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METHOD FOR DESIGN, CONSTRUCTION AND COMMISSIONING OF EARTHING CENTRES IN ROCKY AND SANDY SOILS (SANDSTONE) AND OTHER SOILS WITH HIGH RESISTIVITY
METHOD FOR DESIGN, CONSTRUCTION AND COMMISSIONING OF EARTHING CENTRES IN ROCKY AND SANDY SOILS (SANDSTONE) AND OTHER SOILS WITH HIGH RESISTIVITY
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机译：土石方（沙石）及其他高电阻率土的设计，建造和调试方法
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摘要
The present invention relates to electric and engineering installations in buildings and outdoor facilities for which it is necessary to construct earthing centres for electric safety or lightning protection in difficult soils with high resistivity û rocky, stony, sandy, etc. The existing methods in this area are related to works in soft soils with good resistivity (up to 500 Q/m). Their use for construction of earthing centres in rocky and sandy soils /sandstone/ and other soils with high resistivity is extremely difficult /if at all possible/ and resource inacceptable and the constructed earthing centres cannot fulfil their purpose. The inventor proposes to solve the problem by means of two technically related methods for design, building and commissioning of vertical and horizontal earthing centres in soils with high resistivity û rocky, stony, sandy and other soils. The essence of the solution is that during the construction of the earthing centres the methods of ôDirect drillingöor ôExplosionö are used for execution of holes or trenches, which are filled with conductive substance in which the earthing electrodes are placed. The invention can be applied in the power engineering, the mechanical engineering, the mine industry, the processing industry, the communications, etc, for earthing of electric installations, facilities and apparatuses located in difficult soils with high resistivity.
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