A minimum of how many sprinkler supply lines should be connected to the fire department connection?

A minimum of how many sprinkler supply lines should be connected to the fire department connection?

• A. One sprinkler supply line should be connected
• B. Two sprinkler supply lines should be connected
• C. Three sprinkler supply lines should be connected
• D. No sprinkler supply line is required

Answer: (A)

The key idea is that the fire department connection must be capable of delivering water into the sprinkler system. Therefore, at least one supply line is required to establish a path for water from a pumper or other external source into the system. A single line provides the minimum means to pressurize and charge the system when the building’s internal water supply isn’t enough. Additional lines can be added for higher flow or redundancy, but they aren’t required by this basic requirement. Having no supply line would mean the FDC cannot convey water into the system at all.

The key idea is that the fire department connection must be capable of delivering water into the sprinkler system. Therefore, at least one supply line is required to establish a path for water from a pumper or other external source into the system. A single line provides the minimum means to pressurize and charge the system when the building’s internal water supply isn’t enough. Additional lines can be added for higher flow or redundancy, but they aren’t required by this basic requirement. Having no supply line would mean the FDC cannot convey water into the system at all.