Mike Holt

Mike
Holt
NEC Trainer / Consultant,
Mike Holt Enterprises
976

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
Grounding and Bonding, Part 1 
Article 215 covers the installation, conductor sizing, and overcurrent protection requirements for feeder conductors.
Stumped by the Code? Installing a Grounding Electrode Using Ground Rods  1
What does the Code require in regard to installing a grounding electrode using ground rods?
Code Q&A: GFCI Requirements 
Does the NEC require GFCI protection when replacing a non-GFCI receptacle in an existing building?
Code Q&A: Auxiliary Electrodes  2
What does the NEC mean by an auxiliary grounding electrode?
Feeder Conductors vs Branch-Circuit Conductors  7
Article 215 covers the installation, conductor sizing, and overcurrent protection requirements for feeder conductors.
Stumped by the Code? Grounding Electrode Conductor Rules 
If more than one electrode is available, what does the Code allow for connecting one grounding electrode to another electrode?
Code Q&A: Working Space Requirements  1
Does the Code allow an electrical room to be used for storage?
Code Q&A: Grounding Electrode Guidelines 
When does the Code allow the building metal structure to serve as a grounding electrode?
Code Q&A: Sizing the GEC 
What are the Code requirements for sizing the grounding electrode conductor (GEC) at a service to a rod type electrode and concrete-encased electrodes?
Stumped by the Code? Electrical Panel Working Space Rules 
What are the working space rules around the electrical panel?
Receptacles in Dwellings 
A single receptacle on an individual branch circuit must have an ampacity at least the rating of the overcurrent device
Code Q&A: Sizing Branch-Circuit Conductors  1
What is the Code requirement for sizing branch-circuit conductors?
Branch-Circuit Basics  2
Understanding the branch-circuit requirements in Art. 210 is critical to completing Code-compliant installations.
Stumped by the Code? Rules for sizing transformer secondary conductors? 
What are the NEC rules for sizing transformer secondary conductors?
Code Q&A: Location of Overcurrent Protection Devices 
Where does the Code require overcurrent protection to be located in a circuit?
Electrical Testing Feed
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