Class-A flame-retardant waterproof termite-proof rat-proof medium-voltage special cable for rail transit

Abstract

The invention discloses a class-A flame-retardant waterproof termite-proof rat-proof medium-voltage special cable for rail transit, and relates to the technical field of cables. The cable comprises acopper core, wherein a plurality of outer conductors are fixed around the outer side of the copper core; a plurality of inner conductors are fixed around the outer side of the copper core; the outer sides of the outer conductors and the inner conductors are sleeved with a fireproof layer; the outer side of the fireproof layer is sleeved with a composite belt; the outer side of the composite belt is sleeved with an anti-termite and anti-rat layer; the outer side of the anti-termite and anti-rat layer is sleeved with a protective layer; the anti-termite and anti-rat layer is composed of a plurality of protective bags; the outer surface of the protective layer is provided with a plurality of adjusting grooves; the outer sides of the adjusting grooves are sleeved with an adjusting pipe; the outer ring of the adjusting pipe is fixed with a connecting plate; and a mounting plate is fixed to one side of the connecting plate. Under the action of the protection bags which can be filled with rodenticide and the like, the skin of the protection bags is broken if insects and ants gnaw the protection bags when the cable is in use, and the insects and ants are expelled or killed by poison. The cable can be effectively protected through the arrangement, and the cable is prevented from being damaged due to gnawing of the insects and ants.

Description

technical field [0001] The invention belongs to the technical field of cables, in particular to a Class A flame-retardant, waterproof, ant-proof and rodent-proof medium-voltage special cable for rail transit. Background technique [0002] The cable is usually a rope-like cable twisted by several or several groups of wires. Each group of wires is insulated from each other, and is often twisted around a center, and the entire outside is covered with a highly insulating covering. The cable has the characteristics of internal electrification and external insulation. The manufacture of wire and cable is completely different from the production of most electromechanical products. Mechanical and electrical products are usually assembled into components, and multiple components are assembled into a single product, and the product is measured by the number of units or pieces. Wire and cable are based on length as the basic unit of measurement. All wires and cables start from condu...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a class A flame-retardant, waterproof, ant-proof, rodent-proof and medium-voltage special cable for rail transit. Through the function of the protective bag, rat poison can be filled in the protective bag, and nymphs and ants will eat the protective bag during use. , the skin of the protective bag is broken, and the insects and ants are driven or poisoned to death. This setting can effectively protect the cable and prevent the cable from being damaged due to the gnawing of insects and ants. It solves the problem that most of the track cables are located in relatively dark and humid places , so it is very easy to be bitten by insects, ants and mice, which will cause the cable to be damaged, and even affect the normal operation of the traffic, bringing huge potential safety hazards

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