The National Electrical Safety Code® (NESC®)

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


2017 National Electrical Safety Code® (NESC®)

Produced exclusively by IEEE, the NESC specifies best practice standards for the safety of electric supply and communication utility systems at both public and private utilities. The NESC is revised every 5 years to keep the Code up-to-date with changes in the industry and technology.


The NESC sets the ground rules for practical safeguarding of persons during the installation, operation, and maintenance of power, telephone, cable TV, and railroad signal systems. It also includes work rules for the construction, maintenance, and operation of electric supply and communication lines and equipment. The NESC continues to be a definitive safety reference for utilities, their employees, contractors and manufacturers - as well as telephone companies, cable TV providers, railways and other organizations in the exercise of their functions as a utility. Download the NESC brochure (PDF)

What's New

The NESC 2022 Preprint available now!

The NESC 2022 Preprint contains over 500 change proposals and initial NESC Subcommittee recommendations that form the basis for soliciting public during an 8-month public comment period that opens 1 July 2019 and concludes 1 May 2020. Several key topics addressed through change proposals include: 

  • A comprehensive revision of Section 14, Storage Batteries to recognize new battery technologies, applications, and their hazards
  • A new section covering new and emerging electric generation station technologies focusing on photovoltaic (PV) generating stations
  • Consolidation of antenna rules into a single location to clarify the required antenna rules and to treat antennas as equipment consistently throughout the code
  • Clearance rules for guys and guy anchors
  • Strength and loading rules addressing wind maps, ice maps, 60-foot exclusion, etc.
  • Additive constant (k-Factor)

All public comments help to shape final recommendations made by NESC Technical Subcommittees to form the 2022 NESC.



Chinese Translation Adapted from the 2017 NESC® Handbook Premier Edition: Electrical Safety Manual for  Power and Communications Industries

This Handbook offers the NESC text along with commentary by contributors translated into Chinese. It is a valuable resource for professionals that want to better understand the NESC.

The National Electrical Safety Code® and the insightful contributor commentary provide informative details for the professional who wants to improve their understanding of:

  • The history of the Code’s Rules
  • Application of the Rules in real-world scenarios
  • Easy-to-follow layout with Rules and related commentary side-by-side
  • Responses to change proposals throughout the past 90 years



2017 NESC® Handbook, Premier Edition with Commentary in Spanish

This Handbook offers the NESC text in English along with commentary by contributors translated into Spanish. It provides a great resource for professionals that want to better understand the NESC.



2017 NESC® Handbook, Premier Edition

The 2017 NESC Handbook Premier Edition represents commentary by contributors, and is a next-generation tool for the professional who wants to improve their understanding of the NESC and includes a representation of NESC text. It gives users insight into:

  • A history of the NESC's Rules
  • How the Rules might be applied
  • Background interspersed and coincident with the represented portions of Code being discussed and highlighted
  • Responses to change proposals during the past 90 years



NESC® Handbook, Eighth Edition

Discusses Grounding Rules, General Rules, and Parts 1, 2, 3, and 4 of the 3rd (1920) through 2017 Editions of the NESC. No representation of the Code text is included.



NESC® Tabs

New for the NESC 2017 Edition, this set of 48 durable, self-adhesive tabs is compatible with both the NESC 2017 Edition and 2017 NESC Handbook. The tabs are color-coded to make locating important information fast and easy. The set includes easy-to-affix preprinted press-and-stick tabs and write-your-own blanks.



IEEE App for NESC® 2017 Edition

The NESC 2017 App available for iOS, Android, and Windows™ provides easy access to the Code via your mobile device or tablet. A great reference source for those in the field, the NESC 2017 App will include all of the content of the printed code with enhanced features:

  • Easy access to all Parts including frontmatter of the NESC
  • All referenced diagrams, charts, and drawings
  • Instant access to formulas, equations and calculations with context
  • Ability to quickly look up terms using the Dictionary feature
  • Access to media related to the NESC