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The National Electrical Safety Code (NESC) or ANSI Standard C2 is a United States standard of the safe installation, operation, and maintenance of electric power and communication utility systems including power substations, power and communication overhead lines, and power and communication underground lines. It is published by the Institute of Electrical and Electronics Engineers (IEEE). 'National Electrical Safety Code' and 'NESC' are registered trademarks of the IEEE. The NESC should not be confused with the National Electrical Code (NEC) published by the National Fire Protection Association (NFPA). The NEC is used for residential, commercial, and industrial building wiring.
General[edit]
Access to the NESC[edit]
The NESC is written as a voluntary standard. It is typically adopted as law by individual states or other governmental authorities. To determine the legal status of the NESC, the state public service commission, public utility commission, or other governmental authority should be contacted. The majority of the states in the United States adopt the NESC in some form or fashion. The state of California is an exception. The state of California writes their own utility codes titled General Order 95 (GO95) for overhead lines and General Order 128 (GO128) for underground lines. The current edition of the NESC (2017) is available as a spiral bound book containing approximately 345 pages. The NESC codebook can be purchased online from the publisher, from IEEE, or at various third party websites.
- 2017 Edition. Editor-in-Chief: Mark W. Earley Editors: Christopher D. Coache, Mark Cloutier, Gil Moniz, and Derek Vigstol Rewritten and extensively updated, the full-color 2017 edition NEC® Handbook is the most practical and powerful resource for electrical design and installation today. Success in the electrical industry depends on your grasp of NFPA 70®, National Electrical Code.
- FREE PDF—Mike Holt's 2017 NEC Index How to Use the National Electrical Code 2 Grammar and punctuation play an important role in establishing the meaning of a rule. The location of a comma can dramatically change the requirement of a rule such as in 250.28(A), where it says a main bonding jumper must be a wire, bus, screw, or similar suitable con.
National Electrical Safety Code® (NESC®) 2017 Edition Available August 2016! The National Electrical Safety Code (NESC) is revised every 5 years and published exclusively by IEEE. It sets the ground rules for practical safeguarding of persons during the installation, operation, or maintenance of electric supply and communication. 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. Jan 07, 2019 2017 National Electrical Code by National Fire Protection Association in the Form of A Model Public Safety Legal Code and Subsequently Enacted Into Law By Federal, State, and Local Governmental Jurisdictions. Gov.law.nfpa.nec.2017.pdf download. ZErrata70171.pdf download.
Format of the NESC[edit]
The NESC is written by various sub committees. The organizations represented, subcommittees, and committee members are listed in the front of the code book. The NESC contains the procedure and time schedule for revising the NESC, which are described in the back of the code book. The NESC has an interpretation committee that issues formal interpretations. The process for obtaining a formal interpretation is outlined in the front of the code book. The NESC is currently published on a 5-year cycle. Urgent safety matters that require a change in between code editions are handled through a Tentative Interim Amendment (TIA) process. Original work on the NESC began in 1913.
The NESC is structured into parts, sections, and rules. There are general sections at the beginning of the book covering the introduction, definitions, references, and grounding. Following the general section are four main parts including: substations rules (Part 1), overhead line rules (Part 2), underground line rules (Part 3), and work rules (Part 4).
NESC Handbooks[edit]
Two widely known handbooks are published on the NESC.
- Clapp, Allen J. NESC Handbook: A Discussion of the National Electrical Safety Code. Standards Information Network, IEEE Press. ISBN978-1-118-14539-5.
- Marne, David J. National Electrical Safety Code (NESC) 2017 Handbook (McGraw-Hill's National Electrical Safety Code Handbook). McGraw-Hill Education. ISBN978-1259584152.
External links[edit]
2017 Nec Electrical Code Pdf
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