- 1). Stop the flow of electric current into your household wires by shutting down the main circuit breaker located inside the electrical panel. Verify the absence of power by turning on lights and appliances inside your home; all electrical equipment and devices should not work.
- 2). Unscrew the faceplate of the twist-and-lock receptacle with a screwdriver. Remove the retaining screws that hold the receptacle to the outlet box. Pull the outlet carefully out of the wall. View and note the manner by which the wires are attached to the receptacle.
- 3). Loosen each terminal screw and detach the wires from the existing twist-and-lock outlet. Loosen the terminal screws on the new three prong outlet and wrap each wire around its terminal screw following the configuration that you noted in Step 2. Regular 110-volt outlet wires are connected in the following configuration: black wire (hot) to the brass-colored terminal; white wire (neutral) to the silver terminal; and green or bare wire (ground) to the green terminal.
- 4). Tuck the wires into the outlet box once you have finished attaching the color-coded wires. Push the new outlet against the outlet box, then screw the outlet onto the box using the screws supplied with the outlet. Screw on the outlet's cover plate.
- 5). Turn on the main circuit breaker and plug a 110-volt appliance with a three-prong plug into the outlet to test the connection.
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