66-500 kV XLPE Power Cable

66-500 kV Xlpe Power Cable is a key power transmission cable used in high-voltage, extra-high-voltage, and ultra-high-voltage transmission projects. Using cross-linked polyethylene as the insulation material, it combines a conductor, shield, metal sheath, and outer jacket, offering excellent electrical and mechanical properties. Voltage levels: 66kV, 110kV, 220kV, 330kV, 500kV
Conductor material: Typically copper or aluminum, with a smooth surface and low DC resistance
Insulation material: Cross-linked polyethylene (XLPE), with excellent dielectric properties and heat resistance
Shielding structure: Conductive shield (conductor shield, insulation shield) + metallic shield
Sheath structure: Commonly used are corrugated aluminum sheath, copper sheath, or steel armored outer sheath, resistant to mechanical damage and corrosion
Low dielectric loss, high insulation resistance
Uniform electric field distribution, high breakdown voltage
Stable electrical performance during operation
Strong thermal performance
Application scenarios: Power system backbone: Urban power grids, industrial parks, and UHV projects
Long-distance power transmission: High-current, high-capacity transmission lines
Critical facilities: Nuclear power plants, substations, rail transit, data centers, etc.
Urban underground cable projects: A safer alternative to traditional oil-impregnated paper-insulated cables