What system consists of pipes and equipment solely for supplying water to extinguish fires?

The correct answer is the Fire Line because it specifically refers to a system designed for the purpose of supplying water to extinguish fires. This system is crucial in fire protection infrastructure, enabling immediate and sufficient water flow to combat fires effectively. Fire Lines are typically connected to public water supplies or dedicated sources, ensuring that in the event of a fire, firefighters can access the necessary water quickly and efficiently.

In contrast, a Sprinkler System, while it also serves the function of fire suppression, is a different element of fire protection that involves a network of pipes and sprinkler heads designed to automatically spray water over an area when a fire is detected. An Emergency Water System refers more broadly to a water supply that could be used for various emergencies, not exclusively for fire suppression. Finally, the term Fire Safety Line is not a standard term recognized in plumbing or fire protection codes, making it less accurate in this context.