Built-in end-to-end electrical component structure for the shielding layer of offshore oil rig cables

摘要

The present invention provides a built-in end-to-end electrical component structure for the shield layer of offshore oil rig cables and relates to the field of petroleum cables. The invention comprises a copper conductor, the outer surface of the copper conductor being surrounded by an insulating layer, the outer surface of the insulating layer being surrounded by a shielding layer, the outer surface of the shielding layer being surrounded by a metal jacket, the inner wall of the metal jacket having at least four Recess portions is provided, wherein the insulating layer is provided with protruding portions extending into the interior of a respective recess portion. A force-absorbing component is arranged at the closed end of a respective recess section, a support component being arranged at the tip of a respective projection section, with one end of a respective support component being in contact with the corresponding force-absorbing component. The invention solves the problem in the prior art that the fact that the cables in the complex environment of the deep sea are often exposed to external forces acting in different directions and with different strengths creates gaps between the insulating layer and the shielding layer over time , by which the shielding effect of the cables is impaired, which is why existing deep-sea cables can often only be used for less than 25 years and then have to be repaired and are expensive.