Foot patrolling is necessary to maintain the OHE. Overhead equipment (OHE) provides energy to electrically driven locomotives & EMUs. OHE comprises of the electrical conductor over the track, together with their associated fittings, insulators and other attachments. For utmost utilization of traction assets, outage of overhead equipment should be minimum. For this proper maintenance of OHE is essential to cater growing demand of passenger and freight traffic on the Railways.