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Mike Holt’s Illustrated Changes to the NEC 2020
Changes to the NEC 2020 by Mike Holt
(Includes Digital Ans Key)


2020 Code Change Library, Book w/4 DVDs
Code Change Library
(Book + 4 DVDs)
 $279.00 $325.00


2020 NEC and Related
2020 NEC and Related

Analysis of Changes, 2020 NEC
Analysis of Changes,
NEC 2020

Ugly's Electrical Reference Book based on the 2020 NEC
Uglys Electrical Reference Book (2020)

Mike Holt's 2020 Electrical Exam Preparation Textbook
2020 Electrical NEC Exam Preparation Textbook

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

RACK-A-TIERS Specialty Electrical Tools

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Changes to the National Electrical Code, 2020 NEC

by Mike Holt

Hundreds of full-color detailed graphics to reinforce those difficult concepts and provide instant understanding of Changes to the 2020 National Electrical Code (NEC)

Textbook features include:

  • Hundreds of Illustrations. Detailed instructional images display the Code change in an applied setting.
  • Color Icons. Explanatory icons that help you identify the specifics of each change, along with easy-to-understand explanations.
  • In-depth Analysis. The rule is explained along with background information on the purpose of the change.
  • Insightful Author’s Comment. Special notes provide clarification of the rule and highlight its application in the real world.
  • Practical Examples. Reinforce your understanding of the change with a simulated real-life problem.
  • Practice Questions. Test your knowledge and understanding.

If you need to learn the new Code, you need this book. The perfect reference for Code Change or CEU classes

Sample Graphic
Sample Graphic



How to Use This Textbook

How to Use the National Electrical Code

Global Changes in the 2020 National Electrical Code

Article 90—Introduction to the National Electrical Code

Chapter 1—General

Article 100— Definitions.

Article 110— Requirements for Electrical Installations

Chapter 2—Wiring and Protection

Article 200— Use and Identification of Grounded Conductors

Article 210— Branch Circuits

Article 215— Feeders

Article 220— Branch-Circuit, Feeder, and Service Calculations

Article 225— Outside Branch Circuits and Feeders.

Article 230— Services

Article 240— Overcurrent Protection

Article 242Overvoltage Protection

Article 250— Grounding and Bonding

Chapter 3—Wiring Methods and Materials

Article 300— Wiring Methods

Article 310— Conductors for General Wiring

Article 312 Cabinets, Cutout Boxes, and Meter Socket Enclosures

Article 314— Outlet, Device, Pull and Junction Boxes, Conduit Bodies, Fittings, and Handhole Enclosures

Article 320— Armored Cable: Type AC

Article 330— Metal-Clad Cable: Type MC

Article 334— Nonmetallic-Sheathed Cable: Type NM

Article 336Power and Control Tray Cable (Type TC)

Article 338— Service-Entrance Cables: Types SE and USE

Article 340— Underground Feeder and Branch-Circuit Cable (Type UF)

Article 342— Intermediate Metal Conduit: Type IMC

Article 344— Rigid Metal Conduit: Type RMC

Article 348— Flexible Metal Conduit: Type FMC

Article 350— Liquidtight Flexible Metal Conduit: Type LFMC

Article 356— Liquidtight Flexible Nonmetalic Conduit: Type LFNC

Article 358— Electrical Metallic Tubing: Type EMT

Article 380— Multioutlet Assemblies

Article 392— Cable Trays

Chapter 4—Equipment for General Use

Article 400 Flexible Cords and Flexible Cables

Article 402 Fixture Wires

Article 404— Switches

Article 406— Receptacles and Attachment Plugs (Caps)

Article 408— Switchboards and Panelboards

Article 410— Luminaires, Lampholders, and Lamps

Article 411 Low-Voltage Lighting

Article 422— Appliances

Article 424— Fixed Electric Space-Heating Equipment

Article 430— Motors, Motor Circuits, and Controllers

Article 440— Air-Conditioning and Refrigeration Equipment.

Article 445— Generators

Article 450—Transformers

Article 480—Storage Batteries

Chapter 5—Special Occupancies

Article 500— Hazardous (Classified) Locations

Article 501— Class I Locations

Article 502— Class II Locations

Article 503— Class III Locations

Article 511 Commercial Garages, Repair and Storage

Article 514— Motor Fuel Dispensing Facilities

Article 517— Health Care Facilities

Article 518— Places of Assembly

Article 525— Carnivals, Circuses, Fairs, and Similar Events

Article 547— Agricultural Buildings

Article 550— Mobile Homes, Manufactured Homes, and Mobile Home Parks

Article 555— Marinas, Boatyards and Docking Facilities

Article 590— Temporary Installations

Chapter 6—Special Equipment

Article 600— Electric Signs and Outline Lighting

Article 620Elevators, Escalators, Moving Walks, Platform Lifts and Stairway Chair Lifts

Article 625Electric Vehicle Power Transfer System

Article 645— Information Technology Equipment (ITE)

Article 680— Swimming Pools, Fountains, and Similar Installations

Article 690—Solar Photovoltaic (PV) Systems

Article 691Large-Scale Photovoltaic (PV) Electric Supply Stations

Article 694—Wind Electric Systems

Article 695— Fire Pumps

Chapter 7—Special Conditions

Article 700— Emergency Systems

Article 701— Legally Required Standby Systems

Article 702— Optional Standby Systems

Article 705—Interconnected Electric Power Production Sources

Article 706Energy Storage Systems

Article 710 Stand-Alone Systems

Article 712Direct Current Microgrids

Article 725— Remote-Control, Signaling and Power-Limited Circuits

Article 760— Fire Alarm Systems

Article 770— Optical Fiber Cables and Raceways

Chapter 8—Communications Systems

Article 800— Communications Circuits

Article 805General Requirements for Communications Circuits

Article 810— Radio and Television Satellite Equipment

Article 820— Community Antenna Television (CATV) and Radio Distribution Systems (Coaxial Cable)

2020 National Electrical Code Changes Review Quiz

pages, 731 Illustrations
100 Practice Questions

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2020 NEC & Related Reference & Study Guides
2020 NEC & Related Reference & Study Guides

20BK / 9781950431014

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