柔性钢管铠装光缆检测

YD/T 2289.3-2013无线射频拉远单元(RRU)用线缆 第3部分:光电混合缆

本部分规定了无线射频拉远单元(RRU)用光电混合缆(以下简称混合缆)的产品分类、要求、试验方法、检验规则,以及标志、使用说明书、包装、运输和贮存。本部分适用于本地拉远的无线射频拉远单元用光电混合缆,其他类似用途的光电混合缆也可参照使用。

YD/T 2488.1-2023柔性钢管铠装光缆 第1部分：圆形光缆

本文件规定了柔性钢管铠装圆形光缆的产品分类、要求、试验方法、检验规则、安装和使用要求、包装和标志、贮存和运输。r本文件适用于柔性钢管铠装圆形光缆的设计、生产、安装布放、检测及验收。

YD/T 2488.2-2023柔性钢管铠装光缆 第2部分：蝶形光缆

本文件规定了柔性钢管铠装蝶形光缆的产品分类、要求、试验方法、检验规则、安装和使用要求、包装和标志、贮存和运输。本文件适用于柔性钢管铠装蝶形光缆的设计、生产、检测及验收。

YD/T 2617-2013柔性钢管铠装光缆活动连接器

本标准规定了柔性钢管铠装光缆活动连接器的定义和分类、结构尺寸、材料、光学性能、机械性能、环境性能、实验方法、质量评定程序以及标志、包装、运输及储存要求。本标准适用于单芯、双芯及多芯柔性钢管铠装光缆活动连接器(以下简称：铠装连接器)。

ITU-T L.77-2008在下水道管道中安装光缆.研究小组6

The installation of optical cables inside sewer ducts is basically a trenchless technique.Optical cable installation in sewer ducts presents many advantages compared with traditional trenchinstallation techniques, such as: less time for cable laying, not limited by weather conditions,increased protection of cable against damage, no traffic disruption, no noise pollution, noexcavation, no damage to road surfaces and underground installations, no heavy equipment, noinconvenience to businesses or to citizens.In general, there are two categories of sewers: man-accessible and non-man-accessible sewers.The definition of whether a sewer is man-accessible or not depends not only on national regulations,but also on the individual regulations of different sewer network operators.Usually, non-man-accessible sewers have diameters between 200 mm and 700 mm.Installation in non-man-accessible sewers is carried out with the help of robots. In man-accessiblesewers, both robot-assisted and manual installation of cables is feasible.Basically, there are three different methods to install optical cables into sewer ducts:a) Special armoured optical cables, designed to be directly installed at the bottom of thesewers;b) Self-supporting optical cables, designed to be directly suspended at the top part of sewers;c) Traditional optical cables or micro-cables, designed to be installed in protective ductswhich have to be installed before the cable installation.NOTE 1 – The most important optical cable structures and related performances suitable for these kinds ofinstallation techniques are described in [ITU-T L.78].NOTE 2 – The sewer optical cables and/or related infrastructure should be designed and manufactured for anexpected operating lifetime of at least 15 years. It should be possible to install or remove the cable to/fromthe sewer throughout the operation lifetime. The materials in the sewer optical cable and/or the relatedinfrastructure shall not present a health hazard within its intended use.