Investigation of Lightning Electromagnetic Fields on the Distribution Power Lines Close to the Line Corridor Towers

Urban areas have become the most rapidly developing areas in the country. With a limited area for the power transmission line, the distribution power line appears to be closely associated with the installed line corridor of the overhead transmission line tower (OHTL). However, there may be an effect of the lightning electromagnetic field (LEMF) value when lightning strikes directly on the tower which consequently generate the lightning induced voltage (LIV) on the distribution power line. Thus, a comprehensive study is conducted to observe the peak value of LEMF of distribution power lines close to the line corridor for urban planning purposes. MATLAB is used to determine the LEMF for the distribution power line. The results indicate that the LEMF value depends on the lightning current stroke value, ground reflection value and the distance between the distribution power line and OHTL. Additionally, for the distribution power line to be installed close to the line corridor, it applies in the range of 2 m to 5 m if the type of soil is a mixture of sand and clay or sand only. This study provides an advantage in understanding the peak value of LEMF within a certain range and specific types of soil to ensure safety towards humans and infrastructure and solving the issues of land inaccessibility besides achieving the sustainable development goals (SDG) 9 and 11 which making the cities and human settlements inclusive, safe, and sustainable.