Content overview: “Why You Shouldn't Leave an Extension Cord Plugged In All the Time”. Extension cords are convenient for temporary power needs, but leaving them plugged in continuously can create serious safety hazards. According to electrical safety experts, extension cords are not designed for permanent use. Over time, constant electrical load can degrade the cord's insulation, leading to overheating, short circuits, and even electrical fires. Consumer Product Safety Commission estimates that extension cords cause about 3,300 residential fires each year, resulting in roughly 50 deaths and 270 injuries.
These incidents often stem from cords that are damaged, overloaded, or improperly used as a substitute for permanent wiring. When a cord remains plugged in, it is more likely to be pinched by furniture, walked on, or exposed to moisture, all of which accelerate wear. Additionally, even when not actively powering a device, a plugged-in cord can draw a small amount of current, wasting energy and increasing the risk of a fault. This listing links straight to the original page, where the content is available in full.