Re: Southern Pacific Hospital...a different view.
My father, Edward L. Carroll, (I'm Edward D.) took me in as a kid to see the plant and to meet the stationary engineer. It was as clean and polished when I saw it as in the pictures.
Electrical was my interest. Their backup power was tested weekly and it was DC as I recall. The sockets were marked so you wouldn't fry anything that had a transformer.
I worked for 17 years at a hospital that was originally British built, 240V/50Hz when Britain was still 240V. Then the local government had a falling out with the UK and everything went American, 117V/60Hz. Now they are rationalizing everything to 234V/60Hz with American standard plugs.
They still have 50 Hz steam turbine backup power, but that is on its way out. By the way the US 234V plug is a standard that not too many Americans are familiar with: Take a standard grounded plug and rotate the pins 90 degrees.