What type of systems is Article 700 of the NEC concerned with?

Article 700 of the National Electrical Code (NEC) specifically addresses emergency systems. These systems are designed to automatically supply power to critical devices and circuits needed to maintain operations during a power outage. Emergency systems are crucial for ensuring safety and continuity in various settings, such as hospitals, fire departments, and other facilities where essential services must continue even when the normal power supply is interrupted.

Under Article 700, there's a focus on the installation, maintenance, and compliance requirements necessary to ensure that emergency systems can effectively perform their functions. This includes ensuring proper design, specifying equipment ratings, and adherence to installation guidelines that facilitate immediate power restoration. The requirements aim to minimize hazards and improve response times during emergencies.

While the other provided choices may have relevance to electrical systems, they do not fall under the specific purview of Article 700. Electrical distribution encompasses a broader range of power delivering methods, lighting systems focus specifically on illumination, and power generation relates to the process of producing electrical energy rather than the response to power loss. Therefore, the emphasis of Article 700 remains firmly on emergency systems and their vital role in safety and operation during unforeseen power disruptions.