Mike Holt

Mike
Holt
NEC Trainer / Consultant,
Mike Holt Enterprises
763

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
Weight Requirement for Handhole Enclosure Cover
Article 314 covers the installation and use of all boxes and conduit bodies used as outlet, device, junction, or pull boxes — depending on their use — and handhole enclosures.
Size Limitation for Type NUCC
Article 354 covers the use, installation, and construction specifications for nonmetallic underground conduit with conductors (NUCC).
Cable Tray System Uses Not Permitted
Article 392 covers cable tray systems, including ladder, ventilated trough, ventilated channel, solid bottom, and other similar structures.
Grounding Rules for Panelboards
Part III of Article 480 focuses on panelboards.
Luminaires Mounted on Combustible Low-Density Cellulose Fiberboard
Part XII of Article 410 this Article covers the special provisions for electric-discharge lighting systems of 1,000V or less.
Insulation of Batteries
The provisions of Art. 480 apply to all stationary installations of batteries.
Minimum Conductor Size for Motion Picture Equipment
The provisions of Article 540 apply to motion picture projection rooms, motion picture projectors, and associated equipment.
Emergency System Capacity
Article 700 applies to the installation, operation and maintenance of emergency systems.
Acceptable Uses for Tray Cable
Article 336 covers the use, installation, and construction specifications for power and control tray cable.
Selection of Overload Device for Continuous-Duty Motor
Part III of Article 430 focuses on motor and branch-circuit overload protection requirements.
Supplementary Overcurrent Protection
Article 240 provides the general requirements for overcurrent protection and overcurrent protective devices rated 1,000V or less, nominal.
Sizing a Supply-Side Bonding Jumper
Part V of Article 250 focuses on bonding requirements.
Locations Where NM Cable is Not Allowed
Article 334 covers the use, installation, and construction specifications of nonmetallic-sheathed cable.
Ratings of Shore Power Receptacles
Article 555 covers the installation of wiring and equipment in marinas and boatyards.
Conduit Seal Requirements in Class I, Division 1 Areas
Article 501 covers the requirements for electrical and electronic equipment and wiring for all voltages in Class I, Division 1 and 2 locations.
Electrical Testing Feed

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