National Electrical Installation Standards

Standards as High as Your Own

Thursday, April 20, 2017


What is the correct way to bond the neutral in a residential main circuit breaker panel. I have always ran the ground wire to the street side of the water meter & jumpered across the meter & connected to the neutral bar. I have also seen the ground connected to the closest cold water pipe & the water meter jumpered .the code isn't very clear on this, which way is correct. Is it also necessary to jumper the hot & cold water piping at the water heater? Keep up the good work, thanks

Jim Jablonski



Hey Jim thanks for your question and the kind words. The grounding electrode connection to a water pipe must generally be made with the first 5 feet of where the water pipe enters a building as stated in 250.68 (C)(1) but it is not limited to the street side of a water meter. A bonding jumper must be installed around any insulated joints and around any equipment likely to be disconnected as stated in 250.53(D) (1) and 250.68(B). Metal Water Piping Systems must be bonded as stated in 250.104(A). It does not specifically state that both the cold and hot water piping systems be bonded but each would likely be considered a separate piping system if they are not electrically connected together such as by the use of dielectric fittings at a water heater. Many plumbing fixtures are made of nonmetallic materials so usually do not provide continuity.

Behind the sunny days, there will be rain and rain, so never lose faith, and keep walking, going to the end of your path. super smash flash 2 bloons tower defense 5
  • best laptop for business | May 09, 2017
    Here I have listed 10 best laptop for gaming under 500 dollars 2017 with NVIDIA graphics card, 6th generation Intel core i5 processor, Windows 10 and ..
  • asu | Apr 30, 2017
    <a href="">photo clipping service</a>
  • dedi | Apr 30, 2017
    <a href="">egame untuk pc</a> the best answer to your question but I failed to do so.
  • geri | Apr 30, 2017
    Sedang mencari ht baofeng terbaru ?? silahkan berkunjung ke lapak saya
  • Alexandr Lukin | Apr 23, 2017
    Computer. All you need to do is follow the steps which are given in this guide. Showbox app is the most amusing app among all the Android programs which are similar to ShowBox; it’s accessible to all kind of platforms including Android, iPhone and now PC or Mac.
  • anjali | Apr 22, 2017
  • showbox movies | Apr 22, 2017
    ShowBox app is a great trend that has taken over the internet. Unlike most other apps on the genre which get you movies and TV shows to watch in return showbox movies
  • IMO for pc | Apr 21, 2017
    Download IMO for PC is a popular android and IOS video calling application that though earlier started as a messaging app but soon upgraded to video calling feature also
  • fdf | Apr 21, 2017
  • happy wheels | Apr 21, 2017
    Interesting article! Thank you for sharing them! I hope you will continue to have similar posts to share with everyone! happy wheels
  • Showbox App | Apr 21, 2017
    Showbox Apk Download for Android. Download Show Box Android App For Free. Watch Showbox Movies Online in 2017. Install Showbox on Android Now!!.
  • Windows 10 | Apr 21, 2017
     Download Windows 10 Activation keys which will help you get the device run into your device.
    1. Leave a comment


      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.

       CONTACT US: To submit a Code question, subscribe, or unsubscribe from this list, please e-mail: