This product is a DC copper core cable, supplied in reels, covering two specifications: 4185+170mm² and 4X240+1X120mm², suitable for DC power transmission scenarios.​ The cable uses high-purity copper conductors with excellent conductivity and extremely low resistance loss, enabling efficient transmission of DC power. The copper material also has good mechanical strength and ductility, which can withstand conventional tension during laying and ensure structural stability.​ The insulation layer is suitable for DC transmission needs, with excellent DC voltage resistance. It can effectively suppress partial discharge and avoid insulation aging. The sheath layer is made of wear-resistant materials, which can resist friction and collision during laying and use, protecting the internal structure.​ In the 4+1 core structure design, 4 main cores are responsible for power transmission, and 1 auxiliary core is used for grounding protection, improving electrical safety. The 4185+170mm² is suitable for medium and high-power DC equipment (such as large energy storage systems), while the 4X240+1X120mm² is adapted to higher-power scenarios (such as DC charging pile clusters).​ The reel packaging is convenient for storage and cutting, suitable for new energy storage, DC charging piles, industrial DC motors and other scenarios, providing a stable and safe solution for DC power transmission.​