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.
IEC 61156-1-4-2018由国际电工委员会 IX-IEC 发布于 2018-10-00。
IEC 61156-1-4-2018在国际标准分类中归属于: 33.120.20 导线和对称电缆。
IEC 61156-1-4-2018 由 IEC/PAS 61156-1-4-2010 变更而来。
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