1. NESC Update Present & Future
Quad-States Instructors
Louisville, KY
Jan 15, 2013

2. Current edition of the NESC is the 2012 edition.

3. Present
2012 Edition
Like other editions, comprised of Introductory info and 4 parts
Part 1 – Supply Stations
Part 2 – Overhead Electric Supply and Communications
Part 3 – Underground Electric Supply and Communications
Part 4 – Work Rules

4. Present Considered the “Bible” in the industry NOT a design guide
Intent is to set standards for construction, operation and maintenance
Allow cost effective construction methods
Protects the public
Protects the worker
Co-op world, RUS supplies design criteria based on NESC requirements

5. Present Updated every 5 years
Tremendous amount of work goes into updates
Subcommittees
Working Groups
IEEE Staff
In spite of everyone’s best efforts, errors and some confusion occasionally arise

6. Present Need to be aware of the following additional publications:
Errata – errors in code usually from transcription or proofreading
TIA – Tentative Interim Amendment
IR – Interpretation Request
All are available on NESC web site
Should check on periodically for updates
Errata – usually typos or proofreading errors that made their way into final print versions of the current edition. There are several for the 2012 edition.
Tentative Interim Ammendments are changes made to a rule to provide clearer understanding, simplification, clarification or to correct an anctual error with the rule such as an error with a formula or calculation. TIAs are only enforce for the edtion for which they were issued. They automatically become CPs for inclusion in the next edition of the code and the appropriate subcommittee will consider whether to adopt, change or reject the TIA for the next edition just like a CP.
A Interpretation Request is just that. Someone requested an explanation or clarification of a particular rule, or may ask whether a particular design or method meets or violates a particular rule. IRs are handled by a special interpretations committee. Depending on the nature of the IR they may or may not ask the subcommittee who wrote the rule to hold a mail ballot to approve an IR. IRs stay valid for as long as the rule it pertains to remains unchanged. Quite often though, they also become CPs.

7. Present Use this URL: Access to all info regarding NESC Free
Do not have to be an IEEE member
standards.ieee.com/nesc

8. Top of the NESC Home Page.

9. Scroll to bottom of page and you’ll find the links to errors, TIAs and IRs

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12. 2012 Errata (ft) instead of (m) in several table headers
Footnotes deleted in earlier editions now in use
Page 129, Figure 234-(b)

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14. Are currently no TIAs for the 2012 Edition of NESC
Are currently no TIAs for the 2012 Edition of NESC. But keep these in mind if you are ever referring to an older edition for purposes of justifying “grandfathering” that these TIAs exist. Make sure the rule you are using is not affected by a TIA. Also, while on the subject, always keep a copy of older editions of the NESC. May need in order to justify why a portion of your system was built/operated the way it was.

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16. There were 7 IRs issued in 2012
There were 7 IRs issued in Only 4 affect the 2012 Edition, the others affect the 2007 Edition. Still want to look at those too as the rules they affect may not have changed in the 2012 Edition and they would still be in effect.

18. 2012 IRs Currently 4 IRs affecting 2012 Edition:
IR566 – Rule 235C2b(1)(c)i clearances for wires, conductors, or cables carried on same supporting structures
IR568 – Rule 410A3b clarify “…clothing or clothing system…”
IR569 – Rule 215C4b use of insulators in anchor guys
IR570 – Rule 094B Grounding electrodes – Made electrodes

19. Future 2017 Edition Work has begun
IEEE now accepting Change Proposals (CPs)
CPs will be accepted until July 15, 2013
After that date CPs from the public will no longer be accepted, only those from various Working Groups (WGs)
Subcommittee 8 currently has one WG looking at application of work rules to generation

20. 2017 Edition Time Line Sept-Oct, 2013 – Subcommittees consider CPs
Sept 1, 2014 – Preprint published
May 1, 2015 – Final date for comments
Sept-Oct, 2015 – Subcommittees to reconsider actions based on comments and WGs
Jan 15, 2016 – submitted to NESC for approval and ANSI for public review
May 15, 2016 – submitted to ANSI for recognition as ANSI standard
Aug 1, Publication

21. Change Proposals
If you want to submit a CP there are a few things to keep in mind:
Anyone can submit
Can be for new rule, change to existing rule or deletion of existing rule
Must be done electronically through IEEE website
Must be on approved form
Must be in approved format
ONLY one change per submission

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23. Dead Link

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27. Get a blank template for submitting a CP or for making a later comment of the Preprint.

28. Template is in Microsoft Word Document format
Template is in Microsoft Word Document format. Simply download template and then fill in. Areas listed as “examples” in template can be deleted but rest of template should remain as is. It is VERY IMPORTANT to underline additions and strike through deletions or your CP will be rejected outright. Even if proposing and entire new rule, your proposal should be underlined. Also you will need to complete one of these for every change you are proposing.

29. Example of CP submitted for 2012 Edition

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35. Review Process Give an overview of the basic review process
Change Proposal
Accept
Modify and accept
Reject
Preprint
Review comments

36. Accepted by SC 8

37. Accepted w/ Modifications by SC 8

38. Rejected by SC 8

43. Comments
None of these three examples received any comments after the Pre-Print was published
No comments means no further action by the subcommittee
CP will go (or not go) into Final version of NESC as printed in Pre-Print
An a example of a Comment (CM)…

45. Final Draft
After all work completed by subcommittees, IEEE staff compiles all work into final draft version
Goes to NESC Committee and ANSI for review and approval
Can either accept or reject but cannot make changes