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.

ENT Marking Requirements
The _____ of conductors used in prewired ENT manufactured assemblies shall be identified by means of a printed tag or label attached to each end of the manufactured assembly.
Fulfilling Conductor Fill Requirements
When counting the number of conductors in a box, a conductor running through the box with an unbroken loop or coil not less than twice the minimum length required for free conductors shall be counted as _____ conductor(s).
Guarding of Live Parts
Entrances to rooms and other guarded locations containing exposed live parts shall be marked with conspicuous ______ forbidding unqualified persons to enter.
Identification of Grounded Conductor
Grounded conductors ______ and larger can be identified by distinctive white or gray markings at their terminations.
Attachment Height of Overhead Service Conductors
The minimum point of attachment of overhead service conductors to a building shall not be less than ______ above finished grade.
Approved Wire Type for Circus and Fair Applications
True or false? When installed indoors for carnivals, circuses, and fairs, flexible cords and flexible cables shall be listed for wet locations and shall be sunlight resistant.
Ground-Fault Protection of Equipment for Emergency Systems
True or false? The alternate source for emergency systems shall have ground-fault protection of equipment.
Ground-Fault Protection of Service Equipment
As defined by Sec. 230.95, the rating of the service disconnect shall be considered to be the rating of the largest _____ that can be installed or the highest continuous current trip setting for which the actual overcurrent device installed in a circuit breaker is rated or can be adjusted.
Receptacle Location Requirements for Water Circulation and Sanitation Systems
Single grounding type, GFCI-protected receptacles that provide power for pump motors related to the circulation and sanitation system of permanently installed pools shall be located at least ____ from the inside walls of the pool.
Securing and Protecting the GEC From Physical Damage
Section 250.64 of the 2014 NEC covers the installation requirements of grounding electrode conducts.
Securing Rules for Metal-Clad Cable
Article 330 covers the use, installation, and construction specifications of metal-clad cable, Type MC.
EMT Coupling and Connector Requirements
Article 358 covers the use, installation, and construction specifications for EMT and associated fittings.
Approved Wiring for Portable Luminaires
Article 410 focuses on luminaires, lampholders and lamps.
Minimum Conductor Size for Antennas
Antenna systems are the focus of Part II of NEC Article 810.
Code Q&A: Tap Conductor Rules in Dwelling Units 
Q. What are the tap conductor requirements to supply household ranges, wall-mounted ovens, and counter-mounted cooking units?
Electrical Testing Feed

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