The installation process of air-blown optical cable mainly includes the following steps:
Test the sub-tube pressure to ensure the smoothness and integrity of the sub-tube. This includes checking the pressure of the sub-tube and performing necessary tests to ensure that the sub-tube is not damaged or blocked.
Prepare the optical cable, put the optical cable on the appropriate cable net, and select the correct tractor to install on the rotating body. This ensures the stability and controllability of the optical cable during the laying process.
Start the air pressure power source, raise the conveyor cover, and tilt the cable blowing machine forward. Add lubricant before the tractor enters the sub-tube, then pass the optical cable assembly through the traction drive device, and push the optical cable assembly including all the optical cable nets into the sub-tube. Add lubricant after the tractor enters the sub-tube, select a suitable sealing ring to install on the optical cable, with the grooved side of the sealing ring facing the sub-tube, put the optical cable sealing ring into the groove of the thin waist tube, with the open end facing down, install the sealing cover, and tighten the bolts, but not too tight, using the cross tightening method.
Install and check all parts to ensure that there are no omissions or incorrect installations. Notify the staff to start blowing the cable and complete the laying of the optical cable.
This process uses high-pressure airflow to blow the optical cable into the pre-buried silicon core tube. The cable blowing machine blows high-pressure, high-speed compressed air into the silicon core tube. The high-pressure airflow pushes the air-sealing piston to form a settable uniform pulling force on the optical cable. At the same time, the hydraulic crawler conveying mechanism of the cable blowing machine clamps the optical cable and conveys it forward to form a conveying force. The combination of pulling force and conveying force allows the inserted optical cable to quickly travel through the pipeline in a suspended state along with the high-speed airflow. This laying method effectively utilizes the resources of mature pipelines, saves a lot of engineering construction costs, and can provide a variety of communication services for the production, dispatching, administrative management, line patrol and emergency repair, life logistics, etc. of long-distance pipelines. At the same time, it provides a reliable channel for data transmission of the pipeline SCADA system and provides communication support for digital pipelines.