What is the maximum size for an enclosure that contains a luminaire and is supported by entering raceways?

The maximum size for an enclosure containing a luminaire that is supported by entering raceways is indeed 100 cubic inches. This specification is guided by the National Electrical Code (NEC), which provides safety guidelines and regulations for electrical installations.

In this context, the size limit of 100 cubic inches is significant because it ensures that there is adequate space within the enclosure for wiring and connections without creating overcrowding, which could lead to overheating or other safety hazards. It also allows for proper ventilation and accessibility for maintenance or inspection. Maintaining this size limit helps electrical professionals comply with safety codes and standards, ultimately protecting both the installation and the users of the electrical system.

Understanding these standards is crucial for anyone working with electrical installations, as it emphasizes the importance of adhering to predefined safety measures to mitigate risks associated with electrical systems.