What is meant by 'fire department connection' (FDC)?

The term 'fire department connection' (FDC) refers specifically to a point where firefighters can connect their hoses to provide a supplemental water supply to a standpipe or sprinkler system. This connection is crucial during a fire emergency, as it allows the fire department to enhance the existing water supply available within the building's fire protection systems. By using the FDC, firefighters can deliver a higher volume of water at a much quicker rate than might be available through the building's internal systems alone.

In an effective fire response, the FDC allows for immediate access to additional water when every second counts, making it an essential component in the design and function of fire protection features within buildings. Proper placement and clear signage of the FDC are vital to ensure rapid access by firefighters in the event of an emergency.

The other options do not pertain to the function of an FDC, as they relate to different aspects of fire safety and prevention measures, such as alarms or equipment storage, which serve different safety purposes but do not facilitate direct water supply during firefighting operations.