Communications circuits and data networks are covered by which NEC article?

• A. Article 250
• B. Article 450
• C. Article 220
• D. Article 800

Answer: (D)

Communications circuits and data networks are covered by Article 800 (Communications Circuits) of the NEC. This article provides the rules for installing voice, data, video, and signaling cabling, including acceptable cable types, how cables must be routed and terminated, wiring methods and enclosures, and how these circuits must be kept separate from power conductors to minimize interference and ensure safety. It also covers related equipment like communication panels and terminations. This focused scope is why it’s the appropriate reference for communications networks, rather than the power-oriented provisions that govern grounding, bonding, or load calculations in other articles.