How do fire department connections (FDCs) enhance the performance of sprinkler systems?

Fire department connections (FDCs) play a crucial role in enhancing the performance of sprinkler systems by providing an additional supply of water during firefighting operations. When a fire is detected and breaks out, existing water supply systems may not always be sufficient to control or extinguish the fire effectively. The FDC allows firefighters to connect to an external water source, typically a fire engine, to increase the water flow to the sprinkler system or directly to the fire. This supplemental water can significantly improve the effectiveness of the sprinkler system, ensuring it has the necessary pressure and volume to suppress the fire rapidly.

Moreover, the presence of FDCs is essential in high-rise buildings or large structures where the building's internal water supply might be inadequate under extreme fire conditions. The enhanced flow rate provided through these connections can make a substantial difference in saving lives and protecting property during emergencies.

In contrast, reducing water usage or improving the aesthetic appearance does not align with the primary function of an FDC. While monitoring system pressure is important for system management, it does not directly enhance performance during a fire situation like the FDC does by providing additional water resources when needed.