dipole source at s = 3,545 |
79 | Annex D (informative) Uncertainty estimation D.1 General D.2 Uncertainty budget |
80 | Table D.1 – Uncertainty budget example of the evaluation of magnetic field exposures |
81 | Annex E (informative) Justification of measurement distances E.1 General E.2 Models and numerical methods E.2.1 Vehicle model and exposure scenarios |
82 | E.2.2 Human model Figure E.1 – Schematic explanation and geometry of the vehicle cabin Figure E.2 – Schematic diagram of electrical motor |
83 | E.2.3 Computational method E.3 Computational results Figure E.3 – Definition of each part of the human body model |
84 | Figure E.4 – Magnetic field distribution and measuring points |
85 | 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 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 |
86 | 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 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 |
87 | E.4 Conclusions |
88 | Annex F (informative) Magnetic field levels during acceleration and deceleration F.1 Example results F.2 Test description F.3 Conclusion |
89 | Figure F.1 – Results obtained on a car with a full electric powertrain Figure F.2 – Results obtained on a car with a parallel hybrid electric powertrain |
90 | Bibliography |