Produced exclusively by IEEE, the NESC specifies best practices for the safety of electric supply and communication utility systems at both public and private utilities. The NESC sets the ground rules for practical safeguarding of persons during the installation, operation, or maintenance of power, telephone, cable TV, and railroad signal systems. The NESC is revised every 5 years to keep the code up to date and viable.
The NESC Code covers basic provisions for safeguarding of persons from hazards arising from the installation, operation, or maintenance of conductors and equipment. It also includes work rules for the construction, maintenance, and operation of electric supply and communication lines and equipment. The standard is applicable to the systems and equipment operated by utilities, or similar systems and equipment, of an industrial establishment or complex under the control of qualified persons.
The NESC Handbook represents a next-generation tool for the professional who needs to understand the NESC. The handbook was developed for use at many levels in the electric and communication industries, including those involved in system design, construction, maintenance, inspection, standards development, and worker training. This step-by-step guide explains how to apply and meet the NESC rules for electrical supply stations and equipment, as well as overhead and underground electric supply and communications lines. It gives users insight into what lies behind the NESC’s rules and how to apply them. Unlike earlier handbooks, this new edition includes the code itself interspersed throughout the handbook, with interpretations and background information corresponding to the actual portions of code being discussed and highlighted. It includes input from numerous experts and members of the Subcommittees and Executive Committee of the NESC, as well as Allan Clapp.
2017 version of the handbook is also available in Spanish and Chinese.
The NESC Course Program is a series of 6 online courses that take an in-depth look at the rules, regulations, and changes made in the 2017 NESC edition. Taught by industry leaders who helped write the standard, these courses provide essential training for safeguarding power utility facilities and the people around them. Available exclusively through the IEEE Xplore digital library, courses are self-paced and delivered in a convenient, easy-to-use online learning environment. The first course, Changes to the NESC 2017 Edition, is now available.*
The NESC Code has been continually adapted to reflect innovations in technology and new challenges confronted in the field.
Major updates to the 2017 Edition include:
- Revising the purpose rule to include only the safeguarding of persons and utility facilities and clarifying the application rules.
- Deleting unused definitions and adding definitions for communication and supply space.
- Revising the substation impenetrable fence requirements.
- Adding an exception to exempt underground cable grounding requirements from the 4 grounds in each mile rule under certain conditions.
- Revising and reorganizing the guy insulator placement rules along with eliminating the voltage transfer requirements associated with them.
- Requiring a 40” vertical clearance from communication cables in the communication space if a luminaire is not effectively grounded.
- Deleting the conductance requirement for underground insulating jacketed grounded neutral supply cables and revising the grounding and bonding rules for supply and communication cables in random separation installations.
- Revising and reorganizing the Grades of Construction Table 242-1 that will now include service drops.
- Revising the strength rules to require that all conductors be considered for damage due to Aeolian vibration.
- Revising the rules in Part 4 to align with changes made to 29 CFR by the Occupational Safety and Health Administration (OSHA).
Features and Benefits
- A subscription includes: National Electrical Safety Code 2017, 2012, 2007, and 2002, as well as Preprints. Documents delivered in PDF via the IEEE Xplore digital library
- Full-text, searchable documents
- Robust search tools with a user-friendly interface
How to Subscribe
The 2017 NESC is available as an add-on to an existing subscription or as a stand-alone annual subscription via IEEE Xplore.
Choose the subscription option that best meets your needs:
- NESC Code annual subscription
- NESC Code + Handbook (Best Option)
Special Offer—Get Perpetual Access to the NESC and Save!
The perpetual access option includes unlimited access to the 2017 NESC. This option is the most cost effective option, providing you with up to 40% discount over yearly subscriptions for the next 5 years.
The IEEE Xplore publication date was 1 August, 2016.
* The NESC Course Program is sold separately. Your IEEE representative can provide a custom quote for available courses.