Patent ID: 8881928

Claim:
A container for accommodating a high-voltage device therein, the container comprising: a casing having openings in an upper step surface and a lower step surface connected by a step; an upper step cover which is larger than the openings in the upper step surface, and mounted on the upper step surface to cover the openings; a lower step cover which is larger than the openings in the lower step surface, and mounted on the lower step surface to cover the openings; and a connecting member which connects the upper step cover to the lower step cover, wherein: a step height between the upper step surface and the lower step surface falls between a maximum permissible size value and a minimum permissible size value, an insertion opening penetrating in a direction of the step height of the casing is formed in one of the upper step cover and the lower step cover; a guiding member which is to be inserted into the insertion opening and has a length in the step height direction of the casing longer than the maximum permissible size value of the step height of the casing is provided in another one of the upper step cover and the lower step cover; and the connecting member has a first end fixed to the upper step cover and a second end fixed to the lower step cover, and connects the upper step cover to the lower step cover to thereby prevent the guiding member from being pulled out from the insertion opening, while permitting change in a relative distance between the upper step cover and the lower step cover in the direction of the step height of the casing.