A double-layer reverse high-strength aluminum alloy armored submarine cable

Abstract

The invention discloses a double-layer reverse high-strength aluminum alloy armored ocean cable. The double-layer reverse high-strength aluminum alloy armored ocean cable comprises a cable core. A first anticorrosive coating is arranged on the outer side of the cable core, a first armoring layer is arranged on the outer side of the first anticorrosive coating and comprises a plurality of first molded single wires, and a second anticorrosive coating is arranged on the outer surface of each first molded single wire. A third anticorrosive coating is arranged on the outer side of the first armoring layer, a second armoring layer is arranged on the outer side of the third anticorrosive coating and comprises a plurality of second molded singles lines, and a fourth anticorrosive coating is arranged on the outer surface of each second molded single wire. The first molded single wires and the second molded single wires are stranded reversely. The double-layer reverse high-strength aluminum alloy armored ocean cable has the advantages that steel wires are prevented from being loosened effectively, and the service life of the ocean cable is prolonged; the anticorrosion and waterproofing effect is improved effectively; the overall strength of the armoring layers is improved effectively.

Description

Technical field [0001] The invention relates to a double-layer reverse high-strength aluminum alloy armored submarine cable. Background technique [0002] Since its first research and development in 1850, submarine cables have become the only way to transmit electricity between land and sea, and have been widely recognized and applied worldwide. The successful laying of submarine cables has a history of 158 years, and its design And the laying method has been greatly improved. With the rapid development of flexible DC transmission, the application of flexible DC transmission to submarine power transmission has good controllability, easy control of active and reactive power, low loss, and no need for reactive power compensation. Advantages, it can supply power to isolated passive systems, especially suitable for long-distance, large-capacity power transmission projects. [0003] In this kind of cable design, it will be carried out on the basis of terrestrial high-voltage cables to ...

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Problems solved by technology

[0004] However, the single-layer twisting of zinc steel wires can only buffer the torsion in one direction. When the cable is subjected to reverse torsion, the unidirectional steel wires will even scatter. The wires will be corroded, and the corrosion will spread axially. In addition, the brittle asphalt material will crack and fall off. The water-blocking structure outside the insulation can no longer continue to play a role in the design.

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