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A kind of photoelectric composite twist-resistant medium-voltage wind energy cable and preparation method thereof

A photoelectric composite and twist-resistant technology, which is applied in the direction of power cables, insulated cables, and communication cables with shielding layers/conductive layers, to achieve the effects of good softness, small outer diameter, and enhanced strength

Active Publication Date: 2017-01-11
ZHONGTIAN TECH IND WIRE&CABLE SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with the existing technology is that the existing medium-voltage wind power cables are only limited to power transmission.

Method used

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  • A kind of photoelectric composite twist-resistant medium-voltage wind energy cable and preparation method thereof
  • A kind of photoelectric composite twist-resistant medium-voltage wind energy cable and preparation method thereof
  • A kind of photoelectric composite twist-resistant medium-voltage wind energy cable and preparation method thereof

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Experimental program
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Effect test

Embodiment

[0046] Such as figure 1 As shown, a photoelectric composite twist-resistant medium-voltage wind energy cable includes a cable core 1, a cable-forming tape layer 2, an inner sheath layer 3, an aramid braid layer 4 and an outer sheath layer 5, and the outer sheath layer 5 of the cable core 1 is The cable wrapping layer 2, the inner sheath layer 3, the aramid fiber braiding layer 4 and the outer sheath layer 5 are covered in sequence.

[0047] The cable core 1 is composed of three power transmission cores 11 , three ground cores 12 and an optical fiber unit 13 twisted together.

[0048] The power transmission core 11 is composed of a tinned stranded conductor layer 111, a semiconductive tape layer 112, a conductor shielding layer 113, an ethylene-propylene rubber insulating layer 114, an insulating shielding layer 115, and an aramid fiber braiding layer 116; The stranded conductor layer 111 is made by the process of beaming wires in the same direction first and then re-twisting ...

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Abstract

The invention discloses a photoelectric composite torsion-resistant medium-voltage wind power cable and a preparation method thereof, comprising a cable core, a cable-forming tape layer, an inner sheath layer, an aramid braided layer and an outer sheath layer, and the outer sheath layer of the cable core is sequentially Coated into a cable wrapping layer, an inner sheath layer, an aramid fiber braiding layer and an outer sheath layer; the cable core is composed of three power transmission cores, three ground cores and an optical fiber unit twisted. The present invention introduces an optical fiber structure into the cable, which can be better used for signal transmission, and through its own system line resources, has the characteristics and functions of the optical cable, realizes system operation monitoring, and ensures safe and stable operation of the system. Both the power transmission core and the ground core are made of aramid braided reinforcing layer. The continuous use temperature range of aramid fiber is ‑196°C to 204°C, and its strength is high, which is 5 to 6 times that of steel wire. The torsion causes the core to be damaged and cracked, so as to ensure that the cable will not be cracked or damaged during torsion, so as to prolong the service life of the cable.

Description

technical field [0001] The invention belongs to the field of cables, and in particular relates to a photoelectric composite torsion-resistant medium-voltage wind energy cable and a preparation method thereof. Background technique [0002] With the development of the wind power market, the capacity of wind turbines has increased year by year, and the capacity of a single unit has increased to the megawatt level. It can be seen that there is also a large market for high-power medium-voltage wind power cables used with wind turbines. The wind energy cables are installed and laid in the tower, and the environment is harsh and sparsely populated. In addition to the high requirements for the cable's tensile strength, cold resistance, and twist resistance, it also has high requirements for system monitoring and data transmission. Safe and stable operation. However, the problem existing in the prior art is that the existing medium-voltage wind power cables are only limited to reali...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B11/22H01B9/02H01B7/17
Inventor 刘凤勤陈晖徐鹏飞皇凤娟沈阳阳
Owner ZHONGTIAN TECH IND WIRE&CABLE SYST CO LTD
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