The topic of this final work concerns the design of electrical installations and the construction of electrical installations, as well as the presentation of the budget and draft electrical project. In the introductory part of the final paper, design is described as an activity by experts and engineers who make various projects. Designing is described as a set of activities aimed at designing a complete project. Furthermore, the final paper describes the types of electrical installations with the aim of fully understanding the content of this paper. Elements of electrical wiring are described to help the reader understand what electrical wiring is made of. The operation of all electrical installation elements and the purpose of each electrical installation element are described. Electrical installation and protection of electrical installations are described in the chapter on the structure of electrical installations. The structure of electrical installations means the structure of electrical installations, telecommunication installations, antenna systems and protective installation systems. The technical description contained in this paper is based on the construction for which this project was designed. the technical description describes how the electrical installations of that facility will be performed. The calculations carried out in the paper are based on the construction project for which the technical design was made. All budgets are described to help them understand their importance. The draft documentation contained in this paper vividly describes the project that was carried out. The design documentation shows the layout of the wiring elements, the designed circuits and the wiring diagrams of the distribution boxes. Each project must be thoroughly described and designed in accordance with standards and regulations, and must meet the wishes and requirements of the investor. Therefore, we come to the conclusion that designing is a very demanding and complex process.