| 摘要 |
A damping spacer for overhead conductors comprises at least two rigid spacing arms, with each arm having means for clamping the same to a respective conductor. Each arm is provided with an integral hub structure for holding a composite elastomer damping element, the hub structures and damping element being mechanically held together by a pin means extending through the hub structures and damping element. The damping element is comprised of an inner structure made of a relatively soft elastomer material and an outer structure made of a relatively hard elastomer material. The soft elastomer is effective to dampen low amplitude, high frequency aeolian vibration, while the relatively hard elastomer is effective to dampen high energy, wake-induced oscillations in a conductor bundle. The hard material also serves as a stop mechanism to limit relative motion of the arms and hub structures. This provides protection for the soft elastomer and prevents clashing of the metal parts of the spacer. |
