With the continuous development of power system cabling process, cable branch box can be used to connect multiple branches under the condition of dense distribution of small-capacity independent loads, because the branch box cannot control each line independently.
The installation requirements of switch cabinet manufacturer’s distribution board (box) are: the distribution board (box) is made of non-combustible materials; Open distribution boards can be installed in production sites and offices with low risk of electric shock; Closed cabinets should be installed in processing workshops, casting, forging, heat treatment, boiler rooms, carpentry rooms and other places with electric shock danger or poor working environment;
Sealed or explosion-proof electrical facilities must be installed in dangerous workplaces with conductive dust or flammable and explosive gases; The electrical components, instruments, switches and lines of the distribution board (box) should be arranged neatly, installed firmly and operated conveniently. The bottom of the board (box) installed on the ground should be 5 ~ 10 mm higher than the ground;
The center height of the operating handle of switchgear manufacturers is generally 1.2~1.5m；; There is no obstacle in the range of 0.8~1.2m in front of the board (box), and the electrical components must be installed on the outer surface of the board (box) or the distribution board, and there must be reliable screen protection.
