The 10kV, 33kV 3×95mm² XLPE Insulated Aluminum Conductor Aerial Bundled Cable (ABC) is a core equipment developed for medium and large-capacity power transmission in the high-voltage power distribution field. Relying on the core advantages of "high-voltage tolerance, large cross-section with high current-carrying capacity, and full insulation protection", it is widely used in 10kV county-level distribution network trunk lines, 33kV regional power grid interconnection lines, high-voltage incoming lines of large industrial parks, and grid-connected lines of new energy power stations (photovoltaic, wind power). It has become an efficient solution to replace traditional high-voltage bare wires and multiple single-core cables. Its design closely meets the needs of high-voltage systems for "safety and stability, low-loss transmission, and weather resistance", and achieves precise breakthroughs in conductor material selection, insulation performance upgrading, and high-voltage structure optimization. It can not only adapt to the differentiated transmission needs of two high-voltage levels (10kV and 33kV) with a single-circuit current-carrying capacity of more than 300A but also resist interference from complex outdoor environments (strong winds, ice coating, industrial pollution), providing key support for the safe and efficient operation of high-voltage power distribution networks. In terms of conductor and cross-section configuration, the core competitiveness of this cable lies in the high-purity aluminum conductor and the "3-core full large cross-section" design. The conductor is made of high-purity electrolytic aluminum (content ≥99.7%), processed by continuous extrusion molding and concentric stranding processes. Compared with traditional aluminum alloy conductors, pure aluminum conductors have more stable conductive performance (conductivity ≥62% IACS) in high-voltage scenarios, and the material cost is reduced by more than 30%. At the same time, its mechanical properties are enhanced through process optimization: tensile strength ≥120MPa, elongation ≥15%, which can withstand a pole span of 100-150 meters, reducing the number of poles by 25% compared with traditional bare wires. The 3×95mm² full large-cross-section configuration adopts a three-phase structure of "3 phase lines" (no neutral line, suitable for high-voltage three-phase three-wire systems), with each phase line having a cross-section of 95mm². The DC resistance at 20℃ is strictly controlled within ≤0.19Ω/km (10kV level) and ≤0.18Ω/km (33kV level), and the line loss rate can be controlled within 2.0%, which is much lower than the average loss level of 3.5% of traditional bare wires. The large cross-section design enables the cable to have a rated current-carrying capacity of ≥280A at the 10kV level and ≥250A at the 33kV level, which can meet the medium and large-capacity transmission needs of 5000-8000kW for 10kV lines and 15000-20000kW for 33kV lines, adapting to county-level and regional-level power transmission scenarios. The XLPE insulation layer is a key barrier to ensure the safe operation of the cable under high voltage. Each aluminum conductor is covered with high-density cross-linked polyethylene (XLPE) as the insulation material, and the insulation thickness is precisely designed differently according to the voltage level: 3.4-3.6mm for the 10kV level and 4.0-4.2mm for the 33kV level. This not only meets the insulation strength requirements of the corresponding voltage level (power frequency withstand voltage ≥30kV/1min without breakdown and impulse withstand voltage ≥75kV for the 10kV level; power frequency withstand voltage ≥70kV/1min without breakdown and impulse withstand voltage ≥170kV for the 33kV level) but also has excellent comprehensive performance. After silane cross-linking treatment, the molecular structure of XLPE is three-dimensional network-like, with a long-term allowable operating temperature of 90℃ and a maximum short-circuit withstand temperature of 250℃ (1 second for a short time), which can adapt to sudden temperature changes caused by load fluctuations in high-voltage systems (such as equipment startup and shutdown in industrial parks and output changes of new energy power stations) and avoid thermal aging and cracking of the insulation. Its dielectric loss tangent value is ≤0.0005 (20℃, 50Hz), and the volume resistivity is ≥1×10¹⁴Ω·cm, with stable insulation performance. It can effectively suppress high-voltage partial discharge (partial discharge capacity ≤5pC, far lower than the industry limit of 10pC), reducing the risk of high-voltage short circuits and leakage caused by insulation breakdown. In addition, XLPE insulation also has excellent weather resistance and corrosion resistance. After 2000 hours of UV irradiation test, the tensile strength retention rate is ≥85% without discoloration or cracking; after 72 hours of immersion in 5% sulfuric acid or 5% sodium hydroxide solution, the insulation performance does not decrease significantly. It can resist harsh environments such as outdoor exposure, rain, snow, ice coating, and industrial acid-base haze for a long time, significantly extending the service life of the cable to more than 30 years. In terms of structure and high-voltage adaptability, the bundled design and mechanical performance advantages of this cable are remarkable. The 3 high-voltage phase lines are integrated into one by parallel bundling, and a weather-resistant HDPE sheath (thickness 2.5-3.0mm) can be added to the outer layer as needed. The overall structure is compact (the outer diameter of 10kV unsheathed cable is about 42-44mm, and 33kV is about 48-50mm), and the weight per unit length is reasonably controlled (about 4.2kg/m for 10kV and 4.8kg/m for 33kV), which is more than 70% lighter than copper-core high-voltage cables of the same cross-section. It greatly reduces the load on the poles and simplifies the laying process - erection can be completed with high-voltage wire-releasing machinery, and the installation efficiency is 50% higher than that of traditional multiple single-core cables. It is especially suitable for high-voltage scenarios that require long-distance spans such as open county-level areas and surrounding areas of new energy power stations. In terms of high-voltage characteristics, the cable adopts a special shielding design (semi-conductive shielding layers are added to both the inner and outer sides of the insulation layer, with a thickness of 0.5-0.8mm), which effectively suppresses high-voltage electric field distortion and reduces corona loss. At the same time, its lightning impulse withstand performance is excellent: the 10kV level can withstand an impulse voltage of 75kV (1.2/50μs), and the 33kV level can withstand 170kV (1.2/50μs), adapting to the needs of high-voltage lines in thunderstorm-prone areas. In terms of mechanical performance, the fatigue resistance of the aluminum conductor after 10,000 bending cycle tests has a breaking strength retention rate of ≥85%, which can resist dynamic tension caused by strong winds and ice coating. The minimum bending radius of the cable is 20 times the outer diameter (about 840mm for 10kV cables and 960mm for 33kV cables), and no excessive stretching is required during laying, avoiding damage to the insulation and conductor, and further ensuring high-voltage construction safety and operation stability. In practical application scenarios, the value of this cable is fully reflected. In the transformation of 10kV county-level distribution network trunk lines, the 3×95mm² specification can replace traditional multiple 70mm² bare wires, with a single-circuit current-carrying capacity of ≥280A, which can meet the overall electricity demand of 10-15 administrative villages (about 5,000 households), reduce the number of line laying, lower the area of farmland and forest land occupied by poles, and help the county-level distribution network upgrade to "lightweight and efficient". In 33kV regional power grid interconnection, its 3×95mm² cross-section and high insulation strength can realize power interconnection between different counties or industrial parks. For example, the surplus power from County A is transmitted to Industrial Park B, with a line loss rate of only 1.8%, which is 1.7 percentage points lower than that of traditional lines, saving about 120,000 kWh of electricity loss annually. In the high-voltage incoming lines of large industrial parks, the 10kV specification can be used as the outgoing cable of the 110kV substation inside the park to provide high-voltage power for multiple factories in the park, while the 33kV specification can be directly connected to the regional power grid, eliminating the need for an intermediate voltage transformation link (e.g., 33kV to 10kV) and improving power supply efficiency by 8-10%. In new energy power station grid connection, its weather resistance and high-voltage adaptability make it suitable for the outdoor environment of photovoltaic power stations and wind farms - for instance, in a 100MW photovoltaic power station, a single circuit of 33kV 3×95mm² cable can fully carry the station's rated output power (about 18,000kW), avoiding the need for parallel laying of multiple small-cross-section cables and reducing the complexity of grid connection systems. Even in wind farms with strong wind loads (up to 22m/s), the cable's mechanical stability ensures no conductor breakage or insulation damage, guaranteeing the continuous delivery of wind power to the grid. In terms of economic and environmental value, this cable also has significant advantages. In terms of material cost, pure aluminum conductors are more than 50% cheaper than copper conductors, XLPE insulation materials have high cost-effectiveness, and the bundled structure reduces the consumption of auxiliary materials (such as poles and installation hardware). The overall procurement cost is 55-60% lower than that of copper-core high-voltage cables with the same current-carrying capacity. In terms of operation and maintenance cost, its 30-year design service life and excellent fault resistance reduce the frequency of line replacement and maintenance. The full-life cycle operation and maintenance cost is only 1/3 of that of traditional high-voltage bare wires - traditional bare wires require regular patrols (2-3 times a month), anti-ice treatment in winter, and frequent replacement of corroded hardware, resulting in annual operation and maintenance costs of about \(5,000 per kilometer, while this ABC cable only needs quarterly routine inspections and annual electrical performance tests, with annual operation and maintenance costs of less than \)1,700 per kilometer. In terms of environmental protection, pure aluminum conductors can be 100% recycled, and XLPE insulation materials can achieve resource recycling after harmless treatment, in line with the "green power grid" concept. Meanwhile, the bundled structure reduces the space occupied by lines - compared with traditional 3 separate bare wires (each with a spacing of 0.8-1.0 meters), the 3×95mm² ABC cable only requires a single line channel, reducing the occupation of ecological space along the line by 60-70%. This is particularly suitable for high-voltage power grid construction around ecological protection areas or farmland, minimizing the impact on local flora and fauna and agricultural production. In conclusion, through conductor material optimization, high-voltage insulation upgrading, and large-cross-section structure innovation, the 10kV, 33kV 3×95mm² XLPE Insulated Aluminum Conductor Aerial Bundled Cable (ABC) has achieved multiple values of "high-voltage tolerance, high current-carrying capacity, economy, and environmental protection". It not only solves the pain points of traditional high-voltage power distribution lines such as "high loss, large land occupation, and difficult operation and maintenance" but also can adapt to the power supply needs of diverse high-voltage distribution scenarios such as county-level areas, industry, and new energy. It provides key equipment support for the upgrading and transformation and high-quality development of high-voltage power distribution networks and is one of the important products promoting technological progress in the high-voltage power distribution field.