SAP composite ground materials for electric engineering and preparation method thereof
A composite grounding and electrical engineering technology, applied in the field of material chemistry, can solve the problems of low performance and short efficacy period, and achieve the effects of less raw materials, simple preparation process, and improved lightning current conduction and release capability.
Inactive Publication Date: 2019-02-01
STATE GRID CHONGQING ELECTRIC POWER +1
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Problems solved by technology
However, for the application of resistance-reducing materials, because the relevant standards and regulations have not been revised in a timely manner based on the power market and engineering application effects, many products with low performance and short efficacy cycles have been widely criticized in the industry after they are put into use.
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[0025] Such as Figure 1-3 As shown, the following raw materials are added to the reaction vessel in order by weight: 42% SAP, 12% graphite, 3% carbon black, 3% carbon fiber and 40% conductive cement, at a speed of 100 rpm at 20-25°C Stir and stir evenly for 10-15 minutes to obtain the SAP composite grounding material.
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Abstract
The present invention relates to SAP composite ground materials for electric engineering. The SAP composite ground materials for electric engineering comprises the following components by mass fraction: 35-45% of SAP, 5-20% of graphite, 1-3% of carbon black, 0.1-3% of carbon fiber and 30-45% of electroconductive cement. The present invention further discloses a preparation method of SAP compositeground materials for electric engineering. The ground materials have super absorbent and water retention functions so as to improve the ground body lightning current conduction and releasing capacities and meet the industrial frequency grounding resistance requirements of an overhead line structure; and moreover, the ground materials are few in raw materials and simple in preparation process, andis suitable for wide usage.
Description
technical field [0001] The invention relates to the technical field of material chemistry, in particular to a SAP composite grounding material for electrical engineering and a preparation method thereof. Background technique [0002] The rapid increase in the operating capacity of my country's power system has led to a substantial increase in the short-circuit current into the ground over the same period, and the previous engineering grounding measures have withstood a huge test. Especially in areas with high soil resistivity, overhead lines cross mountains with harsh geographical environments and complex soil distribution. It is difficult for grounding parameters to strictly meet the requirements of national regulations, which seriously affects the safety of line transmission. [0003] The electrical connection between some nodes of the power system and the earth is called grounding. In grounding engineering, the earth provides a zero-potential reference point for the elec...
Claims
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IPC IPC(8): H01R4/66H01R43/16
Inventor 马超刘渝根彭译萱
Owner STATE GRID CHONGQING ELECTRIC POWER