@article{MAKHILLJEAS2019142218623, title = {Influence of Soil Conductivity and Rod-to-Earth Gaps on Lightning Breakdown Voltage and Peak Current of Rod-to-Plane Air Gaps}, journal = {Journal of Engineering and Applied Sciences}, volume = {14}, number = {22}, pages = {8362-8367}, year = {2019}, issn = {1816-949x}, doi = {jeasci.2019.8362.8367}, url = {https://makhillpublications.co/view-article.php?issn=1816-949x&doi=jeasci.2019.8362.8367}, author = {Usama,Abdulrahman,Salman,Abderrahmane and}, keywords = {U50 breakdown voltage,heterogeneous Earth,homogeneous Earth,Lightning discharge,electrode gap,soil conductivity}, abstract = {This study deals with the influence of soil conductivity and a rod-to-earth electrode gap on lightning impulse voltages. Two types of soils are considered: homogeneous and non-homogeneous/heterogeneous. The heterogeneous soil consists of a metallic plate in contact with a parallelepiped tank filled with water or wetted sand of different conductivities. It is shown that, for homogeneous Earth, the U50 decreases when 50% increasing the soil conductivity and the electrodes gap decreases. For heterogeneous soil configuration and a given distance from the HV electrode to the metallic electrode, the U50 is higher for lower conductivities of 50% homogeneous soil.} }