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2MW wind power generation cable with torsion-resistant sheath

A torsion-resistant and sheathing technology, applied in the direction of power cables, power cables, cables, etc. with shielding/conducting layers, can solve the problems of small stress in wind power cables, and achieve low calorific value, good low temperature resistance, and excellent cold resistance. sexual effect

Inactive Publication Date: 2013-01-09
重庆鸽牌电线电缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to improve the mechanical performance and low temperature resistance of the wind power generation cable by adopting a new type of insulating layer material and sheath layer material, so that the internal stress of the wind power generation cable is small when it is bent and torsion, and the temperature is reduced at -40 ℃ low temperature torsion will not produce structural deformation and material damage

Method used

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  • 2MW wind power generation cable with torsion-resistant sheath
  • 2MW wind power generation cable with torsion-resistant sheath

Examples

Experimental program
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Effect test

Embodiment 1

[0019] Embodiment 1: as figure 1 As shown, a 2MW single-core wind power generation cable with a torsion-resistant sheath includes a compact annealed copper conductor 1, an isolation layer 2, an insulating layer 3, and a sheath layer 4. The isolation layer 2 is arranged between the compact soft copper conductor 1 and the insulating layer 3 , and the sheath layer 4 is extruded onto the insulating layer 3 .

[0020] Cable conductor 1 adopts compact soft copper conductor. Before manufacturing the compact soft copper conductor 1, anneal the copper wire used to ensure its elongation at break ≥ 30%; during the stranding process, adjust the tension of the twisted wire to be uniform, avoid stress concentration, and control the pitch-diameter ratio of the re-twisted strands ≤16; and the conductor is fastened with high-strength tape to ensure structural stability. The compact soft copper conductor manufactured by the above method has good flexibility and avoids fatigue damage during fr...

Embodiment 2

[0029] Embodiment 2: as figure 2 As shown, a 2MW multi-core wind power generation cable with a torsion-resistant sheath and a metal shield is twisted by multiple insulated cores. The cable conductor 1 adopts a compact annealed copper conductor 1, which is the same as the conductor described in Embodiment 1. In this embodiment, the multi-core 2MW wind power cable with a torsion-resistant sheath uses a highly flexible chlorine Filled with chlorinated polyethylene rubber strip filler 4, an isolation layer 2 is arranged between the compact annealed copper conductor 1 and the insulating layer 3, and between the highly flexible chlorinated polyethylene rubber filler strip 4 and the sheath 6 Covered with a layer of tinned copper wire braided shield 5.

[0030] The insulating layer 3 adopts a new type of VDE 3GI3 ethylene-propylene rubber mixture material. The mixture material selected in this embodiment is composed of the following raw materials in parts by weight: 38 parts of EPT6...

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Abstract

The invention relates to a 2MW wind power generation cable with a torsion-resistant sheath. The wind power generation cable comprises a soft copper conductor, a sheath layer and an insulating layer, wherein the sheath layer is made of a novel VDE5GM3 high-flexibility chlorinated polyethylene rubber mixture material, and the insulating layer is made of a novel VDE3GI3 ethylene propylene rubber mixture material. In the wind power generation cable, the novel VDE3GI3 ethylene propylene rubber mixture material is used as an insulating layer material, and the novel VDE5GM3 high-flexibility chlorinated polyethylene rubber mixture material is used as a cable sheath layer material, so that the wind power generation cable has high low temperature resistance, corrosion resistance, ultraviolet ray resistance and weather atmosphere aging resistance at the application environment temperature of between -40 and 90 DEG C, the flame retardant property meets the requirement of integrated environmental control (IEC) 60332-1-1:2004, and the number of torsions is more than or equal to 5,000 times at the temperature of -40 DEG C.

Description

technical field [0001] The invention relates to a power transmission device, in particular to a 2MW wind power generation cable with a torsion-resistant sheath. Background technique [0002] In wind power generation systems, cables are an important part of power transmission and signal transmission. Cables for wind power generation should have good properties such as low temperature resistance, corrosion resistance, ultraviolet resistance, and weather and atmospheric aging resistance. Cables for wind power generation can be divided into fixed and mobile installation cables according to the application occasions. Mobile cables are laid vertically in the air and need to be twisted frequently. Therefore, mobile cables should also have good torsion and bending resistance. [0003] The cable sheath is in direct contact with the external environment and plays a protective role for the cable. Domestic similar cables mostly use thermoplastics such as TPU and TPV as sheaths. TPU h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B9/00H01B9/02
Inventor 王世民张涛张敏
Owner 重庆鸽牌电线电缆有限公司