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 its internal members 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. Provided is a closed box of a closed switchgear which can be provided. A bottom plate 21a having the bottom portion 20 arranged in parallel with an installation surface of the closed switchgear, and a strength component portion 21b provided perpendicular to the bottom plate 21a. ) And (21c), and divided into at least two frameworks 30, 40 and 50 in the inward direction of the closed switchboard, and at least two frameworks 30, 40 and 50. Each of the receiving device and the internal constituent member are processed in parallel to reduce the assembly time of the closed switchboard.