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Pipe fiber cable wdm filter fiber

Optical fiber communication solution in harsh outdoor environment
The following preparations should be made before laying the pipeline optical cable: 1. Check the position of the pipe hole occupied by the optical cable according to the design; 2. The hole position selected on the same route should not be changed. For example, when changing or turning, it should meet the requirements of the bending radius of the optical cable; 3. The pipe holes used must be cleaned. 4. Each manhole should be manned when laying optical cables manually, and manholes should be manned when laying optical cables mechanically. 5. When the optical cable penetrates the pipe hole or the pipe turns or crosses, a guiding device or a horn protection tube should be used, and the outer sheath of the optical cable should not be damaged. Apply a neutral lubricant around the cable as needed. 6. The length of a single pulling of the optical cable is generally not more than 1000 meters. When it is too long, you should take the disc 8-section traction or add auxiliary traction in the middle. 7. After the optical cable is laid, it should be under the unified command of a special person, and the optical cable should be placed on the specified pallet one by one, and an appropriate margin should be left to avoid the optical cable being too tight. 8. The reserved length of the optical cable according to the manhole where the head is located shall comply with the regulations; the optical cable specially reserved for design requirements shall be properly placed in the specified position. wdm filter fiber wdm filter fiber wdm filter fiber
9. The expansion measures of pipeline optical cable shall meet the following requirements: 1) The optical cable in the manhole can be protected by a serpentine soft tube (or soft plastic tube) and bound on the cable tray or handled according to the measures required by the design; 2) The nozzle should be plugged; 3) Optical cables in manholes should have identification marks; 4) In severe cold areas, antifreeze measures should be taken according to the design requirements to prevent damage to the optical cable. wdm filter fiber wdm filter fiber wdm filter fiber
10. The laying method of plastic sub-pipes is basically the same as the laying of optical cables, and should also meet the following requirements: 1) When laying more than two sub-pipes without color markings, the ends should be marked; 2) The ambient temperature for laying the plastic sub-pipes should be between -5°C and +35°C; 3) The length of continuous plastic sub-pipes should not exceed 300 meters; 4) The maximum pulling force of the tractor tube should not exceed the tensile strength of the tube, and the traction speed should be uniform; 5) The excess length of the sub-pipe in the manhole should meet the design requirements; 6) For the pipe hole of the plastic sub-pipe, a plastic pipe plug should be installed (other methods can also be used) to fix the sub-pipe; 7) There shall be no joints in the middle of the sub-pipes; 8) After the sub-pipes are laid, the nozzles should be temporarily blocked; the sub-pipes not used in this phase of the project must be blocked (caps) at the pipe ends. wdm filter fiber wdm filter fiber

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