240mm² XLPE 4-core copper sheathed armoured cable is a power transmission line with both performance and economy, suitable for medium and low voltage distribution systems. Its core configuration consists of 4 copper conductors of 240mm², made of high-purity electrolytic copper, which has excellent conductivity, can effectively reduce energy loss during power transmission, and meet the needs of high-power power transmission.​ The insulation layer is made of cross-linked polyethylene (XLPE), which has excellent temperature resistance (-40℃ to 90℃) and electrical insulation performance, strong anti-aging and chemical corrosion resistance, and can work stably in humid, dusty and other complex environments. The outer layer adopts a composite design of copper sheath and armoured structure. The copper sheath has both sealing and moisture-proof functions and auxiliary conductive functions. The armoured layer is made of high-strength metal materials, which can resist mechanical impact, extrusion and gnawing by rodents, greatly improving the durability of the cable.​ As an economical product, the cable optimizes the production process on the premise of ensuring core performance, with more competitive cost. It is widely used in the main distribution lines of industrial plants, municipal engineering, high-rise buildings and other scenarios, providing a safe, efficient and economical transmission solution for power systems.