Ray C. Mullin is a former electrical instructor for the Wisconsin Schools of Vocational, Technical and Adult Education. Prior to his retirement, he served as district manager, regional manager, regional vice president and ultimately, director technical liaison for a major electrical manufacturer. He also served on the National Fire Protection Association (NFPA) Code Making Panel 4 of the National Electrical Code (NEC). A former journeyman and supervisor for residential, commercial and industrial installations, Mr. Mullin has taught electrical apprentice and journeyman courses, conducted numerous technical and code seminars, written many articles for electrical trade publications and consulted for electrical equipment manufacturers on legal issues. He is also a former member of the Executive Board of the Western Section of the International Association of Electrical Inspectors and a member of the Institute of Electrical and Electronic Engineers and NFPA, Electrical Section. Mr. Mullin attended the University of Wisconsin, Milwaukee School of Engineering, and Colorado State University.
Phil Simmons is the founder of Simmons Electrical Services, where he consults on the National Electrical Code® (NEC®) and other codes. He also writes, edits, illustrates and produces technical publications, and he previously provided plan review of electrical construction documents and inspection of complex electrical installations. In addition to developing training programs related to electrical codes and safety, Mr. Simmons has presented on these subjects at numerous seminars and conferences for universities, the National Fire Protection Association (NFPA), the International Association of Electrical Inspectors (IAEI), the U.S. Department of Defense and private clients. The author and illustrator of numerous textbooks on electrical topics, he has consulted on several lawsuits involving electrical injury and property damage. Mr. Simmons serves NFPA on Code Making Panel 5 of the NEC Committee (grounding and bonding), and he previously served on several other Code Making Panels, the NFPA Standards Council, the NEC Technical Correlating Committee, the IAEI and Underwriters Laboratories. He is a retired member of the International Brotherhood of Electrical Workers.
