The Complete Guide to Using an Extension Cord Safely
Extension cords are handy, but they must be used with caution. Follow these extension cord safety tips to protect your household from fire and ensure that you choose the right type of wiring for your needs.
Remember that extension cords are, at best, a temporary solution. They are not designed to be permanent electrical fixtures, so if you need more outlets or a better electric system in your home, working with a professional is the way to go.
Keep Them Dry
Even outdoor extension cords are not intended to be run through the snow, rain, or puddles. Electricity and water are never a good idea, so don’t try to risk it and see if it works. Plugging anything into a wire that is in contact with water can have fatal consequences.
Only Use Safety-Approved Extension Cords
Look for cords that have the Underwriters Laboratories (UL) or Intertek (ETL) label. You may also find some that have been tested and approved by the Canadian Standards Association (CSA). Avoid using off-brand cords that cannot be verified for safety.
Buy the Right Size
Extension cords vary in length as well as amperage limits. Make sure you understand your electrical needs before you use an extension cord. Here’s a breakdown of cord lengths and their amperage.
20 to 50 Feet
- 12-10-gauge (16–20 amps)
- 14-gauge (14–15 amps)
- 16-gauge (1–13 amps)
Up to 100 Feet
- 10-gauge (16–20 amps)
- 12-gauge (14–15 amps)
- 14-gauge (11–13 amps)
- 16-gauge (1–10 amps)
150 Feet
- 10-gauge (11–15 amps)
- 12-gauge (8–10 amps)
- 14-gauge (1–7 amps)
Check for Damaged Cords
Whenever you pull out an extension cord to use, thoroughly check the length of the wire for any cracks or punctures in the insulation. If you notice any, don’t try to patch it up with electrical tape and continue using it. Damaged wires and extension cords are always a risk, and it’s best to replace them.
Just make sure that you discard your old extension cords properly; look for an e-waste facility that can recycle its materials.