Abstract: Dampers are widely used in aerial conductors to reduce the severity of aeolian vibration and the accompanying fatigue damage to conductor strands and fittings. It describes a physics model and deduces a numerical calculation method about fixing seats of dampers on aerial conductors by calculating the amplitude ratio, so a new design method is given in the preventing conductors from aeloian vibration and construction of transmission line.

Key words: aerial conductor, aeolian vibration, damper, amplitude ratio