What does Article 408 address in electrical installations?

Article 408 of the National Electrical Code (NEC) specifically addresses switchboards, switchgear, and panelboards. This article provides regulations and guidelines for the installation, performance, and safety requirements of these critical components in electrical distribution systems.

Switchboards and panelboards are essential as they house the electrical circuits and protect equipment from overloads and faults. This article covers aspects such as marking, labeling, construction, and management of overcurrent devices, ensuring that these installations are safe and reliable for both residential and commercial applications. By ensuring compliance with Article 408, electricians help promote safe operation and maintenance of electrical distribution systems, which is crucial in preventing electrical hazards and ensuring that electrical systems function effectively.

Other options pertain to different types of electrical equipment and installations: fixed electric space-heating equipment relates to heating systems; fixed resistance and electrode industrial process heating equipment focuses on industrial applications involving heat; and luminaires, lampholders, and lamps pertain to lighting fixtures. Each of these subjects falls under different articles of the NEC, which addresses specific types of electrical installations and devices.