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How to wire a 220 outlet
Check with the national and local electrical codes.
Make sure you understand all the requirements for wiring a 220-volt outlet.
Choose the correct wire size and type for the appliance.

Choose your answer from: *A label should give the amperage rating of the appliance, and this will determine the wire size. An example would be a 20 amp air conditioner requiring a 12 gauge wire, typically a 3 wire plus ground romex cable.; *For most contractors, shippers should use wifewire. You can use dcoop or reed wire, but a wire of this variety, works well.; *For installation, it's important to choose the correct wire size. If you're painting a wall, drill holes to fit the wires properly.; *Unless you are using a commercial use outlet, there should be 3 wires that connect to the plug box. Choose the wires using your wire cutters.;
Answer:
A label should give the amperage rating of the appliance, and this will determine the wire size. An example would be a 20 amp air conditioner requiring a 12 gauge wire, typically a 3 wire plus ground romex cable.