I am facing a couple of these problems myself. The appropriate people to go to are the folks in your Buildings & Grounds Office (Maintenance, Facilities, Engineers, whatever you want to call them). They should have the electrician come out and take a look at your wiring and make the necessary repairs.
I've found that problems usually aren't fixed because people don't go to the appropriate department with requests. I can tell my custodians/janitors about a leaking faucet until the oceans dry up, but they're not going to fix it.
As for
safety cages on the ladders and railings in the catwalks, I think you're probably going to open up a big can of red tape worms if you start squawking about that. It's a shame to say, but knowing how college campuses work, I don't think you'll make it very far with that request.
I'm starting to fight the battle of getting all of my rigging replaced. I'll tell you, it's not a fun battle... not in the least.
Good Luck!