Closed box of closed switchboard and assembly method of closed switchboard using same

摘要

The assembly time of the closed switchgear can be reduced, and the storage device and internal components can be attached to the closed switchgear without physical work or sue work, and the structural strength of the bottom of the closed box of the closed switchgear is improved. Provide closed boxes of closed switchboards that can be fitted.;The bottom part 20 is comprised by the bottom board 21a arrange | positioned in parallel with the installation surface of a closed switchboard, and the strength components 21b and 21c provided perpendicularly to the bottom board 21a, and the closed switchboard In this inward direction, at least two or more frames are separately separated so as to reduce the assembly time of the closed switchboard by parallelly and fixing the storage device and the internal structural member to each of the at least two frames.