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.

Raceway Fill Requirements for Coaxial Cables
Article 820 covers coaxial cable distribution of radio frequency signals typically employed in CATV systems.
NPLFA Circuit Power Source Requirements
Article 760 covers the installation of wiring and equipment of fire alarm systems, including all circuits controlled and powered by the fire alarm system.
Protection Requirements for Hydromassage Bathtubs
Electrical installations at hydromassage bathtubs shall comply with the provisions of Part VII of Art. 680.
Location of Service Equipment on Floating Structure
Article 555 focuses on installations at marinas and boatyards.
Locations Requiring Tamper-Resistant Receptacles 1
Article 406 covers the rating, type and installation of receptacles, cord connectors and attachment plugs.
Laundry Circuit Load Calculations
Feeder and service load calculation requirements can be found in Part III of Art. 220 in the 2014 NEC.
Code Q&A: Grouping of Neutral Conductors  6
Q. When multiple branch circuits are present in an enclosure, what does the Code require in regard to grouping of neutral conductors?
Defining Objectionable Current
The topic of objectionable current is covered in Sec. 250.6 of the 2014 NEC.
Securing and Supporting PVC
Article 352 covers the use, installation and construction specifications for rigid PVC and its associated fittings.
Electric Sign Disconnects
Article 600 covers the installation of conductors, equipment, and field wiring for electric signs and outline lighting.
Fire Rating of Door Leading to Transformer Vault
Article 450 outlines the installation requirements for transformers and transformer vaults.
Electric Sign Wiring Requirements
National Electrical Code quiz question on electric sign requirements.
Service Conductor Markings
Article 230 outlines the requirements for service conductors and equipment for control and protection of services.
Mobile Home Feeder Capacity
Part III of Art. 550 covers the service and feeder requirements for mobile and manufactured homes.
PV Equipment Grounding Conductors
The grounding requirements for solar photovoltaic (PV) systems are outlined in Part V of Art. 690.
Electrical Testing Feed

EC&M Webinars
Sep 10, 2015

ON DEMAND: An Effective Electrical Safety Program that Delivers

This hour-long webinar will cover the wording in various IEEE recommended practices, NFPA 70E and ANSI Z10 with an emphasis on what it means in terms of designing, implementing and managing an Effective Electrical Safety Program....More
Jul 21, 2015

ON DEMAND: Mitigation Methods for Arc Flash Hazards - Enhancing Personal Safety

The energy released during an arc flash event can result in severe damage to personnel, equipment, and property. While there are solutions which seek to improve the protection for each, this program will focus on personnel....More
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