OHE Arrangement at Sainthia ROB
Commissioning of OHE was not possible under Sainthia ROB 122 between Khana-Pakur , due to low head room clearance at the time of Railway Electrification. OHE was anchored on both ends and under ROB there was no OHE zone. For electric traffic movement, pantograph lowering caution board had to be provided at different locations of Sainthia ROB. According to indication, Loco pilot had to lower the pantograph and proceed the dead OHE zone only by dynamic inertia. Due to such arrangement there were multiple causes of...
more... pantograph entanglement either due to late lowering of pantograph by crew or due to pantograph’s problem. Total 35 cases of pantograph entanglement happened at this place. To avoid such repetitive failures of pantograph and OHE as well as to reduce the stress of Loco pilots, a dead OHE was designed under the ROB which provided continuity of contact wire and thus the lowering of pantograph was not required. The arrangement was commissioned in all the lines under Sainthia ROB. After providing such type of dead OHE under ROB 122, No pantograph entanglement case has occurred till now. This has been introduced for the first time in Indian Railways.