BS EN IEC 60794-4-20:2018是一个系列规范，涵盖了光通信 电缆，通常带有单模光纤1，主要用于架空电力线路 应用。这些电缆也可用于其他架空公用设施网络，例如 电话或电视服务。分规范IEC 60794-4对天线的要求 沿电力线敷设的光缆适用于本文件涵盖的电缆。交叉引用:IEC 60811-202IEC 60811-203EN IEC 60794-1-22IEC 60793-1-21EN 60794-1-21:2015IEC 60794-1-24EN 60794-1-21IEC 60794-3EN IEC 60794-4IEC 60793-2IEC 60794-1-22EN 60793-2EN 60793-2-50IEC 60811-607IEC 60811-501IEC 61394IEC 60793-1-32IEC 60104IEC 60793-1-40EN ISO 9001IEC 60793-1-48IEC 60884- 1-1IEC 61232IEC 61089:1991IEC 60811-406IEC 60794-1-23IEC 60794-1-1IEC 60304IEC 60794-1-21IEC 60811-401IEC 60793-1-44IEC 60889EN 60060-1:2010IEC 60060-1:2010IEEE 1222:2011EN 60794-1-2EN 61395EN 61935IEC TR 62690IEC 60794-1-31EN 60794-4IEC TR 62839-1IEC 60794-1-1-1-1-1-23IEC 60794-20794-2-20EN购买本文件时所有当前的修改件均包括在内。

BS EN IEC 60794-4-20:2018, which is a family specification, covers optical telecommunication cables, commonly with single-mode fibres1 used primarily in overhead power lines applications. The cables can also be used in other overhead utility networks, such as for telephony or TV services. Requirements of the sectional specification IEC 60794-4 for aerial optical cables along electrical power lines are applicable to cables covered by this document.Cross References:IEC 60811-202IEC 60811-203EN IEC 60794-1-22IEC 60793-1-21EN 60794-1-21:2015IEC 60794-1-24EN 60794-1-21IEC 60794-3EN IEC 60794-4IEC 60793-2IEC 60794-1-22EN 60793-2EN 60793-2-50IEC 60811-607IEC 60811-501IEC 61394IEC 60793-1-32IEC 60104IEC 60793-1-40EN ISO 9001IEC 60793-1-48IEC 60888EN 60794-1-1IEC 61232IEC 61089:1991IEC 60811-406IEC 60794-1-23IEC 60794-1-1IEC 60304IEC 60794-1-21IEC 60811-401IEC 60793-1-44IEC 60889EN 60060-1:2010IEC 60060-1:2010IEEE 1222:2011EN 60794-1-2EN 61395EN 61935IEC TR 62690IEC 60794-1-31EN 60794-4IEC TR 62839-1IEC 60794-1-23IEC 60794-1-2EN 60794-3-20All current amendments available at time of purchase are included with the purchase of this document.