Electrical Principles and Practices is an introduction to electrical and electronic principles and practices and their uses in residential, commercial, and industrial applications. This new edition has been reorganized to provide coverage of key electrical concepts at the beginning of the textbook. Other chapters have been expanded to include greater coverage on personal protective equipment, NFPA 70E®, basic first aid, test instruments, printreading, and programmable logic relays. The CD-ROM in the back of the book is designed as a self-study aid to enhance text content. The CD-ROM includes Quick Quizzes®, and Illustrated Glossary, Math Formulas, and Reference Material.