新的！IEC 60794-4:20 18作为IEC 60794-4:20 18 RLV提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。IEC 60794-4:20 18涵盖了电缆结构、测试方法、用于沿电力线(OCEPL)用作通信和控制光信号的高带宽传输介质的架空光纤电缆和电缆元件的光学、机械、环境和电气性能要求，包括光地线(OPGW)、光相位导体(OPPC)、金属架空自支撑电缆(MASS)、全介质自支撑电缆(ADS)和光连接电缆(OPAC)。本文件不包括用于电话电线杆的图8光缆。IEC TR 62839-1建议根据要求向客户提供环境声明。这第二版取消并取代了2003年出版的第一版。此版本构成技术修订。？与上一版相比，此版本包括以下重大技术变更: a)通过交叉引用IEC 60794-1-1简化了规范； b)已删除型式试验或常规试验的分类； c)删除了电缆扭结试验； d)ADSS的蠕变试验参考IEC 60794-4-20。 关键词:架空光缆

NEW!IEC 60794-4:2018 is available as IEC 60794-4:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the 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