Mike Holt

Mike
Holt
NEC Trainer / Consultant,
Mike Holt Enterprises
948

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.

Articles
Article 695 and Fire Pumps 
In the NEC, the normal philosophy for circuit protection is to shut down equipment before allowing the supply conductors to overheat.
Stumped by the Code? Defining Overcurrent 
Q. What does the Code mean by “overcurrent”?
Code Q&A: Branch Circuit Overcurrent Protection 
What is the minimum size requirement for branch-circuit overcurrent protection?
Code Q&A: GFCI Requirements in Other Than Dwelling Units  1
NEC guidelines on GFCI requirements in locations other than dwelling units
Stumped by the Code? Requirements for sizing equipment grounding conductors to a motor branch circuit 
Q. How do I size the equipment grounding conductor to a motor branch circuit?
Article 690, Solar Photovoltaic Systems — Part 3 
We can summarize the rules for circuit sizing and overcurrent protection of PV circuits as follows
Code Q&A: Household Ranges and Cooking Appliances 
NEC guidelines on supplementary overcurrent protection
Code Q&A: Supplementary Overcurrent Protection 
NEC guidelines on supplementary overcurrent protection
Code Q&A: Overcurrent Protection for Ungrounded Conductors  1
NEC guidelines on overcurrent protection for ungrounded conductors
Stumped by the Code? Code installation requirements for raceway seals in Class I locations 
Q. What are the Code’s installation requirements for raceway seals in Class I locations?
Article 690, Solar Photovoltaic Systems — Part 2  1
You must provide ground fault protection for DC photovoltaic (PV) arrays
Code Q&A: Branch Circuit Requirements  1
NEC guidelines on whether guest rooms follow the same branch circuit requirements as dwelling units
Stumped by the Code? Code Rule for Sizing Short Circuit and Ground Fault Protection for a Motor Feeder  3
Q. What is the Code rule for sizing short circuit and ground fault protection for a motor feeder?
Article 690, Solar Photovoltaic Systems — Part 1  2
Article 690, consisting of eight Parts, applies to photovoltaic (PV) electrical energy systems, array circuit(s), inverter(s), and charge controller(s) for PV systems.
Code Q&A: Ground Fault Protection of Equipment 
NEC requirements for ground fault protection of equipment
Electrical Testing Feed
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