IEC 61156-1-4
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
| Organization: | IEC |
| Publication Date: | 1 October 2018 |
| Status: | active |
| Page Count: | 24 |
| ICS Code (Wires and symmetrical cables): | 33.120.20 |
scope:
This document 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 (e.g. [1] 1, [2]).
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.
The following test arrangements are considered:
c) free air;
d) cable tray;
e) conduits;
f) conduit with sealed ends.
Even though this document covers four-pair data grade cables, the same principles can be applied to other cable types.
1 Numbers in square brackets refer to the Bibliography.
Document History
