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Underwater fiber optic cable Wdm fibre monomode

Fiber Optic Indoor Pigtail
The laying method of the underwater optical cable should be based on the soil quality of the river bed, river width, water depth, flow rate and site conditions. Underwater excavators, manual excavators or flushing pumps can be used to flush grooves, slow anchoring, fast tug release, manual deployment, etc. Different methods, no matter what construction method is adopted, should meet the design requirements. fibconet.com wdm fibre monomode wdm fibre monomode
The buried depth of the underwater optical cable should be based on the specific conditions of the river, such as water depth, navigation, and riverbed soil quality, according to the design documents and should meet the following requirements: 1. Sections where the water depth is less than 8 meters (referring to the dry season): when the river bed is unstable or the soil is soft, the burial depth should not be less than 1.5 meters; when the river bed is stable or the soil is hard, the burial depth should not be less than 1.2 meters; For semi-stony riverbeds, the burial depth should not be less than 0.5 meters; 2. Sections with a water depth of more than 8 meters: Generally, the optical cable can be placed directly on the bottom of the river without burying, and special sections shall be handled according to the requirements of the design document. fibconet.com wdm fibre monomode wdm fibre monomode
The laying of underwater optical cables should meet the following requirements: 1. The laying speed and specified position of the optical cable should be controlled; 2. During the laying process, the optical cable shall not be vacated in the riverbed, and shall not make a small circle; 3. During the laying process and after laying, it is necessary to monitor whether the optical cable is in good condition, and solve the problem in time to ensure the laying quality of the underwater optical cable; 4. The laying length should be based on the length of the optical cable determined during the re-measurement of the route. Generally, the underwater optical cable should extend out of the embankment or the shore force should be 50 meters; 5. When the design stipulates that the optical cable is laid in an arc at the bottom of the river, the base line at the time of measurement should be used as the benchmark, and the arc should be laid upstream. fibconet.com wdm fibre monomode wdm fibre monomode
The depth and protection of part of the shore and beach shall meet the following requirements: 1. The buried depth of the beach should not be less than 1.5 meters. For stony and semi-stony areas, the bottom of the trench should be filled with 10-20 cm fine soil or sandy soil, and the top of the optical cable should be backfilled with crushed soil or sandy soil, and then filled to a height above the ground after compaction. The beaches are washed by floods, unstable areas, and areas where ships are docked. After filling the crushed soil or sand above the optical cable, it should be covered with cement boards or cement sandbags for protection. 2. The slope of the beach should be less than 30 degrees, and reinforcement measures should be taken according to the design requirements when it exceeds. fibconet.com wdm fibre monomode wdm fibre monomode
For navigable rivers where underwater optical cables are laid, the area where anchoring is prohibited shall be demarcated according to the design requirements, and waterline signs shall be set up on the river embankments or river banks crossing the river, and shall meet the following requirements: 1. The waterline sign should be a single-pole or double-pole sign according to the design requirements or the size of the river, and should be installed at the position determined by the design before the waterline is laid; 2. The waterline sign should be set in a place with high terrain and no obstructions, and the front of the sign should be at an angle of 25°C to 30°C with the upstream or downstream direction, respectively. 3. When the waterline sign is set in the soil loose area or when the depth does not meet the requirements, a pull line should be added, and reinforcement measures such as chassis and chuck should be added to the root of the cement pole. fibconet.com wdm fibre monomode wdm fibre monomode

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