Introduction

Every three years, the National Electrical Code® (NEC®) is revised and expanded. Initially the NFPA® received 3,730 public suggestions for changes, which resulted in 1,400 first revisions. There were 1,930 public comments submitted in response to these 1,400 first revisions, resulting in 635 second revisions. Changes included editorial clarification, expanded requirements, new requirements, deleted requirements, and the relocation of other requirements. Nine new articles were proposed, and four new articles were added to the 2020 NEC. With the fast pace of technology, it’s more important than ever for anyone participating in the electrical industry to get up to speed with all the changes.

2020 National Electric Code (NEC)

• 5,600 Public Suggestions to 2017 NEC
• 2,035 Revisions Made
• Changes Include
  • Editorial Clarification
  • Expanded Requirements
  • New Requirements
  • Deleted Requirements
  • Relocation of Requirements
• Four New Articles Added

2020 NEC Major Additions

Article 242 Overvoltage Protection provides the general, installation, and connection requirements for overvoltage protection and overvoltage protective devices.
Article 311 Medium Voltage Conductors and Cable covers the use, installation, construction specifications and ampacities for medium voltage conductors and cable (Type MV).
Article 337 Type P Cable covers the use, installation, and construction specifications for up through 2000-volt Type P cable (armored and unarmored).
Article 800 General Requirements for Communications Systems combines common requirements previously found in Articles 800 (now Article 805) for communications circuits, 820 for community antenna television and radio distribution systems, 830 for network-powered broadband communications systems and 840 for premises-powered broadband communications systems into a new “general” article that applies to all of these articles unless modified by the forenamed articles.

Disclaimer

In this course the student will be presented an overview of the most significant changes found in the 2020 NEC. Although every effort has been made to the accuracy of the material presented, by no means shall the student use or substitute this material for the official 2020 NEC.

What to Expect

In this course the student will be presented an overview of the most significant changes found in the 2020 NEC. This is part 1 of a series of courses covering the changes and will progress through each chapter and its articles presenting the many important changes. The changes will be noted (underlined for deletion, cross-through for deletion) for easy recognition and a short synopsis of the reason for the change is presented as well.