South Central Railway Tender

Laying different type of cables in the trench. Termination covered elsewhere.

Supply & laying of DWC split pipe of 120/103 mm dia, 2meter long in already dug cable trenches has per Drawing No.SK.9/11 .The unit of RMT means two split pipes of 1 Mtr each.

Supply and fixing of MS-'C' channel of size 100 mmx 50 mm x 1200 mm with suitable 7 clamps as per drawing No. S&T/ RE/78/2/76 and fitting to GI pipe 65/50mm (to be supplied by Railways) of spec. IS-1239/ Part-1/ Light with couplings and with suitable clamps on Girder Bridges without drilling holes in the girders. GI Pipes are to be drilled with 6 holes of 1/4" dia. per metres around the pipe in zig zag manner before laying the 6 metres pipe.

Installation of single earth(maintenance free) including the following:- welding and fixing of copper tape (used as bus bar) welding of cadmium bronze cable to copper plate using material supplied vide item no. 1,2 of SPD of Sch-A. All the material supplied for mounting of copper tape, exothermic weld materials, tools and fixtures for welding copper tapes shall be arranged by contractor. a) Digging /Auguring/Boring of single earth pit of 100mm to 125 mm dia to the depth of approx. 2.8 meter. b) Insertion of 3.0 meter electrode and penetrating it at least 0.2 meter by pushing gently with sledge hammer where the natural soil is assumed. c) Filling of earth pit with earth enhancement compound (EEC) in slurry from and backfilling. d) Carrying out exothermic weld 8 connection on single earth electrode to a copper tape of 150X25X6mm. e) Carrying out exothermic weld connection on the copper tape of 150X25X6mm on earth electrode for connecting two 35 Sq mm cables for redundancy. f) The exothermic welding material for bonding the earth system shall be procured from RDSO approved firms, which includes graphite moulds, clamps, weld metal powders. g) Digging a trench to a depth of at least 0 .5 Mtr. and run the two 35 Sq mm earth conductor (procured against supply item) from earth pit to MEEB. h) Routing and termination of two 35 sq mm earth conductors in trench from earth pit to 300X25X6mm MEEB, which is to be fixed inside the equipment room with two insulation studs. i) 300X300X300 mm (inside dimension) concrete earth pit with a concrete lid, approx 50mm thick with pulling hooks, shall be provided to cover the pit. Back side of the cover will be painted in black and date of the testing and earth resistance value shall be written.

Supply and fixing of different sizes of PVC casing /Pipes as required by Railway at site by fixing /clamping to the wall for indoor wiring purposes. All the material required for fixing PVC casing/Pipes are to be supplied by contractor.

Supply and Installation of OFC joint enclosure and splicing of Optic fibre cable (24 fibres) and testing as per technical specification No. GR OJC-2/02 Sept 2003. Supply of Splice 11 Enclosure (24 fibre) shall be of TVS make Part No.1500-LI8X-XX or similar as per Board specification of TEC.& as per RDSO/SPN/TC/68/2014 Revision 1.0 amd 1 or latest . All materials including Fusion splicing machine used for fibre splicing and, OTDR for testing and other testing materials if any shall be arranged by the contractor.

Excavation of jointing pit and provision of RCC/FRP joint / Loop chambers of 90 Cms. Inner dia 60 Cms depth and 3mm thickness with two pieces of top cover with hooks each and bottom 12 cover with hole for drainage and cable entry as per Drg. No. RAILTEL/SR/OFC/ 2009/12 and as directed by Engineer to be provided at every joint location and at every Kilometre loop etc., The chamber shall be filled with sand mixed with ariti-stermic power, back filling and ramming of trench after HDPE duct laying, splicing and commissioning.

Supply & Laying of G.I Pipes of 50 mm diameter with medium and threaded collar & coupler, quality to specification IS.1239 (part-I) 1990 and galvanised to specification IS 4736-1986.

Supply & Laying of G.I Pipes of 100 mm diameter with medium and threaded collar & coupler, quality to specification IS.1239 (part-I) 1990 and galvanised to specification IS 4736-1986. 15

Strengthening the foundation of EC Post

Painting and numbering of EC post with two coats of two colours of one feet each band with enamel paint of approved quality make like Asian, Nicholson and Berger and as directed by engineer in charge at site.

Supply and installation of 230 volts AC / 48 volts, 25 Amps DC (2 1 configuration) SMPS battery charger as per RDSO spec. RDSO/SPN/TC/23/99 (Ver-4) Amdt.-1 or latest.

Supply and installation of 48 volts 200 AH maintenance free VRLA battery in charged condition as per RDSO specification lRS:S-93/96(B) (Amd. 1 ) or latest. (2 volts 200 AH - 24 Nos. each set).

Digging of cable pit for the required depth and width to locate the cable at a specific location shown by the Railway Engineer at site to attend the cable fault and refilling the same after attending the cable fault by the department.

Supply, painting and fixing of gland plate for Location box as per site requirement Full Location Box

Supply, painting and fixing of gland plate for Location box as per site requirement Half Location Box

Applying two coats of paint of approved colour with paint manufactured by Asian/British! Johnson & Nicholson as instructed by Engineer In charge.

Basement plastering of Full/Half location box. All the required men and materials are to be arranged by the contractor.

Fabrication, supply and erection of conventional Earth to Siqnallinq/Telecom equipments -Excavation of earth and No. 6652 providing earth pipe of size 50mm dia. 3.5mm thick 2.0 m. long G.I. pipe of heavy quality with masonry tub constructed around at earth locations as 29 specified by site Engineer. Alternate layers of 30kgs-charcoal and 30kgs-common salt to be filled in the pit while closing. The pipe perforation etc., to be carried out as per drawing No. SK 10/10. The earth pipe to be connected to the function with cable as supplied by Railways. The reading should be painted on the masonry tub. The masonry tub of 300 mm x 300 mm x 300mm (along with Kundi) should be covered with cement slab.

"Supply, transporting and installation of Concrete (RCC) Route Indicators at intervals 30 of 50 meters as per instructions of engineer in charge as per drawing no. SK 12/10.They should be of standard RCC with letters ""SCR S&T cable"" as per type of cable laid to drawing. In case of telecom quad cable joint locations it shall be painted with GREEN and ORANGE colour for normal indication of cable path."

Installation, Testing and Commissioning of Double Faced Coach Guidance Display 1 Boards in Covered area with complete accessories as per RDSO Specification No. RDSO Specification No.RDSO/ SPN/TC/ 108/2019 Rev.0.0 with Amdt -1 or latest

"Installation & Commissioning of double face coach guidance display boards/ Speaker in open area. It includes Supply,hanging arrangement of coach indication board/speaker along with 2 hood [Cover shed] in open space, [without shed feet'slong [1:3:6] I area] 100 mmmm dia [OD] & 15 G.I. to be erected with concrete foundation of 3 Feet deep from platform level and on the pipe, an angle to be fixed on G.I. pipe as per site condition. Contractor to supply all required materials with G.I. pipe & G.I. sheet of 2'x3' which should be placed on the top of the board in open space as per approval of site engineer with angle fastening and crow guard.[supply of G.I. pipe includedin this]"

"Supply of power cable 3 core, 2.5 sq mm, multi strand cable as per IS 694:1990 reaffirmed 1995 or latest suitable for Railway electrification area, shall beof reputed make like Havells,Delton, LAPP, Finolex, or superior."

Supply of 5 pair color coded Datacable (0.5 Sq.mm,overaldiameter 13.1 mm) as per 4 theSpecifications of BIS 5308 ,Part1,Type-3 ( Armoured - collectivelyscreened or individually &collectively screened. PEinsulated,PVC bedded, lead alloyoversheath, single wire armouredand PVC oversheathed.)

Releasing of EC posts/CIB poles/Rail posts. Work involves grouting of posts/poles by 5 digging/cutting to the reqd depth etc. After releasing stacking neatly at a centralized place near the site of work as shown by the in charge, and handing over the same to the Stores depot as per the inventory made

Releasing of the Bridge Channels without causing damage, stacking neatly at a centralised place near the site of work as shown by the in charge, and handing over the same to the Stores depot as per the inventory made.

Protection arrangements for cables at Bridge approaches. It involves digging of pit, supply of GI pipe 100 mm dia of class B with couplers, cutting of GI pipe and running of cables through pipe. 8 mm dia steel rod bent in 'U' shape are to be provided over the pipe and covering pipe 8 with one RCC layer and with earth over it. The RCC should be of 1:2:4 ration. with 40 Kgs steel,. the quantity of RCC will be 0.5 Cum. The GI pipe length will be 5 meters and the pipe are to be bent as required at site. (all the material and labour should be arranged and used by the contractor. Necessary centering arrangements for casting is to be done. At bridge ends couplers are to be used for connecting with the existing pipe.)