290/500KV HV POWER CABLE

Application

Our 290/500kV HV power cables represent advanced engineering for demanding power transmission applications. These cables fall into the category of EHV XLPE insulated power cables and serve as a core product for 500kV EHV power transmission networks, effectively replacing overhead lines of the same voltage class for underground/tunnel laying in urban power grids, industrial parks and cross-regional transmission projects. Featuring large transmission capacity, excellent insulation, strong anti-environmental interference and small floor space, they are widely used in overhead-to-underground transformation of main power grids, cross-sea/river transmission and power grid construction in urban core areas.

Applicable Standards

• IEC 60840
• IEC 62067

Construction

• Conductor: Circular Stranded Compacted Conductor (≤800mm²), Milliken Conductor (>800mm²)
• Conductor Screen: Super Smooth Semi-Conductive Compound
• Insulation: Super Clean Cross Linked Polyethylene (XLPE)
• Insulation Screen: Super Smooth Semi-Conductive Compound
• Binder Tape: Semi-Conductive Tape
• Metal Sheath: Corrugated Aluminum Sheath/Lead Sheath/Aluminum Laminated Tape
• Anti-Corrosive Layer: Cable Asphalt
• Outer Sheath: Polyvinyl Chloride (PVC) or Polyethylene (PE)
• Conductive Layer: Graphite
• Optional: Copper Wire Screen, Metal Wire Screen
• Cable Type: YJLW02:CU/XLPE/CAS/PVC