Which NEC article covers the installation of optical fiber?

The installation of optical fiber is specifically covered under Article 770 of the National Electrical Code (NEC). This article provides the necessary guidelines for the installation and use of optical fiber cables, including safety considerations and compliance with standards for various environments. It addresses factors such as cable construction, termination techniques, and requirements for systems in commercial and residential installations.

Understanding this article is crucial for ensuring that optical fiber installations comply with electrical standards, which enhances safety and performance in data transmission. Other articles mentioned do not pertain specifically to optical fiber; for example, Article 780 involves the installation of surge protective devices, Article 700 covers emergency systems, and Article 810 pertains to radio and television equipment. Therefore, Article 770 is clearly the relevant section for optical fiber installation, making it the correct answer.