Mike Holt, NEC expert, and one of the top Electrical Instructors in the United States walks you through the2020 NEC Changes and gives you in-depth training on all the Electrical Calculations that you will need to pass your exam.
Mike Holt, NEC expert, and one of the top Electrical Instructors in the United States walks you through the2020 NEC Changes and gives you in-depth training on all the Electrical Calculations that you will need to pass your exam.
Mike Holt's Electrical Exam Preparation textbook has helped thousands of people across the country pass their electrical exams. It is used in Electrical Exam Prep classrooms across the U.S. as well as used by individuals studying on their own for an upcoming exam.
