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

A computer cable, double-layer co-extrusion technology, applied in the direction of insulated cables, insulated conductors, organic insulators, etc., can solve problems such as poor heat dissipation, cable heat resistance, weak rigidity and tensile strength, and no resistance to lateral pressure

Inactive Publication Date: 2020-10-20
TIANCHANG HUILING ELECTRIC APPLIANCE METER FACTORY
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  • Abstract
  • Description
  • Claims
  • Application Information

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 he

Method used

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

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Embodiment 1

[0026] see Figure 1-2 , a high-performance double-layer co-extruded insulation flame-retardant fire-resistant computer cable, including a conductor 1, insulation 2, tape 4, inner sheath 5, armor 6 and outer sheath 7, the insulation 2 is arranged on the outside of the conductor 1, And insulation 2 is made of polypropylene material, the heat resistance of polypropylene is higher than that of polyethylene, under normal circumstances, the melting temperature of polypropylene is about 40%-50% higher than that of polyethylene, about 160-170°C, In addition, from the perspective of rigidity and tensile strength, polypropylene has low density, better mechanical properties than polyethylene, and outstanding rigidity. Multiple conductors 1 are embedded in the tape 4, and the conductors in the tape 4 1 is embedded with a filling 3, the filling 3 is a mineral insulating mica tape, the inner sheath 5 is set on the outside of the tape 4, the inner sheath 5 is made of radiation cross-linked ...

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): H01B7/42H01B7/29H01B7/295H01B7/18H01B7/22H01B3/44
CPCH01B3/44H01B7/1875H01B7/22H01B7/29H01B7/295H01B7/421H01B7/426
Inventor 朱从林陆秀国李正宝杨金花陆丛林
Owner TIANCHANG HUILING ELECTRIC APPLIANCE METER FACTORY
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