Electrical work carried out in two stages. In the first stage inside of buildings and structures are made works for installation of structures for cabling and wiring, installation of steel and plastic tubes for wirings. Of the first stage should be carried out in buildings and structures to reconcile with the production schedule at the same time the major construction work at the same time must be taken to protect the established structures and laid pipes from damage and contamination. In the second stage of the works on wiring and connecting cables and wires to terminals of electrical equipment. In the electrical room facilities of the second stage performed after the completion of construction and set decorating, and at the end of installation of plumbing devices, and in other rooms and areas – after the installation process equipment, electric motors and other power consumers, mounting technological, sanitary piping and ventilation ducts. Materials and products are delivered according to agreed with the wiring organization chart, which should include the supply of primary materials and products included in the specifications for the units to be manufactured on the assembly and complex-enterprise wiring organization. At each construction site during installation should be carried out trade journals production of electrical work, and at the completion of the work organization is obliged to pass electroassembly General contractor documentation requirements of the working committee. Preparations for the production of electrical work. Prior to the commencement of work at the facility must meet the following events: – The design and cost estimate was obtained Documentation – oglasovany delivery schedules for equipment, products and materials in view of technological sequence of production activities – the necessary room to accommodate teams of workers, engineering staff, production facilities, as well as for storage of materials and tools to ensure labor safety measures, fire safety and health wound environment – achieved acceptance by the act of construction of the facility for installation of electric lighting.