The 15kv 3core 35mm² XLPE insulated 133% insulation armor cable is a high-performance cable specially designed for medium-voltage power transmission, featuring reliable electrical performance and strong environmental adaptability, and is widely applicable to various complex scenarios.​ In terms of specification parameters, "15kv" specifies its rated voltage, which can meet the power transmission needs of medium-voltage distribution systems, suitable for urban power grids, industrial parks and other medium-voltage power supply networks. The "3core" structure means that the cable contains three independent conductors. This design can transmit three-phase alternating current at the same time without laying additional neutral wires, simplifying the installation process and improving space utilization, especially suitable for laying in limited spaces such as cable trenches and pipelines. 35mm² refers to the cross-sectional area of each conductor. The current-carrying capacity of this specification is moderate, which can not only meet the electricity demand of small and medium-sized industrial equipment and commercial buildings, but also control the overall size and weight of the cable to a certain extent, facilitating transportation and installation.​ XLPE insulation is one of the core advantages of this cable. Cross-linked polyethylene material has excellent dielectric properties, high insulation resistance, can effectively resist the risk of electrical breakdown under 15kv voltage, and ensure the stability of power transmission. At the same time, it also has good temperature resistance, can work stably for a long time in the ambient temperature of -40℃ to 90℃, and can withstand higher temperatures during short-term overload, suitable for occasions with large temperature fluctuations. In addition, XLPE material has strong chemical stability, is not easy to be affected by corrosive media such as acid, alkali and oil, and prolongs the service life of the cable.​ The characteristic of "133% insulation" reflects the enhancement of its insulation performance. Under normal circumstances, the standard insulation thickness can already meet the basic insulation requirements, while the 133% insulation thickness further increases the safety margin of the cable, reducing the probability of failure caused by local damage to the insulation layer, especially suitable for environments with strict requirements on insulation performance such as humid, dusty or vibrating environments, such as underground tunnels and chemical plant areas.​ The armor layer is another important structure of the cable, which provides solid mechanical protection for the cable. The armor material is mostly steel tape or steel wire, which can effectively resist external mechanical impact, extrusion and stretching, preventing the cable from being damaged by external forces during laying, burying or operation. For example, when directly buried, the armor layer can resist soil pressure and stone impact; when laid through pipes, it can reduce friction and wear with the inner wall of the pipe. This enhanced mechanical protection enables the cable to be applied to a variety of laying methods, including direct burial, pipe laying, bridge laying, etc., expanding its application range.​ In conclusion, the 15kv 3core 35mm² XLPE insulated 133% insulation armor cable, with its reasonable structural design, high-quality material selection and enhanced performance characteristics, performs excellently in the field of medium-voltage power transmission. It can be widely used in urban distribution network transformation, industrial enterprise power supply, commercial complex power distribution and other scenarios, providing a strong guarantee for the safe and stable operation of the power system.