I believe that people are not unfamiliar with the family distribution box, which plays an important role in the power consumption and safety of the whole family space. It can be used for the reasonable configuration of the electric energy in the family space and is convenient for the circuit disconnection. The power cabinet is a combination of electrical control cabinets that provide power for the normal operation of the whole machine, including fuses, circuit breakers, contactors, frequency converters, high-voltage cabinets, transformers, etc. The power distribution cabinet distributes the electric 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. Switch cabinet is an electrical equipment. The external line of the switch cabinet enters the main control switch in the cabinet first, and then enters the sub control switch. Each branch circuit is set according to its needs. For example, instruments, automatic control, motor, magnetic switch, various AC contactors, etc., some of them are equipped with high-voltage room and low-voltage room switch cabinet, with high-voltage bus, such as power plant, and some are also equipped with low cycle load shedding to ensure the main equipment. At the same time, it has a high level of safety protection, which can accurately and intuitively display the conduction status of the home circuit. The following small series for you to introduce the size standard of household distribution box. When the power box is only a power box or a small power box, when the input line is less than 10 square meters, if the number of switch bits is less than 20, the switch width will add up to 20 mm according to the width of the power box, the switch height plus 40 mm, and the switch depth plus 10 mm. When the box is only a box or small power unit, when the input line is less than 10 square meters, when the number of switch bits is more than 20, the box needs to be arranged in two rows of switches. The width of the switch plus 40 mm on each side adds up to the width and height of the box, increasing the switch height by 40 mm and the switch depth by 10 mm. When the power box is only a power box or a small power box, when the feeder line is less than 10 square meters, if the feeder switch needs a separate line, the width of the switch will be increased by 20 mm on each side, so that the width of the power box is the switch height plus 40 mm, and the depth is the switch depth plus 10 mm. When the electrical box is a power box or a power box, the algorithm is basically the same as the above. However, when the incoming line is larger than 10 square meters, the primary terminal of the incoming line should have enough space to accommodate the incoming line. When two rows of switches are arranged, the wiring alignment of the switches should be considered. The size structure of household distribution box has a great influence on the size of household distribution box. Generally speaking, the volume of household distribution box is larger, so its structure is more complex. In our daily use of household distribution box generally includes: distribution box, distribution cabinet, distribution panel, distribution panel, electrical cabinet and other parts, household distribution box centralized installation switch, instrument and other equipment group. With the continuous progress of society, there are more and more specifications of household distribution box at present, which can be appropriately selected according to the actual needs in daily use. With the development of science and technology, people's daily power system is more and more complex. At present, due to the different structure and technical parameters of distribution box, there are many kinds of distribution box. The products recommended by the manufacturer of household distribution box should meet the actual needs of users, and the size design of household distribution box should be carried out according to the requirements of users. If the user is not very familiar with the requirements of the distribution box, the size of the distribution box must be selected according to the needs.