Use lifting equipment to unload the optical cable from the car, or slowly roll the optical cable directly from the springboard. Do not push it directly out of the car. The optical cable pulley rolls on the ground according to the direction of the sign, and pay attention to clearing debris on the ground. In order to avoid damaging the optical cables, the optical cable trays are supported by flanges or lifted through a central rotating shaft. The optical cable holder can be placed on the optical cable rack to ensure smooth release of the optical cable, and the optical cable rack braking device is flexible.
Install auxiliary accessories in place according to design requirements. If the installation position is changed at will, the potential of the optical cable in the electric field will change, which may increase electrical corrosion. Usually, auxiliary accessories are installed and pulleys are suspended, and the optical cable is passed through the tower from the outside. The pulleys on the corner tower should be supported outward to avoid friction between the optical cable and the tower during traction.
Laying traction ropes: The length of each traction rope should not exceed two kilometers. Deployment of the leash is usually done manually. When the ground conditions are complex (such as rivers, trees, etc.), you should consider using a cable car to drive the rope. The belt is then driven by a rope. The connection between the traction ropes must be reliable, and a retractor should be added to the connection between the traction ropes and the optical cable.
Install tractor and tensioner on tower and tower respectively. The tensile machine should be placed away from the wiring tower, and the height of the wiring tower should be more than four times the height of the suspension point. The tensioner should be fixed to the ground to withstand traction and tension. The output direction of the tensioner should be consistent with the output direction of the terminal tower.
After laying the traction rope, a certain tension should be applied (not less than the tension when pulling the optical cable), and the strength and connection points of the traction rope should be checked to prevent the optical cable from falling and suddenly breaking due to the traction rope breaking during the towing process. . During the towing process, the optical cable always keeps a certain distance from other obstacles.
The traction process of ADSS optical cable is the key to the entire construction. Communication and communication should be maintained at both ends, and the speed should not exceed 20m/min. The tension of the fiber optic cable is constant and the speed is forward. During the towing process, someone should advance synchronously with the front end of the optical cable, and observe whether the optical cable contacts branches, buildings, the ground, etc. before observing. If there is contact, increase tension. When the end of the optical cable passes through the pulley, it is necessary to climb up the tower to observe whether the connection between the optical cable and the traction rope passes through the pulley smoothly, and provide assistance if necessary. At the same time, check whether the surface of the optical cable is damaged and find problems in time. If necessary, use double string pulleys in corners and always protect them to prevent fiber optic cables from falling off the pulleys. The tension exerted on the fiber optic cable should not be too great. Sag and tensiometer data sheets are provided for each type of ADSS fiber optic cable product. Prevents the cable from twisting when pulling. When the fiber optic cable is twisted in a certain direction, it should be stopped immediately. Release the line, remove the tension, and reorient the pulley.
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