The Small Power Distribution Unit is an important part of the household electrical system, which is used to distribute electrical energy from the power supply to various electrical equipment in the household. In modern society, Small Power Distribution Units are distributed in every household to meet the family's demand for electric energy. The installation of Small Power Distribution Units needs to consider a series of factors, such as power consumption, the number of household devices, safety factors, etc. During installation, strict safety regulations must be followed to ensure that the installed Small Power Distribution Unit complies with national standards and safety requirements. The Small Power Distribution Unit should be checked and maintained frequently to ensure its normal operation and safety. In addition, with the development and innovation of technology, modern Small Power Distribution Units can integrate more functions, such as intelligent control, energy monitoring and fault detection, etc. Therefore, the distribution of Small Power Distribution Units in every household not only provides basic electricity services, but also provides more convenience and choices for families.