Stringing bundled conductors and OPGW (Optical Ground Wire) demands highly specialized accessories due to their unique properties and criticality:

• Bundled Conductor Running Boards: These specialized pulling grips are designed to attach to and pull multiple conductors (e.g., two, three, or four conductors per bundle) simultaneously. They ensure even tension distribution across the bundle and prevent conductors from twisting or spiraling during the pull.

• Large Diameter OHTLstringingequipment.com/Stringing-Blocks--Sheaves.html target='_blank'>Stringing Blocks with Specialized Linings: For both bundled conductors and OPGW, OHTLstringingequipment.com/Stringing-Blocks--Sheaves.html target='_blank'>Stringing Blocks with significantly larger sheave (wheel) diameters are crucial. This minimizes the bending radius and stress on the conductors, protecting the sensitive optical fibers within OPGW and the overall integrity of the bundle. The linings must be ultra-low friction and non-abrasive.

• High-Capacity Anti-Twist Swivels: These are absolutely critical for OPGW and bundled conductors. They are installed between the pulling grip and the pulling rope to prevent any torsional forces from transferring to the conductor, which could damage the optical fibers or cause bundled conductors to "birdcage" or unravel.

• Bundled Conductor Spacers/Dampers: While often installed after stringing, the planning for these accessories (which maintain distance between bundled conductors and mitigate galloping) influences the overall stringing method and accessory selection.

• OPGW-Specific Pulling Grips: These grips are engineered to provide a secure, distributed grip on the OPGW's outer strands without crushing or deforming the delicate internal fiber optic core. They are typically longer than standard grips for better force distribution.

• Precise Dynamometers: Highly accurate tension measuring devices are vital to ensure the exact sag and tension specifications are met for bundled conductors, and to prevent over-tensioning of OPGW, which could impact its optical performance.