High-performance double-layer co-extrusion insulating flame-retardant fire-resistant computer cable

Abstract

The invention relates to the technical field of power cables. The invention further discloses a high-performance double-layer co-extrusion insulating flame-retardant fire-resistant computer cable. Thecable comprises conductors, insulators, a wrapping tape, an inner sheath, an armor and an outer sheath. The insulators are arranged on the outer sides of the conductors and are made of polypropylenematerials, the plurality of conductors are embedded in the wrapping tape, fillers are embedded among the conductors in the wrapping tape, the inner sheath is arranged on the outer side of the wrappingtape, and the armor is arranged on the outer side of the inner sheath. According to the high-performance double-layer co-extrusion insulating flame-retardant fire-resistant computer cable, the insulators at the outer sides of the conductors are made of a polypropylene material; therefore, the heat resistance, rigidity and tensile strength of the cable are improved; and the armor is a linkage armor made of an aluminum alloy belt, and compared with a common double-steel-belt wrapping mode adopted by a common cable, the aluminum alloy belt and a non-magnetic material adopted by the linkage armordo not generate eddy currents, and the heat dissipation performance, the side pressure resistant performance and the anti-collision performance are good, , the inside is smooth and the insulator is not cut, and the safety coefficient is high.

Description

technical field [0001] The invention relates to the technical field of power cables, in particular to a high-performance double-layer co-extruded insulating flame-retardant and fire-resistant computer cable. Background technique [0002] Power cables are cables used to transmit and distribute electric energy. Power cables are often used in urban underground power grids, outgoing lines of power stations, internal power supply of industrial and mining enterprises, and underwater transmission lines across rivers and seas. [0003] In the prior art, the outer insulation of the conductor in the general cable is made of polyethylene material, which makes the heat resistance, rigidity and tensile strength of the cable weak. In addition, the ordinary double steel tape wrapping used by the general cable may generate eddy currents. , and poor heat dissipation, no resistance to lateral pressure, poor anti-collision performance, low safety factor, and poor heat dissipation and flame ret...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the outer insulation of the conductor in the general cable is made of polyethylene material, which makes the heat resistance, rigidity and tensile strength of the cable weak. In addition, the ordinary double steel tape wrapping used by the general cable may generate eddy currents. , and poor heat dissipation, no resistance to lateral pressure, poor anti-collision performance, low safety factor, and poor heat dissipation and flame retardancy of the outer sheath. Therefore, we propose a high-performance double-layer co-extrusion insulation flame-retardant Fire-resistant computer cables solve the above problems

Images