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Novel graphite composite grounding material and preparation method thereof

A composite grounding and graphite technology, which is applied in the direction of connecting contact materials, contact manufacturing, etc., to achieve the effect of simple method, high density and good electrical conductivity

Active Publication Date: 2014-01-01
WUHAN HONGMEN ELECTRICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems existing in the lightning protection grounding body of the existing electric power system, the present invention provides a novel graphite composite grounding material with corrosion resistance, good electrical conductivity, good flexibility and low cost and a preparation method thereof

Method used

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  • Novel graphite composite grounding material and preparation method thereof
  • Novel graphite composite grounding material and preparation method thereof
  • Novel graphite composite grounding material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0066] The composite graphite has a width of 20mm and a thickness of 0.22mm, and is twisted to obtain a single-strand composite graphite wire, and the tension of the single-strand composite graphite wire is 9N. 13 glass fibers impregnated in water-soluble acrylic resin are compounded in the composite graphite ribbon. With 48 composite graphite wires as the inner core of the composite graphite wire, 24 composite graphite wires are braided outside the inner core of the composite graphite wire by a braiding machine to obtain a composite graphite wire braided layer, and a graphite wire with a diameter of about 24 mm is obtained by double-track cross braiding. Composite grounding material.

Embodiment 2

[0068] The first composite graphite ribbon is composited with 13 glass fibers, the second composite graphite ribbon is composited with 12 glass fibers and one 600D Kevlar fiber, and the single strand of the second composite graphite has a linear tension of 15N. With 48 first composite graphite wires as the inner core of the composite graphite wire, 24 second composite graphite wires are used to weave the outer composite graphite wire braiding layer, and a graphite composite grounding material with a diameter of about 23.5 mm is obtained by double-track cross weaving.

Embodiment 3

[0070] The first composite graphite ribbon is composited with 11 glass fibers and 2 nickel fibers, the second composite graphite ribbon is composited with 12 glass fibers and 1 600D Kevlar fiber, and the single strand of the second composite graphite has a linear tension of 15N. Using 56 first composite graphite wires as the inner core of the composite graphite wire, weaving the outer composite graphite wire braiding layer with 24 second composite graphite wires, and adopting a double-track cross weaving method to obtain a graphite composite grounding material with a diameter of about 27mm.

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Abstract

The invention discloses a novel graphite composite grounding material and a preparation method thereof. The novel graphite composite grounding material is in the shape of a rope or stranded wire, and comprises a composite graphite yarn inner core and a composite graphite yarn knitted layer wrapped outside the composite graphite yarn inner core, wherein the composite graphite yarn inner core is a composite graphite yarn bundle composed of a plurality of first composite graphite yarns or a single first composite graphite yarn; each first composite graphite yarn is prepared by twisting a first composite graphite belt; the composite graphite yarn knitted layer is prepared by knitting a second composite graphite yarn; and the second composite graphite yarn is prepared by twisting a second composite graphite belt. The graphite composite grounding material disclosed by the invention has the advantages of corrosion resistance, favorable conductivity, high flexibility, low price, precise soil association and the like, and is easy for transportation; since the price is low, artificial theft destroy can be avoided; and the graphite composite grounding material is suitable for the fields of transformer stations, overhead transmission line towers, tall buildings and all other projects in need of electric grounding.

Description

[0001] technical field [0002] The invention relates to the technical field of power system grounding, in particular to a novel graphite composite grounding material and a preparation method thereof. Background technique [0003] The power grounding system is an important facility to ensure the safe and reliable operation of power equipment. The grounding body of current power equipment mainly has the following deficiencies: (1) Poor corrosion resistance. Generally, the metal grounding body is expected to have a service life of 20 years, and some even have been severely corroded within 3 to 5 years. (2) High cost. The cost of copper grounding materials is high and the domestic application rate is low. Galvanized steel has a certain anti-corrosion effect, but the price is much higher than ordinary steel. (3) The tightness with the soil is not high. Due to its own hard and brittle characteristics, the metal grounding body is not tightly combined with the soil during th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R4/66H01R43/16
Inventor 阮江军胡元潮龚若涵
Owner WUHAN HONGMEN ELECTRICAL TECH CO LTD
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