In high-rise buildings, what system is used to deliver water to fire hose outlets on each floor?

The system used to deliver water to fire hose outlets on each floor of high-rise buildings is the standpipe system. Standpipes are critical components of fire protection systems within these structures, providing a means for firefighters to access water quickly and efficiently from various floors during a fire response.

There are different types of standpipe systems, including wet and dry standpipes, which are designed to suit the needs and layout of the building. Wet standpipes are typically filled with water at all times, while dry standpipes are empty until firefighters connect a hose and supply water from a fire engine. This setup is essential when dealing with the height and complexity of high-rise buildings, where standard fire hydrants on the street may be too far away to provide an effective and immediate water supply for firefighting efforts.

While other systems like fire mains and hydrant networks are important components in overall fire protection, they do not specifically address the need for a direct and accessible water supply at various elevations within tall structures. The water supply system generally refers to the overall infrastructure that provides water, but standpipes specifically cater to the immediate needs during a fire emergency in high-rise settings.