Anti-twist swivels are critically important, especially for OPGW (Optical Ground Wire) and bundled conductors, for several reasons:

• Preventing Twisting: OPGW cables contain delicate optical fibers that are highly susceptible to damage from twisting. Swivels allow the cable to rotate freely, preventing torsional stress from being transferred from the pulling rope to the OPGW.

• Maintaining Conductor Integrity: For bundled conductors, swivels prevent individual sub-conductors from twisting around each other, which can lead to damage, uneven tensioning, and difficulty in installing spacers.

• Smooth Stringing: By eliminating torque buildup, swivels ensure a smoother pulling operation, reducing stress on the pulling equipment and the conductor itself.

• Improved Sagging Accuracy: A twisted conductor can impact the accuracy of sag measurements and lead to an uneven sag profile, which affects line performance and clearances. Swivels help maintain a consistent conductor orientation.