Stockbridge dampers were designed to control high frequency aeolian vibration of the overhead conductors, by asymmetric placement of damper parts. Wind-induced vibration creates an imbalance, which causes an exhaustion of cable in anchored places of the conductor, near attached hardware like tension suspension clamps, and duration life of ADSS, OPGW cable is very short. When the stockbridge vibration damper is installed, it will waste the energy of Aeolian vibration, by itself.
Stock bridge vibration dampers can be used with optical ground wires (OPGW), all dielectric self-supporting (ADSS) cables.
The sizes and geometry of dampers influence the amount of energy that will waste against aeolian vibration. Vibration damper will be chosen according to specific span and conductor requirements.
|Type||Weigt, kg||L, mm||d, mm||D, yy/zz, mm|
Jera offers all the cable joints and accessories, which needed in construction of overhead transmission network: pole brackets, pole banding, stainless steel band and buckles, hooks, turnbuckles, shackles, spiral vibration dampers, cable slack storage, parallel groove connectors.
All the assemblies passed the tensile tests, operation experience with temperature cycling test, aging test, corrosion resistance test etc.
Materials: stainless steel, aluminum, metal hardware