光纤电缆第3部分:室外电缆分规范

[中文适用范围]： 本部分IEC 60794规定了用于通信网络外部的光缆和电缆元件的要求。其他需要类似类型电缆的应用也可以考虑。 本文件包括用于管道、直接埋设应用、架空电缆以及用于湖泊和河流穿越的电缆的要求。还包括用于下水道以及水和气体管道的专用电缆。 对于架空应用，本文件不涵盖安装在架空电力线附近电缆的所有功能方面。对于此类应用，可能需要额外的要求和测试方法。此外，本文件不包括光纤地线和连接到架空电力线的相线或地线的电缆。 对于用于湖泊和河流穿越的电缆，本文件不涵盖电缆修复方法或修复能力，也不包括与水下线路放大器一起使用的电缆。 [外文原描述]： IEC 60794-3:2022 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 60794-3: 2022 specifies the requirements for optical fibre cables and cable elements which are intended to be used externally in communications networks. Other types of applications requiring similar types of cables can be considered. Requirements for cables to be used in ducts, for directly buried applications, aerial cables and cables for lake and river crossings are included in this document. Also included are cables for specialized use in sewers and in water and gas pipes. For aerial application, this document does not cover all functional aspects of cables installed in the vicinity of overhead power lines. For such applications, additional requirements and test methods can be necessary. Moreover, this document excludes optical ground wires and cables attached to the phase or earth conductors of overhead power lines. For cables for lake and river crossings, this document does not cover methods of cable repair, nor repair capability, nor does it cover cables for use with underwater line amplifiers. This fifth edition cancels and replaces the fourth edition published in 2014. This edition constitutes a technical revision. This edition includes the following significant technical change with respect to the previous edition: the ribbon specification has been removed, because it is covered in IEC 60794-1-31.