Conductor:copper,copper single wire tinned or untinned,stranded gap is filled with water-proof material

　　Conductor screen:semi-conductive material extruded layer

　　Insulation:XLPE or EPR

　　Insulated screen:semi-conductive material extruded cladding

　　Water-proof layer:semi-conductive water-proof tape

　　Metal screen:copper tape

　　Water-proof layer:semi-conductive water-proof tape

　　Water-proof jacket:composite water-proof layer(consist of aluminum or copper plastic tape and PE layer)

　　Lapping inner layer:rubberized cloth tape and bitumen

　　Armoured layer:seawater resistant alloy coated steel wire and bitumen

　　Outer sheath:impregnated fiber rope