Multicore and symmetrical pair/quad cables for digital communications - Part 1-4: Assessment of conductor heating in bundled cables due to the deployment of remote powering

IEC 61156-1-4:2018 specifies a method to assess the thermal behaviour of cables arranged in bundles, for digital communications. A method is described to determine the temperature increase in cable bundles for certain remote powering currents as a basis to analyse the expected performance under several test arrangements described in standards dealing with the installation of cabling systems.
It is only intended to provide guidance to assess the thermal behaviour of cables for digital communications in reference environmental conditions and arrangements. It is therefore not intended to become a type of test method.
This first edition cancels and replaces IEC PAS 61156-1-4, published in 2010. This edition includes the following significant technical changes with respect to the previous edition:
a) Several test arrangements are considered;
b) The mathematical approach was revised.

General Information

Status
Published
Publication Date
10-Oct-2018
Current Stage
PPUB - Publication issued
Start Date
22-Aug-2018
Completion Date
11-Oct-2018
Ref Project

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IEC 61156-1-4:2018 - Multicore and symmetrical pair/quad cables for digital communications - Part 1-4: Assessment of conductor heating in bundled cables due to the deployment of remote powering
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IEC 61156-1-4
®

Edition 1.0 2018-10
INTERNATIONAL
STANDARD

colour
inside


Multicore and symmetrical pair/quad cables for digital communications –
Part 1-4: Assessment of conductor heating in bundled cables due to the
deployment of remote powering

IEC 61156-1-4:2018-10(en)

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IEC 61156-1-4

®


Edition 1.0 2018-10




INTERNATIONAL



STANDARD








colour

inside










Multicore and symmetrical pair/quad cables for digital communications –

Part 1-4: Assessment of conductor heating in bundled cables due to the

deployment of remote powering


























INTERNATIONAL

ELECTROTECHNICAL


COMMISSION





ICS 33.120.20 ISBN 978-2-8322-5968-9




  Warning! Make sure that you obtained this publication from an authorized distributor.


® Registered trademark of the International Electrotechnical Commission

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– 2 – IEC 61156-1-4:2018 © IEC 2018
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and symbols. 6
3.1 Terms and definitions . 6
3.2 Symbols . 7
4 Testing procedure . 8
4.1 General .
...

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