How is a large building wired up? Answered
So, recently, I was at school, and trying to use my laptop charger ( I was the only person in the room to be doing so)
However, it didn't work.
Using it at home, however, it instantly kicked the RCD or safety switch thing off, switching off everything running off the mains
Upon further inspection, I found that the power cable had been damaged, so that the active wire was in contact with the ground wire.
My question is, how come the power at school didn't get shut down completely ( the lights were still on, and wall outlets in other rooms around the school still worked) but at home, everything was completely shut down.
I thought that there'd be at least a fuse or something, if not a safety switch...