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Check Rail on Curve -
Check Rails are basically provided on sharp curves to reduce the lateral wear on the outer rail. They also prevent the outer wheel flange from mounting on the rail and this decrease the chances of derailment of the vehicles. Check Rail wear out quite fast but as these are normally worn rails unfit for main line tracks further wear of checkrails is not considered objectionable.
As per present stipulations check rails are provided on the inside of the inner rails on curves sharper than 80 on BG and 140 on MG. Minimum clearance prescribed for check rail is 44 mm for BG and 41mm for MG.
Check rail also provided either on points & crossing and level crossing having the sharpness of a degree for safety.
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