From Scameron81

Quote
You can hear this thing humming as soon as you open the hatch to get
into
the basement. This is a Boarding school that we do a lot of work for.
Every building has one of these transformers below it. There is a
single
50A 4160 feed that runs in a 2" rigid conduit throughout the tunnel
network.
It was installed back in the fifties. This is a 4160/120-208. The
door
when you open it swings within about 2' of the open windings. If you
look
carefully you see the high water mark on the wall just above that 2"
conduit. Its not exactly my favorite place to work in the world.


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