IEC 62822-3-2017 Electric welding equipment - Assessment of restrictions related to human exposure to electromagnetic fields (0 Hz to 300 GHz) - Part 3 Resistan.pdf

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1、 IEC 62822-3 Edition 1.0 2017-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Electric welding equipment Assessment of restrictions related to human exposure to electromagnetic fields (0 Hz to 300 GHz) Part 3: Resistance welding equipment Matriels de soudage lectrique valuation des restrictions relat

2、ives lexposition humaine aux champs lectromagntiques (0 Hz 300 GHz) Partie 3: Matriels de soudage par rsistance IEC 62822-3:2017-09(en-fr) colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2017 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this pu

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20、INTERNATIONALE Electric welding equipment Assessment of restrictions related to human exposure to electromagnetic fields (0 Hz to 300 GHz) Part 3: Resistance welding equipment Matriels de soudage lectrique valuation des restrictions relatives lexposition humaine aux champs lectromagntiques (0 Hz 300

21、 GHz) Partie 3: Matriels de soudage par rsistance INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 25.160.30 ISBN 978-2-8322-4814-0 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internation

22、ale 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 agr. colour inside 2 IEC 62822-3:2017 IEC 2017 CONTENTS FOREWORD . 5 1 Scope 7 2 Normative references 7 3 Terms, defin

23、itions, quantities, units and constants . 8 3.1 Terms and definitions 8 3.2 Quantities and units 9 3.3 Constants . 10 4 Requirements 10 5 Coupling coefficients . 10 5.1 General . 10 5.2 Conductive disks . 12 5.3 Anatomical body models for numerical calculations . 14 6 Source model 14 6.1 General . 1

24、4 6.2 Single cable 15 6.3 Parallel cables 15 6.4 Rectangular loop . 16 7 Assessment methods . 18 7.1 General . 18 7.2 General considerations . 18 7.2.1 Time averaging 18 7.2.2 Spatial averaging . 18 7.2.3 Frequency range limitations . 18 7.2.4 Measurement instruments 19 7.2.5 Uncertainty of assessme

25、nt . 19 7.3 Equipment with sinusoidal welding current 19 7.4 Equipment with pulsed or non-sinusoidal welding current 20 7.4.1 General . 20 7.4.2 Derivation of the weighting function from limits for field quantities . 20 7.4.3 Application of the weighted peak method in the frequency domain . 22 7.4.4

26、 Application of the weighted peak method in the time domain . 23 7.5 Method based on measuring of external field levels 23 7.5.1 General . 23 7.5.2 Measurement equipment . 23 7.5.3 Spatial averaging . 24 7.5.4 Exposure of the head . 24 7.5.5 Exposure of the trunk 25 7.5.6 Exposure of the limbs 25 7.

27、6 Assessment procedure 26 7.6.1 General . 26 7.6.2 Power-source 27 7.6.3 Electrode-assembly . 27 7.6.4 Welding-system . 27 8 EMF data sheet and assessment report . 28 8.1 General . 28 8.2 EMF datasheet of components 28 IEC 62822-3:2017 IEC 2017 3 8.2.1 Power sources . 28 8.2.2 Electrode assemblies .

28、 29 8.2.3 Other components . 29 Annex A (informative) Example of the weighted peak method in the time domain . 30 A.1 General . 30 A.2 Power source 30 A.2.1 General . 30 A.2.2 Applied limits . 30 A.2.3 Assessment of the electrode-assembly 32 A.2.4 Datasheets 33 Annex B (informative) Example of the w

29、eighted peak method in the frequency domain 37 B.1 General . 37 B.2 Power source 37 B.2.1 General . 37 B.2.2 Applied limits . 38 B.2.3 Assessment of the electrode-assembly 40 B.2.4 Datasheets 41 Annex C (informative) IEC 62822-3 for users of IEC 62822-2 . 45 Annex D (informative) Coupling coefficien

30、ts for common arrangements . 47 D.1 Single wire 47 D.2 Example of standardized loop configurations 48 D.2.1 0,5 m 0,5 m 48 D.2.2 1,0 m 1,0 m 50 D.2.3 1,0 m 1,5 m 52 Annex E (informative) Conservative approximation of coupling coefficients for rectangular loops 54 E.1 General . 54 E.2 XY-plane . 54 E

31、.3 Z-direction 55 E.4 Correlation factors 56 Annex F (informative) Example EMF datasheets 57 F.1 Example datasheet Welding system . 57 F.2 Example datasheet Power source 59 F.3 Example datasheet Electrode assembly . 60 Bibliography 61 Figure 1 Example of a reference system 11 Figure 2 Conducting dis

32、k in a uniform, time variant magnetic flux density . 12 Figure 3 Electrical conductivity for homogeneous body models 13 Figure 4 Example of the placement of the conductive disks. 13 Figure 5 Source model Single cable 15 Figure 6 Assessment configuration Single cable . 15 Figure 7 Source model Parall

33、el cables 15 Figure 8 Assessment Configuration Parallel Cables 16 Figure 9 Rectangular loop configuration . 16 Figure 10 Assessment distances for the loop configuration . 17 Figure 11 Piecewise linear and approximated limit amplitudes . 21 4 IEC 62822-3:2017 IEC 2017 Figure 12 Piecewise linear and a

34、pproximated summation function phase angles 22 Figure 13 Field measurement at head position . 24 Figure 14 Field measurement at trunk position . 25 Figure 15 Field measurement at limb positions, hand and thigh . 26 Figure 16 Assessment of a complete welding system . 27 Figure 17 Typical component ba

35、sed assessment . 27 Figure A.1 Current waveform . 30 Figure A.2 Combined ELVs for the head 1 . 31 Figure A.3 Unity-coupling waveform . 31 Figure A.4 Geometry of the electrode assembly . 32 Figure A.5 Datasheet of the power source . 33 Figure A.6 Datasheet of the electrode assembly 34 Figure A.7 Data

36、sheet of the welding system 35 Figure A.8 Datasheet of the welding system 36 Figure B.1 Current waveform . 37 Figure B.2 Spectrum of the current waveform 38 Figure B.3 Combined ELVs for the head 1 . 39 Figure B.4 Unity-coupling waveform . 39 Figure B.5 Geometry of the electrode assembly . 40 Figure

37、B.6 Datasheet of the power source . 41 Figure B.7 Datasheet of the electrode assembly 42 Figure B.8 Datasheet of the welding system 43 Figure B.9 Datasheet of the welding system 44 Figure E.1 Geometry of the electrode assembly XY-plane 54 Figure E.2 Geometry of the electrode assembly Z-direction . 5

38、5 Figure F.1 Example datasheet Welding system . 57 Figure F.2 Example datasheet Power source 59 Figure F.3 Example datasheet Power source 60 Table 1 Standardized distances . 11 Table 2 Radii for the 2D disk model . 13 Table D.1 Coupling coefficients Single wire . 47 Table D.2 Coupling coefficients X

39、Y-plane Loop 0,5 m 0,5 m 48 Table D.3 Coupling coefficients XY-plane Loop 0,5 m 0,5 m 49 Table D.4 Coupling coefficients XY-plane Loop 1,0 m 1,0 m 50 Table D.5 Coupling coefficients Z-plane Loop 1,0 m 1,0 m . 51 Table D.6 Coupling coefficients XY-plane Loop 1,0 m 1,5 m 52 Table D.7 Coupling coeffici

40、ents Z-plane Loop 1,0 m 1,5 m . 53 Table E.1 Correlation factors XY . 56 Table E.2 Correlation factors Z . 56 IEC 62822-3:2017 IEC 2017 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTRIC WELDING EQUIPMENT ASSESSMENT OF RESTRICTIONS RELATED TO HUMAN EXPOSURE TO ELECTROMAGNETIC FIELDS (0 Hz TO 300

41、 GHz) Part 3: Resistance welding equipment 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

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