Crosslinked polyethylene insulated low-smoke halogen-free flame-retardant computer cable

Abstract

The invention discloses a crosslinked polyethylene insulated low-smoke halogen-free flame-retardant computer cable, which comprises a waterproof protective sleeve, a total shielding layer, fillers, isolation layers, split-phase shielding layers, polyester film belts, insulating layers, cable cores, a clamping block and a second magnetic ring, and is characterized in that the total shielding layeris arranged in the waterproof protective sleeve, two fillers are arranged in the total shielding layer, two isolation layers are arranged in the total shielding layer, the split-phase shielding layersare arranged in the two isolation layers, the polyester film belts are arranged on the sides, which are away from the isolation layers, of the two split-phase shielding layers, and two insulating layers are arranged in each of the two polyester film belts, and cable cores are arranged in the four insulating layers. The low-halogen low-smoke flame-retardant polyvinyl chloride has the characteristics of flame retardancy, low smoke amount during combustion and small HCl gas amount. the cable cores adopt concentric layer stranding, transmission parameters are stable, electromagnetic coupling canbe reduced, and the anti-interference performance is improved.

Description

technical field [0001] The invention belongs to the field of computer cables, in particular to a cross-linked polyethylene insulated low-smoke halogen-free flame-retardant computer cable. Background technique [0002] Computer cables require high rated power and good anti-interference performance. The traditional cable ground core insulation is made of low-density polyethylene material with anti-oxidation properties. At present, computer cables are widely used in power generation, metallurgy, petroleum, chemical industry and textile industries. Computer systems or automation devices for detection and control and general industrial computers, so there are high requirements for its transmission signal capability and anti-interference performance in order to reliably transmit weak analog signals; [0003] Existing computer cables still have certain defects in use. When installing computer cables, due to the relatively fixed length of the cables, the cables cannot be spliced, so...

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Problems solved by technology

[0003] Existing computer cables still have certain defects in use. When installing computer cables, the length of the cables is relatively fixed, and the cables cannot be spliced, so that the length of the cables cannot be conveniently controlled. When a certain section of the cable breaks , it is not convenient to quickly disassemble and replace it, and the wires inside the cable affect each other due to electrical properties, which does not play a good role in insulation and isolation, thereby reducing the efficiency of information transmission. Therefore, it is necessary to design a cross-linked polymer Vinyl insulated low smoke halogen free flame retardant computer cable

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