What flow rate must the second most remote standpipe accommodate when the floor area exceeds 80,000 sq feet?

The flow rate required for the second most remote standpipe in a building with a floor area exceeding 80,000 square feet is determined by fire protection standards, which often set specific guidelines regarding standpipe systems to ensure adequate water supply during emergencies. In this case, a flow rate of 500 gallons per minute (gpm) is specified.

This flow rate is appropriate because as the size and complexity of a building increase, so does the need for effective fire suppression capabilities. For larger floor areas such as those exceeding 80,000 square feet, requiring a higher flow rate ensures that sufficient water is available to fight fires effectively in multiple areas simultaneously. The 500 gpm requirement helps provide an adequate pressure and volume of water to reach the most remote areas of the structure, ensuring safety and compliance with fire codes.

In essence, this flow rate is a critical part of the design and function of standpipe systems, particularly in large occupancies, where swift and effective fire response can mitigate the impact of potential fire hazards.