This product is N2X-Oh Cable 3*240mm² copper power building cable, a high-performance cable specially designed for building power systems with a rated voltage of 0.6/1kV, which can perfectly adapt to various low-voltage power distribution scenarios in buildings.​ The cable adopts a 3-core design, with each core conductor having a cross-sectional area of 240mm², and high-purity electrolytic copper with a purity of over 99.95% is used as the conductor material for all cores. High-purity copper not only has excellent electrical conductivity with a conductivity of over 58MS/m, which can effectively reduce power loss during energy transmission and ensure efficient power delivery, but also has good ductility and oxidation resistance, which can reduce the resistance increment at joints and extend the service life of the cable.​ The N2X-Oh model indicates that the cable has specific environmental resistance. The insulation layer is made of cross-linked polyethylene (XLPE) material, which has excellent aging resistance, can withstand temperature changes from -40℃ to 90℃, and has strong resistance to mechanical wear. It can adapt to complex environmental conditions inside buildings, such as extrusion during wall construction, friction in cable trays, and temperature fluctuations in daily use. Its compact structural design controls the outer diameter within a reasonable range, with a bending radius of not less than 12 times the cable diameter, making laying and installation convenient, suitable for wiring in various environments such as building walls, cable trays, and pipelines.​ This cable is widely used in construction projects such as commercial buildings, office buildings, and large residential communities, providing reliable power support for high-power facilities such as central air conditioners, elevators, and fire protection systems. It has passed multiple national electrical safety standard certifications such as GB/T 12706 and is an ideal choice for building power transmission.