Indian Railways has decided to introduce eight Wheeled Diesel Electric Over Head Equipment (OHE) inspection and maintenance car, for ensuring safe rail operation. An official release said, with the introduction of these OHE maintenance and inspection cars, the reliability and safety of OHE equipment on Indian Railway will be increased. <br/>This inspection car is a self-propelled vehicle and is used not only for periodical inspection, patrolling and maintenance of traction overhead equipment but also used for attending to sites of breakdown and restoration. These are specially used during night for electric current collection tests in order to ascertain the safe contact between pantograph of electric locomotive and contact wire of the OHE.