After a preliminary introduction and a chapter on wiring and electricity safety procedures, this study text proceeds to offer a general coverage of single and polyphase alternating current electrical systems used to power factories, farms, small businesses, and homes. Electrical power, from its generation to its application, is discussed, with the greatest emphasis in the text placed upon helping students to learn to construct, control, and color code interior wiring circuits through low voltage simulation exercises and application of basic principles. Practical switching arrangements are diagrammed, and the differences between parallel and series circuits are explained. The text contains a recommended reading list, procedures for carrying out an electrical needs assessment, an order sheet, a guide to symbols used, and an appliance consumption rating chart. (CP)