Self-bearing tensile wind energy power cable

A power cable and tensile type technology, applied in the field of self-supporting tensile type wind energy power cables, can solve the problems of not very long life of conductors and conductive cores, not very tight stranded conductors, general flexibility of conductors, etc. Moisture-proof and good sealing, not easy to break, the effect of reducing the weight of the cable

Inactive Publication Date: 2016-03-16
JIANGSU LONG E CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages are: long-term reciprocating positive and negative twists on wind power generation equipment, the life of the stranded conductors and conductive cores is not very long, and the cables are easily deformed, resulting in easy twisting
The reason for these defects is that the pitch of the stranded conductors is sparse, the stranded conductors are not very tight, the softness of the conductors is average, and there is no pre-torque force when twisting back and forth.

Method used

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  • Self-bearing tensile wind energy power cable

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Embodiment Construction

[0014] Such as figure 1 As shown, a self-supporting tensile type wind energy power cable includes a cable core, which is extruded on the outer isolation belt 4 and the outer sheath 6 of the cable core; the main improvement is that the plurality of tubular conductors 2 of the cable core It is twisted with the rubber filling strip 3 extruded between the tubular conductor 2; a load-bearing core 1 is provided at the center of the tubular conductor, and the stress point of the conductor is concentrated on the central load-bearing core. During the winding process of the cable, The annealed copper wire of the inner conductor is protected, and it is not easy to break; a metal tensile tube 5 is provided between the isolation belt 4 and the outer sheath 6, so that the cable has good compression resistance, moisture resistance and sealing performance, and embossing can improve its performance. bending properties.

[0015] The use of tubular conductors can save metal materials and reduce...

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Abstract

The invention discloses a self-bearing tensile wind energy power cable. The self-bearing tensile wind energy power cable comprises a cable core, an isolation strip wrapped outside the cable core in an extruded manner and an outer sheath; a plurality of tubular conductors and rubber filling strips extruded among the tubular conductors are stranded, such that the cable core is formed; a bearing core is arranged in the centre of the tubular conductor; and a metal tensile tube is arranged between the isolation strip and the outer sheath. The self-bearing tensile wind energy power cable disclosed by the invention is high in self-bearing performance, low in attenuation, good in shielding effect and good in tensile performance, moisture resistance and sealing performance.

Description

technical field [0001] The invention belongs to the field of power cables, in particular to a self-supporting and tension-resistant wind energy power cable. Background technique [0002] The National Wire and Cable Quality Supervision and Inspection Center officially implemented the technical specifications for low-temperature wind energy power cables in May 2009. A detailed description. Before that, low-temperature wind energy power cables had mixed product quality, and a large number of unqualified or bad products flooded the market, bringing economic losses to users and seriously threatening the normal operation of electrical control equipment and power systems. [0003] As the country's demand for renewable energy continues to increase, low-temperature wind energy power cables, as a supporting product for wind power generation equipment, are becoming a new cable variety with huge market potential, developed and put into the market. The conductor of the low-temperature ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/20H01B7/22H01B7/282H01B9/00
CPCH01B9/006H01B7/202H01B7/221H01B7/2825
Inventor 芮文宰刘晓停芮逸蒋临风
Owner JIANGSU LONG E CABLE
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