The National Electrical Safety Code® (NESC®)

The one-stop resource for the National Electrical Safety Code.

Education

Introduction to the National Electrical Safety Code® (NESC®)

This course will provide baseline knowledge of the NESC, its history, how it was established and how it has evolved in its more than 100 years of publication. You will also gain an understanding of the different sections of the Code, what the Code covers and what it does not cover, while finding out more about the future vision for the NESC.

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Changes to the NESC® 2017 Edition

This course provides in-depth information on all major revisions to the 2017 NESC, for all sections and parts: 

  • Definitions
  • Grounding Methods
  • Electric Supply Stations
  • Overhead Lines-Clearances
  • Overhead Lines-Strength and Loading
  • Underground Lines
  • Work Rules

Now available on Xplore

NESC® 2017: Introduction to Grounding

This course covers grounding requirements and grounding methods of the NESC that are to be applied to electric supply and communication utility systems. Upon completing this course, you will understand:

  • Electric supply and communication parts required to be grounded
  • Correct methods for grounding parts
  • How to determine appropriate grounding connections
  • How to determine appropriate materials for grounding conductors and electrodes
  • Under what conditions different types of electrodes may be most effective
  • How to identify which conductive items can be connected together and which cannot
  • How to determine appropriate connections between supply and communication grounding systems at served structures

Coming soon!

NESC® 2017: Rules for Installation and Maintenance of Electric Supply Stations

This course provides a baseline understanding of the NESC Part 1. Upon completing this course, you will understand:

  • Key considerations for electric supply stations and equipment
  • How to interpret a clearance table similar to NESC Table 124-1
  • Key requirements for transformers and regulators in supply stations
  • Key requirements for circuit breakers, switches and fuses in supply stations and
  • Key requirements for switchgear 

Coming soon!

NESC® 2017: Safety Rules for Installation and Maintenance of Overhead Electric Supply

This course provides a baseline understanding of the NESC Part 2. Upon completing this course, you will understand:

  • Different classes of lines and equipment and identify conflicts
  • Philosophy for joint-use consideration
  • Requirements for installing communication lines and equipment
  • Requirements for installing supply lines and equipment
  • Key terms, clearance requirements, spans, and sags
  • Factors affecting and methods of determining conductor temperature

Coming soon!

NESC® 2017: Safety Rules of the Installation and Maintenance of Underground Electric Supply

This course provides a baseline understanding of the NESC Part 3. Upon completing this course, you will understand:

  • Underground lines, equipment, and tunnels
  • Conduit, cable, supply, and communication systems
  • The construction and termination of supply cables
  • Installation of cables in underground structures

Coming soon! 

NESC® 2017: Work Rules for the Operation

of Electric Supply and Communications Lines and Equipment

This course covers work rules to be followed in the installation, operation, and maintenance of electric supply and communications systems. It also covers Appendix C; applications for Rule 250C, Tables 250-2 and 250-3. Upon completing this course, you will understand practical work rules as one of the means for safeguarding employees and the public from injury.

Coming soon!