National Electrical Installation Standards

Standards as High as Your Own

The National Electrical Code is the bedrock of the electrical construction business.

Do you know all the ins and outs of the Code? NECA and Electrical Contractor magazine are pleased to present their daily online feature, “Code Question of the Day.”

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    Thursday, March 22, 2018


    I had an inspector tell me that all cable ties used in an indoor setting have to be low-smoke and flame retardant. Even in non-plenum areas. When I asked him where I could find that information he said it was an update in the 2014 NEC. I am unable to locate that. Any help would be appreciated.

    Patrick Gianotto Jr.

  • ?
    Wednesday, March 21, 2018


    If the main electrical service to a residential property is a 200amp all-in-one (meter main and 40 space distribution) can a 200amp circuit breaker be installed as overcurrent protection for a remotely located subpanel served by that same 200 amp main panel?

    Neal Harvey



    Hey Neal thanks for your question. If I understand it correctly and if a 200 ampere circuit breaker is available for that service equipment then yes. The conductors and overcurrent devices must be suitable for the load as stated in 215.2 and 215.3. The panelboard must also comply with 408.30 and 408.36.

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 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 to view or purchase NECA safety products.

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