Medium-voltage rubber jacketed flexible cable for offshore wind power generation

Abstract

The invention discloses a medium-voltage rubber jacketed flexible cable for offshore wind power generation, and belongs to the field of electric wires and cables. The medium-voltage rubber jacketed flexible cable comprises a cable core, a water-blocking wrapping tape and an outer sheath; the water-blocking wrapping tape wraps the outer side of the cable core; the outer sheath wraps the outer sideof the water-blocking wrapping tape in an extrusion mode; the cable core is formed by twisting three power wire cores and a water-blocking filling strip; the center in each power wire core is filled with a conductor; the outer side of each conductor is wrapped with a conductor shielding layer; an insulating sleeve wraps the outer side wall of each conductor shielding layer in an extrusion mode; aninsulating shielding layer wraps the outer side of each insulating sleeve; and a metal shielding layer wraps the outer side of each insulating shielding layer. The scandium-aluminum alloy conductorsare adopted, so that the defect that pure copper is used as electric wire and cable conductors is effectively overcome, the cost of the cable is reduced, the structural strength, the elongation, the tear resistance and the like of the cable core are effectively improved, and the defect that a traditional cable is poor in bending performance is overcome; and the cable is effectively suitable for medium-voltage cables and is convenient to popularize for a long time.

Description

technical field [0001] The invention relates to the field of wires and cables, in particular to a medium-voltage rubber-sheathed flexible cable for offshore wind power generation. Background technique [0002] With the continuous development of my country's industry and the rapid development of wind power generation, the use of cables is also increasing. However, there are no cold-resistant, corrosion-resistant, flame-retardant, and water-resistant cables suitable for offshore wind power generation. The main raw materials of existing cables are insulation, sheath and conductors. The main component of conductors in the manufacture of cables is copper, which accounts for about 70% of the total copper used in the production industry. However, my country's copper resources are very short. With the depletion of China's copper mine resources, 80% of China's copper mines need to be imported, which is highly dependent. With the rising price of copper, replacing copper with aluminum...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a medium-voltage rubber-sheathed flexible cable for offshore wind power generation, which can effectively solve the shortcomings of poor bending performance of traditional cables, and can effectively solve many shortcomings of pure copper used as wire and cable conductors, reducing the The cost of the cable, while effectively making the cable have the advantages of creep resistance, high flexibility, strong ductility, low rebound, stable connection, cold resistance, corrosion resistance, flame retardancy, and good water resistance, effectively increasing the applicability and service life of the cable

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