电力电缆是电力系统中用来传输和分配大功率电能的电缆。如常见的额定运行电压低于1000V的低压电缆、额定运行电压在3.6/6~26/35kV之间的中压电缆，额定运行电压高于110kV的高压电缆等。架空输电线常使用裸线以节约绝缘材料的成本，如绞线（钢芯铝绞线、铝绞线、铝包钢绞线、铝合金绞线）、软接线、型线和型材等。

A power cable is an assembly of one or more electrical conductors, usually held together with an overall sheath. The assembly is used for transmission of electrical power. Power cables may be installed as permanent wiring within buildings, buried in the ground, run overhead, or exposed.