Extension Cord Safety

People in homes across the United States use extension cords daily for a variety of electrical tasks. The Consumer Product Safety Commission offers some tips for extension cord safety.

• Look for a certification label from an independent testing lab such as UL (Underwriters Laboratories) or ETL (Electrical Testing Laboratories) on the package and on the product. It indicates the product meets current industry safety standards. For extension cords, look for a permanently attached certification label on the cord near the plug. For power strips and surge protectors, inspect the underside of the casing for the manufacturer's name and the testing lab.
• Use electrical cords, power strips and surge protectors that have polarized plugs with one blade slightly wider than the other, or grounded three-prong plugs. These features reduce the risk of shock.
• Use special, heavy-duty extension cords for high wattage appliances such as air conditioners, portable electric heaters and freezers. Extension cords used outdoors should be specifically designed for such use.
• Insert plugs fully so that no part of the prongs are exposed when the cord is in use.
• Never cover any part of an extension cord with rugs or other objects while it is in use. If the cord is covered, heat cannot escape, which can result in fire.
• Do not overload cords with too many appliances.
• Change the cord to a higher-rated one or unplug and relocate appliances to other outlets.
• If a cord feels hot to the touch, stop using it and throw it away.
• Replace cracked or worn cords.
• Do not use extension cords to compensate for inadequate home wiring. Use extension cords only when necessary and only on a temporary basis.