Equipment that is electrically connected to a telecommunications network is required to be listed in accordance with which section of the NEC?

The requirement for equipment that is electrically connected to a telecommunications network to be listed is stipulated in Section 800.18 of the National Electrical Code (NEC). This section specifically addresses communications and outlines the necessary standards for equipment to ensure safety and reliability in telecommunications installations. The code requires that equipment connected to these networks must be listed and labeled by a qualified testing laboratory to ensure that it meets specific safety standards, which helps prevent hazards such as fire and electrical shock.

The focus of Section 800 is on communications circuits, which includes everything from telephone to data communications systems. This section is designed to protect users and the infrastructure by ensuring that all components used are vetted for quality and safety, adhering to recognized standards.

In contrast, the other sections mentioned are related to different aspects of electrical installations. For instance, Section 110.16 deals with arc flash protection, Section 240.6 pertains to overcurrent protection, and Chapter 9, Table 5(A) relates to wire characteristics. None of these directly address the requirements for telecommunications equipment listing as defined in Section 800.18.