SEISMIC ISOLATION DEVICE FOR A SWITCH OF THE TYPE USED IN HIGH-VOLTAGE ELECTRIC SYSTEMS

摘要

A seismic isolation device is described, which is adapted for application to the base of a switch for a high-voltage electric system, characterized in that it comprises:
- a first metallic plate (1), square in shape, adapted to be fixed to a basement;
- a second metallic plate (2), adapted to be fixed to the switch base;
- four dampers/isolators of the wire-rope type (3), connected between said first and second plates, mutually arranged at the vertices of a square, and oriented at a 45° angle relative to the sides of said first plate.