Electrical engineering manual tutorial materials. It brings together the standard specifications and technical materials related to electrical engineering. Electrical is a general term for disciplines or engineering fields such as the production, transmission, distribution, use, and manufacturing of electrical equipment. It is a science that uses electric energy, electrical equipment, and electrical technology to create, maintain, and improve limited space and the environment. It covers three aspects of electrical energy conversion, utilization, and research, including basic theory, applied technology, and facilities.