IEC 61156-11:2019
(Main)Multicore and symmetrical pair/quad cables for digital communications - Part 11: Symmetrical single pair cables with transmission characteristics up to 600 MHz - Horizontal floor wiring - Sectional specification
Multicore and symmetrical pair/quad cables for digital communications - Part 11: Symmetrical single pair cables with transmission characteristics up to 600 MHz - Horizontal floor wiring - Sectional specification
IEC 61156-11:2019 describes cables intended to be used for transmission of 1 Gbps over a single twisted pair for office, home and industrial application. An example of existing application is 1000BASE-T1, see ISO/IEC TR 11801-9906. The transmission characteristics of these cables are specified up to a frequency of 600 MHz and at a temperature of 20 °C. The cable type recognised is intended to be used for shielded channels with a nominal length of 40 m. Possible designs are U/FTP, X/UTP and X/FTP, where X stands for F, S or SF. A blank detail specification can be found in Annex A. These cables can comprise more than one pair in the event that several systems are operated in parallel. In this case, refer to Clause 7 of this document. The cables covered by this document 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 are intended to be used to support the delivery of low-voltage remote powering applications.
General Information
Relations
Buy Standard
Standards Content (Sample)
IEC 61156-11 ®
Edition 1.0 2019-05
INTERNATIONAL
STANDARD
Multicore and symmetrical pair/quad cables for digital communications –
Part 11: Symmetrical single pair cables with transmission characteristics
up to 600 MHz – Horizontal floor wiring – Sectional specification
All rights reserved. Unless otherwise specified, 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
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
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 publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.
need further assistance, please contact the Customer Service
Centre: sales@iec.ch.
IEC 61156-11 ®
Edition 1.0 2019-05
INTERNATIONAL
STANDARD
Multicore and symmetrical pair/quad cables for digital communications –
Part 11: Symmetrical single pair cables with transmission characteristics
up to 600 MHz – Horizontal floor wiring – Sectional specification
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.120.20 ISBN 978-2-8322-6678-6
– 2 – IEC 61156-11:2019 © IEC 2019
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Installation considerations . 8
4.1 General remarks . 8
4.2 Bending radius of installed cable. 8
4.3 Climatic conditions . 8
5 Materials and cable construction . 8
5.1 General remarks . 8
5.2 Cable construction . 9
5.3 Conductor . 9
5.4 Insulation . 9
5.5 Cable element . 9
5.6 Screening of the cable element . 9
5.7 Cable make-up. 9
5.8 Screening of the cable core . 9
5.9 Sheath . 9
5.10 Identification . 10
5.11 Finished cable . 10
6 Characteristics and requirements . 10
6.1 General remarks . 10
6.2 Electrical characteristics and tests . 10
6.2.1 Conductor resistance . 10
6.2.2 Resistance unbalance. 10
6.2.3 Dielectric strength . 11
6.2.4 Insulation resistance . 11
6.2.5 Mutual capacitance . 11
6.2.6 Capacitance unbalance . 11
6.2.7 Transfer impedance . 11
6.2.8 Coupling attenuation . 11
6.2.9 Current-carrying capacity . 12
6.3 Transmission characteristics . 12
6.3.1 Velocity of propagation (phase velocity) . 12
6.3.2 Phase delay and differential delay (delay skew) . 12
6.3.3 Attenuation (α) . 12
6.3.4 Unbalance attenuation (TCL and EL TCTL) . 13
6.3.5 Alien (exogenous) near-end crosstalk (PS ANEXT) . 13
6.3.6 Alien (exogenous) far-end crosstalk (PS AACR-F) . 14
6.3.7 Alien (exogenous) crosstalk of bundled cables . 14
6.3.8 Impedance . 14
6.3.9 Return loss (RL) . 14
6.4 Mechanical and dimensional characteristics and requirements . 15
6.4.1 Dimensional requirements . 15
6.4.2 Elongation at break of the conductor. 15
6.4.3 Tensile strength of the insulation . 15
6.4.4 Elongation at break of the insulation . 15
6.4.5 Adhesion of the insulation to the conductor . 15
6.4.6 Elongation at break of the sheath . 15
6.4.7 Tensile strength of the sheath . 15
6.4.8 Crush test of the cable . 15
6.4.9 Impact test of the cable . 15
6.4.10 Bending under tension . 16
6.4.11 Repeated bending of the cable . 16
6.4.12 Tensile performance of the cable . 16
6.4.13 Shock-test requirements of the cable . 16
6.4.14 Bump-test requirements of the cable . 16
6.4.15 Vibration-test requirements of a cable . 16
6.5 Environmental characteristics . 16
6.5.1 Shrinkage of the insulation . 16
6.5.2 Wrapping test of the insulation after thermal ageing . 16
6.5.3 Bending test of insulation at low temperature . 16
6.5.4 Elongation at break of the sheath after ageing . 16
6.5.5 Tensile strength of the sheath after ageing . 16
6.5.6 Sheath pressure test at high temperature . 16
6.5.7 Cold bend test of the cable . 17
6.5.8 Heat shock test . 17
6.5.9 Damp heat steady state . 17
6.5.10 Solar radiation . 17
6.5.11 Solvents and contaminating fluids . 17
6.5.12 Salt mist and sulphur dioxide . 17
6.5.13 Water immersion . 17
6.5.14 Hygroscopicity . 17
6.5.15 Wicking. 17
6.5.16 Flame propagation characteristics of a single cable . 17
6.5.17 Flame propagation characteristics of bunched cables . 17
6.5.18 Halogen gas evolution . 17
6.5.19 Smoke generation . 18
6.5.20 Toxic gas emission . 18
6.5.21 Integrated fire test method for cables in environmental air handling
spaces . 18
7 Bundled cable requirements . 18
7.1 General . 18
7.2 Single pairs sharing one sheath . 18
7.2.1 General . 18
7.2.2 Near-end crosstalk (NEXT) . 18
7.2.3 Attenuation to crosstalk ratio far-end (PS ACR-F) . 19
Annex A (informative) Blank Detail Specification . 20
Bibliography . 25
Table 1 – Transfer impedance . 11
Table 2 – Coupling attenuation . 12
Table 3 – Attenuation equation constants . 13
Table 4 – TCL requirements . 13
– 4 – IEC 61156-11:2019 © IEC 2019
Table 5 – EL TCTL requirements . 13
Table 6 – PS ANEXT requirements . 14
Tab
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.