Mike Holt

Mike
Holt
NEC Trainer / Consultant,
Mike Holt Enterprises
866

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.

Articles
Basic Requirements for Electrical Installations  1
Article 110 contains some of the most important but neglected parts of the Code. It also answers these basic questions:
Stumped by the Code? Rules for Securing and Supporting Raceways  2
Q. What are the NEC rules for securing and supporting raceways? Specifically compare EMT, FMC, and PVC.
Code Q&A: Smallest Approved Conductor  2
Q. What is the smallest conductor allowed by the NEC for branch circuits?
Code Q&A: Options Inside the Panel  2
Q. Can I make splices, taps, or install feed-through conductors in a panel?
Stumped by the Code? Types of Equipment Grounding Conductors Allowed by the NEC 
Q. What types of equipment grounding conductors does the NEC allow?
Small Wind Electric Systems 
When used for specific loads, small wind electric systems (SWESs) are often the sole power source.
Code Q&A: Minimum Cover Requirements 
Q. What are the minimum cover requirements for PVC and USE cable in commercial occupancies?
Code Q&A: Sizing EGC for Feeder Taps 

Q. What is the Code rule for sizing the equipment grounding conductor for feeder taps, and can you give me an example?

A. Equipment grounding conductors for feeder taps must be sized in accordance with Table 250.122, based on the ampere rating of the overcurrent device ahead of the feeder. In no case is it required to be larger than the feeder tap conductors [250.122(G)].

Stumped by the Code? Identifying a Class I Hazardous (Classified) Location 
Q. What is a Class I hazardous (classified) location?
The NEC and CATV/Radio Distribution Systems 
While Art. 810 provides the requirements for transmission or reception via an antenna, Art. 820 provides the requirements for the distribution of television and radio signals within a facility or on a property via cable.
Code Q&A: Splices in Conduit Bodies 
Q. When can I make a splice in a conduit body?
Code Q&A: Conductor Size for Class 1 Circuits 
Q. What is the smallest conductor allowed by the NEC for Class 1 control and signal circuits?
Radio and Television Equipment — Article 810 
Article 810 contains the installation requirements for the wiring of television and radio receiving equipment.
Code Q&A: NM Cable Rules  2
Q. Can I pull Type NM cable in a PVC sleeve located in a ground floor slab for the kitchen counter island?
Code Q&A: Ground Rod Electrodes  1
Q. What are the requirements related to the use of a ground rod for the grounding electrode system, including sizing of the grounding electrode conductor? (Answer based on 2011 NEC.)
Electrical Testing Feed
Join the Discussion on EC&M Talk

EC&M Webinars
Jul 21, 2015
Sponsored

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
Sponsored

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) ×