12/20/24kv NFC 33 226 3X240 mm2 Alu Cis Overhead Cable Hta Torsade Souterrain Cable with XLPE Insulation

Electrical Performance: Undergoes 100kV impulse tests and 30kV AC withstand tests for 1 hour, withstanding transient voltage spikes from lightning or switching operations without insulation breakdown.

Thermal Endurance: Validated for continuous operation at 90°C, with short-term overload capacity up to 130°C—proven through 10,000 hours of accelerated aging tests at 135°C.

Mechanical Integrity: Meets strict criteria for tensile strength, bending radius (12× cable diameter), and impact resistance, surviving installation stress and decades of environmental wear.

Fire Safety: Complies with flame propagation limits (≤0.8m/min) and low smoke emission requirements, critical for underground tunnels and urban installations near populated areas.

12kv Applications: Ideal for rural electrification, powering villages and agricultural facilities with load demands up to 5MVA. Its lightweight Aluminum Conductors reduce strain on overhead poles in remote areas.

20kv Networks: Serves urban distribution grids, connecting substations to commercial districts and residential neighborhoods. The 20kv rating balances power capacity (8MVA) with safety margins for densely populated areas.

24kv Industrial Use: Powers heavy-duty industrial complexes, including manufacturing plants and refineries, where reliable transmission of up to 10MVA is critical for machinery and process control systems.

Alloy Composition: Crafted from AA-8030 aluminum alloy—infused with magnesium, silicon, and iron—delivering 61% IACS conductivity (comparable to 40% of copper’s weight). This alloy enhances tensile strength to 160MPa, 30% higher than pure aluminum, preventing sag in overhead spans.

Stranding Design: Each conductor comprises 37 strands (2.9mm diameter) twisted at a 12× lay length, reducing skin effect (AC resistance increase at high frequencies) by 15% compared to solid conductors. This design ensures efficient power delivery even in variable-frequency drive applications.

Current Capacity: Carries 320A continuously at 90°C (XLPE insulation) in overhead installations and 280A in underground deployments (due to higher ambient temperatures). This supports 8–10MVA loads, sufficient for a small town or mid-sized industrial park.

Corrosion Resistance: A natural oxide layer, reinforced by optional tin plating, resists degradation from moisture, industrial pollutants, and salt spray—critical for coastal or chemical plant installations.

Molecular Engineering: Undergoes peroxide cross-linking, transforming linear polymer chains into a three-dimensional network. This structure eliminates "cold flow" (insulation creep) at high temperatures, ensuring stable performance even at 90°C continuous operation.

Dielectric Prowess: Boasts a dielectric strength of 30kV/mm—40% higher than EPR (ethylene propylene rubber) insulation—preventing partial discharges that erode insulation in medium-voltage systems. Its low dielectric loss (tanδ <0.001 at 20°C) minimizes energy waste, reducing operational costs.

Temperature Range: Thrives from -40°C (arctic winters) to 90°C (continuous) and 130°C (short-term overloads), outperforming PVC by 20°C in high-temperature tolerance. This range makes it suitable for desert solar farms and frozen northern grids alike.

Environmental Shielding: Resists moisture (water absorption <0.05% by weight), UV radiation (90% retention of flexibility after 20 years outdoors), and chemicals (oils, acids, alkalis). Field tests in coastal areas show no insulation degradation after 15 years of salt spray exposure.

Hta (Haute Température): Signifies enhanced heat resistance, enabling continuous operation at 90°C—20°C higher than standard 70°C cables. This allows 20% higher current carrying capacity, a game-changer in space-constrained urban grids where upsizing is impractical.

Cis (Installation Intégrée): Certifies suitability for both overhead and underground installations, supported by:

Overhead Optimization: Lightweight aluminum conductors and UV-stabilized XLPE withstand wind speeds up to 120km/h and radial ice loads of 10mm.

Underground Toughness: Optional aluminum or steel armor (1.5mm thickness) resists impact from rocks and trench equipment, with water-blocking tapes preventing moisture ingress in flooded trenches.

Electromagnetic Compatibility (EMC): Twisting reduces electromagnetic interference (EMI) by 40% compared to parallel conductors, minimizing noise in nearby communication cables or sensitive industrial equipment.

Mechanical Balance: Equalizes tension across conductors during installation and thermal expansion, preventing uneven stress that causes insulation cracking. This is critical for Underground Cables, where temperature fluctuations can create axial forces.

Flexibility: The helical lay allows bending to a radius of 12× the cable diameter (60mm for 50mm outer diameter), simplifying routing around obstacles in underground trenches or overhead pole hardware.

Water Blocking: The twisted configuration, paired with swellable tape between conductors, creates a labyrinth that slows water migration in case of jacket damage—buying time for repairs in underground installations.

Span Capability: Supports spans up to 80 meters between poles when paired with messenger wires, exceeding the 60-meter limit of Standard Aluminum cables. This reduces the number of poles needed in rural areas, lowering project costs.

Wind Vibration Damping: The Torsade design, combined with a smooth XLPE outer jacket, reduces aeolian vibration (wind-induced oscillation) by 30%, minimizing fatigue on pole attachments and conductor strands.

UV and Ozone Resistance: XLPE insulation retains 90% of flexibility after 20 years of direct sunlight exposure, while ozone resistance (tested at 200ppm for 1,000 hours) prevents cracking in polluted urban environments.

Installation Efficiency: Lightweight aluminum conductors (4.2kg/m) allow a two-person crew to install 500 meters per day—twice the rate of Copper Cables—using standard pulling equipment.

Armor Options:

Aluminum Armor: Lightweight (3.2kg/m) with corrosion resistance, ideal for direct burial in acidic or sandy soils. It withstands 500N of impact force without conductor damage.

Steel Armor: Offers 40% higher tensile strength (180MPa) for rocky terrain or areas with high mechanical stress (e.g., under roadways).

Water Blocking: Longitudinal water swellable tapes and radial water-blocking filler prevent moisture ingress, ensuring insulation resistance >100 MΩ at 1kV even after 24 hours of submersion.

Trench Compatibility: Outer diameter of 50mm (unarmored) to 58mm (steel-armored) fits standard 100mm PVC or HDPE conduits, simplifying retrofits in existing underground networks.

Thermal Management: XLPE’s low thermal resistance (0.25 K·m/W) dissipates heat efficiently in buried installations, maintaining current capacity even in high-soil-resistivity areas.

Abrasion Resistance: The XLPE jacket withstands 5,000 cycles of abrasion with a 5mm steel wheel (10N force) without exposing conductors—critical for underground installation in rocky soil.

Chemical Inertness: Resists degradation from mineral oils, gasoline, and agricultural chemicals, making it suitable for installation near fuel storage facilities or farmland.

Temperature Cycling: Endures 1,000 cycles from -40°C to 90°C without insulation cracking, ensuring reliability in regions with extreme seasonal temperature swings.

Rodent and Insect Resistance: The armor and XLPE jacket’s hardness (Shore D 80) deter gnawing, while optional repellent additives protect against termites in tropical regions.

Urban Distribution: Connects substations to residential neighborhoods and commercial districts, with underground variants reducing visual clutter in city centers.

Industrial Zones: Powers manufacturing plants, refineries, and logistics hubs, withstanding industrial pollutants and high ambient temperatures.

Rural Electrification: Bridges remote communities via overhead spans, with lightweight aluminum reducing pole stress in areas with limited infrastructure.

Renewable Energy: Transmits power from wind farms or solar parks to the grid, with UV-resistant XLPE thriving in open landscapes.

Coastal Networks: Resists salt spray in seaside cities, with tinned conductors and aluminum armor preventing corrosion.

Lightweight Handling: Aluminum conductors reduce weight by 50% vs. copper, allowing manual lifting without heavy machinery—critical for remote rural installations.

Tool Compatibility: Works with standard compression lugs and termination hardware, eliminating the need for specialized equipment.

Unarmored Flexibility: Unarmored variants bend easily for overhead installation, while armored versions feature a smooth outer layer for easy pulling through conduits.

Color Coding: Phase conductors are color-coded (brown/black/gray) for quick identification, reducing termination errors by 30%.

IEC 60502-2: Adheres to International Electrotechnical Commission standards for medium-voltage cables, ensuring compatibility with European and Asian networks.

CE Marking: Certified for sale in the EU, meeting health, safety, and environmental requirements.

NF C15-100: Complies with French electrical code, enabling use in public infrastructure projects.

Optional UL Certification: Available for North American markets, covering insulation performance and safety standards.

Low Maintenance: XLPE insulation requires no periodic reconditioning, reducing lifecycle costs by 30% compared to paper-Insulated Cables.

Energy Savings: Low conductor resistance cuts line losses by 15% vs. smaller-gauge cables, saving 8,000 kWh annually per 1km in 20kv networks.

Total Cost of Ownership: While aluminum variants cost 40% less than copper initially, their 40-year lifespan and lower installation costs result in a 3× lower total cost of ownership.

Replacement Interval: Outlasts PVC-Insulated Cables by 15–20 years in harsh environments, minimizing downtime for replacements.

Recyclability: Aluminum conductors are 100% recyclable, with recycling using 95% less energy than primary production. XLPE insulation is recyclable into plastic pellets for secondary applications.

Low Carbon Footprint: Lightweight design reduces transportation emissions by 50% compared to Copper Cables, while energy-efficient transmission cuts operational carbon output.

Fire Safety: Self-extinguishes within 30 seconds of ignition, meeting NFC 33-226’s flame propagation limits for underground tunnels and enclosed spaces.

Low Smoke Emission: XLPE insulation emits minimal smoke during combustion, ensuring visibility for emergency responders in case of fire.