Mike Holt

Mike
Holt
NEC Trainer / Consultant,
Mike Holt Enterprises
709

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
Code Q&A 1
Q. Can I install a panel in a residential bathroom? What about in a bedroom? A. The NEC does not permit overcurrent protection devices to be located in the bathrooms of dwelling units, or guestrooms/guest suites of hotels or motels . However, nothing in ...
Code Q&A
Q. Can Table 310.15(B)(6) be used to size service conductors to a duplex, where there is no firewall separating the units? A. No. Table 310.15(B)(6) only allows a reduced-size service and feeder conductors for individual dwelling units of one-family, ...
The Ins and Outs of Optical Fiber Cable Installation
Several factors are driving the popularity of optical fiber cabling. Chief among those is the growth of high-tech applications that require the massive
Stumped by the Code?
Q. Do I need to use hospital-grade receptacles in a chiropractor's or medical examining room?
Code Q&A
Q. What are the limitations on the use of rigid nonmetallic conduit in an underground application serving a gasoline dispenser?
Code Q&A
Q. Can Table 310.15(B)(6) (reduced size wire for dwelling unit service) be used to size the service neutral conductor for a single-family dwelling?
Fire Alarm System Facts 5
Article 760 tells us how to install wiring and equipment for fire alarm systems, including all circuits these devices control and provide power to. What
Code Quandaries
Q. How far away must I locate a receptacle outlet from a shower or bathtub?
Top 50 NEC Rules
(A) Grounding Electrode. To provide a path to earth for lightning, each building or structure must have its disconnecting means grounded (earthed) to one of the following electrodes : Underground metal water pipe Metal frame of the building or ...
Code Q&A
Q. Do I have to use bonding jumpers around listed reducing washers?
Grounding and Bonding of Separately Derived AC Systems
A separately derived system is a premises wiring system with no direct electrical connection to conductors originating from another system . All transformers, except autotransformers, are separately derived because the primary circuit conductors do not ...
Code Q&A
Q. If an outdoor generator has a disconnect, do I need an additional disconnect where the conductors enter the building?
Stumped by the Code?
All questions and answers are based on the 2005 NEC. Q. Am I required to bond around reducing washers? A. Surprisingly enough, the answer is no. You don't
Article 725: Around the Circuit Part 2 1
In last month's Code Basics article, starting on page 56 of the September issue, we spent most of our time discussing Class 1 circuits. Now, it's time
Code Q&A
Q. Can I use 12-3 NM cable to wire the bathroom GFCIs and laundry circuit in a dwelling?

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