What does FDC refer to in fire protection systems?

FDC stands for Fire Department Connection, which is a critical component in fire protection systems. This connection provides a means for firefighters to access the building's water supply directly from the exterior, allowing them to quickly and efficiently connect hoses and utilize the building's fire suppression system, such as standpipes or sprinklers.

Having an accessible and clearly marked FDC enables rapid response during a fire emergency, ensuring that the fire department can deliver water to fight the fire without delays. This is particularly vital in high-rise buildings where internal water supply systems may have limitations.

The other choices refer to concepts that are not standard terms used in fire protection. Fire Department Combat, Fire Detection Control, and Fire Defense Configuration do not carry the same recognition or functionality as Fire Department Connection in the context of firefighting and emergency response. These terms may exist in different contexts or may be misinterpreted variations, but they do not represent an established element in the fire safety framework like the FDC does.