Luminaires weighing more than how many pounds are required to be supported independently of the outlet box?

Luminaires that weigh more than 50 pounds must be supported independently of the outlet box. This requirement is specified in the National Electrical Code (NEC), which emphasizes the importance of ensuring that heavy fixtures are securely mounted. The reasoning behind this regulation is primarily safety; outlet boxes are not designed to support heavy weights and could become dislodged, leading to potential hazards such as falls or electrical failures.

When luminaires exceed this weight limit, it is crucial to utilize additional support systems, such as mounting directly to the structure or using a supplementary support mechanism. By adhering to this guideline, electricians can help prevent accidents associated with insecurely mounted heavy fixtures, ensuring both safety and compliance with electrical installation standards.