| 摘要 |
PROBLEM TO BE SOLVED: To secure safety at an early stage of maintenance and inspection work for high-voltage equipment. SOLUTION: The interlock device 570 is provided so as to make an inverter unit into an unexposable state and includes an upper lid 502 having a shape corresponding to a casing 500, an interlock detection terminal 540 which is in an electrically connected state with the casing 500, when being in contact with the casing 500 and in an electrically unconnected state when it is not in contact with the casing 500, a bolt 566 for fixing the upper lid 502 to the casing 500, and a bracket 530 which restrains the bolt 566 from executing the operation for removing the upper lid 502, in a state with the interlock detection terminal 540 being brought into contact with the casing 500. COPYRIGHT: (C)2006,JPO&NCIPI
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