Characteristics of vibration dampers for high-voltage overhead lines

The vibration damper is designed to reduce wire vibration caused by wind. High-voltage overhead lines have high pole positions and large spans. When the wire is exposed to wind, it will vibrate. When the wire vibrates, the working conditions at the wire suspension are the most unfavorable. Due to multiple vibrations, the wire will be fatigued and damaged due to periodic bending. When the span of the overhead line is greater than 120 meters, vibration dampers are generally used to prevent vibration.

On high-voltage overhead lines, small hammers are often hung on the wires on both sides of the insulator. This kind of small hammer is called an vibration damper, and it is designed to reduce wire vibration caused by wind. High-voltage overhead lines have high pole positions and large spans. When the wire is exposed to wind, it will vibrate. When the wire vibrates, the working conditions at the wire suspension are the most unfavorable. Due to multiple vibrations, the wire will be fatigued and damaged due to periodic bending. When the span of the overhead line is greater than 120 meters, the vibration damper is generally used for anti-vibration. For steel core aluminum wire, the weight of the vibration damper is

w=0.4d-2.2 (kg)

In the formula, d—— outer diameter of wire (mm)

The vibration damper is a heavy hammer with a certain quality and high elasticity, composed of high-strength zinc steel strands and clamps.