High flexibility tensile corrosion-resistant aluminum alloy aerial insulating cable

Abstract

The invention discloses a high flexibility tensile corrosion-resistant aluminum alloy aerial insulating cable. The high flexibility tensile corrosion-resistant aluminum alloy aerial insulating cable comprises an aluminum alloy conductor, and a semiconducting conductor shielding layer and an insulating layer extrude the aluminum alloy conductor in sequence to constitute a line core; a fiber belt layer winds the line core and is provided with a steel belt shielding layer, a polyester rubber isolation pad is arranged outside the steel belt shielding layer, an aramid fiber tensile element is weaved outside the polyester rubber isolation pad, and a tetrafluoroethylene-hexafluoropropylene copolymer sheath is arranged outside the aramid fiber tensile element. The high flexibility tensile corrosion resistant aluminum alloy aerial insulating cable has very high mechanical strength and superior chemical agent resistance and also has superior hydrolysis resistance, superior oil resistance and fuel resistance and the like.

Description

technical field [0001] The invention relates to the field of power cables, in particular to a highly flexible, tensile and corrosion-resistant aluminum alloy overhead insulated cable. Background technique [0002] The choice of the span of the overhead insulated cable directly affects the project cost and operation safety of the power transmission line. The project cost and operation safety are currently in mutual restraint. Although the overhead insulated cable has been widely used, the span distance is short and the safety is not high. , project cost and other issues have become increasingly prominent recently, and have attracted great attention from the power sector. [0003] There is already a national standard for overhead insulated cables in China. This standard only specifies the structural form and technical requirements of pure aluminum core overhead insulated cables. Pure aluminum core overhead insulated cables are far from meeting the laying requirements of large ...

AI Technical Summary

Problems solved by technology

[0002] The choice of the span of the overhead insulated cable directly affects the project cost and operation safety of the power transmission line. The project cost and operation safety are currently in mutual restraint. Although the overhead insulated cable has been widely used, the span distance is short and the safety is not high. , project cost and other issues have become increasingly prominent recently, and have attracted great attention from the power sector

[0003] There is already a national standard for overhead insulated cables in China. This standard only specifies the structural form and technical requirements of pure aluminum core overhead insulated cables. Pure aluminum core overhead insulated cables are far from meeting the laying requirements of large spans, flexibility, and corrosion resistance. When rivers are blocked or it is difficult to set crossing points in a short distance, the bending radius is small, and the environment is harsh, the cable laying also has peripheral steel strands to support the strength requirements of the cable. Using this form, the project cost will be significantly increased. , and there will be some friction between the clamp and the overhead insulated cable, which directly affects the service life of the cable and the safe operation of the line

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