| 摘要 |
PURPOSE: A high voltage switchboard, a low voltage switchboard, a cabinet panel, and a MCC(Motor Control Center) having an earthquake resistant device is provided to protect a switchboard from external vibration by remarkably reducing impacts delivered to the switchboard. CONSTITUTION: An earthquake resistant device(100) in a switchboard supports to separate an electric device(200) from a floor side. The earthquake resistant device holds up the electric apparatus of medium to large sizes installed on the floor side of a high voltage switchboard, a low voltage switchboard, a cabinet panel, and a MCC(Motor Control Center) in a standing state. The earthquake resistant device includes a plurality of floor fixing frames(110) fixed on the floor side, a supporting board(120) combined with a lower portion of the switchboard, and a plurality of damping units(130) flexibly holing up the supporting board. The damping units include a buffer member combined with a ball-stud, a base block, and a lower portion of the base block. |
