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: GFCI Protection Requirements in a Dwelling Unit Garage  15
Is GFCI protection required in a dwelling unit garage for a dedicated receptacle for a fixed appliance like a freezer or in the ceiling for a garage door opener?
Pendant Conductors for Incandescent Lamps
The rules for wiring luminaires and lampholders are outlined in Part VI of Article 410.
Installing Intrinsically Safe Equipment
The provisions of Art. 504 cover the installation of intrinsically safe apparatus, wiring, and systems for Class I, II, and III locations.
Approved Types of Luminaires for Pools
The provisions of Art. 680 apply to swimming pools, fountains and similar installations.
Enclosure Support Requirements
The provisions of Art. 314 cover the installation and use of all boxes and conduit bodies used as outlet, device, junction or pull boxes, and handhole enclosures.
Testing Legally Required Standby Power Systems
The provisions of Art. 701 apply to installation, operation, and maintenance of legally-required standby systems.
Circuit Requirements for Solar Photovoltaic Systems
The provisions of Art. 690 apply to solar PV electrical energy systems.
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.
Electrical Testing Feed
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