by Podric13
Although there are automatic fire sprinkler systems that perform as described, they are not likely to be found in a school building. The typical system will only function if it gets exposed to enough heat and I would surmise that in a school building the temperature settings for the ceiling sprinklers would be about 135 deg. F.
I grew up in a rural community that had sprinkler systems in the school like this. Very rural and very outdated.