Power cable for underwater shovel arm of dredger and manufacturing method thereof

Abstract

The invention relates to a power cable for an underwater shovel arm of a dredger and a manufacturing method thereof. A cable core comprises three main wire cores and three ground wire cores, which are mutually stranded, wherein the main wire cores and the ground wire cores are evenly arranged along the same circumference in a and staggered manner; the center of the cable core is provided with a rubber saddle-shaped fixed mount, and the center of the rubber saddle-shaped fixed mount is provided with tensile cores; the center of each main wire core is a main wire core conductor, the periphery of the main wire core conductor is wrapped by a main wire core halogen free belt in a winding manner, the periphery of the main wire core halogen free belt is extruded and wrapped by a main wire core insulating layer, and the periphery of the main wire core insulating layer is wrapped by a main wire core semiconductor electrically-scraping rubber belt in a winding manner; the center of each ground wire core is a ground wire core conductor, the periphery of the ground wire core conductor is extruded and wrapped by a ground wire core insulating layer, and the periphery of the ground wire core insulating layer is wrapped by a ground wire core semiconductor electrically-scraping rubber belt in a winding manner; and the periphery of the cable core is extruded and wrapped by two layers of chlorosulfonated polyethylene rubber sheaths, and the circumference between the two layers of rubber sheaths is longitudinally wrapped by soft fiber paper. The power cable has the advantages of stable structure, reliable insulation, high tensile strength and aging resistance, and is easy to bend.

Description

technical field [0001] The invention relates to a power cable, in particular to a power cable for an underwater shovel arm of a dredger; the invention also relates to a manufacturing method of the power cable for an underwater shovel arm of a dredger. Background technique [0002] The power cable for the underwater shovel arm of the dredger works underwater, so the insulation performance of the cable is high, and the cable needs to be bent and elongated frequently with the movement of the shovel arm, so the cable structure is required to be stable and have good mechanical properties , high tensile strength, easy to bend with the shovel arm, and the cable core cannot undergo large deformation after bending, etc. Ordinary power cables cannot meet the above requirements. Contents of the invention [0003] The primary purpose of the present invention is to provide a power cable for the underwater shovel arm of a dredger, which has a stable structure, reliable insulation, high ...

AI Technical Summary

Problems solved by technology

[0002] The power cable for the underwater shovel arm of the dredger works underwater, so the insulation performance of the cable is high, and the cable needs to be bent and elongated frequently with the movement of the shovel arm, so the cable structure is required to be stable and have good mechanical properties , high tensile strength, easy to bend with the shovel arm, and the cable core cannot undergo large deformation after bending, etc. Ordinary power cables cannot meet the above requirements

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