光纤光缆.第3-20部分:室外光缆.自立式架空通信光缆的系列规范

[中文适用范围]： IEC 60794 的这一部分是一个系列规范，涵盖光学自承式架空通信电缆。管道电缆、埋地电缆和架空电缆分规范 IEC 60794-3 的要求适用于本标准涵盖的电缆。在本文中，自支撑架空通信电缆是指具有足够强度构件的电缆结构，设计用于悬挂在杆和类似装置上，而无需其他支撑线或导体的帮助。安装在电力线上的 ADSS 电缆需要特殊的护套材料来实现耐漏电起痕和耐腐蚀，以及其他用于高压应用的结构不属于本标准的范围。详细规格可以根据该系列规格来制定。注意 IEC TR 62839-1 给出了在需要时构建环境声明的规则。 [外文原描述]： IEC 60794-3-20:2016 covers optical self-supporting aerial telecommunication cables. Requirements of the sectional specification IEC 60794-3 for duct, buried and aerial cables are applicable to cables covered by this standard. Self-supporting aerial telecommunication cable in this context means a cable construction with sufficient strength members designed to be suspended on poles and similar devices without the aid of another supporting wire or conductor. ADSS cables installed on power lines which require special sheath material for tracking and erosion resistance and other constructions intended for high-voltage applications are not covered by this standard. Detail specifications may be prepared based on this family specification. This third edition cancels and replaces the second edition published in 2009. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - the specification has been streamlined by cross-referencing IEC 60794-1-1, IEC 60794-1-2 and the IEC 60794-3 series; - an annex containing the MICE table has been deleted; - an annex on examples has been added. Keywords: optical self-supporting aerial telecommunication cables