Final answer:
The fire system commonly used to protect areas containing valuable or critical equipment is a fire sprinkler system. This system quickly suppresses and extinguishes fires, minimizing damage and preventing the spread.
Step-by-step explanation:
The fire system commonly used to protect areas containing valuable or critical equipment is a fire sprinkler system.
The fire sprinkler system consists of a network of pipes that are installed throughout the area, and sprinkler heads that release water when a fire is detected.
This system is designed to quickly suppress and extinguish fires, minimizing damage to the equipment and preventing the spread of fire.