| 摘要 |
Conventionally, electric devices have been installed to stand up on the bottom such as a high-voltage switchboard, a low-voltage switchboard, a distribution board, and a motor control center (MCC). The present invention relates to a switchboard (high-voltage switchboard, low-voltage switchboard, distribution board, MCC) including an earthquake-proof device capable of protecting the electric device from vibration based on earthquake or the like and with easy horizontal adjustment. The switchboard comprises: a rectangular frame (20) which is formed of a rectangular skeleton and is made of metal; a side support fixture (21) which is fixed to the lower portion of the side periphery of the rectangular frame (20) like a wall face; four bases (23) which are provided under the lower corners of the rectangular frame (20), respectively; bottom springs (24) which are interposed between the four bases (23) and the lower corners of the rectangular frame (20) to provide elastic force; a rectangular upper plate (11) which covers the upper end of the rectangular frame (20); bolts (12) which penetrate and lock the corners of the rectangular frame (20) to fix the upper plate (11) to the rectangular frame (20); four rings (13) which are provided at the lower corners of the upper plate (11), respectively; four hooks (14) which are fixed by hooking to the rings (13); four lines (15), one end of which is fixed to the hook (14) and the other end is fixed to the upper edge of a device body (110); and four side springs (22) which are positioned between the device body (110) and the side support fixture (21) to provide elastic force. |
