Who makes rails for IR?

18-07-2019

A lot of rails come from SAIL (Steel Authority of India), a public sector company which makes rails at its Bhilai Steel Plant (now the second largest rail supplier in the world). SAIL supplies almost all the 52kg/m rails used by IR, and some of the 60kg/m rails. It supplies the basic 13m, 26m, and 80m rails, and is now manufacturing the 240m and 260m welded rail panels as well. The private sector company Jindal Power and Steel has recently set up a long rail manufacturing unit to make 260m rails. In addition, rails have often been imported by IR, e.g., from British Steel, Penang (China), and Stela Group (Poland). Some private sector companies have plans to enter the arena as well. The

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How is failure of signals guarded against?
June 21, 2019

Signal installations are designed as far as possible for fail-safe operation, which means that any failure should leave the system in a state where dangerous train movements are not allowed. For instance, in case of a failure detected at a panel interlocking installation, all signals controlled by it are designed to revert to On. Similarly, a

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What is a ‘fixed signal’?
June 21, 2019

A fixed signal is any signal that is permanently erected at a location. The term is used to distinguish normal signals and indicators from hand or lamp and flag signals, detonators, flares, bells, and other special-purpose methods of signalling. ये भी पढ़े - योगासन का इतिहास तथा योग से

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What does ‘ahead’ or ‘behind’, ‘advanced’ or ‘retarded’, or ‘front’ or ‘rear’ mean when referring to a track or signals?
June 21, 2019

All orientation terms used when talking about track, points, signals, stations, etc. are given from the point of view of the driver of a train looking in the direction that the train is moving. Thus, a signal may be ahead of him or behind him. A signal or station that he is approaching is referred to as being in front, and one that he has passed

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Sometimes a signal pole is observed to carry one signal at normal height and another much higher up; what are those? Or, what are Co-acting Signals?
June 21, 2019

A co-acting signal is a duplicate signal provided on the same mast as a stop signal, which always shows the same indication as that stop signal. The purpose of such a co-acting signal is to allow a continuous unobstructed view of the signal indication from all positions where a driver might need to observe it, in cases where an overbridge or other

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What does it mean when a colour-light signal does not face along the tracks but points away?
June 21, 2019

Colour-light signals that are not in use (just set up but not yet commissioned, or in the process of being decommissioned) are often turned to point away from the tracks, so that it is clear to all locomotive drivers that the signal is not in service. Otherwise, it would be treated as an active signal that is malfunctioning (lamps burnt out),

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What do the rings, bars, etc. found on some signals mean?
June 21, 2019

Stop signals controlling the approach to goods yards or goods-only lines have a black ring fixed to the end of the semaphore arm. No corresponding indication is provided in colour-light territory. Similarly, semaphore signals controlling lines for dock platforms have a black semicircle (in the shape of a 'D') fixed to the end of the semaphore arm.

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