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76kV Versatile Power Cable with Copper and Aluminum Conductors Featuring XLPE Insulation and Waterproofing

66~500kV XLPE Insulated Power Cables
Standard:IEC60840:2011<Power cables with extruded insulation and their accessories for rated voltages above 30kV(Um=36kV)up to 150kV(Um=170kV)>,and IEC62067:2011 <Power cables with extruded insulation and their accessories for rated voltages above 150kV (Um=170kV)up to 500kV(Um=550kV)>.
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Type

Name

CU/XLPE/CAS/PVC

Copper Conductor XLPE Insulated Corrugated Aluminum Sheath PVC Sheathed Power Cable

CU/XLPE/CAS/LWR/PVC

Copper Conductor XLPE Insulated Corrugated Aluminum Sheath PVC Sheathed Longitudinal Water Resistant Power Cable

CU/XLPE/CAS/PE

Copper Conductor XLPE Insulated Corrugated Aluminum Sheath PE Sheathed Power Cable

CU/XLPE/CAS/LWR/PE

Copper Conductor XLPE Insulated Corrugated Aluminum Sheath PE Sheathed Longitudinal Water Resistant Power Cable

AL/XLPE/CAS/PVC

Aluminum Conductor XLPE Insulated Corrugated Aluminum Sheath PVC Sheathed Power Cable

AL/XLPE/CAS/LWR/PVC

Aluminum Conductor XLPE Insulated Corrugated Aluminum Sheath PVC Sheathed Longitudinal Water Resistant Power Cable

AL/XLPE/CAS/PE

Aluminum Conductor XLPE Insulated Corrugated Aluminum Sheath PE Sheathed Power Cable

AL/XLPE/CAS/LWR/PE

Aluminum Conductor XLPE Insulated Corrugated Aluminum Sheath PE Sheathed Longitudinal Water Resistant Power Cable


Product Description


The 76kV Versatile Power Cable is a high-performance solution designed for reliable power transmission in diverse environments, offering a choice of copper or aluminum conductors with advanced XLPE insulation and robust waterproofing. Engineered to meet IEC 60502 and IEEE 1127 standards, this cable combines excellent electrical conductivity with mechanical durability, making it suitable for both overhead and underground applications. The conductor is surrounded by a cross-linked polyethylene (XLPE) insulation layer, known for its high dielectric strength, thermal stability, and resistance to electrical treeing.

For waterproofing, the cable features a moisture-resistant inner sheath (PE or PVC) and an optional aluminum or steel wire armor layer, providing protection against water ingress and mechanical damage. The outer sheath is made from UV-stabilized polyethylene or halogen-free compounds, ensuring resistance to sunlight, chemicals, and flame. Available in both solid (copper) and stranded (aluminum) conductor configurations, the cable balances conductivity, weight, and cost-effectiveness for versatile applications.


Features


Dual Conductor Options: Copper conductors offer superior conductivity (ideal for low-loss urban grids), while aluminum conductors provide lightweight, cost-effective solutions for long-distance transmission.

XLPE Insulation Advantage: XLPE maintains excellent insulation properties up to 90°C continuous operation, with a lifespan of 40+ years and resistance to thermal aging.

Advanced Waterproofing: A multi-layer design includes a water-blocking tape or gel between insulation and sheath, preventing moisture migration even in submerged or high-humidity environments.

Mechanical Protection: Optional armor layers (steel wire for heavy-duty, aluminum for lightweight) enhance resistance to rodents, soil pressure, and accidental digging damage.

Environmental Compliance: Halogen-free sheaths are available for low-smoke, zero-halogen applications in tunnels, metro systems, and public buildings.


Application


Urban Power Grids: Copper-conductor cables reduce power loss in dense urban areas, while aluminum variants suit suburban and rural long-distance lines.

Industrial Installations: Powers heavy machinery in factories, mines, and refineries, with armor options protecting against harsh industrial environments.

Underground Systems: Waterproof designs enable direct burial or duct installation in wetlands, river crossings, and high-water table regions.

Renewable Energy Farms: Connects wind turbines and solar arrays to grid substations, enduring vibrations, UV exposure, and temperature fluctuations.

Marine Applications: Specialized submarine versions with steel armor and watertight seals transmit power across coastal grids and offshore platforms.


FAQ


Q: Which conductor type is better for high-temperature environments?

A: Both copper and aluminum conductors with XLPE insulation operate safely at 90°C, but copper has better thermal conductivity for higher current densities.

Q: Can the cable be used for overhead applications without armor?

A: Yes, unarmored versions are lightweight and suitable for aerial bundling or support by messenger wires in overhead distribution.

Q: What is the minimum bending radius for installation?

A: The bending radius is typically 20x cable diameter for unarmored and 25x for armored cables, ensuring no damage to insulation during routing.

Q: How does the waterproofing layer work?

A: A semi-conductive water-blocking tape swells when exposed to moisture, forming a physical barrier, while the outer sheath prevents external water ingress.

Q: Are there fire-resistant variants available?

A: Yes, fire-retardant XLPE and halogen-free sheaths meet IEC 60332-3 standards for flame propagation, suitable for tunnels and critical infrastructure.


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