That's right. Overloading a wire means increased resistance, electrical resistance creates heat (an incandescant light bulb is a resistor in a vacuum... your toaster is strips of resistors that get hot when current goes through them... a hair dryer is the same), and that heat can be dangerous.
stinkyattic Reviewed by stinkyattic on . A question about energy consumption: how much is safe before everything blows? Hi all, I'm a bit nervous about my first setup. I'd like to know if it's safe to run all my equipment from a single bedroom without having to worry about a power failure. Below is what I have in my closet, and below that is what I may have running in my bedroom at the same time. I appreciate all your help. Closet --> - 5 x 250GPH water pumps - 2 x air pumps - 2 x timers - 1 x 6" vortex in-line fan (sorry I don't know how many cubic feet this thing pumps) Rating: 5