This article covers three types of copper conductor cross-linked polyethylene (XLPE) insulated power cables: YJV, R2V, and RO2V, as well as three conductor cross-sectional specifications: 4×10mm², 4×16mm², and 4×25mm².​ In terms of specifications, all three are 4-core structures. The cross-sections of the main cores are 10mm², 16mm², and 25mm² respectively, adapting to different power requirements. 10mm² is suitable for power distribution of small equipment, 16mm² can meet the power transmission of medium-sized loads, and 25mm² is suitable for high-power scenarios, capable of stably transmitting electricity.​ In terms of models, YJV is a copper conductor XLPE insulated polyvinyl chloride sheathed cable with excellent electrical performance and aging resistance. R2V and RO2V may adopt different sheath materials (such as polyvinyl chloride) or structural designs. RO2V may have better weather resistance and is suitable for various laying environments.​ Such cables use copper as conductors, with good conductivity. The XLPE insulation layer has strong temperature resistance and insulation. They are widely used in building power distribution, industrial equipment power supply, etc. Their structural design balances transmission efficiency and environmental adaptability, ensuring stable power supply in various scenarios.