National Electrical Installation Standards

Standards as High as Your Own

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.

  • ?
    Monday, January 24, 2022

    Question:

    Greetings and thank you for a great forum, considering NEC 210.52(A)(2)(1) with wall space defined as "space unbroken along the floor line by fireplaces" please interpret "fireplace" as to the be the indented opening of the wood or gas burning area of firebrick or metal or the entire wall of hearth area which can be sheetrock, brick, stone, wood, etc.

    Thank you.

    Kelly Stockwill

  • ?
    Friday, January 21, 2022

    Question:

    Hello and Thanks for this Blog.

    Does the NEC provide specific criteria for developing signs and labels addressing warning, caution, and danger? We are told that there are specific colors assigned for signs using those signal words. What does the NEC require?

    Michael Deitz

    A

    Answer:

    Hello Michael and thanks for the question. The NEC does provide information and guidance about criteria for developing signs and labels required by the NEC. Section 110.21(B) indicates that where caution, warning, or danger signs or labels are required by this Code, the labels shall meet the requirements in 110.21(B)(1) through (3). There is an important Informational Note referring to ANSI Z535.4 2011 which provides more specific guidelines for the development of these warning signs and labels. Criteria such as colors, font sizes, words, symbols, and locations are provided. See the full text of this section for the complete requirements.

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.

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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 Awardfor 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.

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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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