Rated-voltage 6-35kV high-elasticity distortion-resistant wind power cable and manufacture method

Abstract

The invention discloses a rated-voltage 6-35kV high-elasticity distortion-resistant wind power cable. The rated-voltage 6-35kV high-elasticity distortion-resistant wind power cable is characterized in that a cable core is formed by stranding three power insulation cores and three grounding insulation cores, a dual-layer alkali-free glass-fiber strip and a thermoplastic elastomer are sequentially arranged outside the cable core respectively in a wrapping manner and in an extruding manner, and an outermost layer of the cable is a braid layer consisting of stainless steel wires and polyester synthetic fiber yarns; each power insulation core adopts a tinned oxygen-free copper wire and a stainless steel wire to form a conductor in a stranding manner, a single layer of semiconductor cotton-cloth strip is wrapped outside the conductor, and a conductor shielding layer, an EPDM rubber insulation layer and an insulation shielding layer are co-extruded to form the power insulation core; a conductor of each grounding insulation core is provided with a semiconductor rubber shielding layer in an extruding manner. The cable has characteristic of high tensile strength, high flexibility, high wearability, oil resistance, aging resistance, external environmental weather resistance and the like and is applicable to the junction between a turbine motor and a tower barrel in a high-power wind power generating device or other similar fields.

Description

[0001] This application is a divisional application with application number 2014101345644 Technical field: [0002] The invention relates to a high-elasticity twist-resistant wind energy cable with a rated voltage of 6-35kV and a manufacturing method thereof. Background technique: [0003] As a clean and renewable energy, wind energy has been paid more and more attention by countries all over the world. Its reserves are huge, and the total global wind energy resources are about 2.74×10 9 MW, of which the available wind energy is 2×10 7 MW. China's wind energy reserves are large and widely distributed. The wind energy reserves on land alone are about 253 million kilowatts, and the potential for development and utilization is huge. [0004] In recent years, affected by the international macro situation, China's economic development has slowed down. In order to effectively stimulate domestic demand and maintain stable and rapid economic and social development, the governmen...

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Problems solved by technology

[0006] However, the development of wind energy cables is seriously lagging behind. The reason is that wind energy cables require technical indicators such as twist resistance, high and low temperature resistance, and high elasticity. Many domestic cable manufacturers do not have such technical conditions.

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