Power cables are essential electrical components used to transmit electrical energy from a power source to devices or machinery. They typically consist of one or more conductors (usually copper or aluminum), insulation materials, and protective jackets to ensure safety and durability. Power cables are classified based on voltage ratings—low, medium, or high voltage—and are used in residential, commercial, and industrial applications. These cables are designed to withstand various environmental conditions, electrical loads, and mechanical stresses, making them suitable for underground, overhead, or indoor installations.