Many decades ago, houses had fuse boxes. It has a screw in glass encased metal element that would only allow a certain amount of electricity to pass thru. If it was too much, then the element would melt and then everything on that circuit would have no power. In order to restore power to the circuit, a new screw-in fuse would have to be purchased and installed. But in later years, breakers were invented and and were installed in the electrical panel. This change went mainstream and it quickly replaced the fuse boxes. There are still some fuse boxes in use. So if you are unsure which you have, it is best to call a licensed electrician or an electrical contractor in Las Vegas or Southern Nevada to have a proper diagnosis of your problem.