This abstract covers the Rvfv series cables with a rated voltage of U1000V, including three specifications: 3X120mm²+70mm², 3X150mm²+70mm², and 3X185mm²+95mm².​ In the specification identification, "3X" represents 3 main conductors, the part after "+" is the auxiliary conductor, and the number is the cross-sectional area of a single conductor (unit: mm²). In the 3X120mm²+70mm² specification, 3 main conductors of 120mm² are responsible for main power transmission, and the 70mm² auxiliary conductor can be used as a grounding or backup circuit; the 3X150mm²+70mm² main conductor has stronger current-carrying capacity and is suitable for higher-power scenarios; the 3X185mm²+95mm² main conductor has the largest cross-sectional area, and the auxiliary conductor is upgraded simultaneously, which can meet the power and safety needs of large-scale equipment.​ The rated voltage of U1000V is suitable for low-voltage power distribution systems and can be connected to industrial or civil low-voltage power grids. This series of cables adopt conductors and insulation materials that meet standards. The insulation layer has good electrical resistance, and the overall structure is suitable for fixed laying. It is applicable to factory production lines, large building distribution trunks and other scenarios, balancing transmission stability and safety redundancy.