What must be installed in attics and underfloor spaces containing serviceable equipment?

An accessible lighting outlet is essential in attics and underfloor spaces containing serviceable equipment for several practical reasons. Adequate lighting ensures safety and visibility for maintenance personnel who need to perform inspections or repairs. These areas can often be dark and cramped, making it difficult to work without proper illumination. Having an accessible lighting outlet allows workers to connect portable lights or tools as needed, facilitating efficient and safe service of the equipment installed in these spaces.

In contrast, while ventilation ducts may be necessary for certain installations, their primary purpose is not to ensure safe service access but to manage air quality and temperature. Power outlets could be useful for various electrical tools, but they do not fulfill the specific need for immediate, adequate lighting during maintenance activities. A smoke detector is important for safety, but it does not directly assist with the accessibility or serviceability of equipment in these areas. Thus, the presence of an accessible lighting outlet directly addresses the practical needs of servicing equipment in both attics and underfloor spaces.