Fireproof heat insulation type tensile medium-voltage cable for ultrahigh vertical installation

• Main Author: LYU GUOWU
• Format: Patent
• Language: Chinese; English
• Published: 09.07.2019
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CONDUCTORS; ELECTRICITY; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES

The utility model discloses a fireproof heat insulation type tensile medium-voltage cable for ultrahigh vertical installation. Cable comprising a cable core, the cable core is formed by twisting a plurality of insulating wire cores and tensile bearing wire cores, wherein the number of the tensile bearing wire cores is the same as that of the insulating wire cores. The gap of the cable core is filled with a PP filling rope whose surface is coated with a heat insulation coating. the cable core is wrapped with a PP belt; a first PVC inner protective layer is extruded outside the PP belt; the outer surface of the first PVC inner protective layer is coated with a heat insulation coating layer; a second PVC inner protective layer is extruded outside the heat insulation coating layer, an insulation isolation belt is wrapped outside the second PVC inner protective layer, then an aluminum alloy interlocking armor layer is wrapped outside the second PVC inner protective layer, and a low-smoke halogen-free outer sheath