IEC IEC61156-5 Edition 3.0 2020-04 REDLINEVERSION INTERNATIONAL STANDARD colour inside Multicore and symmetrical pair/quad cables for digital communications - Part 5: Symmetrical pair/quad cables with transmission characteristics up to 1 ooo MHz - Horizontal floor wiring - Sectional specification IEC 61156-5:2020-04 RLV(en) THISPUBLICATIONIS COPYRIGHTPROTECTED Copyright@2020IEC,Geneva,Switzerland 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 Varembe [email protected] 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. AboutIECpublications 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, varietyof 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 and withdrawn publications.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:[email protected]. IEC IEC61156-5 Edition3.02020-04 REDLINEVERSION INTERNATIONAL STANDARD colour inside Multicore and symmetrical pair/quad cables for digital communications Part 5: Symmetrical pair/quad cables with transmission characteristics up to 1 ooo MHz - Horizontal floor wiring - Sectional specification INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 33.120.20 ISBN978-2-8322-8147-5 Warning! Make sure that you obtained this publication from an authorized distributor.