Composite graphite grounding material with low skin effect and preparation method for composite graphite grounding material

A skin effect, composite grounding technology, applied in the direction of connecting contact materials, carbon-silicon compound conductors, cable/conductor manufacturing, etc., to achieve good corrosion resistance, simple preparation process, and reduce step voltage and contact voltage.
CN103500595AActive Publication Date: 2014-01-08WUHAN HONGMEN ELECTRICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN HONGMEN ELECTRICAL TECH CO LTD
Publication Date
2014-01-08

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Abstract

The invention discloses a composite graphite grounding material with a low skin effect and a preparation method for the composite graphite grounding material. The composite graphite grounding material is shaped into a rope or a stranded wire, and comprises a flexible inner core, a second outer composite graphite yarn layer and an outermost composite graphite yarn braided layer, wherein the flexible inner core is wrapped by the second outer composite graphite yarn layer; the second outer composite graphite yarn layer is wrapped by the outermost composite graphite yarn braided layer. The composite graphite grounding material has the advantages of high corrosion resistance, high electrical conductivity, high flexibility, low skin effect, low cost, easiness for transportation, high precision of bonding with soil and the like; the composite graphite grounding material is low in cost, so that the composite graphite grounding material can be prevented from being artificially stolen and damaged, and is applied to all engineering fields of transformer substations, overhead power transmission line towers, high-rise buildings and the like with electrical grounding requirements.
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Description

[0001] technical field

[0002] The invention relates to the technical field of lightning protection and grounding for power systems, in particular to a low-skin effect 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 the current power equipment mainly has the following deficiencies: (1) Serious corrosion. 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. Copper metal with better anti-corrosion effect is expensive and is rarely used in China. (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 the laying process, the contact resistance is large, and it is easy to fo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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