nec logo

Equipment Grounding, Part 1

The goal is to prevent having two systems that are at different potentials from each other.

Part VII of NEC Art. 250 provides the requirements for equipment grounding. Because the Code often uses the word “grounding” to mean either grounding (a connection to the earth, see Art. 100 definition) or bonding (a metallic connection, see Art. 100 definition) it’s easy to become confused.

To avoid that confusion, always think of where you are. If you’re on the load side, you bond and you never ground. If you’re on the supply side you will bond in som

Register to view the full article

Register on EC&M and gain access to premium content, including this article and much more.

Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.