Optical Ground Wire (OPGW) and fiber optic cables require exceptionally gentle handling to protect the sensitive optical fibers. Essential "cable sagging tools" for these applications include:

• Specialized OPGW OHTLstringingequipment.com/Stringing-Blocks--Sheaves.html target='_blank'>Stringing Blocks: With larger diameter sheaves and ultra-smooth, often rubber or polyurethane-lined grooves to prevent crushing or kinking the cable.

• Non-Metallic Anti-Twist Swivels: To prevent torsional stress that can damage optical fibers, these Swivels are typically made of materials that won't induce twisting during pulling.

• Precise Tension Control Devices: Smaller, highly sensitive dynamometers or tension-limiting devices that can monitor and maintain very low pulling tensions specific to OPGW.

• OPGW pulling grips: Designed to grip the metallic outer layers of the OPGW without crushing the internal optical core.