This manual is a universal revised version of textbooks, manuals and reference books on the topic “Electrical engineering and electrical installation work” and includes in a condensed form all sections on this topic. It completely preserves the structure and methodology of presenting the material. The content of the manual fully complies with the current program for the course “Power supply of industrial enterprises”. The book, in a form accessible to students at a modern level, sets out all the basic concepts about electrical installations, information about the technology of electrical installation work, and fully covers safety issues in the production of electrical installation work. The great advantage of the manual is that it allows you to give a holistic view of the production of electrical equipment. and electrical installation work. It is equipped with drawings explaining the design of switchgears and electrical equipment, provides images of electrical installations in drawings and diagrams, and shows methods of installation work on electrical installations. The book is intended for students of vocational educational institutions and blue-collar workers in the electrical industry. It will assist students in their independent work on drafting abstracts and reports on practice with the topic “Electrical engineering and electrical installation work.”