The word "distribution box" must sound strange to most people, but people who have contact with it will not be so strange. Today, the distribution box manufacturer will introduce the basic knowledge of distribution box for you in detail!

The distribution cabinet (box) is divided into power distribution cabinet (box), lighting distribution cabinet (box) and metering cabinet (box), which are the last level equipment of distribution system. Power distribution cabinet is the general name of motor control center. The power distribution cabinet is used in the situation where the load is dispersed and the circuit is less; the motor control center is used for the occasion where the load is concentrated and the circuit is more. They distribute the electrical energy of a circuit of the upper power distribution equipment to the nearest load. This equipment shall provide protection, monitoring and control of the load.

(1) The first level power distribution equipment is called power distribution center. They are centrally installed in the enterprise's substation and distribute power to lower level distribution equipment in different locations. This class of equipment only relies on step-down transformer, so the requirements of electrical parameters are high, and the output circuit capacity is also large.

(2) Secondary power distribution equipment is the general name of power distribution cabinet and motor control center. The power distribution cabinet is used in the situation where the load is dispersed and the circuit is less; the motor control center is used for the occasion where the load is concentrated and the circuit is more. They distribute the electrical energy of a circuit of the upper power distribution equipment to the nearest load. This equipment shall provide protection, monitoring and control of the load.

(3) The final power distribution equipment is called lighting power distribution box. They are scattered small capacity distribution equipment far away from the power supply center.

What are the installation requirements? The installation requirements of distribution board (box) are as follows: the distribution board (box) shall be made of non combustible materials; the open type distribution board can be installed in the production places and offices with low risk of electric shock; the closed box and cabinet shall be installed in the processing workshop, casting, forging, heat treatment, boiler room, carpentry room and other places with high risk of electric shock or poor working environment; when there is conductive dust or flammable and explosive In gas hazardous workplaces, enclosed or explosion-proof electrical facilities must be installed; all electrical components, instruments, switches and lines of distribution board (box) shall be arranged in order, installed firmly and operated conveniently. The bottom surface of the board (box) installed on the ground should be 5 ~ 10 mm higher than the ground; the center height of the operating handle is generally 1.2 ~ 1.5 m; there is no obstacle within the range of 0.8 ~ 1.2 m in front of the board (box); the protection wire is connected reliably; there is no naked charged body exposed outside the board (box); the electrical components that must be installed on the outer surface of the board (box) or on the distribution board must have reliable screen protection.