"Vibration dampers" are critical "OPGW Stringing Accessories" that mitigate fatigue damage caused by wind-induced vibration (Aeolian vibration).

• Energy Dissipation: These devices (e.g., Stockbridge dampers, spiral dampers) are strategically clamped onto the OPGW. When the cable vibrates, the damper's weights or specific design oscillate out of phase with the cable, absorbing and dissipating the vibrational energy.

• Fatigue Prevention: This dampening action significantly reduces the dynamic bending stress at critical points like suspension clamps, where the OPGW is most susceptible to fatigue failure. Without effective dampening, prolonged vibration can lead to strand breakage and eventual failure of the entire OPGW cable.

Properly sized and installed OPGW vibration dampers are essential for ensuring the long-term mechanical and optical integrity of the line.