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Saturday, March 25, 2023

Question:

Hi Charlie, Section 406.12(1)-(10) requires 15A & 20A receptacles (non-locking) in those listed areas must be tamper resisted. Does this requirement extend to receptacles that come as part of a listed modular/prewired furniture systems installed in any of those specified areas? Thanks, Jason Ritchie
A

Answer:

Jason, thanks for the great question. This gets a bit tricky. Section 110.3(A) requires electrical installations to be approved. This approval is likely done by a local AHJ. Section 110.3(A)(1) cites “Suitability for installation and use in conformity with this Code “ as one of the considerations that can be applied when approving installations. Additionally, Section 110.3(C) provides guidance regarding listing of electrical assemblies. If the product is listed, it may not be listed for this specific purpose/location. When there appears to be a conflict between the NEC® and the listing of a product it is always advisable to contact the manufacturer and the NRTL that provided the evaluation and listing.

ABOUT CQD: The Code Question of the Day (CQD) is NECA and ELECTRICAL CONTRACTOR Magazine’s flagship National Electrical Code (NEC®) public forum for the industry, sponsored by EATON. The daily distribution of Q&A generates a lively dialogue and shares relative Code-based practical responses.

SUBMIT YOUR CODE QUESTION: Click here to submit a question to for inclusion in an upcoming edition of the Code Question of the Day, or email codequestion@necanet.org. 

CHARLIE TROUT: 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. Even though Charlie passed away in October of 2015, his work continues in spirit. NECA continues to maintain this question forum for its many subscribers in memory and recognition of all his significant contributions to making the NEC what it is today.

NECA STANDARDS: NECA publishes the National Electrical Installation Standards™ (NEIS™), a series of ANSI-approved performance and quality standards for electrical construction. NEIS can be purchased in the NECA Store in three formats: a printed or  PDF download of a standard or, as an  annual subscription service.

NECA SAFETY PRODUCTS & PUBLICATIONS: NECA produces electrical safety publications and products for the industry including jobsite safety guides, handbooks and resource kits. View a full listing of available resources and products »

IMPORTANT NOTICE: Unless the question requests a response based on a specific edition, all answers are based on the latest edition of NFPA 70® National Electrical Code®.

This correspondence is not a formal interpretation of the NEC® and any responses expressed to the questions are opinions and do not necessarily represent the official position of NECA, NFPA, the NEC Correlating Committee any Code-making panel or other electrical technical committee. In addition, this correspondence is neither intended, nor should it be relied upon, to provide professional consultation or services. 

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