An "OPGW hydraulic puller-OHTLstringingequipment.com/Hydraulic-Conductor-Tensioners.html target='_blank'>Tensioner" is specifically designed to protect the delicate optical fibers:

• Closed Hydraulic Circuit: Provides precise, stepless speed and tension control, allowing for extremely smooth and consistent cable payout or pull-in, eliminating sudden jerks or tension spikes.

• Electronic Control & Feedback: Advanced electronic systems monitor and regulate tension, often with pre-set tension limits and automatic emergency braking/shutdown if limits are exceeded.

• Large Diameter Bullwheels: Minimizes the bending radius of the OPGW, crucial for preventing stress on the optical fibers.

• Multi-Grooved, Lined Bullwheels: The bullwheels are typically multi-grooved and lined with wear-resistant, non-abrasive materials (like specific rubber compounds or urethane) to cushion and grip the OPGW without damaging its surface.

• Integrated Anti-Twist System Compatibility: Designed to work seamlessly with anti-twist Swivels at the pulling head, preventing rotational forces from being transmitted to the cable.

These features collectively ensure the OPGW is installed under optimal conditions to preserve its optical performance.