What is the maximum weight that a luminaire can have to be supported by the screw shell of a lamp holder?

The maximum weight that a luminaire can have to be supported by the screw shell of a lamp holder is established to ensure safety and prevent damage to both the lamp holder and the fixture. The National Electrical Code (NEC) specifies that a lamp holder is designed primarily to hold the light bulb in place and is not intended to support significant loads.

Having a weight limit of 6 lbs for a luminaire supported by the screw shell of a lamp holder reflects this intent. This regulation helps minimize the risk of the lamp holder failing under too much stress, which could lead to electrical hazards, including short circuits or fires. Further, adhering to this weight limit helps ensure stability and prevents the luminaire from becoming dislodged, thereby promoting safe lighting applications in various environments.

Therefore, the knowledge that 6 lbs is the weight limit helps professionals in the electrical field make informed decisions when selecting appropriate fixtures and adhering to safety standards.