National Electrical Installation Standards

Standards as High as Your Own

?
Monday, June 11, 2018

Question:

Re: CQD answers published Wednesday, May 30, 2018 -Calculation Approval, Response to Comment No. 2

As an electrical inspector, I do much more than look at the physical installation. I am furnished a set of approved plans by the plans examiner. It is my job as an inspector to look at the calculations and make sure they are accurate and correct. (Mistakes do happen during the plan review process.) It is not uncommon for changes to take place during the construction phase of a project.  Often these changes will require a calculation to be revised. An inspector must be able to perform the required calculations to be able to determine if these changes will result in a code compliant and safe installation.

Ed Gross

A

Answer:

Hey Ed thanks for your follow up comment. You add a lot of good information about what an electrical inspector (AHJ) should do and show a great example of what all should be striving for. As previously stated not all areas have plans review requirements in place. Changes often occur, and we all make mistakes, that need to be reviewed and approved at the installation stage.

ABOUT CQD: NECA’s Code Question of the Day (CQD) is a leading National Electrical Code® forum for NECA and the industry. The CQD generates a lively dialogue and relative practical and Code-based responses to an ever-increasing and interactive audience.

IMPORTANT NOTICE: All answers are based on the latest edition of the National Electrical Code®, unless the question requests a response based on a specific edition. This correspondence is not a formal interpretation of the NEC®. Any responses expressed to the questions are opinions and do not necessarily represent the official position of NECA, NFPA, or any technical committee. In addition, this correspondence is neither intended, nor should it be relied upon, to provide professional consultation or services.

ABOUT CHARLIE: Charles M. Trout, better known as Charlie, was a nationally known NEC® expert and author. He served on several NEC® technical committees and is past chairman of CMP-12. In 2006 Charlie was awarded the prestigious Coggeshall Award for outstanding contributions to the electrical contracting industry, codes and standards development, and technical training. Charlie was also a member of NECA’s Academy of Electrical Contracting. Charlie’s experienced team of industry experts keep the CQD dialogue and discussions active and informative in the spirit of the man himself, as he wanted.

NECA STANDARDS: NECA publishes the National Electrical Installation Standards™ (NEIS™), a series of ANSI-approved performance and quality standards for electrical construction. Visit NECA-NEIS.org for more information. NEISÔ can be purchased in three formats: as paper books, on CD, or as electronic downloads.

NECA SAFETY PRODUCTS: NECA publishes valuable electrical safety books and CDs for the industry. Visit necanet.org/store to view or purchase NECA safety products.

 CONTACT US: To submit a Code question, subscribe, or unsubscribe from this list, please e-mail: codequestion@necanet.org.