High-voltage distribution cabinets refer to electrical products used in power systems for generation, transmission, distribution, energy conversion, and consumption, serving functions such as switching, control, or protection. They operate at voltage levels ranging from 3.6kV to 550kV and mainly include high-voltage circuit breakers, high-voltage isolators and earthing switches, high-voltage load switches, high-voltage automatic reclosers and sectionizers, high-voltage operating mechanisms, high-voltage explosion-proof distribution devices, and high-voltage switchgear. The high-voltage switch manufacturing industry is a crucial component of the power transmission and transformation equipment manufacturing industry, holding a very important position in the entire power industry.