Which article covers cable TV wiring installations in residences?

The correct answer is Article 820, which specifically addresses cable television (CATV) wiring installations in residential settings. This article outlines the requirements for the installation of coaxial and other types of cable used for signaling purposes in homes. Key considerations include grounding, bonding, cable types, and installation practices to ensure minimal interference and safety.

Article 700 pertains to emergency systems, which focus on systems designed to provide power during emergencies, not applicable to cable installations. Article 800 covers communications circuits more broadly, but does not specifically focus on cable television. Article 840 relates to the installation of premises wiring for alarm systems and signaling, making it incompatible with the requirements and specifications for cable television wiring.