MODULE AND ROD DEEP GROUNDING SYSTEM WITH SOIL ACTIVATION Russian patent published in 2022 - IPC H01R4/66 

FIELD: power engineering.

SUBSTANCE: invention relates to the field of electric power engineering and can be used as a grounding apparatus for ensuring operation safety of electrical plants for various purposes, including technological equipment of telecommunications facilities, advanced digital equipment of business centres, medical equipment, etc. Conductive properties of the soil whereto the grounding apparatus are submerged are primarily characterised by the specific resistance of the soil. The most effective herein is a module and rod grounding apparatus allowing submerging to a depth of up to 30 m and achieving the required current spread resistance on a limited area due to the use of more conductive dense and moist layers of soil lying at a great depth. The structure of the module and rod grounding apparatus allows for the use of metals with different corrosion resistance and increased reliability of threaded connections as a grounding apparatus, applying a locking apparatus preventing self-unscrewing under impact loads in the submersion mode of the grounding apparatus, allowing orienting on the calculated operating life at the design stage of power supply for temporary or long-term electric plants, as well as for electric plants of especially critical nodes and highly corrosive media. Use of a soil activator with drainage properties allows the installation of a module and rod grounding apparatus to be brought to a new level, significantly reducing the transient resistance and increasing the conductivity of the soil both in the horizontal and in the vertical planes along the grounding rods, wherein the soil can be activated both during and after installation.

EFFECT: increase in the reliability of the grounding apparatus due to the reliable electrical contact between separate steel rods, provided by increasing the fracture resistance of connection of separate rods on submerging into soil.

1 cl, 1 dwg