标准摘要
[中文适用范围]： IEC 60794-4 的这一部分是一个系列规范，涵盖光通信电缆，通常采用主要用于架空电力线应用的单模光纤1。这些电缆还可用于其他架空公用网络，例如电话或电视服务。电力线路架空光缆分规范 IEC 60794-4 的要求适用于本文件涵盖的电缆。本文件涵盖了全介电自承式光纤 (ADSS) 电缆的结构、机械、电气和光学性能、安装指南、验收标准、测试要求、环境注意事项以及配件兼容性。本文件提供了结构和性能要求，确保在本文件的指导范围内，保持电缆组件所需的机械完整性以及光纤机械可靠性和传输参数。 ADSS 电缆由包含在一个或多个保护性介电光纤单元中的单模光纤组成，该单模光纤被合适的介电强度构件和护套包围或附接至合适的介电强度构件和护套。该电缆不含金属成分。 ADSS 电缆旨在满足不同安装、操作和环境条件及负载下的光学和机械要求，如附录 B 中所述。本文件不包括 IEC 60794-4 中包含的任何“绑扎”或“缠绕”OPAC 电缆。图8架空电缆也不包括在内；它们在 IEC 60794-3-20 中指定。 [外文原描述]： IEC 60794-4-20:2018 covers optical telecommunication cables, commonly with single-mode fibres 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. This document covers the construction, mechanical, electrical, and optical performance, installation guidelines, acceptance criteria, test requirements, environmental considerations, and accessories compatibility for an all dielectric, self-supporting fibre optic (ADSS) cable. This document provides construction and performance requirements that ensure, within the guidelines of this document, that the required mechanical integrity of the cable components as well as optical fibre mechanical reliability and transmission parameters are maintained. The ADSS cable consists of single mode optical fibres contained in one or more protective dielectric fibre optic units surrounded by or attached to suitable dielectric strength members and sheaths. The cable does not contain metallic components. An ADSS cable is designed to meet the optical and mechanical requirements under different installation, operating and environmental conditions and loadings, as described in Annex B. This document excludes any "lashed" or "wrapped" OPAC cables included in IEC 60794-4. Figure 8 aerial cables are also excluded; they are specified in IEC 60794-3-20. This second edition cancels and replaces the first edition published in 2012 and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - this document has been streamlined by cross-referencing IEC 60794-1-1, - IEC 60794-4 (all parts) and IEC 60794-1-2; - reference to the MICE table has been deleted; - the example of test method for particular environment in Annex C has been deleted; - creep test method has been updated in Annex E. Keywords: optical telecommunication cables, single-mode fibres used primarily in overhead power lines
英文名称Optical fibre cables - Part 4-20: Sectional specification - Aerial optical cables along electrical power lines - Family specification for ADSS (all dielectric self-supported) optical cables