An electrical cable is a structure designed to transmit electrical current from one point to another. It typically consists of a conductor, which is usually made of highly conductive metals like copper or aluminum, responsible for carrying the electrical charge. This conductor is insulated by one or more layers of dielectric material, which serves to prevent short circuits and electrical leakage. Modern cables often incorporate various protective sheathing materials—such as PVC, polyethylene, or metal jacketing—to shield the internal components from environmental hazards like moisture, abrasion, and physical stress, allowing the cable to function reliably in diverse industrial and residential settings.