IEC 61000-4-24-2015 Electromagnetic compatibility (EMC) - Part 4-24 Testing and measurement techniques - Test methods for protective devices for HEMP conducted .pdf

1、 IEC 61000-4-24 Edition 2.0 2015-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Electromagnetic compatibility (EMC) Part 4-24: Testing and measurement techniques Test methods for protective devices for HEMP conducted disturbance Compatibilit lectromagntique (CEM) Partie 4-24: Techniques dessai et de

2、 mesure Mthodes dessai pour les dispositifs de protection pour perturbations conduites IEMN-HA IEC 61000-4-24:2015-11(en-fr) BASIC EMC PUBLICATION PUBLICATION FONDAMENTALE EN CEM colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2015 IEC, Geneva, Switzerland All rights reserved. Unless

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20、us: csciec.ch. IEC 61000-4-24 Edition 2.0 2015-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Electromagnetic compatibility (EMC) Part 4-24: Testing and measurement techniques Test methods for protective devices for HEMP conducted disturbance Compatibilit lectromagntique (CEM) Partie 4-24: Technique

21、s dessai et de mesure Mthodes dessai pour les dispositifs de protection pour perturbations conduites IEMN-HA INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 33.100 ISBN 978-2-8322-2971-2 BASIC EMC PUBLICATION PUBLICATION FONDAMENTALE EN CEM Registered tradema

22、rk of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 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. col

23、our inside 2 IEC 61000-4-24:2015 IEC 2015 CONTENTS FOREWORD . 5 INTRODUCTION . 7 1 Scope 8 2 Normative references 8 3 Terms, definitions and abbreviated terms 8 3.1 Terms and definitions 8 3.2 Abbreviated terms . 10 4 Test methods for protective devices (excluding filter) for conducted disturbance .

24、 10 4.1 General . 10 4.2 Test setup . 11 4.3 Pulse generator 11 4.4 Launching line 11 4.5 Test fixtures 12 4.5.1 General . 12 4.5.2 Type A fixtures 12 4.5.3 Type B fixtures 12 4.6 Termination . 13 4.7 Oscilloscope . 14 4.8 Test procedure 14 4.8.1 Adjustment of the pulse generator . 14 4.8.2 Verifica

25、tion procedures 14 4.8.3 Test . 15 4.8.4 Final examination of the DUT . 15 4.9 Referring to this standard 15 5 Measurement method for HEMP combination filters . 16 5.1 Verification setup 16 5.2 Measurement setup 16 5.3 Measurement instrument . 17 5.3.1 Pulse generators . 17 5.3.2 Oscilloscope 19 5.3

26、3 Current sensors . 19 5.3.4 Test loads 19 5.4 Test modes required . 19 5.5 Measurement procedure . 21 5.5.1 General . 21 5.5.2 Verification of pulses . 21 5.5.3 Measurement procedure 21 5.6 Evaluation of test results . 22 5.7 Test report 23 Annex A (informative) Investigation for the establishment

27、 of a measurement setup 24 A.1 General . 24 A.2 Variation of the cable connected for the measurement of short-circuit current . 24 A.3 Variation of the length of the cable L2 connected for the measurement of residual current . 27 A.4 Variation of load impedance and cable length for connection betwee

28、n load and ground . 31 IEC 61000-4-24:2015 IEC 2015 3 A.5 Variation of the cable length between load and ground . 33 Annex B (informative) Test method for the quantitative determination of the direct response behaviours of a coaxial surge protector . 36 Bibliography 40 Figure 1 Test setup for testin

29、g protective devices 11 Figure 2 Example of a type B test fixture (universal) 14 Figure 3 Typical setup for verification of the pulse test level 16 Figure 4 Example of test setup using one or two shielded enclosures 17 Figure 5 Example of test setup using a shielded enclosure 17 Figure 6 Double expo

30、nential waveform 19 Figure 7 Example of wiring setup of a single line DUT 20 Figure 8 Example of wiring setup for a mutually coupled multi-line DUT . 20 Figure A.1 Setup for calibration 24 Figure A.2 Peak current calibration results with 9 mm 2cables: 1 000 A 4 % . 25 Figure A.3 Rise time calibratio

31、n results with 9 mm 2cables 26 Figure A.4 FWHM calibration results with 9 mm 2cables 26 Figure A.5 Peak current calibration results with 4 mm 2cables: 1 000 A 8 % . 26 Figure A.6 Rise time calibration results with 4 mm 2cables 27 Figure A.7 FWHM calibration results with 4 mm 2cables 27 Figure A.8 Me

32、asurement setup for residual current 28 Figure A.9 Measurement result of peak current with variation of measurement cable L2 29 Figure A.10 Measurement result of peak rate of rise with variation of measurement cable L2 29 Figure A.11 Measurement result of root action with variation of measurement ca

33、ble L2 . 29 Figure A.12 Variation of the position of current sensor 2 on the measurement cable L2 . 30 Figure A.13 Peak current with variation of cable L2 and at different positions 30 Figure A.14 Peak rate of rise with variation of cable L2 and at different positions 31 Figure A.15 Root action with

34、 variation of cable L2 and at different positions 31 Figure A.16 Measurement result of peak current with variation of load impedance. 32 Figure A.17 Measurement result of peak rate of rise with variation of load impedance . 32 Figure A.18 Measurement result of root action with variation of load impe

35、dance. . 33 Figure A.19 Variation of the length of cable L3 connected between load and ground plane 33 Figure A.20 Measurement result of peak current with variation of measurement cable L3 34 Figure A.21 Measurement result of peak rate of rise with variation of measurement cable L3 34 Figure A.22 Me

36、asurement result of root action with variation of measurement cable L3 . 35 Figure B.1 Test setup with a power divider for testing protective devices . 36 Figure B.2 Waves propagating along the branches 37 Figure B.3 Simplified test setup for testing protective devices 38 Table 1 Overview of conduct

37、ed early-time HEMP (CEP) test requirements defined in other specifications . 18 4 IEC 61000-4-24:2015 IEC 2015 Table 2 Overview of conducted intermediate-time HEMP (CIP) test requirements defined in other specifications . 18 Table 3 Test mode and DUT wiring setup . 21 Table 4 Performance criteria of

38、 filter against early-time HEMP AC power port with nominal load 2 . 22 Table 5 Performance criteria of filter against early-time HEMP DC power port with nominal load 2 . 22 Table 6 Performance criteria of filter against early-time HEMP Signal, data and control port with nominal load 50 . 23 Table A.

39、1 Measurement results for the waveform calibration of short-circuit current . 25 Table A.2 Measurement results for variation of the cable length at the measurement points 28 Table A.3 Measurement results for variation of the load impedance . 32 Table A.4 Measurement results for variation of the cabl

40、e length between load and ground 34 IEC 61000-4-24:2015 IEC 2015 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTROMAGNETIC COMPATIBILITY (EMC) Part 4-24: Testing and measurement techniques Test methods for protective devices for HEMP conducted disturbance FOREWORD 1) The International Electrotec

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