What section of the NEC covers grounding?

• A. Article 250
• B. Article 100
• C. Article 200
• D. Article 300

Answer: (A)

Grounding rules in the NEC are found in Article 250. This section covers both grounding the electrical system to the earth and bonding conductive parts to ensure they share a common potential. It includes the rules for the grounding electrode system (like ground rods and other electrodes), equipment grounding conductors that provide a low-impedance path for fault currents, and bonding requirements to prevent dangerous voltage differences between metal components. The purpose is to give a reliable path for fault current so protective devices trip quickly and people remain safe. Other parts of the NEC deal with wiring methods and device installation, but the framework for grounding and bonding is centralized in Article 250.