The Nayy aluminium conductor PVC cable is a single-core cable designed for medium and high-voltage power transmission, featuring high-quality aluminium conductors and a double-layer PVC protective structure. It is suitable for power distribution scenarios in industrial, commercial, and large-scale infrastructure projects. This cable series offers two cross-sectional specifications: 1X185 mm² and 1X240 mm², catering to power transmission needs under different load intensities while balancing economy and reliability.​ In terms of structure, the core of the cable is a high-purity aluminium conductor, which undergoes annealing to achieve excellent electrical conductivity and flexibility. The choice of aluminium conductor not only reduces the overall weight of the cable, facilitating transportation and installation, but also provides a cost advantage over copper conductors, making it particularly suitable for large-scale engineering applications. The 185 mm² conductor is ideal for medium-power transmission, such as connecting medium-sized industrial equipment or regional distribution systems; the 240 mm² conductor, capable of carrying larger currents, is commonly used in main distribution lines of large factories, high-rise buildings, or grid-connection lines of new energy power stations.​ In terms of protection, the cable adopts a double-layer PVC (polyvinyl chloride) structure: the inner layer is insulating PVC, which has excellent dielectric properties to effectively insulate current and prevent leakage. Its insulation resistance and breakdown voltage meet the standards of the International Electrotechnical Commission (IEC), ensuring stable electrical performance during long-term use. The outer layer is a sheath PVC, modified with a special formula to resist ultraviolet rays, abrasion, and chemical corrosion. It can adapt to various complex environments such as outdoor laying, underground piping, and bridge installation, ensuring the service life of the cable even in humid, dusty, or temperature-varying conditions.​ In terms of performance, the cable is designed to meet strict requirements in practical applications. Its long-term allowable operating temperature does not exceed 70°C, and it can withstand high temperatures of 160°C during short circuits (lasting no more than 5 seconds), maintaining structural stability in case of sudden overloads. In terms of mechanical properties, the minimum bending radius of the cable is 6 times the outer diameter for fixed laying and 12 times the outer diameter for dynamic laying, allowing flexible installation in narrow spaces. It also has high tensile strength, reducing the risk of damage during handling and construction.​ In application scenarios, the 1X185 mm² specification is often used in distribution trunks of commercial parks, power supply for production lines in medium-sized manufacturing industries, and power transmission for public facilities such as urban street lights and transportation hubs. The 1X240 mm² specification is more suitable for high-voltage motor connections in large industrial plants, backup power lines in data centers, and collector lines in solar photovoltaic power stations and wind farms. Additionally, due to the lightweight nature of aluminium conductors, the cable performs excellently in scenarios requiring reduced structural load, such as bridges and high-rise buildings.​ In terms of installation and maintenance, the cable supports various methods such as open laying, concealed laying, and pipe threading. During laying, direct contact with sharp objects should be avoided to prevent sheath damage. Special aluminium conductor joints should be used for connection to ensure stable conductivity, and insulation testing and grounding treatment should be performed in accordance with local electrical regulations. Regular inspection of sheath integrity and insulation resistance can further extend the service life of the cable.​ In conclusion, the Nayy aluminium conductor PVC cable (1X185 mm², 1X240 mm²) stands out as an ideal solution in the medium and high-voltage power transmission field, thanks to the cost advantage of aluminium conductors, reliable protection of PVC materials, and flexible specification options. It not only meets power demands in different scenarios but also balances economy and safety, providing solid support for the stable operation of power systems.