33kv (35) Kv 90c Sac Spaced Aerial Cable 1X185 mm2 1X240mm2 AAC/ACSR Sac

1×185mm² Conductor: This core is optimized for substation feeder lines and secondary distribution networks, where it connects medium-voltage transformers to local grids. Its 320A capacity supports residential neighborhoods with 5,000+ households or small industrial clusters, delivering power with minimal losses (≤2% over 200 meters).

1×240mm² Conductor: Designed for high-load applications, this larger core handles 400A, making it ideal for corridors linking industrial parks, data centers, and commercial hubs. It efficiently transmits power over long distances (up to 1km) with voltage drop below 5%—a critical metric for sensitive equipment like manufacturing machinery.

AAC (All-Aluminum Conductor): Composed of 99.5% pure aluminum strands with 61% IACS conductivity, AAC excels in urban and suburban settings with moderate spans (up to 80 meters). Its lightweight design (30% lighter than copper equivalents) reduces stress on utility poles, simplifying installation in areas with existing infrastructure. AAC’s flexibility is particularly valuable in tight urban spaces, where it can navigate around buildings, trees, and other obstacles without compromising performance.

ACSR (Aluminum Conductor Steel-Reinforced): This variant combines aluminum strands (outer layer) with a galvanized steel core, boosting tensile strength to 18kN—50% higher than AAC. The steel core enables 100-meter spans, eliminating the need for intermediate poles in rural areas or wide river crossings. ACSR also offers superior corrosion resistance, making it suitable for coastal regions (salt spray) and industrial zones (chemical exposure). While slightly stiffer than AAC, it retains sufficient flexibility for standard overhead bends.

Enhance Heat Dissipation: The 30% improvement in cooling efficiency allows the cable to operate continuously at 90°C—10°C higher than traditional bundled cables—without performance degradation. This is vital in desert regions or urban heat islands, where ambient temperatures can exceed 40°C.

Reduce Corona Effect: Spacing minimizes electrical discharge (corona) at conductor surfaces, lowering energy loss by 1-2% annually. In high-humidity areas, this also prevents ozone formation, which can degrade insulation over time.

Improve Fault Detection: The spaced layout simplifies visual inspections, making it easier to identify damaged insulation or loose connections during routine checks.

Electrical Performance: XLPE provides a dielectric strength of 25kV/mm, far exceeding the 33kV operating voltage, and resists partial discharge (a common cause of insulation breakdown). Its low dielectric loss (<0.002 at 50Hz) minimizes energy waste, critical for long transmission lines.

Thermal Resistance: Rated for -40°C to 90°C, XLPE remains stable in extreme climates: from Siberian winters to Middle Eastern summers. It avoids the brittleness of PVC in cold or the melting risk of rubber in heat, ensuring consistent performance year-round.

Environmental Durability: Infused with 3% carbon black, XLPE resists UV degradation, retaining 90% of its tensile strength after 20 years of direct sunlight. It is also hydrophobic, repelling rain, snow, and dew to prevent water ingress—a key advantage in monsoon-prone regions.

Current Capacity:

1×185mm²: 320A (suitable for 10MVA transformers)

1×240mm²: 400A (suitable for 15MVA transformers)

Voltage Drop: Over 1km, drop is <5% (1.65kV at 33kV), ensuring stable power for end users.

Short-Circuit Rating: Withstands 25kA fault currents for 2 seconds, giving protective relays time to isolate faults.

Tensile Strength:

AAC: 8kN (supports 80-meter spans)

ACSR: 18kN (supports 100-meter spans)

Flame Resistance: XLPE insulation is self-extinguishing (UL 94 V-0), reducing fire risk in vegetation-rich areas.

Urban Distribution: 1×185mm² AAC Cables integrate into dense city grids, connecting substations to residential and commercial areas. Their lightweight design eases installation in crowded utility corridors.

Rural Electrification: 1×240mm² ACSR variants bridge long distances between villages and main grids, using 100-meter spans to reduce pole costs by 50% in remote areas.

Industrial Corridors: Both sizes serve factories and data centers, where 90°C operation handles peak loads from machinery or server cooling systems.

Renewable Energy Integration: The cable connects solar farms or wind parks to the grid, withstanding the cyclic loads of variable renewable generation.

IEC 61089: Certifies performance for medium-voltage Overhead Cables, including conductor resistance, insulation thickness, and flame retardancy.

ASTM B230: Validates aluminum conductor quality, ensuring consistent conductivity and tensile strength across production batches.

ANSI C119.4: Specifies requirements for spacers in aerial cables, confirming the SAC design’s mechanical stability.

CE Marking: Indicates compliance with EU directives, allowing use in European markets without additional testing.

Installation Efficiency: AAC’s lightweight design allows a 3-person crew to install 200 meters in 8 hours, while ACSR requires 10 hours due to its steel core. The spaced layout eliminates the need for complex bundling hardware, cutting labor time by 20%.

Routine Maintenance: Annual visual inspections (checking for damaged spacers or insulation) are sufficient for most applications. In high-pollution areas, bi-annual cleaning with water (no chemicals) removes dust, which can reduce heat dissipation.

Lifespan: With proper installation, the cable lasts 40+ years, aligning with the 50-year lifespan of utility poles. This minimizes replacement costs and disruption to power supplies.

Material Efficiency: Aluminum’s low embodied energy (5% of copper’s) reduces the carbon footprint by 60% compared to Copper Cables.

Reduced Infrastructure: ACSR’s 100-meter spans cut pole requirements by 30% in rural areas, preserving green spaces and lowering concrete use.

Energy Savings: Improved heat dissipation and low dielectric loss reduce energy waste by 2-3% annually, saving utilities $100,000+ per 100km of cable over 40 years.

Recyclability: 100% recyclable at end-of-life, with 95% material recovery—supporting circular economy initiatives in the power sector.