How do you size an extension cord?

To properly size an extension cord so your equipment is getting enough power, consider the distance you will run the cord and the amps that your equipment needs to run (found on cord). When using 100 feet extension cords, you’ll need a: 16 Gauge for 1-10 Amps. 14 Gauge for 11-13 Amps.

What is the standard power cord length?

72 inches
Description. The CA248 is a standard six foot (72 inches) US power cord that plugs into any standard desktop power supply rated to 120V AC. The CA248 can also be used as a standard computer or monitor power cord.

What is the diameter of a power cord?

General purpose power cords are lengths of small-diameter cable (12 to 18 gauge) used to connect devices and appliances to an electrical outlet.

What does 12/3 mean in an extension cord?

On the packaging of the extension cord, there should be some numbers. These are the gauge of the wire and number of conductors (wires) in the cord. So, a number like ’12 3′ means the cord has 12 gauge diameter wire and 3 wires.

What is a 12 gauge extension cord?

12-gauge extension cords are used for most tools and high power appliances. A 12 gauge extension cord rated at 20 amps is a versatile extension for both indoor and outdoor use. Over 100-feet, it can safely handle 16 amps. It lets you run a single high-wattage power tool or two to three smaller tools or appliances.

What is a 16 gauge extension cord?

Sixteen-gauge cords are low wattage and are intended for use with small appliances such as portable fans, alarm clocks, table lamps, or floor lamps (note: an electronic device such as a TV or computer should be connected to a surge protector).

Can extension cords be too long?

An improperly sized extension cord can cause a tool or appliance motor to burn out if allowed to run for too long. It can also cause a dangerous situation if it overheats.

What’s the diameter of a 12 gauge extension cord?

12-gauge cords are thicker than 14-gauge. Note that 12-gauge steel sheets come with a thickness of 0.1084 inches, while the 14 gauge metal sheets are 0.0785 inches thick.

What is the diameter of a 12 gauge extension cord?

How thick is a 12 gauge extension cord?

0.1084 inches
The most important thing is to consider the thickness and length. 12-gauge cords are thicker than 14-gauge. Note that 12-gauge steel sheets come with a thickness of 0.1084 inches, while the 14 gauge metal sheets are 0.0785 inches thick.

Which is better 14 gauge or 16 gauge extension cord?

Within 50 feet of your outlet, use a 16-gauge light-duty cord for blowers. For a higher Amp or a greater distance from the outlet, go with a 14-gauge medium-duty cord. Look for a “W” on the jacket if the cord is rated for outdoor use.

Does length of extension cord matter?

Extension cord length is an incredibly important factor. The longer the extension cord is, the more resistance. Extension cords come in various lengths, from a few feet to 100 feet. Although copper wire is a very good conductor, it does have an amount of resistance that generates heat.

What happens if an extension cord is too long?

What is bigger 12 gauge or 14 gauge?

Here’s a simple visual. Twelve gauge is about the thickness of a nickel, and 14-gauge is about the thickness of a dime. Also, look at the breaker for the circuit in question to see if it’s a 15-amp or a 20-amp breaker. A 20-amp circuit requires wire that’s 12-gauge or larger.

How much voltage drop is too much for an extension cord?

We also allowed for up to a 5% voltage drop—which some people might consider too high. With that being the case, only one of our recommendations hit that level, the 100-foot 12-gauge extension cord with a full 15A draw. This might be an unusual application for some, but we felt it represented a great scenario.

Do you need a definitive extension cord size chart?

After searching the Internet recently, we realized people needed a definitive extension cord size chart. Understanding wire gauge proves difficult in some situations. This chart breaks down how both the wire gauge and length of an extension cord affect its ability to convey power to a corded tool.

How many amps does it take to run an extension cord?

Everyone on a job site or remodel has some experience with running extension cords. For larger tools that require them, it’s not enough to simply tap into the temp power pole or a nearby outlet. You have to ensure that if your tool requires 15 amps, it gets 15 amps.