What Is A 10 3 Extension Cord. These are always grounded extension cords that include a third wire and plug prong for grounding and have plugs with three slots for accepting grounded appliance cords. The term usually refers to mains extensions but is also used to refer to extensions for other types of cabling.
These are always grounded extension cords that include a third wire and plug prong for grounding and have plugs with three slots for accepting grounded appliance cords. A good general purpose choice is a 10/3 (#10 gauge) outdoor rated. So, a number like ‘12 3’ means the cord has 12 gauge diameter wire and 3 wires.
With cable jackets having a “w” code rating, both are suitable for outdoor use. Extension cords have mysterious letters and numbers printed on the jacket to show the uses for which they are appropriate. Simply put, an extension cord is an electrical cord.
But the “t” designation on their. When connected to the cord of an electrical device, the extension cord allows you to position the device farther from an electrical outlet than the device’s own cord would allow. So, a number like ‘12 3’ means the cord has 12 gauge diameter wire and 3 wires.
We also allowed for up to a 5% voltage drop—which some people might consider too high. Most people have several extension cords they keep on hand for this purpose. For heavier loads, i recommend the 10/3.
This is a great extension cord for many purposes. Tools and heating appliances drawing up to 15 amps of power. The term usually refers to mains extensions but is also used to refer to extensions for other types of cabling.
Remember, wire gauge refers to the thickness of the actual copper wire. As a wire gets thicker it can carry more electricity (amps). For our extension cord size chart calculations, we assumed 120v single phase with a power factor of 1.
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