NEC Article 300.14 is primarily concerned with:

NEC Article 300.14 specifically addresses the requirements related to service-entrance conductors. This section establishes guidelines on how service conductors should be installed and secured in a manner that ensures safety and compliance with the National Electrical Code. It looks into aspects such as the allowable lengths of conductors inside and outside of buildings, as well as considerations about how conductors should be routed and supported to minimize hazards associated with electrical installations.

By focusing on service-entrance conductors, NEC Article 300.14 plays a critical role in preventing issues such as voltage drop and ensuring that the conductors are adequately protected from physical damage. This is particularly important since service-entrance conductors carry electricity from the utility supply to the premises, making their safe installation crucial for overall electrical safety in a building.

In contrast, general wiring methods, support for overhead lines, and the use of flexible conduits focus on broader or different aspects of electrical installations and do not center on the specific guidelines established in Article 300.14 for service-entrance conductors. Understanding the function and requirements of article 300.14 is essential for anyone involved in the design or implementation of electrical systems.