What is the primary purpose of Article 410 in the NEC?

The primary purpose of Article 410 in the National Electrical Code (NEC) is indeed to establish the requirements for luminaires, lampholders, and fixtures. This article provides detailed specifications on how these components should be designed, installed, and maintained to ensure safety and functionality in residential and commercial environments. It covers critical aspects such as the proper mounting and support of luminaires, the necessary clearances, the types of materials that can be used, and guidelines for specific environments (like wet or damp locations). By adhering to these standards, electricians and contractors ensure that lighting systems operate safely and effectively, minimizing electrical hazards while maximizing performance.

In contrast, the other choices pertain to different aspects of electrical installations. Safety protocols for electrical installations are addressed in various articles throughout the NEC, whereas the types of electrical service and regulations for outlets and switches are covered under different sections of the code, thus making them not the focus of Article 410.