"Vibration dampers" are crucial "OPGW Installation Accessories" engineered to mitigate Aeolian vibration (wind-induced oscillation) that can lead to fatigue failure in overhead lines, especially OPGW:

• Energy Dissipation: Devices like Stockbridge dampers or spiral dampers are strategically clamped onto the OPGW. When the cable vibrates, the damper's weights or helical 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, such as where the OPGW enters a suspension clamp. Without effective dampening, prolonged vibration can cause repeated stress cycles, leading to metal fatigue, strand breakage, and eventual mechanical failure of the OPGW and potential optical fiber damage.

Properly selected and installed OPGW vibration dampers are vital for safeguarding the OPGW's structural integrity and ensuring its long-term operational reliability.