Section size: 240mm to 2,500mm Voltage rating: 48/66kV, 64/110kV, 127/220kV Cable laying circumstance: directly buried underground, embedded in tunnels or conduit Structure: 1 Conductor 2 Semi-conductive tape 3 Extruded inner semi-conductive layer jacket 4 Extruded insulation layer 5 Extruded outer semi-conductive layer 6 Semi-conductive tape 7 Copper wires woven fabric shield layer 8 Corrugated aluminum 9 PE sheath (or PVC sheath) 10 Graphite power