2xsey and 2xseyry cables are two types of high-performance medium-voltage power armored cables, widely applicable to power transmission scenarios with voltage levels of 3.6/6kv and 6/10kv. Their design fully takes into account the complexity and harshness of medium-voltage power transmission environments, achieving an efficient integration in structure and performance.​ In terms of structure, both cables adopt a multi-layer composite design. The conductor part is made of high-purity electrolytic copper, ensuring low loss and stability in current transmission, which can effectively meet the current-carrying requirements in medium-voltage circuits. The insulation layer is made of high-quality cross-linked polyethylene (XLPE) material, which has excellent electrical insulation performance, aging resistance and thermal stability. It can maintain good insulation effect during long-term use, reducing the risk of short circuit and leakage. As a key protective structure, the armor layer usually adopts steel tape or steel wire armoring, which not only significantly improves the mechanical strength of the cable, enabling it to resist external pressure, tension and impact, but also enhances the corrosion resistance of the cable, prolonging its service life. It is especially suitable for environments vulnerable to mechanical external forces such as underground direct burial and pipeline laying.​ In terms of performance, 2xsey and 2xseyry cables have excellent temperature resistance, and can work stably in the environment of -40℃ to 90℃, adapting to the climate conditions of different regions. At the same time, their good flame retardancy and chemical corrosion resistance enable them to operate safely in special environments such as industrial factories and chemical parks. In addition, the cable has good bending performance, which is convenient for laying and installation during construction, improving project efficiency.​ With reliable performance and wide applicability, these two cables are widely used in urban power grid transformation, industrial park power distribution, power transmission of new energy projects (such as wind power and photovoltaic), providing a solid guarantee for the stable operation of medium-voltage power systems.