Question

explain the gauging requirements of the track including the interface with OLE and/or DC conductor in terms of rail geometry.

Answer 1

● The rail gauge for track is defined as the clear minimum perpendicular distance between the inner faces of the two rails.

Broad Gauge: width 1676 mm to 1524 mm or 5'6” to 5'0”

Standard Gauge: width 1435 mm and 1451 mm or 4'-8⅟2”

● OLE (Overhead line equipment):- The of position the overhead contact wire, which supplies electric power to the train, in terms of height above rail level and horizontal distance from the centre line of track is measured on the basis of the rail gauge distance.

Keeping the wire within its design parameters ensures that current collection is optimised and wear of pantograph carbon and contact wire is minimised.