IEC_61000-2-10-2021.pdf

IEC 61000-2-10 Edition 2.0 2021-11 INTERNATIONAL STANDARD Electromagnetic compatibility(EMC)Part 2-10:Environment Description of HEMP environment Conducted disturbance IEC 61000-2-10:2021-11(en)BASIC EMC PUBLICATION colourinside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2021 IEC,Geneva,Switzerland All rights reserved.Unless otherwise specified,no part of this publication may be reproduced or utilized in any form or by any means,electronic or mechanical,including photocopying and microfilm,without permission in writing from either IEC or IECs member National Committee in the country of the requester.If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,please contact the address below or your local IEC member National Committee for further information.IEC Central Office Tel.:+41 22 919 02 11 3,rue de Varemb infoiec.ch CH-1211 Geneva 20 www.iec.ch Switzerland About the IEC The International Electrotechnical Commission(IEC)is the leading global organization that prepares and publishes International Standards for all electrical,electronic and related technologies.About IEC publications The technical content of IEC publications is kept under constant review by the IEC.Please make sure that you have the latest edition,a corrigendum or an amendment might have been published.IEC publications search-webstore.iec.ch/advsearchform The advanced search enables to find IEC publications by a variety of criteria(reference number,text,technical committee,).It also gives information on projects,replaced and withdrawn publications.IEC Just Published-webstore.iec.ch/justpublished Stay up to date on all new IEC publications.Just Published details all new publications released.Available online and once a month by email.IEC Customer Service Centre-webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance,please contact the Customer Service Centre:salesiec.ch.IEC online collection-oc.iec.ch Discover our powerful search engine and read freely all the publications previews.With a subscription you will always have access to up to date content tailored to your needs.Electropedia-www.electropedia.org The worlds leading online dictionary on electrotechnology,containing more than 22 000 terminological entries in English and French,with equivalent terms in 18 additional languages.Also known as the International Electrotechnical Vocabulary(IEV)online.IEC 61000-2-10 Edition 2.0 2021-11 INTERNATIONAL STANDARD Electromagnetic compatibility(EMC)Part 2-10:Environment Description of HEMP environment Conducted disturbance INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 33.100.01 ISBN 978-2-8322-1050-6 BASIC EMC PUBLICATION Registered trademark of the International Electrotechnical Commission Warning!Make sure that you obtained this publication from an authorized distributor.colourinside 2 IEC 61000-2-10:2021 IEC 2021 CONTENTS FOREWORD.5 INTRODUCTION.7 1 Scope.8 2 Normative references.8 3 Terms and definitions.8 4 General.12 5 Description of HEMP environment,conducted parameters.13 5.1 Introductory remarks.13 5.2 Early-time HEMP external conducted environment.13 5.3 Intermediate-time HEMP external conducted environment.15 5.4 Late-time HEMP external conducted environment.15 5.5 Antenna currents.17 5.6 HEMP internal conducted environments.21 Annex A(informative)Discussion of early-time HEMP coupling for long lines.23 A.1 Elevated line coupling.23 A.2 Buried line coupling.24 Annex B(informative)Discussion of intermediate-time HEMP coupling for long lines.26 B.1 General.26 B.2 Elevated line coupling.26 B.3 Buried line coupling.26 Annex C(informative)Responses of simple linear antennas to the IEC early-time HEMP environment.28 C.1 Overview.28 C.2 IEC early-time HEMP environment.28 C.3 Evaluation of the antenna responses.31 C.3.1 General.31 C.3.2 Monopole antenna.31 C.3.3 Dipole antenna.32 C.4 Calculated results.33 C.5 Summary of results.34 Annex D(informative)Measured cable currents inside telephone buildings.43 Annex E(informative)Time waveform description for the responses of simple linear antennas to the early-time HEMP environment.44 E.1 General.44 E.2 Description of the recommended waveform.44 E.3 Procedure for determining the test waveform.46 Bibliography.47 Figure 1 Geometry for the definition of polarization and of the angles of elevation and azimuth .9 Figure 2 Geometry for the definition of the plane wave.10 Figure 3 Geomagnetic dip angle.11 Figure 4 Three-phase line and equivalent circuit for computing late-time HEMP conducted current.16 IEC 61000-2-10:2021 IEC 2021 3 Figure 5 Centre-loaded dipole antenna of length l and radius a,excited by an incident early-time HEMP field.18 Figure A.1 Variation of peak coupled cable current versus local geomagnetic dip angle.23 Figure C.1 Illustration of the incident HEMP field.29 Figure C.2 HEMP tangent radius Rt defining the illuminated region,shown as a function of burst height(HOB).29