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1、 IEC 61156-5 Edition 2.0 2009-02 INTERNATIONAL STANDARD Multicore and symmetrical pair/quad cables for digital communications Part 5: Symmetrical pair/quad cables with transmission characteristics up to 1 000 MHz-horizontal floor wiring Sectional specification IEC 61156-5:2009(E) Copyright Internati
2、onal Electrotechnical Commission Provided by IHS under license with IECLicensee=HP Monitoring/1111111164 Not for Resale, 04/07/2009 19:09:24 MDTNo reproduction or networking permitted without license from IHS -,-,- THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2009 IEC, Geneva, Switzerland All r
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5、l: inmailiec.ch Web: www.iec.ch 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 public
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10、otechnical Commission Provided by IHS under license with IECLicensee=HP Monitoring/1111111164 Not for Resale, 04/07/2009 19:09:24 MDTNo reproduction or networking permitted without license from IHS -,-,- IEC 61156-5 Edition 2.0 2009-02 INTERNATIONAL STANDARD Multicore and symmetrical pair/quad cable
11、s for digital communications Part 5: Symmetrical pair/quad cables with transmission characteristics up to 1 000 MHz-horizontal floor wiring Sectional specification INTERNATIONAL ELECTROTECHNICAL COMMISSION T ICS 33.120.20 PRICE CODE ISBN 2-8318-1032-2 Registered trademark of the International Electr
12、otechnical Commission Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=HP Monitoring/1111111164 Not for Resale, 04/07/2009 19:09:24 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 61156-5 IEC:2009(E) CONTENTS FOREWORD.5 1
13、Scope.7 2 Normative references .7 3 Terms and definitions .8 4 Installation considerations 8 4.1 General remarks8 4.2 Bending radius of installed cable.8 4.3 Climatic conditions 8 5 Materials and cable construction 8 5.1 General remarks8 5.2 Cable construction 8 5.2.1 Conductor8 5.2.2 Insulation.8 5
14、.2.3 Cable element .9 5.2.4 Cable make-up 9 5.2.5 Screening of the cable core .9 5.2.6 Sheath.9 5.2.7 Identification9 5.2.8 Finished cable .10 6 Characteristics and requirements .10 6.1 General remarks10 6.2 Electrical characteristics and tests 10 6.2.1 Conductor resistance.10 6.2.2 Resistance unbal
15、ance .10 6.2.3 Dielectric strength .10 6.2.4 Insulation resistance10 6.2.5 Mutual capacitance10 6.2.6 Capacitance unbalance .11 6.2.7 Transfer impedance.11 6.2.8 Coupling attenuation11 6.2.9 Current-carrying capacity.11 6.3 Transmission characteristics .11 6.3.1 Velocity of propagation (phase veloci
16、ty) 11 6.3.2 Phase delay and differential delay (delay skew) 12 6.3.3 Attenuation ().12 6.3.4 Unbalance attenuation (TCL) .13 6.3.5 Near-end crosstalk (NEXT).13 6.3.6 Far-end crosstalk (FEXT) .14 6.3.7 Alien (exogenous) near-end crosstalk (ANEXT)14 6.3.8 Alien (exogenous) far-end crosstalk (AFEXT).1
17、5 6.3.9 Alien (exogenous) crosstalk of bundled cables 15 6.3.10 Impedance.15 6.3.11 Return loss (RL) 16 6.4 Mechanical and dimensional characteristics and requirements 17 6.4.1 Dimensional requirements .17 6.4.2 Elongation at break of the conductors17 Copyright International Electrotechnical Commiss
18、ion Provided by IHS under license with IECLicensee=HP Monitoring/1111111164 Not for Resale, 04/07/2009 19:09:24 MDTNo reproduction or networking permitted without license from IHS -,-,- 61156-5 IEC:2009(E) 3 6.4.3 Tensile strength of the insulation .17 6.4.4 Elongation at break of the insulation17 6
19、.4.5 Adhesion of the insulation to the conductor .17 6.4.6 Elongation at break of the sheath 17 6.4.7 Tensile strength of the sheath .17 6.4.8 Crush test of the cable 17 6.4.9 Impact test of the cable .17 6.4.10 Bending under tension.17 6.4.11 Repeated bending of the cable 17 6.4.12 Tensile performa
20、nce of the cable.17 6.4.13 Shock-test requirements of the cable.17 6.4.14 Bump-test requirements of the cable .18 6.4.15 Vibration-test requirements of a cable .18 6.5 Environmental characteristics18 6.5.1 Shrinkage of insulation 18 6.5.2 Wrapping test of insulation after thermal ageing 18 6.5.3 Ben
21、ding test of insulation at low temperature 18 6.5.4 Elongation at break of the sheath after ageing.18 6.5.5 Tensile strength of the sheath after ageing18 6.5.6 Sheath pressure test at high temperature 18 6.5.7 Cold bend test of the cable18 6.5.8 Heat shock test18 6.5.9 Damp heat steady state.18 6.5.
22、10 Solar radiation (UV test) 18 6.5.11 Solvents and contaminating fluids19 6.5.12 Salt mist and sulphur dioxide.19 6.5.13 Water immersion .19 6.5.14 Hygroscopicity.19 6.5.15 Wicking .19 6.5.16 Flame propagation characteristics of a single cable.19 6.5.17 Flame propagation characteristics of bunched
23、cables19 6.5.18 Halogen gas evolution .19 6.5.19 Smoke generation .19 6.5.20 Toxic gas emission19 6.5.21 Integrated fire test .19 7 Category 5e multipair cable19 7.1 General.19 7.2 Transmission.20 8 Introduction to the blank detail specification .20 Annex A (informative) Acronyms for common cable co
24、nstructions21 Bibliography23 Figure 1 Impedance template.16 Figure A.1 Common cable construction examples 22 Table 1 Cable categories .7 Table 2 Transfer impedance 11 Table 3 Coupling attenuation .11 Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=H
25、P Monitoring/1111111164 Not for Resale, 04/07/2009 19:09:24 MDTNo reproduction or networking permitted without license from IHS -,-,- 4 61156-5 IEC:2009(E) Table 4 Attenuation equation constants .12 Table 5 Near-end unbalance attenuation13 Table 6 Worst-pair PS NEXT(1) values 14 Table 7 Worst-pair P
26、S EL FEXT(1) values .14 Table 8 PS ANEXT 15 Table 9 PS AACR-F.15 Table 10 Return loss16 Table A.1 Cable construction acronyms .21 Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=HP Monitoring/1111111164 Not for Resale, 04/07/2009 19:09:24 MDTNo repr
27、oduction or networking permitted without license from IHS -,-,- 61156-5 IEC:2009(E) 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ MULTICORE AND SYMMETRICAL PAIR/QUAD CABLES FOR DIGITAL COMMUNICATIONS Part 5: Symmetrical pair/quad cables with transmission characteristics up to 1 000 MHz-horizontal fl
28、oor wiring Sectional specification FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all question
29、s 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)”
30、). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC collabo
31、rates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on
32、the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure t
33、hat the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the
34、 maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered respo
35、nsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technic
36、al committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Pu
37、blications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject
38、of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61156-5 has been prepared by subcommittee 46C: Wires and symmetric cables, of IEC technical committee 46: Cables, wires, waveguides, R.F. connectors, R.F. and microwave passi
39、ve components and accessories. This part of IEC 61156 is to be read in conjunction with IEC 61156-1. This second edition cancels and replaces the first edition published in 2002. This edition constitutes a technical revision. This edition includes the following significant technical changes with res
40、pect to the previous edition: a) new requirements for new Cat6A and Cat7A cables; Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=HP Monitoring/1111111164 Not for Resale, 04/07/2009 19:09:24 MDTNo reproduction or networking permitted without license
41、 from IHS -,-,- 6 61156-5 IEC:2009(E) b) revised requirements and tests for Cat5e, Cat6 and Cat7 cables. The text of this standard is based on the first edition and on the following documents: FDIS Report on voting 46C/878 /FDIS 46C/888/RVD Full information on the voting for the approval of this sta
42、ndard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts of the IEC 61156 series, under the general title Multicore and symmetrical pair/quad cables for digital communications can
43、 be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the maintenance result date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be rec
44、onfirmed; withdrawn; replaced by a revised edition, or amended. A bilingual version of this publication may be issued at a later date. Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=HP Monitoring/1111111164 Not for Resale, 04/07/2009 19:09:24 MDTNo
45、 reproduction or networking permitted without license from IHS -,-,- 61156-5 IEC:2009(E) 7 MULTICORE AND SYMMETRICAL PAIR/QUAD CABLES FOR DIGITAL COMMUNICATIONS Part 5: Symmetrical pair/quad cables with transmission characteristics up to 1 000 MHz-horizontal floor wiring Sectional specification 1 Sc
46、ope This part of IEC 61156 describes the cables intended primarily for horizontal floor wiring as defined in ISO/IEC 11801. It covers individually screened, common screened and unscreened pairs or quads (see Annex A). The transmission characteristics and the frequency range (see Table 1) of the cabl
47、es are specified at 20 C. Table 1 Cable categories Cable designation Maximum referenced frequency MHz Category 5e 100 Category 6 250 Category 6A 500 Category 7 600 Category 7A 1 000 These cables can be used for various communication channels which use as many as four pairs simultaneously. In this se
48、nse, this sectional specification provides the cable characteristics required by system developers to evaluate new systems. The cables covered by this standard are intended to operate with voltages and currents normally encountered in communication systems. While these cables are not intended to be used in conjunction with low impedance sources, for example, the electric power supplies of public utility mains, they