The movable parts of the distribution box shall be opened and closed flexibly. The coating or coating shall not be damaged during the opening and closing process. The opening angle shall not be less than 90 degrees. The door lock shall be concealed. The door lock shall be firm and reliable without obvious shaking after locking. The door hinge shall be metal chrome plated. When the door length is greater than 1.2m, three hinges shall be installed, and two hinges can be used when it is less than 1.2m. The hinge shall have sufficient load-bearing capacity, The distribution box shall not be deformed when it bears four times the load (not less than 10kg).

Electric control cabinet is a control cabinet (box) that assembles switchgear, measuring instruments, protective appliances and auxiliary equipment in closed or semi closed metal cabinet or screen according to electrical wiring requirements. Its layout shall meet the requirements of normal operation of power system, facilitate maintenance and do not endanger the safety of personnel and surrounding equipment. Including (distribution cabinet) (distribution box) (electrical control cabinet), etc. during normal operation, the circuit can be connected or disconnected with the help of manual or automatic switch. In case of fault or abnormal operation, cut off the circuit or alarm with the help of protective appliances. The distribution box can display various parameters in operation through measuring instruments, adjust some electrical parameters, and prompt or send signals for deviation from the normal working state. It is commonly used in various power generation, distribution and substation

The distribution box is divided into power distribution box and lighting distribution box, which is the last level equipment of the distribution system. The distribution box is to assemble the switchgear, measuring instruments, protective appliances and auxiliary equipment in a closed or semi closed metal cabinet or panel according to the electrical wiring requirements to form a low-voltage distribution device. During normal operation, the circuit can be connected or disconnected with the help of manual or automatic switch. In case of fault or abnormal operation, cut off the circuit or alarm with the help of protective appliances.