What are the three diagrams and two accounts of the power supply station?

AC diagram, DC diagram and patrol road map, equipment information account and customer information account. The three drawings of power supply station refer to the posting of the drawings of power distribution room, and refer to the exchange diagram, DC diagram and patrol road map, of which two accounts are the equipment information account and the customer information account. Therefore, the three diagrams and two accounts of power supply station are exchange diagram, DC diagram and patrol road map, equipment information account and customer information account. Power supply station belongs to the agency of power company, which is distributed in various towns and villages, and mainly carries out line maintenance service, power outage service, meter reading and electricity fee collection.