光缆.第4部分:分规范.沿电力线的架空光缆

[中文适用范围]： IEC 60794 的第 4 部分涵盖了沿电力线使用的架空光缆及其元件的电缆结构、测试方法、光学、机械、环境和电气性能要求，用作通信和控制光信号的高带宽传输介质，包括光地线（OPGW）、光电相线（OPPC）、金属架空自承式电缆（MASS）、全介质自承式电缆（ADSS）和光缆附线（OPAC）。本文件排除了在电话公用杆上使用的图 8 型光缆。IEC TR 62839-1 提供了应客户要求向客户提供环境声明的建议。 [外文原描述]： IEC 60794-4:2018 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. IEC 60794-4:2018 covers cable construction, test methods, optical, mechanical, environmental and electrical performance requirements for aerial optical fibre cables and cable elements which are intended to be used along power lines (OCEPL) as a high bandwidth transport media for communications and control optical signals, including optical ground wires (OPGW), optical phase conductors (OPPC), metallic aerial self-supported cables (MASS), all-dielectric self-supporting cables (ADSS) and optical attached cables (OPAC). This document excludes figure-8 optical cables to be used on telephone utility poles. The IEC TR 62839-1 gives recommendations to provide the customer with the environmental declaration on request. This second edition cancels and replaces the first edition published in 2003. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) the specification has been streamlined by cross-referencing IEC 60794-1-1; b) the classification as type tests or routine tests has been deleted; c) cable kink test has been deleted; d) creep test for ADSS is referred to IEC 60794-4-20. Keywords: aerial optical fibre cables