Standards for Extension Cords in Water

Common sense hazard prevention dictates extension cords should always be kept away from, and out of, water.

Water Resistant

Extension cords exposed to water create a deadly shock hazard.Extension cords exposed to water create a deadly shock hazard.
However, outdoor and job site use expose extension cords to moisture. Manufacturers design some heavy-use cords with insulation to protect the wiring from some forms of moisture damage.

Some extension cords are manufactured for water resistance. They are waterproof, immersible or safe to use in standing or flowing water. Any mention of water resistance merely indicates the vinyl or rubber that serves as the exterior covering of the cord will not allow water to soak through to the wires. Any cracks or breakage allows water to penetrate. The Occupational Safety and Health Administration (OSHA) warns that extension cords and the cords of portable electric equipment be frequently checked for signs of damage. Water resistant cords are heavy-duty industrial cords. Standard household extension cords white, green or brown in color are not water resistant.

Wet Hands

Never plug any extension cord into an electric source when either one of the plug ends are wet. Never plug into an electric source with wet hands or come in contact with, or use, any electrical items while standing in water. Other liquids are just as conductive as water posing the same electrical shock hazards.

Corrosive Damage

Exposing extension cords to moisture shortens the usable life of the cord. Once moisture, including humidity, comes in contact with copper wiring, corrosive build-up forms and travels along the cord. Corrosion damages the wires, rendering the cord useless.

About the Author

Cynthia Clark began writing professionally in 2004. Her work experience includes all areas of small-business development, real-estate investments, home remodeling and Web development. Clark is skilled in a number of design disciplines from digital graphics to interior design. Her diverse background and commonsense problem-solving skills allow her to tackle a variety of topics as an online writer.