How is "luminaire" defined in Article 410?

In Article 410 of the National Electrical Code, a luminaire is defined as a complete lighting unit that includes lamp(s) and socket(s). This definition encompasses all the components necessary for generating light, making it a critical term in understanding how lighting systems are assembled and utilized in electrical installations.

The luminaire's definition highlights its role as not just a housing, but as a functional unit designed to hold the lamp(s) securely and provide electrical connections for them. By integrating both the lamp and the socket, the luminaire can efficiently facilitate the operation of the lighting system, ensuring safety and performance as per NEC standards.

Understanding this definition is essential for professionals working with lighting installations as it informs correct installation practices, ensuring compliance with safety codes and standards outlined in the NEC.