A cold-resistant aluminum alloy cable

Abstract

The invention belongs to the field of cables, in particular a cold-resistant aluminum alloy cable. The cold-resistant aluminum alloy cable comprises an insulating layer-coated aluminum alloy conductor main body, a shielding layer coated on the outside of the aluminum alloy conductor main body and a filling layer filled in the gap between the aluminum alloy conductor main body and the shielding layer; the outside of the shielding layer is provided with an insulating outer layer, a shape of the cross section of the insulating outer layer rotating around a vertical shaft is drop-shaped, and a spiral steel wire rotating around the outside of the aluminum alloy conductor main body is further arranged in the shielding layer, the outside of the spiral steel wire is provided with an expansion connecting conductor parallel to the aluminum alloy conductor main body, and a section of expansion connecting conductor is arranged at regular screw pitches. The aluminum alloy cable of the technical scheme is simple in structure, the snow accumulation and freezing conditions on the cable surface can be reduced, and the cable further can resist the severe cold.

Description

technical field [0001] The invention belongs to the field of cables, in particular to a cold-resistant aluminum alloy cable. Background technique [0002] In recent years, with the development of social economy, the power industry has penetrated into daily life, and wires and cables have been widely used as the carrier of power transmission. Wires and cables include conductors and shells. Although the existing wires and cables basically meet the needs of users in terms of strength, waterproof effect, insulation effect and heat dissipation effect, they have certain defects in cold resistance. Because ordinary cables used in low-temperature environments mainly carry out cold-resistant treatment on the outer casing of the cable to prevent the outer casing from cracking in the low-temperature environment and expose the inner conductor to the outside of the outer casing, but this simple cold-proof casing has certain disadvantages, because in cold In winter, especially in Northwe...

AI Technical Summary

Problems solved by technology

Because ordinary cables used in low-temperature environments mainly carry out cold-resistant treatment on the outer casing of the cable to prevent the outer casing from cracking in the low-temperature environment and expose the inner conductor to the outside of the outer casing, but this simple cold-proof casing has certain disadvantages, because in cold In winter, especially in Northwest China, due to the very low ambient temperature, the outside of the cable will freeze, which will increase the weight of the cable, and then cause the cable to be overweight and be pulled off, thus affecting the power transmission.

The conventional treatment method is to disconnect the frozen wire, stop the transmission of electric energy, and use the DC ice melting device to eliminate the ice on the wire. This mode of operation affects the normal power consumption due to the need for power outage operation.

[0003] In addition, because there is often heavy snow in winter in Northwest China, cables are often piled up on the cables in snowy weather, which will also cause the cables to withstand conditions similar to icing on the surface, causing the cables to break due to overweight

Images