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02-07-2019
What sleeper spacings does IR use?
July 18, 2019

Broad Gauge (See table below.) Most BG mainline sections now have about 1660 sleepers per km (about 60cm spacing); the earlier standard used to be 1538 sleepers per km (about 65cm spacing). BG branch lines may have 1540 sleepers per km (about 65cm spacing) or 1340 sleepers per km (about 75cm spacing); the older standard was 1307 sleepers per km

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What rail fasteners does IR use?
July 18, 2019

IR uses various kinds of Pandrol design fasteners, ERC Mark III (850-1100kg toe load), and ERC Mark V (1200-1500kg toe load) (the latter developed by RDSO). Pandrol 'J' clips, often yellow in colour, which have a lower profile and lower toe load), are used where they need to be removed and reinserted easily and where ordinary clips might interfere

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What are the usual neutral temperatures for continuously welded rail? What equipment does IR use for track destressing?
July 18, 2019

IR divides the country into five zones based on the normal temperature variation expected in each region. The maximum rail temperature difference is about 70C (ranging from a minimum of -5C to a maximum of 60C or so -- the rail temperature can be several degrees higher than the ambient temperature. The neutral temperature or stress-free

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What kinds of sleepers are used by IR?
July 18, 2019

Cast iron sleepers ('CST-9') are widely used. They are not very suitable for high-speed traffic and so are not usually seen on the mainline BG sections. The earlier 'pot sleepers' were especially prone to problems; newer cast iron sleepers (with ends that have two pockets) are much more laterally stable. Steel trough sleepers ('ST') are very

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What kinds of rail joints does IR use?
July 18, 2019

Fishplated joints are the most basic joints seen, on lines where there is no track-circuiting, and no welded rail in use. Fishplated joints are so called because of the use of a fishplate, which is a bar that is attached by means of bolts (fishbolts) to the rails on either side of the joint. Usually there are two bolts securing the fishplate on

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Who makes rails for IR?
July 18, 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

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Raipid Rail क्या है? कैसे बदलेगा शहरों का भविष्य | Delhi-Meerut RRTS पूरी जानकारी

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