Method and device for producing triple water-blocking structure of longitudinal water-sealed power cable for ship

• Main Authors: GAO MEILING, ZHU YUANZHONG, LI ZHIXUAN, TAO HENGYING, ZHENG BIN, HAN JUNBAO, ZHU DAOJIN
• Format: Patent
• Language: Chinese; English
• Published: 12.07.2024
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CONDUCTORS; ELECTRICITY; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES

The invention discloses a method and a device for producing a triple water-blocking structure of a longitudinal water-sealed power cable for a ship, and relates to the technical field of cables, and the method comprises the following steps: S1, conductor wire drawing and twisting; s2, glue injection and insulation material double extrusion; s3, cabling, glue injection and filling; s4, extruding an inner sheath; s5, tinned copper wire braiding and armoring; s6, wrapping with a flame-retardant wrapping tape; s7, extruding an outer sheath; according to the invention, the interior of the prepared cable is provided with a triple water-blocking structure, conductor twisting is filled with a water-blocking halogen-free sealant, cable core cabling is filled with a water-blocking type halogen-free sealant, a low-smoke halogen-free water-blocking tape is wrapped outside a braided armor, and the space between the low-smoke halogen-free water-blocking tape and an outer sheath is filled with the sealant. And meanwhile, th