Mike Holt’s Illustrated Guide to Understanding the NEC, Vol. 1 & 2, 2020 NEC

by | 5 Aug 2026

Understanding the National Electrical Code, Vol. 1 (textbook), 2020 NECISBN-13 : 978-1950431076Understanding the National Electrical Code, Volume 2 textbook, 2020 NEC ISBN-13 : 978-1950431083Publisher : Mike Holt Enterprises (January 1, 2020)Language: : English Volume 1: The need to understand and accurately apply the NEC is paramount. How can you make sure you get this right? What makes this book so effective is the clear writing style, the Author’s Comments, the amazing detailed full-color illustrations that help you visualize the concepts being discussed, and the examples that are broken down step-by-step. 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. Volume 1 highlights:Article 90. Know the purpose and scope of the NEC and understand how it’s arranged so you can quickly find what you need.Chapter 1. Become familiar with the general requirements that apply to all installations. You’ll 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. You’ll obtain competence and confidence in sizing and applying circuit protection. You’ll also understand how grounding and bonding differ, and how to apply the concepts properly in the real world.Chapter 3. The requirements for conductors, enclosures, fittings, cable assemblies and raceways are many, and the rules for wiring methods may vary with each type. 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 topics in Chapter 4 you must understand to avoid Code violations. Don’t let Article 430—the largest of the NEC Articles—be a “motor mystery” to you. And the rules for generators, transformers, and capacitors are clarified so they’ll not continue to confuse you. Volume 2: This ground-breaking textbook provides you with the rock-solid foundation of NEC knowledge that you need to do your job with accuracy and confidence. What makes this book so effective is the clear writing style, the Author’s Comments, and the amazing detailed full-color illustrations that help you visualize the concepts being discussed. The chapter questions and final quizzes help you test your knowledge as you go.This textbook covers Article 500-820 (excluding Article 690), based on the 2020 NEC. Volume 2 highlights: Chapter 5. Many people struggle to understand the requirements for special occupancies, but if you study the illustrations and explanations in this book, you’ll clearly understand them. Chapter 6. What exactly is “Special Equipment”? Learn the additional measures needed to ensure the safeguarding of people and property. Chapter 7. You’ll understand and be able to distinguish between power systems, interconnected power sources, and low-voltage, limited energy systems. Chapter 8. Learn the requirements for Communications Systems such as telephones, radio and TV antennas, CCTV and CATV systems and when they are exempt from the NEC. This book provides a comprehensive education on the Code – no other textbook takes you step-by-step through those articles like Mike’s authoritative Understanding the National Electrical Code textbooks. The chapter questions and final quiz help you test your knowledge as you go. This book sets the standard in NEC education, and is used extensively throughout the country. Digital Answer keys access code (STICKER) are included with all Mike Holt books.