Study of lightning phenomena on UG cables based on soil resistivity

Abstract

Lightning stroke has strong underground (UG) cables. Assessment of the on UG cables is important for optimal de system and to enhance the reliability of powe distribution. In this work, the effect of lightni studied based on the resistivity of the soil. An is used to estimate the magnitude of lightning strike the ground, depending on the resis Lightning performance and prediction model the maximum breakdown distance in the s current impacting the cable laid near to the strike. Also the over voltage developed betw and sheath is estimated. It is seen that, the ch soil strongly influences the lightning perfor breakdown distance, impacting current on c safe burial of cables in soil are affected by soil c