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Guidelines for Handling of Rails November 2006. Railway board’s letter No.Track/21/98/0908/7 dated 30-10-2006. 1. Protection of straightness. Avoid Heavy static loading and sudden impact Single point slinging End drop and flange overlap or crossing of rails
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Guidelines for Handling of RailsNovember 2006 Railway board’s letter No.Track/21/98/0908/7 dated 30-10-2006
1. Protection of straightness • Avoid • Heavy static loading and sudden impact • Single point slinging • End drop and flange overlap or crossing of rails • Localized point or line contract when stacking
Contd.. • Ensure • Two point slinging for rails up to 13m length. Increase slinging point at the rate of 1 per 6.5m. • Rails are kept horizontal and straight as far as possible while lifting, carrying or stacking. • Provide suitable dunnage/spacer to protect rail against point contract
Contd.. • Rails of same length are stacked on a firm level base providing uniform support. Successive layers may be of the same or decreasing width for stacking of unequal length of rails. • Subsequent layers should be separated with uniformly placed suitable spacers or dunnage in vertical alignment with the base support. • Rails ends are protected.
2. Protection of Rail Surface • Avoid • Impact or abrasion of rails and rail bundles against structures, buildings, ships, hatches, wagons, vehicles, etc. • Crossing or flange overlap while stacking or making rail bundles. Suitable spacers to be used while making rail bundles. • Any rail support, handling or clamping device and rail pinch rollers which apply localized or point contact to the rail.
Contd… • Ensure • Where conventional slings are employed, use of fabric, e.g. polypropylene slings/sleeves is recommended. As an alternative, if flat link chains are used, these should be fitted with fabric sleeves. • Rails should be protected against bruising, notching or scoring of surface • Wherever possible, the profile of rail support, handling or clamping device and rail pinch rollers should be contoured to rail profile • Use of round-link chain sling. Ideally, lift the rails by using electro-magnetic lifting devices
3. Prevention of Metallurgical Damage • Avoid • All heating, flame cutting, welding and spot welding during rail handling or transit • Ensure • Protection of rail from electric arc from adjacent cables or molten metal splashes from nearby welding operations
4. Protection from contract with injurious substances • Avoid • Contract with injurious substances such as acids, alkalis, salts, fertilizers, sulphates, chlorides and nitrates • Ensure • Rail stockpiles should be built on a well drained base as per as per Drawing No.RDSO/T-62-6219
5. Minimizing Danger to Personnel • Avoid • Standing under suspended rails • Sudden dropping or impact of rails • Bundle strapping for lifting, slinging or handling of rails • Contract with rails
Contd.. • Ensure • Steel toe-capped protective footwear are used • Distinct coloured helmets and clothing are used for ease of identification and location of personnel while working with machine or crane • Effective protective gloves and clothings to reduce risk of skin abrasions and lacerations and extremes of temperature • Safe working, in the vicinity of electrical conductors and wiring
6. Stacking • Avoid • Overlapping of rail flanges • Crossing of layers when dunnage is used • Shorter rail should be placed in upper layers so that each successive layer is of some or decreasing width • Good vertical alignment of dunnage or spacers in the completed stack should be done by placing them in identical positions along the rail length • Use of suitable rail handling equipment, such as electromagnetic lifting devices, rail grips etc.
7. Handling of Rails in Flash Butt Welding Plants & Production Units • Avoid • Lifting rails which do not have proper lifting points & cause overhand more than 3.25m
Contd.. • Ensure • Rails are handled by magnetic lifting device. The magnets should be suspended a lifting spreader beam ensuring lifting point at every 6.5 meter and overhang less than 3.25 meter. In case, magnetic lifting devices for rails cannot be provided in Flash Butt Plans, all handling of rails should be done with synchronized electric hoists and spreader beams.
8. Handling of of rails at track renewal sites in open line & Construction site (Single Rails) • Ensure • While unloading single rails from BFRs/BRHs provide a ramp of two unserviceable hardwood crossing sleepers or suitable timber piece kept at 6.5m apart, one end resting on the BFR/BRH and the other end held firmly on the ground.
Single rails Contd… 2) Fasten rails by ‘J’ type hooks at two places 6.5m apart, held properly with hardwood packing to avoid bruising of rails. 3) The hooks should beheld with nylon ropes • Rails are made to slide over the sleeper one by one. • Overhang does not increase beyond 3.25m each side
Single Rails Contd… • On reaching ground, rail is to be lifted by rail-dolly or tongs to clear the end of ramp. Rails can later be carried with the ………. of rail dollies to sites, wherever required, without causing any damage to them. • Single rails can be unloaded at site by road crane also provide provisions of lifting points at every 6.5 meter and restriction on overhand not to increase beyond 3.25m are met and no infringement endangering safety of moving train on adjacent track is caused.
Three Rail Panel Contd… • Ensure • Unloading of rail panels in running lines, by providing a ramp of adequate number of unserviceable hardwood crossing sleepers or timber piece, kept 6.5m apart. • Unloading these panels preferable on the nearest railway station in loop line following the procedure mentioned above and later on carried out with the help of rail dollies to the site wherever required, without causing any damage to them.
Long Rail Panel Contd… • Ensure • Panels unloaded should be kept in upright (head up) in straight alignment. • On long bridges, panels are to be supported on bridge timbers and not allowed to sa over the opening,
9. Precautions for Handling of Rails in Electrified areas • Avoid • Work above or within a distance of 2m from the live OHE without ‘permit-to work”. • Touching fallen wires unless power is switched-off and the wire or wires suitably earthed.
Contd… • Ensure • As far as possible closed wagons shall be used for material trains. In case open or hopper wagons are used, loading and unloading of such wagons in electrified tracks shall be done under the supervision of an Engineering Official not below the rank of a Permanent Way Mistry who shall personally ensure that no tool or any part of body of worker comes within the “damage zone” I.e. within 2m of the OHE. • Rails do not touch each other to form a continuous metallic mast of length grater than 300m
10. Handling of rails at Ports • Ensure • Availability of proper facilities for handling of Rails at port as required by these guidelines. • Magnetic lifting device with suitable spreader beams should preferably be use
Contd… • In case, it is difficult to provide magnetic lifting device for lifting device for lifting of rails, electric hoists or cranes with suitable spreader beams may be used so as to lift the rails in accordance with the basic principles. • Provisions in the contract document procuring for rails to provide for carrying out modifications in the existing facilities available at ports or to develop suitable method for unloading and handling of rails so as to avoid any damage.