"Real-time tension monitoring systems" are fundamental to safe and precise OPGW stringing. These systems, integrated with digital dynamometers, provide continuous, accurate feedback on the pulling or tensioning force applied to the OPGW:

• Precise Sag Control: By correlating tension directly to sag (using pre-calculated sag-tension charts for specific OPGW types and temperatures), operators can achieve the exact sag required, ensuring clearances and optimal performance.

• Fiber Protection: Immediate alerts if tension approaches the cable's maximum permissible limits, allowing operators to reduce tension and prevent irreversible damage to the optical fibers.

• Safety Against Overload: Prevents machine overload and potential structural failure, protecting both personnel and equipment.

• Data Logging: The ability to log tension data throughout the stringing process provides invaluable records for quality assurance, troubleshooting, and future project planning.