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Production method of power cable for solar photovoltaic power generation assembly

A technology for solar photovoltaic and power generation equipment, which is applied in the manufacture of cables/conductors, insulation of conductors/cables, and circuits. The effect of lengthening rate, improving safety performance and service life

Active Publication Date: 2011-04-20
SICHUAN MINGXING CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cables manufactured by this method still cannot meet the requirements of solar photovoltaic power generation equipment

Method used

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  • Production method of power cable for solar photovoltaic power generation assembly
  • Production method of power cable for solar photovoltaic power generation assembly

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Referring to the accompanying drawings, the present invention discloses a method for manufacturing a power cable for solar photovoltaic power generation equipment. The manufacturing steps are as follows: material selection-wire drawing-conductor stranding-isolation layer wrapping-insulation layer extrusion-insulation layer irradiation alternating Joint processing - outer sheath extrusion - outer sheath irradiation crosslinking treatment - finished product;

[0031] Extrusion of insulating layer: Extrusion mold is used, and the screw with compression ratio of 1.25:1~2.0:1 is used to extrude low-smoke and halogen-free thermosetting polymer on the insulating layer to form an insulating layer. The processing temperature is controlled at 100-155°C. The actual size of the extrusion die sleeve is 2-3% mm smaller than the actual size of the traditional selection die sleeve;

[0032] Insulation layer radiation cross-linking treatment: radiation cross-linking treatment on the ins...

Embodiment 2

[0040] A method for manufacturing a power cable for solar photovoltaic power generation equipment, the manufacturing steps are as follows: material selection-wire drawing-conductor stranding-isolation layer wrapping-insulation layer extrusion-insulation layer radiation crosslinking treatment-outer sheath extrusion- Radiation cross-linking treatment of the outer sheath - finished product;

[0041] The conductor stranding step refers to stranding the multi-strand copper monofilaments formed after the wire drawing process at a stranding pitch that is 18 to 20 times the diameter of the stranding conductor to form a conductor.

[0042] Extrusion of insulating layer: Extrusion mold is used, and the screw with compression ratio of 1.25:1~2.0:1 is used to extrude low-smoke and halogen-free thermosetting polymer on the insulating layer to form an insulating layer. The processing temperature is controlled at 100-155°C. The actual size of the extrusion die sleeve is 2-3% mm smaller than ...

Embodiment 3

[0047] On the basis of Embodiment 1 or / and 2, the insulation layer wrapping means that the non-hygroscopic tape is evenly wrapped around the conductor made after the conductor stranding step to form an isolation layer, and the wrapping overlap ratio is 20 %, and form the cable core.

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Abstract

The invention discloses a manufacturing method for power cables used for solar energy photovoltaic power-generating equipment. The method is characterized in that the manufacturing process has the following steps: material selection, wire drawing, conductor twisting, isolated-layer wrapping, insulation-layer extrusion, insulation-layer radiation cross-linking processing, jacket extrusion, jacket radiation cross-linking processing and finished-product. The cable manufactured by the method has high weather resistance, high UV radiation resistance and high ozone corrosion resistance. Moreover, the resisted high temperature can reach 120 DEG C. The cable can resist atrocious weathers and mechanical impacts so as to dramatically enhance the safety and service life of the solar energy photovoltaic power-generating equipment.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a method for manufacturing a power cable suitable for solar photovoltaic power generation equipment. Background technique [0002] With the increasing popularity of photovoltaic power generation, the development of products related to solar power generation has been promoted, because solar power generation systems are often used under harsh environmental conditions, such as high temperature and radiation. The existing ordinary wires and cables usually use polyvinyl chloride insulation and polyvinyl chloride outer sheath. Ordinary cables made of this material will appear on the surface of the cable after long-term sunlight, wind, rain, and ozone erosion in the atmosphere. Cracking phenomenon, the physical and mechanical properties of the product are greatly reduced, so ordinary wires and cables have more potential dangers during use, and are not resistant to wind and rain, ultravio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/00H01B13/14H01B13/24H01B13/26
Inventor 孙爱敏盛业武陈贵德沈智飞黄杰
Owner SICHUAN MINGXING CABLE
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