①Home page. Its content includes the catalog of electrical engineering drawings, illustrations, equipment schedules, design notes and so on. Legends are generally only listed in this set of construction drawings involved in some special legends. The detailed list of equipment only lists the name, model, specification and quantity of some major equipment of the electrical project for ordering reference. Design description mainly explains the electrical engineering design basis, the basic guiding principles and principles, supplement the construction drawings failed to show the characteristics of the project, installation methods, process requirements, special equipment installation methods and other precautions. Electrical drawings of the first page of the reading, in order to grasp the whole picture of the project, should be carefully read.
② electrical system diagram. Performance of the entire project power supply program and power supply, it is more centralized to reflect the scale of the electrical engineering.
3 electrical schematic diagram. Performance of a specific piece of equipment or system of electrical work, to guide the installation of equipment and systems, wiring, commissioning, use and maintenance. Electrical schematic diagram is an important part of the electrical engineering diagram, is the focus of the reading and difficult.
4 plan. Performance of the project a variety of electrical equipment and line layout of the general plan, is an important basis for the construction of electrical installation. The plan includes the general plan of external power and the system plan. External power plan is based on the general plan drawn by the building professionals, drawing substations, overhead lines, underground power cables and other specific locations and indicate the construction methods and other content. In some general plans, also indicates the area of the building, electrical load classification, electrical equipment capacity.