Where would a preaction system typically be installed?

A preaction system is typically installed in environments where safeguarding delicate equipment or valuable assets is a priority, making data centers and museums the ideal locations for such systems. This type of fire protection system combines features of both automatic fire sprinklers and manual detection systems. In a preaction system, the pipes are not filled with water but instead contain air or nitrogen. When a heat detector is activated due to a fire, the system allows water into the pipes, and only then does it act to extinguish a fire. This is particularly beneficial in settings like data centers, where water damage from sprinkler systems could be catastrophic to electronic equipment, and in museums, where artifacts and priceless items must be protected from both fire and water damage.

The other options, while they may involve different types of fire protection systems suited to their specific risks, do not align as closely with the requirements and best practices for preaction systems as data centers and museums do.