标准摘要
[中文适用范围]： 本 PAS 是 IEC 61156-1 第 3 版 (2007) 的技术补充：用于数字通信的多芯和对称双绞线/四绞线电缆 - 第 1 部分：通用规范。该 PAS 专门涵盖四对数据级电缆，旨在提供一种测试方法，用于确定由于部署 PoE /PoEP 的 IEEE 协议而出现的最大导体温度。如果此类束状电缆位于散热受限的区域（每种安装情况下都会发生这种情况），它还提供了有关此类束状电缆热力学行为的所需背景信息。但仅给出了基本原理，这些问题的严格应用和解决都属于相关布线标准的范围。 [外文原描述]： IEC/PAS 61156-1-4:2010(E) is covering exclusively four-pair data grade cables and is intended to provide a test method for the determination of the maximum attained conductor temperatures which occur due to the deployment of the IEEE protocol for PoE /PoEP. It gives as well the required background information about the thermodynamic behaviour of such bundled cables, if they are located in areas with restricted heat dissipation, a reality which occurs in every installation situation. However, only the basic principles are given, as the rigorous application and solution of these problems fall into the relevant cabling standards.
英文名称Multicore and symmetrical pair/quad cables for digital communications - Part 1-4: Symmetrical pair/quad cables with transmission characteristics up to 1 000 MHz - Conductor heating of bundled data grade cables for limited power transmission based on IEEE 802.3