1、 TECHNICAL REPORT IEC TR 62102 Second edition2005-05 Electrical safety Classification of interfaces for equipment to be connected to information and communications technology networks Reference number IEC/TR 62102:2005(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ON
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8、l:+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.TECHNICAL REPORT IECTR 62102 Second edition2005-05 Electrical safety Classification of interfaces for equipment to be connected to information and
9、communications technology networks PRICE CODE 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 Elec
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11、N Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 TR 62102 IEC:2005(E)CONTENTS FOREWORD.3 INTRODUCTION.5 1 Scope.6 2 Normative references.6 3 Terms and definitions.7 3.1 Definitions from IEC 60950-1.7 3.2 Definitions from IEC 60950-21.9 3.3 Additional
12、 definitions for this document.9 3.4 Abbreviations.10 4 Reference configuration.10 5 Safety categories of interfaces provided for connection to an information and communications technology network.13 5.1 SELV circuits.13 5.2 TNV circuits.13 5.3 User information.13 5.4 RFT circuits.13 6 Phenomena aff
13、ecting the safety of interface ports.13 6.1 Network Environment 0.14 6.2 Network Environment 1.14 7 Determination of circuit type.15 Annex A(informative)Consideration of interface phenomenon.16 Annex B(informative)Worked examples of certain network interfaces.19 Annex C(informative)Conditions for Ne
14、twork Environment 0.22 Annex D(informative)Voltage ranges of SELV circuits and TNV circuits.23 Bibliography.24 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.TR 62102 IEC:2005(E)3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTRICAL
15、 SAFETY CLASSIFICATION OF INTERFACES FOR EQUIPMENT TO BE CONNECTED TO INFORMATION AND COMMUNICATIONS TECHNOLOGY NETWORKS FOREWORD 1)The International Electrotechnical Commission(IEC)is a worldwide organization for standardization comprising all national electrotechnical committees(IEC National Commi
16、ttees).The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields.To this end and in addition to other activities,IEC publishes International Standards,Technical Specifications,Technical Reports,Publicly Available Specifications(PAS)and Guides(hereafter referred to as“IEC Publication(s)”).Their preparation is entrusted to technical committees;any IEC National Committee interested in the subject dealt with may par
