Which code article addresses grounding and bonding?

Which code article addresses grounding and bonding?

• A. Article 210
• B. Article 500
• C. Article 300
• D. Article 250

Answer: (D)

Grounding and bonding are safety practices that provide a low-resistance path for fault current and keep all exposed metal parts at the same electrical potential. The NEC assigns these requirements to Article 250, which specifically covers grounding and bonding of electrical systems, conductors, and equipment. Within this article you’ll find how the grounding electrode system is established (connections to earth), how equipment grounding conductors are run to devices and enclosures, and how bonding ties together metal components to prevent dangerous voltage differences. Other articles focus on different topics—branch circuits and receptacles are covered elsewhere, wiring methods and materials in another, and hazardous locations in yet another—so grounding and bonding responsibilities live in Article 250.

Grounding and bonding are safety practices that provide a low-resistance path for fault current and keep all exposed metal parts at the same electrical potential. The NEC assigns these requirements to Article 250, which specifically covers grounding and bonding of electrical systems, conductors, and equipment. Within this article you’ll find how the grounding electrode system is established (connections to earth), how equipment grounding conductors are run to devices and enclosures, and how bonding ties together metal components to prevent dangerous voltage differences. Other articles focus on different topics—branch circuits and receptacles are covered elsewhere, wiring methods and materials in another, and hazardous locations in yet another—so grounding and bonding responsibilities live in Article 250.