Environment-friendly nanocomposite high polymer power cable

Abstract

The invention discloses an environment-friendly nanocomposite high polymer power cable, in which a plurality of insulated wire cores are stranded to form a cable core, a filling layer is arranged in the gap between the cable cores, and the insulated wire cores are wound by conductors and mica from inside to outside It is composed of a refractory layer and an insulating layer. It is characterized in that the insulating layer is made of polyethylene montmorillonite nanocomposite material, and the cable core and the filling layer are sequentially covered with water-blocking polyester tape, halogen-free glass Fiber tape, mica tape refractory layer, oxygen barrier waterproof layer, stainless steel tape armor layer and sheath layer. The cable of the present invention has high environmental protection performance, produces less smoke and no harmful halogen acid substances during combustion, has excellent ant-proof performance, fire resistance performance, and radial and axial water resistance performance, etc., and the mechanical strength of the cable is very high. high.

Description

Technical field: [0001] The invention relates to a power cable, in particular to an environment-friendly nanocomposite high polymer power cable. Background technique: [0002] At present, the cables sold on the market include low-smoke and halogen-free power cables, ant-proof or rodent-proof power cables, waterproof power cables, flame-retardant power cables, fire-resistant power cables, flame-retardant and fire-resistant power cables, etc. The main safety performance of these cables is monotonous. It cannot meet the needs of two or more safety performances; light rail subways, nuclear industry, airports, stations, offshore platforms, hospitals, office buildings and other public places with relatively concentrated personnel, as well as important areas of industrial and mining enterprises require cables to have high environmental performance and high strength. At the same time, these areas are also places where termites or rats are rampant, and the cables are required to have...

AI Technical Summary

Problems solved by technology

[0002] At present, the cables sold on the market include low-smoke and halogen-free power cables, ant-proof or rodent-proof power cables, waterproof power cables, flame-retardant power cables, fire-resistant power cables, flame-retardant and fire-resistant power cables, etc. The main safety performance of these cables is monotonous. It cannot meet the needs of two or more safety performances; light rail subways, nuclear industry, airports, stations, offshore platforms, hospitals, office buildings and other public places with relatively concentrated personnel, as well as important areas of industrial and mining enterprises require cables to have high environmental performance and high strength. At the same time, these areas are also places where termites or rats are rampant, and the cables are required to have anti-ant and rodent performance. In places where people are concentrated, the cables must also be able to run for a period of time in the event of a fire to ensure that people have enough time to escape. The cable channels in the above places There is more or less water or water vapor in the interior, and the cable is required to have good water resistance and high strength performance. Therefore, the cables with single safety performance used in the above places cannot guarantee safe operation.

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