in my graduation project i had a simulation part i do it on MATLAB .part from it concerned with studying the effect of lightning strokes on this tower.the older approches considered the tower footing resistance and the soil one .in my approch i trying to enter the body tower resistance too .i searched for the standard value of the body tower resistance for 500KV,220KV and 132KV tower but i found nothing can somebody help me this is a part of my simulation project i need it to complete work .
Regards
Regards