About the Author

H. Ray Holder has worked in the electrical industry for over fifty years as an apprentice, journeyman, master, field engineer, estimator, business manager, contractor, inspector, consultant, and instructor. Mr. Holder is a graduate of Texas State University and holds a Bachelor of Science Degree in Occupational Education. He also holds a lifetime teaching certificate from the Texas Education Agency, in the field of Vocational Education. He is a certified instructor of electrical trades. His classes are presented in a simplified, easy-to-understand format for electricians. Since 1965, Mr. Holder has taught over 30,000 students at Austin Community College and the University of Texas, at Austin, Texas, Odessa College, at Odessa, Texas, Technical-Vocational Institute of Albuquerque, New Mexico, Howard College, at San Angelo, Texas and in the public school systems in Ft. Worth and San Antonio, Texas, as well as conducted electrical seminars throughout the United States. He is currently the Director of Education for Electrical Seminars, Inc. Mr. Holder is a former member of the National Fire Protection Association, International Association of Electrical Inspectors and retired member of the International Brotherhood of Electrical Workers.