What type of systems in high-rise buildings deliver water from the outside up to fire hose outlets on each floor?

Standpipe systems are specifically designed to supply water from a reliable source to critical points in a building, particularly in high-rise structures. These systems typically consist of vertical piping that is connected to a water supply, which can be either a municipal source or a storage tank. Standpipes are strategically installed throughout the floors of the building and equipped with hose outlets, allowing firefighters to connect hoses directly to these outlets to access water quickly and effectively during firefighting operations.

In high-rise buildings, the distance between the ground and the upper floors makes it challenging for firefighters to transport water manually. Therefore, the standpipe system plays a vital role by facilitating immediate access to water on each floor, ensuring that firefighters can suppress fires efficiently and minimize potential damage. This makes the standpipe system an essential component for fire safety in high-rise construction.

The other types of systems mentioned serve different purposes. Sprinkler systems are fire suppression systems that automatically distribute water when heat from a fire is detected. Fire hydrants are external water sources located outside of buildings, typically used by firefighters to draw water for fire control. Water curtains are not commonly used for direct firefighting but are employed as a protective barrier against fire spread and smoke, often in specific architectural applications.