Power cables, otherwise known as electrical or electric cables, are essential components of any electrical system, as they transmit electricity from its source to the points where it is needed. Other synonyms for "power cables" include wire, cord, cable, and conductor, as well as phrases such as electricity-carrying cables, power lines, electric cords or wiring. These cables come in various types and sizes, as well as insulation and shielding materials, depending on the specific application. Regardless of what they are called, power cables are indispensable in modern-day life, powering devices and machines from simple home appliances to complex industrial systems.