Pressure-resistant and anti-static coal mine cable

Abstract

The invention relates to the technical field of coal mine cables, and particularly relates to a pressure-resistant and anti-static coal mine cable. The cable is a flat elliptical cable and comprises acable core arrangement layer, a halogen-free low-smoke inner sheath, a metal shielding layer, a first insulating layer, a waterproof layer and an anti-static outer sheath, wherein the cable core arrangement layer is internally provided with a heat-conducting silicone rubber framework, at least one cable core is arranged in the cable core arrangement layer, the cable core arrangement layer is internally filled with resin, the anti-static outer sheath includes a low-smoke halogen-free polyolefin layer and an anti-static PET film, and the surface of the anti-static PET film has uneven microstructures. The cable of the invention has a good heat dissipation capability, and the surface of the anti-static PET film on the outermost layer is provided with the uneven microstructures, thereby havinga large specific surface area, being capable of exposing more modified graphene oxide to the surface, and having an excellent anti-static effect. In addition, the flat elliptical structure can disperse pressure, built-in aramid fiber reinforcement cores can enhance the strength of the cable, and the cable has high pressure resistance.

Description

technical field [0001] The invention relates to the technical field of cables for coal mines, in particular to a pressure-resistant and antistatic coal mine cable. Background technique [0002] A cable is a wire product used to transmit electric (magnetic) energy information and realize electromagnetic energy conversion. In a narrow sense, a cable is made of one or more mutually insulated conductors and an outer insulating protective layer, and transmits electricity or information from one place to another. A wire that is transmitted to another place; a generalized cable is usually a rope-like cable twisted by several or groups of wires (at least two in each group), each group of wires is insulated from each other and surrounds a Twisted in the center, the entire exterior is covered with a highly insulating cover. The cable has the characteristics of internal electrification and external insulation. There are many types of cables, and the scope of application is also very ...

AI Technical Summary

Problems solved by technology

Existing cables reduce static electricity generation by setting the outermost protective layer as semi-conductive, but in this way, most of the conductive materials are distributed inside the outer sheath, while static electricity is generated on the surface of the outer sheath of the cable, so the anti-static The electrostatic effect is not particularly ideal, and the cable's ability to withstand pressure is also weak

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