Vibration Damper, Stockbridge

Fargo® 4-R stockbridge vibration dampers effectively prevent fatigue damage to conductor and static wires caused by wind-induced aeolian vibration. The 4-R concept improves on the design of the basic Stockbridge Damper, significantly increasing the efficiency of converting wind-induced energy into heat. The improved design employs unequal weights on messengers of unequal length. This configuration doubles the number of resonant peaks from two generated by the old-style Stockbridge Damper to four in the improved Fargo® 4-R. These additional resonant peaks create an envelope of dyanmic response that protects the conductor through the entire range of dangerous vibration frequencies.

• Bare Conductor/Cable Diameter Range 0.439 - 0.858 in (11.2 - 21.9mm),Conductor/Cable Diameter Over Armor Rods Range 0.524 - 0.865 in (13.3 - 22.0mm)
• Clamp Bolt Torque 25 ft-lb
• To specify Torque Head/Break Away bolt option, add suffix “O” to catalog number.
• Galvanized steel messenger cable
• Weights are given a corrosion-resistant finish and have smooth surfaces and rounded edges to eliminate possible corona discharge.
• The bolted clamp permits easy installation on a wide range of conductor sizes. Aluminum clamping bolt ensure that damper clamp remains tight as conductor temperature changes with current load cycling.