NEC article 250 covers the requirements for grounding and bonding electrical systems. It lists the systems required, permitted and not permitted to be grounded and provides the requirements for grounding connection locations.

NEC article 250 covers the requirements for grounding and bonding electrical systems. It lists the systems required, permitted and not permitted to be grounded and provides the requirements for grounding connection locations.

• A. 240
• B. 300
• C. 250
• D. 280

Answer: (C)

Grounding and bonding requirements are centralized in NEC Article 250. It specifies the systems that must be grounded, which ones may be grounded, and where grounding connections must be made, including grounding electrodes, equipment grounding conductors, and bonding jumpers. This direct focus on grounding and bonding is why this article is the correct reference for the question. The other NEC articles cover different topics (like overcurrent protection and general wiring methods) and don't address grounding and bonding in the same way, so they aren’t the right reference for this topic.

Grounding and bonding requirements are centralized in NEC Article 250. It specifies the systems that must be grounded, which ones may be grounded, and where grounding connections must be made, including grounding electrodes, equipment grounding conductors, and bonding jumpers. This direct focus on grounding and bonding is why this article is the correct reference for the question. The other NEC articles cover different topics (like overcurrent protection and general wiring methods) and don't address grounding and bonding in the same way, so they aren’t the right reference for this topic.