柔性鋼管鎧裝光纜檢測

柔性鋼管鎧裝光纜檢測項(xiàng)目報價？??解決方案？??檢測周期？??樣品要求？

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YD/T 2289.3-2013無線射頻拉遠(yuǎn)單元(RRU)用線纜 第3部分:光電混合纜

本部分規(guī)定了無線射頻拉遠(yuǎn)單元(RRU)用光電混合纜(以下簡稱混合纜)的產(chǎn)品分類、要求、試驗(yàn)方法、檢驗(yàn)規(guī)則,以及標(biāo)志、使用說明書、包裝、運(yùn)輸和貯存。本部分適用于本地拉遠(yuǎn)的無線射頻拉遠(yuǎn)單元用光電混合纜,其他類似用途的光電混合纜也可參照使用。

YD/T 2488.1-2023柔性鋼管鎧裝光纜 第1部分：圓形光纜

本文件規(guī)定了柔性鋼管鎧裝圓形光纜的產(chǎn)品分類、要求、試驗(yàn)方法、檢驗(yàn)規(guī)則、安裝和使用要求、包裝和標(biāo)志、貯存和運(yùn)輸。r本文件適用于柔性鋼管鎧裝圓形光纜的設(shè)計(jì)、生產(chǎn)、安裝布放、檢測及驗(yàn)收。

YD/T 2488.2-2023柔性鋼管鎧裝光纜 第2部分：蝶形光纜

本文件規(guī)定了柔性鋼管鎧裝蝶形光纜的產(chǎn)品分類、要求、試驗(yàn)方法、檢驗(yàn)規(guī)則、安裝和使用要求、包裝和標(biāo)志、貯存和運(yùn)輸。本文件適用于柔性鋼管鎧裝蝶形光纜的設(shè)計(jì)、生產(chǎn)、檢測及驗(yàn)收。

YD/T 2617-2013柔性鋼管鎧裝光纜活動連接器

本標(biāo)準(zhǔn)規(guī)定了柔性鋼管鎧裝光纜活動連接器的定義和分類、結(jié)構(gòu)尺寸、材料、光學(xué)性能、機(jī)械性能、環(huán)境性能、實(shí)驗(yàn)方法、質(zhì)量評定程序以及標(biāo)志、包裝、運(yùn)輸及儲存要求。本標(biāo)準(zhǔn)適用于單芯、雙芯及多芯柔性鋼管鎧裝光纜活動連接器(以下簡稱：鎧裝連接器)。

ITU-T L.77-2008在下水道管道中安裝光纜.研究小組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.