High-elasticity anti-twist wind energy cable with nominal voltage of six to thirty-five kilowatts and manufacturing method

Abstract

The invention discloses a high-elasticity anti-twist wind energy cable with the nominal voltage of six to thirty-five kilowatts. Three power insulated wire cores and three grounding insulation wire cores form a cable core in a twisted mode, the outer side of the cable core is sequentially provided with a two-layer alkali-free glass fiber band in an overlapped wrapping mode and a thermoplastic elastic outer jacket in an extruded wrapping mode, the outermost layer of the cable is a stainless steel wire, polyamide or polyester synthetic fiber yarn woven layer; each power insulated wire core forms a conductor by twisting tin-plated non-oxygen copper wires and stainless steel wires, each conductor is wrapped with a single-layer semi-conductive cotton tape wrapping layer in an overlapped wrapping mode, and a conduct shielding layer, an ethylene-propylene-diene monomer insulated layer and an insulated shielding layer form one power insulated wire core in an extruded wrapping mode; a semi-conductive rubber shielding layer is arranged on the outer side of each grounding insulation wire core conductor in an extruded wrapping mode. The high-elasticity anti-twist wind energy cable has the advantages of being high in extension strength, high in flexibility and abrasion resistance, resistant to oil, aging and outer environment weather and the like, and is suitable for connection portions of a turbine and a tower in a high-power wind power generation device and similar occasions.

Description

Technical field: [0001] 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: [0002] 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. [0003] 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 government has increased investment in fixed assets in the fields of transportation and energy, and s...

AI Technical Summary

Problems solved by technology

[0005] 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.

Images