Ar2V Yjlv single core 1X185mm, 1X300mm² aluminium cable is a high-voltage power transmission cable with flame-retardant performance. Its core advantages lie in the use of aluminium conductor and flame-retardant XLPE (cross-linked polyethylene) insulation material, combining excellent electrical performance and fire-resistant characteristics, and is widely used in power transmission, industrial power distribution and other scenarios with high requirements for safety and reliability.​ In terms of conductors, the cable uses high-purity aluminium material with a purity of ≥99.5%, which is made into a single-core structure through professional processing technology. The two cross-sectional specifications of 1X185mm² and 1X300mm² meet different transmission load requirements respectively. Among them, the DC resistance of 1X185mm² conductor at 20℃ is ≤0.173Ω/km, and 1X300mm² is ≤0.106Ω/km, which can effectively reduce energy loss during transmission. The aluminium conductor has the characteristic of light weight. Compared with copper cables of the same specification, the weight is reduced by about 40%, which greatly reduces the difficulty in transportation and laying, especially suitable for long-distance, large-span overhead or pipeline laying scenarios.​ The insulation layer is made of flame-retardant XLPE material, which has undergone special treatment and has excellent flame-retardant performance. It has passed the GB/T 18380 flame-retardant test (bundle burning test). In case of fire, it can effectively inhibit the spread of flame and reduce smoke release, buying valuable time for personnel evacuation and equipment rescue. The temperature resistance level of XLPE insulation material reaches 90℃, which can work stably for a long time under the condition of rated voltage of 10kV, and can withstand a high temperature of 250℃ during short circuit (within 5 seconds), ensuring insulation reliability under extreme working conditions. Its insulation resistance is ≥10¹⁴Ω・m, and the dielectric loss tangent is ≤0.002 (at 90℃), with excellent insulation performance, which can effectively isolate current and ensure transmission safety.​ The overall structure of the cable is compact and reasonable. In addition to the conductor and insulation layer, it is also equipped with a shielding layer and a sheath layer. The shielding layer is made of semi-conductive material, which can evenly distribute the electric field and avoid insulation layer breakdown caused by excessive local electric field strength; the sheath layer is made of weather-resistant PVC or PE material, with a tensile strength of ≥12MPa and an elongation at break of ≥125%, having good wear resistance, acid and alkali resistance and ultraviolet resistance, which can effectively protect the internal structure of the cable from external environment erosion and extend the service life of the cable.​ In terms of performance parameters, the cable has an outstanding current-carrying capacity. The 1X185mm² cable has a current-carrying capacity of about 310A when laid in air and 380A in soil; 1X300mm² has about 410A in air and 520A in soil, which can meet the power supply needs from medium-sized equipment in industrial parks to power transmission in urban distribution networks. Its minimum bending radius is 12 times the cable outer diameter (static) and 20 times the outer diameter (dynamic), which is convenient for laying construction in complex terrain and narrow spaces.​ In terms of application scenarios, Ar2V Yjlv single core aluminium cable plays an important role in many fields by virtue of its flame-retardant characteristics and reliable electrical performance. In the industrial field, it can be used in the high-voltage power distribution system of factories to provide power support for large motors, transformers and other equipment; in urban power grid construction, it is suitable for connecting lines between substations and overhead transmission lines; in high-rise buildings and large public facilities, as an emergency power supply line, it can maintain power supply for a certain period of time in case of fire and other emergencies, ensuring the normal operation of key equipment.​ In summary, Ar2V Yjlv single core 1X185mm, 1X300mm² aluminium cable, through the combination of aluminium conductor and flame-retardant XLPE insulation material, while ensuring transmission efficiency, significantly improves the safety and environmental adaptability of the cable, providing an economical and reliable solution for high-voltage power transmission.