The operation class is usually divided into mechanical, electrical, furnace, coal and chemical majors, and is responsible for the production and maintenance of each process.
The maintenance team is also divided according to the specialties of machinery, electricity, furnace, coal and chemistry. Each major has a workshop, and each workshop has several sub-teams. For example, there are high-voltage classes, transformer classes, switch classes and motor class relay protection classes in the electrical workshop. Boiler workshop has ontology class, hoisting class, welding class, fan class, etc. Steam turbine workshop has speed regulating class, water pump class, ontology class and lifting class.
The maintenance team of small power plants will not be so meticulous. Many large power plants adopt the organizational system of business divisions, regardless of workshops, but the nature of the team has not changed.