| 摘要 |
PROBLEM TO BE SOLVED: To secure safety at an early stage of maintenance and inspection work of a high voltage equipment. SOLUTION: The interlock device is provided so that an inverter unit may not be in a state of being exposed and is constructed of a conductive upper lid 560 having a shape corresponding to a box 500, an interlock detecting terminal 540 provided between the upper lid 560 and the box 500, a conductive bolt 570 for fixing the upper lid 560 to the box 500, and an insulating member 580 which connects the interlock detecting terminal 540 and the box 500 so that the interlock detecting terminal 540 and the box 500 may be electrically connected when the upper lid 560 is fixed to the box 550 by the bolt 570 and the interlock detecting terminal and the box may not be connected electrically when the upper lid 560 is not fixed to the box 500. COPYRIGHT: (C)2006,JPO&NCIPI
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