How much electrical current (typically rated in amperes, or amps) does the tool or appliance require?
The amperage requirement determines the wire size needed. • Choose the right wire size for the intended use. Extension cords are rated by wire size, known as gauge. The thicker the wire, the more amps it will carry. Amperage requirements are usually given with the the tool or appliance. • A cord’s wire thickness is identified by the letters AWG followed by numbers; typically 12, 14, or 16. (See image at left.) In this case, less is more the lower the number, the thicker the wire. • Rule of thumb: Be sure the diameter of the extension cord is as large or larger than the cord being plugged into it. • What is the maximum distance the cord will need to extend from the permanent electrical outlet? • Select the right length of cord. The ability of a wire to carry a specific amperage will diminish as its length increases. If you need a lot of amps carried over a long distance, you’ll need a heavier gauge wire. • Use the chart below as a guide for selecting an extension cord of appropriate gau
