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.

Voltage Limitation Between Grouped Receptacles
Article 406 covers the rating, type, and installation of receptacles, cord connectors, and attachment plugs (cord caps).
FMC Requirements to Serve as an EGC
Part VI of Art. 250 covers equipment grounding and equipment grounding conductor requirements.
Percentage Fill Limitation: NonMetallic Surface Raceway
Article 388 covers the use, installation, and construction specifications for surface nonmetallic raceways and associated fittings.
Clearance Requirements Under Metal Roof Decking
Article 300 covers general wiring requirements for wiring methods and materials for all installations.
Code Q&A: Sizing an Equipment Bonding Jumper  1
Q. What are the rules for sizing an equipment bonding jumper sized for parallel feeder circuits in a cable?
Equipotential Bonding Requirements for Permanently Installed Pools
The provisions of Art. 680 apply to the construction and installation of electrical wiring for swimming pools, fountains, and similar installations.
Ampacities for Flexible Cords and Cables
Article 400 covers the general requirements, applications and construction specifications for flexible cords and cables.
Classification Level of Pit in Aircraft Hangar
Article 513 applies to buildings or structures that contain Class I or Class II liquids and where aircraft might undergo service, repair or alteration.
PV Storage Battery Requirements
Part VIII of Article 690 of the 2014 NEC focuses on storage battery requirements.
Equipment Grounding Conductor Serving Agricultural Building
Article 547 requirements apply to agricultural buildings and parts of buildings or adjacent areas of similar or like nature as specified in the scope.
Overcurrent Protective Device Sizing  3
Undersize your overcurrent protective device (OCPD), and normal operations might become impossible. Oversize your OCPD, and the whole place might burn down.
Stumped by the Code? NEC Requirements for GFCI Protection of Swimming Pool Pump Motors 
Q. What is the NEC requirement for GFCI protection of swimming pool pump motors?
Access to Service Disconnects
Part VI of Article 230 focuses on the disconnecting means of service equipment.
Wire Support Requirements in Fire-Rated Spaces
Article 300 covers the general requirements for wiring methods and materials for all wiring installations.
Marking of Equipment in Hazardous Locations
Article 500 focuses on electrical equipment installed in hazardous (classified) locations.
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