What is the purpose of fire department connections (FDC) in a fire protection system?

The purpose of fire department connections (FDC) in a fire protection system is primarily to allow firefighters to connect their hoses and access a reliable water supply. This connection facilitates rapid deployment of water to assist in extinguishing a fire effectively during an emergency situation. When firefighters arrive on the scene, they can quickly attach their hoses to the FDC, drawing directly from a designated water source, whether that is a municipal supply or a dedicated storage tank, depending on the system design and specific requirements of the building.

While increasing pressure in the sprinkler system, monitoring for leaks, and serving as a backup for municipal supply might be relevant to water-based systems in general, they do not directly pertain to the specific function of FDCs. The primary role of an FDC is to provide fire department personnel with immediate access to sufficient water for firefighting efforts, thereby enhancing the efficiency and effectiveness of fire response operations.