Note that many businesses, and some circuits in residential homes, are wired for 20 amps. The sockets that definitely support 20 amps have an additional slot fo

Note that many businesses, and some circuits in residential homes, are wired for 20 amps. The sockets that definitely support 20 amps have an additional slot for 20 amp connectors. See: https://upload.wikimedia.org/wikipedia/commons/thumb/4/42/Electrical_outlet_with_label.jpg/220px-Electrical_outlet_with_label.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/4/42/El...