In standpipe systems, Class II standpipe hose connections must be located so that all portions of the building are within how many feet of a nozzle attached to 100 feet of hose?

In standpipe systems, Class II standpipe hose connections are designed primarily for use by trained personnel and to facilitate firefighting in occupied buildings. The requirement that all portions of the building be within 30 feet of a nozzle attached to 100 feet of hose ensures effective reach and accessibility for suppression activities.

This distance is specified to allow firefighters to quickly and efficiently deploy hoses without requiring excessive movement, which could delay effective firefighting efforts. Additionally, having the connections spaced within this range ensures that firefighters can operate the hose without hardship or the need for additional equipment, thus enhancing safety and effectiveness during an emergency response.

By establishing a reasonable maximum distance, the code aims to minimize the potential for extended hose lengths, which could complicate fire operations, increase friction loss, and reduce water flow. Overall, the 30-foot requirement strikes a balance between accessibility and operational efficiency in firefighting scenarios.