1、 IEC 61196-1-108 Edition 2.0 2011-11 INTERNATIONAL STANDARD Coaxial communication cables Part 1-108:Electrical test methods Test for characteristic impedance,phase and group delay,electrical length and propagation velocity IEC 61196-1-108:2011(E)colourinsideCopyrighted material licensed to BR Demo b
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9、 this publication or need further assistance,please visit the Customer Service Centre FAQ or contact us:Email:csciec.ch Tel.:+41 22 919 02 11 Fax:+41 22 919 03 00 Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-28-2014 by James Madison.No further reprod
10、uction or distribution is permitted.Uncontrolled when printed.IEC 61196-1-108 Edition 2.0 2011-11 INTERNATIONAL STANDARD Coaxial communication cables Part 1-108:Electrical test methods Test for characteristic impedance,phase and group delay,electrical length and propagation velocity INTERNATIONAL EL
11、ECTROTECHNICAL COMMISSION N ICS 33.120.10 PRICE CODE ISBN 978-2-88912-786-3 Registered trademark of the International Electrotechnical Commission colourinsideCopyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-28-2014 by James Madison.No further reproductio
12、n or distribution is permitted.Uncontrolled when printed.2 61196-1-108 IEC:2011(E)CONTENTS FOREWORD.3 1 Scope.5 2 Normative references.5 3 Terms and definitions.5 4 Parameters.5 5 Test method.6 5.1 Equipment.6 5.2 Test sample.6 5.3 Procedure.7 6 Expression of test results.7 6.1 Phase constant.7 6.2
13、Phase and group delay.8 6.3 Velocity of propagation.8 6.4 Electrical length.8 6.5 Characteristic impedance.9 7 Test report.9 8 Requirements.9 Annex A(normative)Phase dispersion measurement of coaxial cables.10 Bibliography.14 Figure 1 Phase shift expanded.7 Figure A.1 Phase dispersion of 1/2 cable w
14、ith deeply corrugated outer conductor.13 Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.61196-1-108 IEC:2011(E)3 INTERNATIONAL ELECTROTECHNICAL COMM
15、ISSION _ COAXIAL COMMUNICATION CABLES Part 1-108:Electrical test methods Test for characteristic impedance,phase and group delay,electrical length and propagation velocity FOREWORD 1)The International Electrotechnical Commission(IEC)is a worldwide organization for standardization comprising all nati
16、onal electrotechnical committees(IEC National Committees).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
