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2023 Understanding the NEC, Volume 1 Articles 90-480
Understanding the NEC, Volume 1 - 2023
(Includes Digital Ans Key)



2023 Understanding the NEC, Volume 2 Articles 500-810
2023 Understanding the NEC, Volume 2 Articles 500-810

2023 Master Exam Preparation Book Package
2023 Master Exam Preparation Book Package

2023 Journeyman Exam Preparation Book Package
2023 Journeyman Exam Prep Book Package

2023 National Electrical Code (NEC)
2023 National Electrical Code (NEC)

Understanding NEC Requirements for Bonding and Grounding 2023 NEC
Mike Holt's Bonding and Grounding 2023 NEC


Unique and Innovative Tools for Electricians, Electrical Contractors, Maintenance and Telecom Professionals
Tools for Electricians

RACK-A-TIERS Specialty Electrical Tools

Electrical Tools


2023 Understanding the NEC, Volume 1 Articles 90-480

by Mike Holt

Mike Holtís Illustrated Guide to Understanding the National Electrical Code, Volume 1 has proven itself in the field and in the exam room.

Compliance with the National Electrical Code is a major concern for todayís engineers, designers and electricians. - Updated to the 2023 NEC

On the one hand, you need to keep job costs down. On the other hand, your electrical projects must meet Code. And if you are an electrical inspector, youíve got to ensure compliance with the Code in a way that is fair, accurate, equitable, and consistent.

The need to understand and accurately apply the NEC is great. How can you make sure you get this right? The answer is Mike Holtís Illustrated Guide to Understanding the National Electrical Code.

No other textbook takes you step-by-step through NEC articles like Mikeís authoritative Understanding the National Electrical Code textbooks. What makes this book so effective is the clear writing style, the Authorís Comments, and the amazing detailed full-color illustrations that help you visualize the concepts being discussed.

The chapter questions help you test your knowledge as you go. This book sets the standard in NEC education, and is used extensively throughout the country.

Sample Graphic
Sample Graphic

Volume 1 Highlights:

  • Article 90. Know the purpose and scope of the NEC, and understand how itís arranged so you can quickly find what you need.
  • Chapter 1. Become familiar with the general requirements that apply to all installations. Youíll understand NEC terminology, which wiring methods are suitable, and the truth about space requirements.
  • Chapter 2. Know the requirements for neutrals, branch circuits, feeders, outside wiring, and services. Youíll obtain competence and confidence in sizing and applying circuit protection. Youíll also understand how grounding and bonding differ, and how to apply the concepts properly in the real world.
  • Chapter 3. Donít run afoul of the requirements for conductors, enclosures, fittings, cable assemblies and raceways. Do you know how the rules for EMT differ from those for RMC? What about armored cable? Which conductor is right for the job?
  • Chapter 4. Cords, switches, receptacles, panelboards, and lighting are just some of the Chapter 4 topics you must understand to avoid code violations. Donít let Article 430óthe largest of the NEC Articlesóbe a ďmotor mysteryĒ to you. And donít let the rules for generators, transformers, or capacitors continue to confuse you.

704 pages
1678 Illustrations
385 Practice Questions
Includes Digital Ans Key

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2023 NEC & Related Reference & Study Guides
2023 NEC & Related Reference & Study Guides


2023 NEC and Related
2020 NEC and Related
Electrical Estimating
Cost Guides & Cost Data
2017 NEC and Related
2014 NEC and Related
Residential Wiring Related

Industrial Related
Electrical Menu 1 2
Electrical & Construction Safety
Industrial Electricity
PLCs & Motor Controls
Electrical Exam Prep
Communications, LV, VDV, CATV
Electrical Theory
Electrical Calculations

Tools for Electricians
Electrical Supplies

Mike Holts Illustrated Changes to the NEC 2023
Mike Holts Illustrated Changes
to the 2023 NEC

978-1-950431-77-9 / 9781950431779
978-1-950431-07-6 / 9781950431076

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