Everything you need to know about using extension cords

Using the wrong extension cord can be dangerous. They can melt or overheat and cause a fire, according to the U.S. Consumer Product Safety Commission. To prevent this, it’s important to buy the right extension cord for your requirements. Make sure to also purchase the length you need to avoid daisy chaining multiple extension cords together.

When using an extension cord, inspect it before each use and do not run it under a covering like a rug or tarp. If you ever notice your extension cord is getting hot when in use, unplug it and stop using it immediately. 

Types of extension cords 

Has your extension cord ever melted? It’s likely because it’s the wrong gauge for what you have plugged into it. Using the correct gauge for your project will protect your equipment and make your work safer, according to a Lowes buying guide. 

The lower the gauge number, the thicker the wire and thicker cords can carry more current. Your high wattage appliances are going to need a thicker gauge.

Here are some of the basics when it comes to extension cord gauges:

16 gauge is good for: 

• Work lights. 

• Lawn tools, like leaf blowers and hedge trimmers. 

• Fans.

• Holiday lights. 

14 gauge is good for: 

• Power tools, like drills and table saws. 

• Lawn Mowers.

• Small compressors and pressure washers. 

12 gauge is good for: 

• Wet/dry vacuums. 

• Larger compressors and pressure washers. 

10 gauge is good for really heavy-duty machinery like: 

• Jackhammers. 

• Table saws.

• Generators. 

How to choose the right extension cord

Choosing the right extension cord is important. Thicker ones are more expensive so make sure you’re buying the right cord for your project and not spending extra money unnecessarily. 

There are indoor, outdoor and indoor/outdoor options to choose from, so go for the extension cord that suits your needs. If you plan to use it outside, make sure to buy one that is waterproof and can withstand the outdoor temperatures. You can also opt for a bright color so it’s easy to spot. This is especially important when it’s time to mow the lawn! 

If you’re scratching your head at the hardware store, wondering which one you need, take a look at the packaging. A lot of the information about the cord is printed on there. Sometimes it’s also noted on the shelves at the hardware store. 

Once you’re home, if the cord doesn’t have an adhesive tag on it, consider making your own with the gauge and length on it.