Cable Rz1 - K (AS) is a 1kv class cable that meets the CPR certification standard. It has a specification of 1×240mm² and belongs to a halogen - free cable (HFFR) with a rated voltage of 0.6/1Kv. The halogen - free characteristic of this cable enables it to release fewer harmful substances during use and combustion, with high safety. It is suitable for power transmission scenarios with certain requirements for environmental protection and safety, and can achieve stable power transmission under the relevant voltage level.

The 1*240mm² cables in the U1000, R2V, and RO2V series are high-performance products specially designed for medium and high-voltage power transmission scenarios, playing a key role in power systems.​ In terms of core performance parameters, the conductor of this specification cable is made of high-purity electrolytic copper with a purity of over 99.95% and a cross-sectional area of 240mm². The DC resistance is ≤0.075Ω/km, which has excellent conductive performance. It can effectively reduce losses during high-current transmission and ensure the efficiency of power transmission. Its rated voltage covers the medium and high-voltage range, and it can be stably applied to power systems of 1kV and above, meeting the transmission needs of high voltage and large current in industrial large-scale equipment and urban power grid trunk lines.​ The flame retardant performance is a prominent advantage of this series of cables, complying with strict national and industrial flame retardant standards with an oxygen index of ≥32%, which is far higher than that of ordinary cables. In case of fire, it can not only effectively inhibit the spread of flame, with the flame spread speed being more than 50% lower than that of ordinary cables, but also can self-extinguish within 30 seconds after the fire source is removed. At the same time, the smoke concentration released during combustion is low and the toxicity is small, with the smoke density rating (SDR) ≤60. It buys valuable time for personnel evacuation and equipment rescue, greatly improving the fire safety factor of the power system.​ The insulation layer and sheath materials are optimized through special formulas, using a combination of high-voltage resistant and aging resistant cross-linked polyethylene (XLPE) and flame retardant polyvinyl chloride (PVC). The long-term working temperature of the XLPE insulation layer can reach 90℃, and the short-term overload temperature can reach 130℃. The insulation resistance is ≥1000MΩ·km, which can maintain stable insulation performance in complex environments such as high temperature and humidity, effectively preventing electric leakage and short-circuit accidents. The PVC sheath has excellent mechanical strength, with a tensile strength of ≥14MPa and an elongation at break of ≥180%, which can resist external mechanical impact, wear and chemical corrosion, and protect the internal structure from damage.​ In terms of application scenarios, the 1*240mm² specification cable, relying on its large cross-section and high current-carrying capacity, is widely used in the connection of large transformers and power supply for heavy machinery in the industrial field, such as blast furnace equipment in iron and steel plants and large reaction devices in chemical plants, providing stable power support for high-power equipment. In urban power grid construction, it can be used as a trunk cable for connection between substations and laying in urban underground cable tunnels, acting as the "artery" of urban power transmission. In addition, it can also be found in new energy fields such as grid-connected lines of large photovoltaic power stations and wind farms, adapting to the high-voltage and large-current transmission needs of new energy power generation systems.​ In the production process, the manufacturing process of the cable is fully controllable and highly precise. Conductor stranding adopts multi-head wire drawing and precision stranding technology to ensure that each strand of copper wire is evenly arranged and under consistent force, avoiding the impact on conductive performance due to local stress concentration; the insulation layer extrusion adopts a three-layer co-extrusion process. By precisely controlling temperature, pressure and extrusion speed, the XLPE material is evenly coated on the conductor, with the thickness deviation controlled within ±0.1mm, ensuring the compactness and stability of the insulation layer. The sheath extrusion uses a special mold design to make the PVC material closely combine with the insulation layer without bubbles or gaps, enhancing the sealing and mechanical strength of the overall structure. Each batch of cables must undergo strict quality inspection, including more than 20 indicators such as voltage resistance test, partial discharge test, and flame retardant performance test, to ensure that the products 100% meet relevant standards.​ The packaging and transportation links also pay attention to details. The cable is packaged with high-strength wooden reels, and the diameter of the reel is customized according to the length of the cable, usually 2-3 meters, which can bear a single reel weight of more than 5 tons. The outer side of the reel is wrapped with waterproof canvas and plastic film, which has moisture-proof, dust-proof and anti-corrosion functions, suitable for long-distance transportation and open-air storage. During transportation, special freight vehicles are used, equipped with anti-skid fixing devices to prevent the cables from rolling and colliding during transportation. At the same time, mixing with sharp objects and corrosive substances is strictly prohibited to ensure that the cables remain intact when delivered to the destination.​ The after-sales guarantee system is perfect, providing a 24-month quality guarantee period from the date of delivery. During this period, if there are problems such as conductor breakage, insulation layer aging, and flame retardant performance not up to standard due to the product's own quality, free replacement or return services can be enjoyed. The professional technical team also provides full technical support, including installation guidance, on-site testing, fault diagnosis, etc., and dispatches technical personnel to guide the installation on-site for large-scale engineering projects to ensure that the cable laying meets the specifications. Regular return visits to customers are made to provide cable maintenance suggestions, such as conducting an insulation resistance test every 2 years and regularly cleaning surface stains, to help customers extend the service life of the cables.

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.