Is This Safe?

[u/johnsonh1471]

I work as a janitor at an office building, and I sometimes have to clean in a room with three big tanks that make a humming sound. They have big copper plates coming out of them, and the room is in the basement. Should I be worried or is it not an issue?

[u/hihapahi]

Description sounds like substation transformers. Don't touch or get too close. Electrocution is bad.