The installation requirements for distribution boards (boxes) are: the distribution boards (boxes) should be made of non combustible materials; Production sites and offices with low risk of electric shock can install open type distribution boards; In processing workshops, casting, forging, heat treatment, boiler rooms, woodworking rooms, and other places with high risk of electric shock or poor working environment, enclosed cabinets should be installed; In hazardous workplaces with conductive dust or flammable and explosive gases, enclosed or explosion-proof electrical facilities must be installed; The electrical components, instruments, switches, and circuits of the distribution board (box) should be arranged neatly, installed firmly, and easy to operate. The bottom surface of the floor mounted board (box) should be 5-10 mm higher than the ground; The center height of the operating handle is generally 1.2-1.5m; There are no obstacles within a range of 0.8-1.2m in front of the board (box); Reliable connection of protective wires; There shall be no exposed bare charged bodies outside the board (box); Electrical components that must be installed on the outer surface of the board (box) or on the distribution board must have reliable screen protection
