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.

Permitted Uses of PVC
Article 352 covers the use, installation, and construction specifications for rigid polyvinyl chloride conduit and associated fittings.
Lighting Outlet Requirements in Hotels or Motels
Lighting outlet requirements for hotels and motels are outlined in Sec. 210.70 of the NEC.
Interconnected Electric Power Production Sources
Article 705 covers installation of one or more electric power production sources operating in parallel with a primary source(s) of electricity.
Luminaire Restrictions in Clothes Closets
Article 410 covers the requirements for luminaires, lampholders and lamps.
Manufactured Building Requirements
Article 545 covers requirements for a manufactured building and building components.
Minimum Clearances for Electrical Equipment Near Spas and Hot Tubs
Part IV of Article 680 notes that electrical installations at spas and hot tubs shall comply with the provisions of Part I and Part IV of this article.
Minimum Size Fixture Wire Allowed by Code
Article 402 covers the general requirements and construction specifications for fixture wires.
Code Q&A: Definition of a Health Care Facility 
Q. How can you determine the feeder or service load for an existing installation? (Answer based on 2011 NEC.)
Shape of Cellular Concrete Floor Raceways
Article 372 covers the installation of cellular concrete floor raceways, the hollow spaces in floors constructed of precast cellular concrete slabs, together with suitable metal fittings.
Box Fill Requirements 
Article 314 covers the installation and use of all boxes and conduit bodies used as outlet, device, junction, or pull boxes.
Different Characteristics for Electrical Services 
Article 230 covers service conductors and equipment for control and protection of services and their installation requirements.
Branch Circuit, Feeder, and Service Wiring Methods 
To correctly apply Chapter 3 wiring methods, you must truly understand Article 300.
Sizing Equipment Grounding Conductors for PV Modules 
The grounding requirements for PV systems are outlined in Part V of NEC Article 690.
Separation Distance Between Communications Cables and Lightning Conductors 
Article 800 covers the installation requirements for communications circuits and equipment.
Elevator Disconnecting Means Requirements 
Emergency and standby power requirements for elevators are outlined in Sec. 620.91 of the 2011 NEC.
Electrical Testing Feed
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