Vibration dampers of the GPG-A type are designed for installation on conductors, ground wires, and self-supporting optical communication cables of power transmission lines with voltages ranging from 35 kV to 750 kV. Their primary function is to prevent fatigue failures caused by vibration. They are manufactured according to TU 3449-001-52819896-2010.

Technical specifications:

• Mass of applied weights: 0.8 kg; 1.6 kg; 2.4 kg; 3.2 kg; 4.0 kg.
• Linear dimension B: 100 mm; 128 mm; 150 mm; 160 mm; 168 mm.
• Damper cable diameter (d): 9.1 mm; 11.0 mm; 13.0 mm.
• Nominal length of the vibration damper (L): 300 mm; 350 mm; 400 mm; 450 mm; 500 mm; 550 mm; 600 mm; 650 mm.
• Clamp number indicating the seating diameter of the conductor (D):
  • No. 10–13: D = 9.0–14.0 mm; H = 50.0 mm; L1 = 45.0 mm.
  • No. 16–20: D = 14.5–20.0 mm; H = 65.5 mm; L1 = 45.0 mm.
  • No. 23–31: D = 20.1–32.0 mm; H = 85.0 mm; L1 = 50.0 mm.
  • No. 23–35: D = 20.1–35.0 mm; H = 85.0 mm; L1 = 50.0 mm.

The mass of the vibration damper depends on the mass of the weights, the length of the cable (L), and the clamp number. For example, with a weight mass of 0.8 kg, the damper mass ranges from 2.07 kg to 2.15 kg; with a weight mass of 4.0 kg, it ranges from 8.34 kg to 8.68 kg.