Abstract: The paper described the design of thin wall cubic FLP enclosure for multi--purpose combination switch, which is intelligent. compact. suitable for use in centralized control of extensible belt conveyors’ auxilliary epuipment, and also for gateway transport.To satisfy explosion--proof regulations. reinforced rib’s dimensions are determined through calculation of plane stress, and of continuous beam with isospan and even load, strength check, etc. 更多还原