Environment friendly nano composite high polymer electric cable

Abstract

The invention discloses an environment-friendly nano-composite polymer power cable. Multiple insulated conductors are intertwisted to form a cable core; a packing layer is arranged in a cable core gap; each insulated conductor consists of a conductor, a mica wrapped refractory layer and an insulating layer from inward to outward; the cable is characterized in that the insulating layer is manufactured by adopting a polyethylene montmorillonite nano-composite; and a waterproof polyester tape, a halogen-free glass fiber tape, a mica tape refractory layer, an oxygen insulation waterproof layer, a stainless steel strip armored layer and a restrictive coating successively covers outside the cable core and the packing layer. The cable has the advantages of high environmental protection performance, good ant and rat prevention performance, fire performance and radial and axial waterproof performance and the like, and high mechanical strength; and during burning, little smoke and no harmful haloid acid substance is produced.

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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