Offshore buoyant cable

Abstract

The invention discloses an offshore buoyant cable which mainly comprises a buoyant connecting rope, a buoyant element, a seal layer, a group of main conductors, an inner sheath, a group of auxiliary conductors and a cable protection layer, wherein the buoyant element is coated on the buoyant connecting rope; the seal layer is coated on the outer side of the buoyant element; the group of main conductors are twisted on the outer side of the seal layer; the inner sheath is wrapped on the outer sides of the main conductors; the group of auxiliary conductors are wound on the inner sheath; and the cable protection layer is extruded and wrapped on the outer sides of the auxiliary conductors. According to the invention, the main conductors adopt the structure type that the numbers of two layers are equal, and the twisting directions of the twisting conductors are opposite; and the auxiliary conductors are composed of a plurality of conductors and insulation layers coated outside the conductors. The offshore buoyant cable provided by the invention is an offshore buoyant cable conductor which can meet the relevant technical requirements of transmission capacity and power supplying mode and the like simultaneously, and can prevent the cable from rotating in the manufacturing and using processes, and has both loading and floating capacities at the same time.

Description

[0001] technical field [0002] The invention belongs to the field of power cables, and in particular relates to a floating cable on the sea. Background technique [0003] At present, the design of the conductor is mainly carried out according to the relevant technical requirements such as the transmission capacity of the cable and the power supply mode. The conductors of offshore floating cables must meet the following requirements: first, high-current, low-voltage power supply; second, to ensure the overall power supply requirements, the voltage drop should be small; third, the use of multiple electrodes; and the common structural form of offshore floating cable conductors cannot meet the requirements at the same time. The above three requirements, therefore, need a special offshore floating cable conductor structure to make up for the deficiencies in the current structure of offshore floating cables. [0004] Regarding the use of stranded conductors, since the main cond...

AI Technical Summary

Problems solved by technology

[0006] To sum up: at present, there are deficiencies in the conductors of floating cables at sea: first, they cannot meet the relevant technical requirements such as transmission capacity and power supply mode at the same time; second, the cables rotate during manufacturing and use;

Images