500KV cross-linked polyethylene insulation submarine power cable

Abstract

The invention discloses a 500kV cross-linked polyethylene insulated submarine power cable, which comprises a water-blocking conductor, a conductor shielding layer, an insulating layer, an insulating shielding layer, a water-blocking tape wrapping layer, a metal sheath, a polyethylene sheath, and armor layer and outer sheath; a conductor shielding layer is arranged outside the water-blocking conductor, an insulating layer is arranged outside the conductor shielding layer, an insulating shielding layer is arranged outside the insulating layer, and a water-blocking tape wrapping layer is arranged outside the insulating shielding layer A metal sheath is arranged outside the wrapping layer of the water blocking tape, a polyethylene sheath is arranged outside the metal sheath, an armored layer is arranged outside the polyethylene sheath, and an outer sheath is arranged outside the armored layer. The power cable of the present invention has the advantages of large transmission carrying capacity, low dielectric loss, low production cost, and convenient operation and maintenance. It leads the technological innovation of the world's cable industry, complies with the national resource development strategy, and meets the needs of national energy construction safety. have a profound impact on my country's economic development.

Description

technical field [0001] The invention relates to a submarine cable, in particular to a 500kV voltage level XLPE insulated submarine power cable, and belongs to the technical field of cable manufacturing. Background technique [0002] 500kV XLPE insulated cables were first used in pumped storage power stations in 1997, and then 500kV XLPE insulated power cables were widely used in urban power grids and large industrial and mining enterprises. , with the improvement of the manufacturing process and the actual engineering operation experience of 500kV XLPE insulated power cables, the reliability of ultra-high voltage extruded XLPE insulated cables has gradually been recognized, which is the development of 500kV XLPE insulated submarine power cables Foundation. [0003] With the rapid development of my country's ocean development and offshore island industry and tourism, the demand for power is increasing. The original 220kV and below submarine cable lines can no longer meet the...

AI Technical Summary

Problems solved by technology

At present, oil-filled submarine cables are mostly used for 500kV submarine cables, but oil-filled submarine cables have disadvantages such as inconvenient installation, heavy maintenance workload, and large dielectric loss.

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