How this ended up in central Mexico, in a city with no real fire code and not too many multi story buildings is a bit of a mystery. Still a cool find.
Newest codes require sprinklers everywhere. Funny thing is, prior to the 80's, sprinklers weren't required in high rises. Many are not sprinklered. They have been required in mills, manufacturing plants, and storage warehouses for a long time. It wasn't municipal codes or fire departments that required them, it was insurance companies. They were installed before electricity, central air, or plumbing.
Early mills had a system of perforated pipes with a water tank outside. When something caught fire, the valve controlling the water was opened, flooding the mill.
Chilly