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.

Stumped by the Code? NEC Requirements for Sizing Conductors for an Electric Water Heater 
Q. How do we size the conductors and maximum overcurrent protection for an electric water heater? Please give an example.
Definition of a Stand-Alone System
The provisions of Art. 690 apply to solar PV systems.
Identification Requirements for Interconnected Power Sources
Article 705 covers installation of one or more electric power production sources operating in parallel with a primary source(s) of electricity.
Control Space Lighting Requirements
Branch circuit wiring requirements for machine room or control room/machinery space or control space lighting and receptacles are outlined in Sec. 620.23.
Electrical Connection Marking Requirements
Section 110.14 of the 2014 NEC focuses on electrical connections.
Branch Circuit Voltage Limitations
Article 210 covers the requirements for branch circuits.
Grounding Electrode Burial Depth Requirements
Part III of Article 250 focuses on the grounding electrode system and grounding electrode conductor requirements
IMC and Dissimilar Metals
Article 342 covers the use, installation, and construction specifications for intermediate metal conduit (IMC) and associated fittings.
Code Q&A: GFCI Protection Requirements in a Dwelling Unit Garage  10
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.
Electrical Testing Feed
Join the Discussion on EC&M Talk

EC&M Webinars
Jul 21, 2015

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
Jul 14, 2015

Understanding the 2015 Edition of NFPA 70E and the Arc Flash Hazard

Get more information on the important changes to the 2015 edition of NFPA 70E. More specifically, this event will address hazard analysis and FR clothing performance testing, focusing on the quantification of incident energy and ATPV (or Arc Rating)....More
EC&M Learning Center

Connect With Us

Sponsored Introduction Continue on to (or wait seconds) ×