Production method of round conductor low-voltage power cable with high roundness

Abstract

The present invention discloses a production method of a round conductor low-voltage power cable with a high roundness. The production method of the round conductor low-voltage power cable with the high roundness is characterized in that: 4 strands of round-shaped wires are selected for core portions as conductors, the conductors are subjected to high-roundness insulation, filling strips are customized, the stands of conductors form an integrated round body through the heterogenic filling strips, a high-intensity elastic belting is arranged at the external portion of the integrated round body,an inner sheath is arranged at the external portion of the high-intensity elastic belting, an armor layer is arranged at the external portion of the inner sheath, and an outer sheath is arranged at the external portion of the armor layer; tension force of each pay-off rack is regulated prior to cabling, tension force balance between cores of strands of cables is ensured, instant tension forces ofthe cores of strands of cables are randomly monitored and regulated; the wrapping angle of the high-intensity elastic belting is less than 45 degrees; and the inner sheath and the outer sheath are subjected to extrusion molding through an extrusion-type head. The production method of the round conductor low-voltage power cable with the high spherical degree improves the production efficiency andhas good physical and mechanical properties, are flat in surface, high in spherical degree and convenient to construct, save raw materials and simple and clear in production process.

Description

technical field [0001] The invention relates to the technical field of cable manufacturing, in particular to a production method of a high-roundness circular conductor low-voltage power cable. Background technique [0002] The high-roundness power cables in the prior art have various structural forms, such as the patent announcement number CN205050606U, a high-roundness cable, including a rubber outer layer, a metal armor layer, an outer water-absorbent resin layer, flax Layer, metal wire layer, center round layer, inner water-absorbent resin layer, steel core, wherein the outer surface of the steel core is covered with an inner water-absorbent resin layer, the outer surface of the inner water-absorbent resin layer is covered with a center round layer, and the center round layer The outer surface is covered with a metal wire layer, the outer surface of the metal wire layer is covered with a flax layer, the outer surface of the flax layer is covered with an outer water-absorb...

AI Technical Summary

Problems solved by technology

At present, the conventional low-voltage power cables produced in China often have poor cable roundness during the production process. Due to the poor roundness of the cable core, there will be no standard products when selecting connectors; due to the cable roundness The finished cable will bring construction difficulties to customers and increase construction costs; the appearance evaluation is average, the product competitiveness is not enough, and there may even be unqualified products. Products with high roundness are the products of most manufacturers. Quality pursuit goal

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