4c XLPE cable (120mm², 300mm² Cu conductor XLPE/SWA/PVC power cable) is a high-performance power transmission line, adopting a 4-core design with core cross-sectional areas of 120mm² and 300mm². The conductor is made of high-purity copper, which can meet the power transmission needs of different power scenarios.​ The core insulation layer of the cable is made of cross-linked polyethylene (XLPE), which has excellent temperature resistance (-40℃ to 90℃) and electrical insulation performance, with outstanding anti-aging and chemical corrosion resistance, and can operate stably in complex environments. The outer structure is sequentially composed of steel wire armoring (SWA) and polyvinyl chloride (PVC) sheath: the steel wire armoring layer provides strong mechanical protection against impact, extrusion and gnawing by rodents; the PVC sheath further enhances moisture-proof and anti-corrosion performance, extending the service life of the cable.​ This cable features flexible installation methods, supporting direct burial, pipe threading or overhead laying. It is widely used in medium and low voltage distribution systems such as industrial plants, large buildings and municipal engineering, providing safe and efficient power transmission guarantee for high-power equipment and main lines.