This article introduces 1kV cables with an Al/XLPE/PVC structure, covering a variety of single - core cross - section specifications, including 1×630mm², 1×500mm², 1×400mm², 1×300mm², 1×240mm², 1×185mm², 1×150mm², 1×120mm², 1×95mm² and 1×70mm². The structural design of this series of cables has clear functionality: Aluminum (Al) is used as the conductor, which has good conductivity and economy, making it suitable for medium and low - voltage power transmission; Cross - linked polyethylene (XLPE) serves as the insulation layer, with excellent temperature resistance and insulation performance, which can adapt to the stable operation of the 1kV voltage level; Polyvinyl chloride (PVC) is used as the sheath, which has wear - resistant and anti - corrosion properties and can protect the cable from external environmental damage. In terms of application scenarios, small - section specifications (such as 1×70mm² and 1×95mm²) are suitable for small industrial equipment and building distribution branches; Medium - sized sections (such as 1×120mm² to 1×300mm²) can meet the needs of large - scale building total power distribution and small and medium - sized motor power supply; Large sections (such as 1×400mm² and above) are applicable to high - current transmission scenarios such as industrial park main lines and substation outgoing lines. Overall, relying on its structural rationality and specification diversity, this series of cables can adapt to various power transmission needs under the 1kV voltage level.