How to use the telecom-specific fiber optic cable hanging pulley

To use a fiber optic cable hanging pulley, set up guide pulleys along the span, connect a traction rope to the cable, and gradually release the cable using manual or mechanical traction while maintaining proper tension and bend radius.

Step-by-Step Guide

1. Prepare the Cable and Pulley System

• Place the fiber optic cable on a cable tray or disk at the starting pole.
• Fix a large pulley at the lead-on and lead-off poles to guide the cable.
• Install small guide pulleys every 10–20 meters along the suspension line to direct the cable and reduce friction . 2. Set Up the Traction Rope
• Thread a traction rope through each guide pulley along the span.
• Create a traction head and securely connect the rope to the fiber optic cable, ensuring the pulling force is applied to the cable's reinforcing members, not the fiber itself . 3. Manual Traction Method
• Gradually push or tighten the cable tray to release the cable.
• Assign personnel at every other pole to assist with auxiliary traction, especially at corners where guide pulleys may be installed.
• Maintain communication between the cable laying end, receiving end, and traction head to ensure smooth operation . 4. Mechanical Traction Method
• Place the main mechanical traction machine at the cable collection end and auxiliary machines at strategic points along the route.
• Release the cable from the tray gradually using the machine, replacing manual effort with mechanical traction for longer spans . 5. Safety and Cable Integrity
• Always respect the cable's minimum bend radius (typically 20 times the cable diameter under tension) to prevent fiber damage .
• Avoid kinking or twisting the cable; use swivel pulling eyes if necessary.
• Ensure the cable is properly supported and tensioned to prevent sagging, wind damage, or vibration issues . 6. Handling Long Cable Runs
• For long single-disk cables, release in two stages: first half, then invert the disk in an “8” shape, and release the second half in the opposite direction . 7. Final Checks
• Verify that all pulleys are secure and aligned.
• Ensure the cable is free from obstructions and maintains proper clearance from other utilities.
• Confirm that all service loops and splice closures are properly secured . By following these steps, you can safely and efficiently deploy aerial fiber optic cables using hanging pulleys while protecting the integrity of the fibers and ensuring optimal network performance.