Which NEC article covers premises-powered optical fiber-based broadband communications systems?

The article that addresses premises-powered optical fiber-based broadband communications systems is Article 840 of the National Electrical Code (NEC). This article specifically provides guidelines for the installation, maintenance, and safety of optical fiber cables used for high-speed network communications within buildings and similar premises.

Article 840 covers the requirements for both the fibers themselves and their associated apparatus, ensuring that installations are safe and function effectively. It includes specifications on the types of materials that can be used, installation practices, and clearance requirements to prevent interference and potential hazards. This is particularly important in the context of broadband communications, where reliability and performance are essential for modern data transmission needs.

Other articles mentioned, such as Articles 750, 820, and 830, have focuses that do not align with premises-powered optical fiber broadband communications systems. For example, Article 750 pertains to the safety of standby power systems, Article 820 deals with community antenna television and radio distribution systems, and Article 830 relates to network-powered broadband communications systems. Each of these articles has a distinct purpose, making Article 840 the correct choice in this context.