Overhead distribution lightning performance on joint use concrete poles with transmission lines

Electrical power is an essential source of comfort, numerous tasks are almost impossible to be performed without the aid of the electrical power. To keep up with the population growth worldwide, electrical infrastructure are being upgraded and up-rated. To maximize the use to the land and reduce construction cost, joint-use structures between distribution and transmission line are broadly deployed. These joint structures introduce the overhead earth wire (OHEW), pole earth grids and taller poles to the distribution network. This paper endeavours to study the impact that these joint structures have on the lightning performance of the distribution line. Furthermore, the works provide important information on lightning performance and determine when these joint structures worsen or enhancing the lighting performance of the distribution asset. Case study is also included.