1、 Amendment 1 Industrial,scientific and medical(ISM)radio-frequency equipment Electromagnetic disturbance characteristics Limits and methods of measurement For price,see current catalogue IEC 2004 Copyright-all rights reserved No part of this publication may be reproduced or utilized in any form or b
2、y 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
3、.iec.ch INTERNATIONAL ELECTROTECHNICAL COMMISSION CISPR11 2003AMENDMENT 12004-05 C Commission Electrotechnique InternationaleInternational Electrotechnical Commission PRICE CODE This English-language version is derived from the original bilingual publication by leaving out all French-language pages.
4、Missing page numbers correspond to the French-language pages.INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE CISPR 11 Amend.1 IEC:2004 3 FOREWORD This amendment has been prepared by CISPR subcommittee B:Interference relating to industrial,scientific and medical radio-frequency apparatus,to oth
5、er(heavy)industrial equipment,to overhead lines,to high voltage equipment and to electric traction.The text of this amendment is based on the following documents:FDIS Report on voting CISPR/B/324/FDIS CISPR/B/327/RVD Full information on the voting for the approval of this amendment can be found in t
6、he report on voting indicated in the above table.The committee has decided that the contents of the base publication and its amendments will remain unchanged until 2006.At this date,the publication will be reconfirmed;withdrawn;replaced by a revised edition,or amended._ Page 13 1.1 Scope and object
7、Replace the penultimate paragraph by the following new text:Requirements for ISM lighting apparatus and UV irradiators operating at frequencies within the ISM frequency bands defined by the ITU Radio Regulations are contained in this standard.Page 35 5.2.3 Frequency band 1 GHz to 18 GHz Group 2 ISM
8、equipment Delete the sub-header“Class A equipment”,the sentence reading“Limits are under consideration”,and the sub-header“Class B equipment”.Page 37 Insert,before Table 6,the following new paragraph:For microwave-powered UV irradiators,the limits specified in Table 6 apply.Replace the existing Tabl
9、e 6 by the following new Table 6 such that it addresses class A and class B ISM equipment:CISPR 11 Amend.1 IEC:2004 5 Table 6 Electromagnetic radiation disturbance peak limits for group 2,class A and class B ISM equipment producing CW type disturbances and operating at frequencies above 400 MHz Freq
10、uency band Field strength at a measurement distance of 3 m dB(V/m)1 GHz to 18 GHz class A class B Within harmonic frequency bands 82 a 70 Outside harmonic frequency bands 70 70 NOTE 1 For the protection of radio services,competent national authorities may require lower limits.NOTE 2 Peak measurement
11、s with a resolution bandwidth of 1 MHz and a video signal bandwidth higher than or equal to 1 MHz.NOTE 3 In this table,“harmonic frequency bands”means the frequency bands which are multiples of the ISM bands allocated above 1 GHz.a At the upper and lower edge frequency of harmonic frequency bands,th
12、e lower limit of 70 dB(V/m)applies.Page 71 Annex A Examples of equipment classification Add,under group 2,as the first item under“General”,the following new text:Microwave-powered UV irradiating apparatus _ ISBN 2-8318-7499-8-:HSMINB=Y:ICS 33.100.10 Typeset and printed by the IEC Central Office GENEVA,SWITZERLAND
