Cable for stranded conductor longitudinal pressure-resisting sealing oil-submerged pump and manufacturing method thereof

The invention relates to a cable for a stranded conductor longitudinal pressure-resisting sealing oil-submerged pump, which comprises a stranded conductor and an insulating layer, wherein the stranded conductor comprises a central conductor and a peripheral conductor which are stranded together; a semi-conductive rubber filler is arranged between the central conductor and the peripheral conductor; and the semi-conductive rubber filler is longitudinally extruded and wrapped on an outer surface of the central conductor. A manufacturing method of the cable for the stranded conductor longitudinal pressure-resisting sealing oil-submerged pump comprises the following steps: coating adhesives on the surface of each conductor filament and then drying at high temperature; extruding and wrapping a layer of semi-conductive rubber on the outer surface of one dried conductor filament; placing the conductor filament wrapped with the semi-conductive rubber in a central position, placing the other conductor filaments on the periphery, and stranding the conductor filaments; and extruding and wrapping the insulating layer on the exterior of the stranded conductor. The cable for the stranded conductor longitudinal pressure-resisting sealing oil-submerged pump has the advantages of simple structure, high temperature resistance, high pressure resistance and good sealing effect. The manufacturing method of the cable has the advantages of simpleness in operation, low production cost, good filling effect and high working efficiency.