IEC_61000-4-33-2005.pdf

INTERNATIONAL STANDARD IEC61000-4-33 First edition2005-09 Electromagnetic compatibility(EMC)Part 4-33:Testing and measurement techniques Measurement methods for high-power transient parameters Reference number IEC 61000-4-33:2005(E)BASIC EMC PUBLICATION LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.Publication numbering As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series.For example,IEC 34-1 is now referred to as IEC 60034-1.Consolidated editions The IEC is now publishing consolidated versions of its publications.For example,edition numbers 1.0,1.1 and 1.2 refer,respectively,to the base publication,the base publication incorporating amendment 1 and the base publication incorporating amendments 1 and 2.Further information on IEC publications The technical content of IEC publications is kept under constant review by the IEC,thus ensuring that the content reflects current technology.Information relating to this publication,including its validity,is available in the IEC Catalogue of publications(see below)in addition to new editions,amendments and corrigenda.Information on the subjects under consideration and work in progress undertaken by the technical committee which has prepared this publication,as well as the list of publications issued,is also available from the following:IEC Web Site(www.iec.ch)Catalogue of IEC publications The on-line catalogue on the IEC web site(www.iec.ch/searchpub)enables you to search by a variety of criteria including text searches,technical committees and date of publication.On-line information is also available on recently issued publications,withdrawn and replaced publications,as well as corrigenda.IEC Just Published This summary of recently issued publications(www.iec.ch/online_news/justpub)is also available by email.Please contact the Customer Service Centre(see below)for further information.Customer Service Centre If you have any questions regarding this publication or need further assistance,please contact the Customer Service Centre:Email:custserviec.ch Tel:+41 22 919 02 11 Fax:+41 22 919 03 00 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.INTERNATIONAL STANDARD IEC61000-4-33 First edition2005-09 Electromagnetic compatibility(EMC)Part 4-33:Testing and measurement techniques Measurement methods for high-power transient parameters IEC 2005 Copyright-all rights reserved 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 the publisher.International Electrotechnical Commission,3,rue de Varemb,PO Box 131,CH-1211 Geneva 20,SwitzerlandTelephone:+41 22 919 02 11 Telefax:+41 22 919 03 00 E-mail:inmailiec.ch Web:www.iec.ch For price,see current cataloguePRICE CODE Commission Electrotechnique InternationaleInternational Electrotechnical Commission XB BASIC EMC PUBLICATION LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 61000-4-33?IEC:2005(E)CONTENTSFOREWORD.4INTRODUCTION.61Scope.72Normative references.73Terms and definitions.84Measurement of high-power transient responses.94.1Overall measurement concepts and requirements.94.2Representation of a measured response.124.3Measurement equipment.124.4Measurement procedures.275Measurement of low frequency responses.276Calibration procedures.286.1Calibration of the entire measurement channel.286.2Calibration of individual measurement channel components.316.3Approximate calibration techniques.37Annex A(normative)Methods of characterizing measured responses.40Annex B(informative)Characteristics of measurement sensors.45Annex C(normative)HPEM measurement procedures.59Annex D(informative)Two-port representations of measurement chain components.62Bibliography.69Figure 1 Illustration of a typical instrumentation chain for measuring high-powertransient responses.10Figure 2 Illustration of a balanced sensor and cable connecting to an unbalanced(coaxial)line where Iout+Iin=I1.16Figure 3 Examples of some simple baluns 4b.18Figure 4 A typical circuit for an in-line attenuator in the measurement chain.18Figure 5 Illustration of the typical attenuation of a nominal 20 dB attenuator for a50?system,as a function of frequency.19Figure 6 Typical circuit diagram for an in-line integrator.20Figure 7 Plot of the transfer function of the integrating circuit of Figure 6.20Figure 8 Illustration of the frequency dependent per-unit-length signal transmissionof a standard coaxial cable,and a semi-rigid coaxial line.21Figure 9 Illustration of sensor cable routing in regions not containing EM fields.24Figure 10 Treatment of sensor cables when located in a region containing EM fields.25Figure 11 Conforming cables to local system shielding topology.26Figure 12 Correct and incorrect methods of cable routin