NFC33-226 XLPE Cable Hta Cis 24kv (12/20KV) 1X240mm2

Dielectric Testing: Undergoes 100kV impulse tests and 30kV AC withstand tests for 1 hour, ensuring it resists insulation breakdown even under transient voltage spikes (e.g., lightning strikes).

Thermal Endurance: Certified to operate continuously at 90°C with short-term overloads up to 130°C, validated through 10,000 hours of accelerated aging tests at 135°C.

Mechanical Strength: Meets strict tensile, bending, and impact resistance criteria, ensuring survival during installation and decades of service.

Fire Safety: Complies with NFC33-226’s flame propagation and smoke emission limits, making it suitable for enclosed spaces like subway tunnels and industrial facilities.

12/20KV Definition: The first number (12KV) denotes the phase-to-earth voltage, while the second (20KV) represents the phase-to-phase voltage in three-phase systems. This makes it compatible with both single-phase (24kv) and three-phase (20KV phase-to-phase) networks.

Power Capacity: Transmits up to 8MVA of power—sufficient to supply a small town (5,000+ residents), an industrial park with 500hp motors, or a urban subway line. Its 24kv rating positions it between low-voltage (≤1kV) and high-voltage (≥30kV) systems, bridging critical infrastructure gaps.

Overvoltage Tolerance: Designed to withstand temporary overvoltages (e.g., from lightning or switching) up to 70kV for 1 second, exceeding NFC33-226 requirements by 15%. This protects against insulation degradation during transient events.

Molecular Structure: Undergoes a peroxide cross-linking process that transforms linear polyethylene 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 Excellence: Boasts a dielectric strength of 25kV/mm—30% higher than PVC Insulation—preventing partial discharges that cause insulation breakdown in 24kv systems. Its low dielectric loss tangent (tanδ <0.001 at 20°C) minimizes energy waste, reducing operational costs.

Thermal Range: Operates reliably from -40°C (arctic conditions) to 90°C (continuous) and 130°C (short-term overloads), outperforming EPR (ethylene propylene rubber) insulation in high-temperature stability. This range makes it suitable for industrial environments with ambient heat or high current loads.

Environmental Resistance: Resists moisture (water absorption <0.05% by weight), UV radiation, and chemicals (oils, acids, alkalis). Field tests in coastal areas show no corrosion or insulation degradation after 15 years, even with salt spray exposure.

Material Options: Available with high-purity copper (99.9% purity) or aluminum alloy (AA-8030) conductors:

Copper: Offers 100% IACS conductivity, ideal for applications requiring minimal power loss (e.g., data centers, hospitals).

Aluminum: Provides 61% IACS conductivity at 50% the weight of copper, suitable for long spans in overhead or tunnel installations.

Stranding Design: Comprises 37 Stranded Wires (2.9mm diameter each) twisted at a 12× lay length. This design enhances Flexibility, allowing bending to a radius of 12× the cable diameter during installation—critical for navigating tight corners in switchgear or tunnels.

Current Capacity: Carries 400A continuously at 90°C (copper) or 320A (aluminum) under NFC33-226’s reference conditions (ambient 25°C, soil thermal resistivity 2.5K·m/W). This supports heavy loads like industrial compressors, subway traction systems, or urban substation feeders.

Tensile Strength: Copper Conductors achieve 220MPa tensile strength, while aluminum variants reach 160MPa—sufficient to withstand installation tension and vibration in industrial environments.

Hta (Haute Température): Enhanced heat resistance, allowing continuous operation at 90°C—20°C higher than standard 70°C cables. This enables 20% higher current carrying capacity, a critical advantage in space-constrained installations where upsizing cables is impractical.

Cis (Installation Intégrée): Designed for integrated installations, including direct burial, conduit, tunnels, and cable trays. Its armor options (aluminum or steel) and jacket materials (PE or LSZH) adapt to diverse environments:

Aluminum Armor: Lightweight (3.2kg/m) with corrosion resistance, ideal for direct burial in acidic soils.

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

LSZH Jacket: Low smoke zero halogen for enclosed spaces (e.g., subway tunnels), emitting minimal toxic fumes during fire.

Abrasion Resistance: The outer jacket (PE or LSZH) resists damage from rocks, tools, or rodents. It withstands 5,000 cycles of abrasion with a 5mm steel wheel (10N force) without exposing armor—exceeding NFC33-226 requirements by 50%.

Impact Resistance: Survives a 20J impact (equivalent to a 2kg weight dropped from 1m) at -40°C without insulation cracking, ensuring reliability in cold climates or rough handling.

UV and Ozone Resistance: UV-stabilized outer layers prevent degradation in direct sunlight, while ozone resistance (tested at 200ppm for 1,000 hours) protects against urban pollution.

Water Blocking: Optional radial water blocking tapes and longitudinal water swellable strands prevent moisture ingress in flooded tunnels or direct burial applications, a critical feature for underground infrastructure.

Direct Burial: Approved for underground installation without additional protection, thanks to armor and water-resistant design. Requires burial depth of 800mm (general) or 600mm under concrete, meeting NFC33-226’s safety margins.

Conduit and Tunnels: Smooth outer jacket reduces pulling friction, allowing installation in PVC, steel, or concrete conduits. Its flexibility simplifies routing through subway tunnels or industrial plant cable trays.

Overhead Applications: When paired with messenger wires, aluminum variants support spans up to 60 meters, ideal for industrial yards or rural electrification projects.

Indoor Installations: LSZH-jacketed versions are certified for enclosed spaces like data centers or hospitals, where low smoke emission (≤50% light transmittance) is critical.

IEC 60502-2: Complies with international standards for 1kV–30kv Cables, covering conductor, insulation, and armor requirements.

EN 50525: Adheres to European norms for medium-Voltage Cables, including flame retardancy and environmental performance.

NF C15-100: Aligns with French electrical code requirements for installation in public and industrial buildings.

Industrial Facilities: Powers factories, refineries, and manufacturing plants, withstanding chemical exposure and high ambient temperatures. Its 400A capacity supports 200hp motors and industrial heating systems.

Urban Infrastructure: Feeds subway lines, streetcar networks, and district heating systems. LSZH variants ensure safety in underground tunnels, while armor protects against rodent damage.

Renewable Energy: Connects wind farms or solar parks to grid substations, with XLPE’s UV resistance thriving in open landscapes. Aluminum Conductors reduce installation costs for long-distance runs.

Commercial Hubs: Supplies power to shopping malls, airports, and data centers, where reliability and low loss are critical. Copper variants minimize voltage drop for sensitive electronics.

Infrastructure Projects: Supports bridges, tunnels, and highways, with direct burial capability simplifying installation in civil engineering works.

Low Maintenance: XLPE insulation eliminates the need for periodic reconditioning, reducing lifecycle costs by 30% compared to paper-Insulated Cables. Annual visual inspections suffice for most applications.

Energy Savings: Low dielectric losses save 5,000kWh annually per 1km cable in 24kv networks, translating to $600+ in utility savings.

Total Cost of Ownership: While initial costs are 20% higher than PVC-Insulated Cables, the 40-year lifespan and energy savings result in a 2.8× lower lifecycle cost. A 10km industrial feeder line achieves ROI in 7–9 years.

Scalability: Supports future load growth (up to 20% increase) from electric vehicle chargers or expanded industrial capacity, eliminating premature replacement.

Recyclability: Copper and 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 Emissions: LSZH variants emit no halogen gases during fire, protecting personnel and equipment in enclosed spaces. They meet NFC33-226’s smoke density requirements (≤500 obscuration units).

Reduced Footprint: Direct burial capability minimizes surface disruption, preserving green spaces in urban projects. Its compact design (outer diameter 55mm) saves space in crowded cable trays.

Fire Resistance: Resists ignition and self-extinguishes within 30 seconds, meeting NFC33-226’s flame propagation limits for industrial and public areas.