Mike Holt

NEC Trainer / Consultant,
Mike Holt Enterprises

Mike earned a masters degree in the Business Administration Program (MBA) from the University of Miami. He earned his reputation as a National Electrical Code (NEC) expert by working his way up through the electrical trade. Formally a construction editor for two different trade publications, Mike started his career as an apprentice electrician and eventually became a master electrician, an electrical inspector, a contractor, and an educator. Since 1975, he has provided custom in-house seminars for groups such as IAEI, NECA, ICBO, IBM, AT&T, Motorola, and the U.S. Navy. Mike has taught more than 1,000 classes on 30 different electrical-related subjects — ranging from alarm installations to exam preparation and voltage drop calculations. He continues to develop seminars, videos, books, and software as well as contributing monthly Code content to EC&M magazine.

Code Q&A
Q. Can I install 120V conductors in the same space with 277V conductors? If the answer is yes, what restrictions apply?
Code Q&A
Q. What are the vertical clearance requirements for overhead conductors over a roof?
Stumped by the Code? January 2011
Your most pressing National Electrical Code (NEC) questions answered
Code Q&A
Q. When can I use Table 310.15(B)(6)?
Code Q&A
Q. When I add a GFCI-protected receptacle in an existing circuit that does not have an equipment grounding conductor, can I add additional grounding-type receptacles on the load side of it?
Code Q&A
Q. What is the requirement for the location of receptacle outlets in the bathroom of a dwelling unit?
NEC Guidelines on Commercial Garages 1
Requirements for commercial garages per the National Electrical Code
Code Quandaries, December 2010
Your most pressing National Electrical Code (NEC) questions answered
Code Q&A 1
Q. Does the NEC allow switched receptacle outlets above a suspended ceiling for cord and plug connection of equipment?
Code Q&A
Q. What are the requirements for the point of attachment of a service drop?
Code Q&A
Q. What are the grounding requirements for equipment in a patient care area?
Code Q&A 4
Q. What are the supporting and securing requirements for Type MC cable?
Stumped by the Code? October 2010
Your most pressing National Electrical Code (NEC) questions answered
Solar Photovoltaic Systems — Part 2 2
Part 2 on Applying the electrical requirements in Art. 690 of the National Electrical Code (NEC) for photovoltaic systems
Code Q&A
Q. Can I install a panelboard in a bathroom or closet?
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