Railway Planning for Outdoor Cable requirement

Railway Planning for Outdoor Cable requirement

Railway Planning for Outdoor Cable requirement The requirement of cable conduction is to be determined depending upon the circuits run from CT Room /Relay room function. Separate cable line wise and if necessary, function wise are laid from relay room /CT room to facilitate easy testing of cable without much distraction to the traffic. Cable […]

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Aspect Sequence Chart Railway Signalling

Aspect Sequence Chart Railway Signalling Definitions: Aspect – any valid visual indication of a signal as displayed to the driver Aspect sequence – The order in which the aspects of successive signals are displayed to the driver Signal spacing – The distance between the signal or lineside sign displaying cautionary aspect and the signal or lineside sign at […]

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Railway Signalling Equipment Treadle Presentation

Railway Signalling Equipment Treadle Presentation What is Treadle? A treadle is a mechanical or electrical device that detects that a train axle has passed a particular location. They are used where a track circuit requires re-inforcing with additional information about a train’s location, such as around an automatic level crossing, or in an annunciator circuit, that sounds a warning […]

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Level Crossing Interlocking

Railway Signalling Level Crossing Interlocking Circuits

Railway Signalling Level Crossing Interlocking Circuits • Connected Relays: • LXLR: This relay picks up by proving all concerned ASR/OVSRs of signals in whose route/overlap the L.C. gate falls are free.(i.e., picked up) and UCRs are de-energized (i.e., route is not set). • LXRR: It proves that the gate is free to be opened for […]

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