A unique approach to diagnosing and repairing commercial/industrial electrical equipment, from motors, computers, elevators, and fire alarm systems to heavy-duty ovens and audio equipment If you are a construction or maintenance electrician who often get called to fix malfunctioning industrial electrical equipment when specialized technicians aren't available, this is the perfect guide for you. Troubleshooting and Repairing Commercial Electrical Equipmentuses a unique diagnostic approach based on the difficulty of each procedure and the probability of its success. This practical resource will help you become faster, more efficient, and able to achieve a much higher success rate in restoring large electrical equipment without damaging it, introducing an additional defect, or creating a hazard. The book also discusses licensing and certification, as well as different measures that should be taken to insure that a UL or other agency listing is not voided. Presents a new system of diagnostics Gets gradually more sophisticated, starting with basic electrical theory, and building to include mathematical equations where necessary Includes separate chapters on elevators, fire alarm systems, motors, large-scale stereo equipment, and industrial appliances Discusses related licensing and certification Written by a Journeyman Electrician and with more than 35 years of experience