In a fire sprinkler system, the sprinklers are connected to which part?

In a fire sprinkler system, the sprinklers are connected to the branch piping. The branch pipes serve as a distribution network that carries water from the main pipe to the individual sprinkler heads. This design allows each sprinkler to operate independently, activating only when the temperature around it reaches a certain threshold, thereby providing effective localized fire suppression.

The main pipe delivers water to various sections of the system, while the branch pipes ensure that each area protected by the sprinkler system has adequate coverage. These branches are essential in allowing the system to function as intended, directing water flow precisely where it is needed during a fire event.

The other options, while relevant to various fire protection systems, do not accurately represent the direct connectivity of sprinklers within a fire sprinkler system. The reservoir is typically a water storage system that may supply the overall system but is not where the sprinklers connect directly, and a standpipe system serves a different purpose by providing a means for firefighters to access water through hoses, rather than being directly linked to the sprinkler heads.