A method for manufacturing UHV test uniform field cloth

Abstract

The invention relates to the paint spraying technology of the extra-high voltage test electric field improvement, in particular to a method for manufacturing extra-high voltage test field equalizing cloth. The method includes the flowing steps: (1) purchasing raw materials and tools, (2) producing half-finished field equalizing cloth, (3) testing the half-finished field equalizing cloth after the binding force of the conducting paint and asbeston reaches the peak value, and testing the resistance value of the conducting paint in a unit area, and (4) producing the finished field equalizing cloth. By means of the method, conductive cloth which does not exist on the market and is used in high voltage test occasions is manufactured, shortcomings are overcome through the whole manufacturing method that the asbeston is painted with the conducting paint, and then thin copper wires are knitted to the asbeston to strengthen the conductivity, and compared with the prior art, the manufacturing method is simple, the economical efficiency is good, the manufactured field equalizing cloth is excellent in performance, and construction is conveniently achieved.

Description

technical field [0001] The invention relates to a UHV test and a painting process for improving the electric field, in particular to a method for manufacturing an UHV test uniform field cloth. Background technique [0002] With the rapid development of ultra-high voltage and ultra-high voltage transmission projects, the voltage level of various power equipment is also getting higher and higher. Generally speaking, many routine tests or insulation type tests of high-voltage power equipment include three waveform withstand voltage tests: AC withstand voltage test, DC withstand voltage test and impulse withstand voltage test. [0003] During the test, the high-potential part of the test circuit will generate an electric field with the surrounding buildings or grounding equipment. The higher the voltage, the higher the field strength; the closer the high-potential part is to the surrounding buildings or grounding equipment, the higher the field strength will be. If the surface ...

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Problems solved by technology

However, if there is a large area that requires uniform electric field strength, the use of metal mesh is time-consuming, costly, difficult to arrange, difficult to reuse, and the use effect is affected due to its heavy weight and easy deformation

[0005] At present, the devices used to uniform the electric field on the market are mainly metal products, but the cost of metal products is high, because of their large mass per unit area, for large-area electric field shielding or uniform occasions, the construction is difficult. If you do not want to carry out large-scale construction, It is necessary to manufacture a kind of production raw material which is easy to get, easy to produce, low in cost, and easy to use cloth pressure equalizing material to solve this problem

At present, the conductive fabrics sold on the market are mainly used in low-voltage occasions (such as the lining of radiation protection clothing). Due to the high unit price, the total area of ​​the finished product is relatively small, and the fire performance is poor, so it is not suitable for field equalization in high-voltage test occasions.

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