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| 1 | Earthwork in excavation in all kinds of soil with hydraulic excavator of 0.9 cum bucket capacity including cutting and loading in tippers, trimiming bottom and side slopes in accordance with requirements of lines, grades and cross sections and transporting to embankment location with all lifts and leads within airport premises as per satisfaction and direction of Engineer-In-Charge.(Note- Earth Excavated in this item shall be used for construction of Embankment in Basic strip/Runway strip or anywhere inside Airport premises as per the direction of the E-I-C and shall be paid as per measurements of relevant Item in schedule. If any quantity of Earth shall be disposed elsewhere inside Airport premises, then it shall be levelled, dressed and compacted as per the direction of the E-I-C.) |
| 2 | Filling available excavated earth in embankment or depression or over areas in accordance with requirements of slopes, lines, grades in layers not exceeding 20cm (loose) in depth (or any thickness as approved by the Engineer-in-Charge in case vibratory roller / soil compactor is used) including breaking clods, watering, consolidating each layer with power road roller 8-10 tonnes weight or vibratory roller /soil compactor of adequate capacityunder optimum moisture content condition to give at least 95% ofthe maximum laboratory dry density (standard proctor density) as per specifications complete including leveling, fine dressing to the required grade, camber and slope complete as per specifications and directions of the Engineer-in-Charge including all leads and lifts (Payment to be made for compacted quantity only). |
| 3 | Supplying and filling Moorum obtained from approved quarry in embankment or depression or over areas in layers not exceeding 20cm (loose) in depth (or any thickness as approved by the Engineer-in-Charge in case vibratory roller / soil compactor is used) including breaking clods, watering, consolidating each layer with power road roller 8-10 tonnes weight or vibratory roller / soil compactor of adequate capacityunder optimum moisture content condition to give at least 98% of the maximum laboratory dry density (modified proctor density) as per IS code 2720 (part VIII) complete including leveling, fine dressing to the required grade, camber and slope complete as perspecifications and as directed by the Engineer-in-Charge with all leads and lifts (The item includes cost of work, payment of necessary royalty, carriage of moorum upto work site for all leads and lifts involved from all sources arranged by the Contractor. Payment to be made for compacted quantity only).a) For Sub-grade / Sub-base preparation below Pavements and other areas as decided by E-I-C |
| 4 | Supplying and filling good earth / suitable earth obtained from approved quarry in embankment or depression or over areas in layers not exceeding 20cm (loose) in depth (or any thickness as approved by the Engineer-in-Charge in case vibratory roller / soil compactor is used) including breaking clods, watering, consolidating each layer with power road roller 8-10 tonnes weight or vibratory roller /soil compactor of adequate capacityunder optimum moisture content conditionto give at least 95% of the maximum laboratory dry density (standard proctor density) as per specifications complete including leveling, fine dressing to the required grade, camber and slope complete as per MORTH specifications and direction of the Engineer-in-Charge with all leads and lifts (Payment to be made for compacted quantity only). a) For Basic strip and areas other than for Pavements as decided by E-I-C |
| 5 | Supplying and filling Moorum obtained from approved source in RESA (Runway End Safety Area)including spreading with mechanical means in loose, watering if required,complete including leveling, fine dressing to the required grade, camber and slope complete including royalty as directed by the Engineer-in-Charge with all leads and lifts complete. |
| 6 | Preparation of granular sub-base by providing close graded material, conforming to specifications mixing in a mechanical mix plant at OMC, carriage of mixed material by mechanical transport to work site, for all leads and lifts, spreading in uniform layers of specified thickness with mechanical means including neatly leveling & dressing on prepared surface and compacting with vibratory power roller to achieve the desired density, complete and as per direction of Engineer-in-charge. For Grading- III Material |
| 7 | Providing, laying, spreading and compacting graded stone aggregate (size range 53 mm to 0.075 mm) to wet mix macadam (WMM) specification attached including premixing the material with water at OMC in mechanical mix plant, carriage of mixed material by mechanical transport to site, for all leads & lifts, laying in uniform layers with Machanical Paver Finisher in sub- base /base course on well prepared surface and compacting with vibratory roller of 8 to 10 tonne capacity to achieve the desired density, complete as per specifications and directions of Engineer-in-Charge.Laying using Machanical Paver Finisher |
| 8 | Construction of dry lean cement concrete sub-base over a prepared sub-grade with coarse and fine aggregate conforming to IS:383, the size of coarse aggregate not exceeding 25 mm, aggregate cement ratio not to exceed 15:1, aggregate gradation after blending to be as per specifications attached, cement content not to be less than 150 Kg/cum, optimum moisture content to be determined during trial length construction, concrete strength not to be less than 10 Mpa at 7 days, mixed in a batching plant, transported to site, for all leads & lifts, laid with a paver finisher with electronic sensor, compacting with 8-10 tonne vibratory roller, finishing and curing etc. complete as per direction of Engineerin- charge. |
| 9 | Providing and laying Pavement Quality Concrete (PQC) produced in a batching and mixing plant having a Characteristic flexural strength i.e. flexural strength of 4.1 MPa at 28 days using Ordinary Portland cement of 43/53 grade or Portland Pozzolana Cement or Portland Slag cement conforming as per relevant IS codes, to be mixed at site, with 0.5% Super plasticizer by mass of cementitious material, fine aggregate, graded stone aggregates of 40 mm nominal size in appropriate proportion as per specification and job mix formula, laid in panels as per drawings/design as approved by the Engineer-In-Charge using Slip Form Paver or Fixed form paver including anti friction layer, joint filler board, making necessary provision for expansion, dummy and construction joint including filling with Polysulphide sealant of approved make, curing and making profile, complete as per direction of Engineer-in-Charge and specifications. The item for execution shall include all operations making pavement for intended use but not limited to following: (i) Polyethylene sheet (White in color) of thickness 400 micron conforming to IS: 2508 with 6mm thick fine sand layer.(ii) Providing and laying in position for expansion joint, 25mm thick pre-cut Synthetic joint filler board of approved make conforming to IS:1838(part 3)-2011, 45 mm from top (to be removed at the time of filling of Polysulphide sealant).(iii) Mechanically cutting dummy joints 3mm wide x 1/3rd thickness of slab which is subsequently widened to 10mm for the top 25mm depth and construction joints 10mm wide x 25mm deep as per specification.(iv) Providing and laying in position Polysulphide sealant of approved make conforming to BS-5212-1990 or IS: 11433-1995 in expansion/ construction / dummy joints including rounding off edges, applying 2 coats of approved primer compatible with the brand of Polysulphide and preparing the surface and applying masking tape along the edge of joint to prevent accidental spillage of sealant on top surface and to give neat finish to the sealant and removing the masking tape after application of sealant etc. as per the details below:(a) Expansion Joints of size 25 mm wide and 10 mm deep over 30mm dia expanded closed-cell Polyethylene foam back-up/backer rod of minimum density 22 Kg/Cum, as per manufacturer’s specifications and attached sketchs(b) Construction Joints of size 10 mm wide and 10 mm deep over 12mm dia expanded closed-cell Polyethylene foam back-up/backer rod of minimum density 22 Kg/Cum, as per manufacturer’s specifications and attached sketchs(c) Dummy Joints of size 10 mm wide and 10 mm deep over 12 mm dia expanded closed-cell Polyethylene foam back-up/backer rod of minimum density 22 Kg/Cum, as per manufacturer’s specifications and attached sketchs(v) Making profile as per DGCA CAR, panel drawing showing dummy, construction, expansion joints location. Note:(i) Areas inaccessible to paving equipment shall be constructed by manual/hand guided method. Areas in which manual/hand guided methods of construction become indispensable shall be got approved by the Engineer-in-Charge in writing in advance.(ii) The quantity of cement, type of cement and super plasticizer for one Cum. of finished concrete specified are for tendering purpose only. The contractor shall quote his rates assuming quantity of OPC cement as 360 Kg/Cum or 400 Kg/cum of Portland Pozzolana Cement/ Portland Slag cement. In addition, if the actual quantity of cement & super plasticizer required as per laboratory mix design varies from the quantity assumed above, necessary cost adjustment for deviation in the quantity of cement and super plasticizer as per mix design, if any, shall be done as per the rate of cement and super plasticizer in actual supply voucher from manufacturer/authorized dealer at the time of execution. In the case of authorized distributor, the rate may be authenticated by the manufacturer. The rate of cement and super plasticizer exclusive of GST shall only be considered for payment. |
| 10 | Painting runway/taxi track/apron marking with adequate nos of coats to give uniform finish with road marking paint of superior make as approved by the Engineer-in-charge, including cleaning the surface of ail dirt, scales,oil, grease and other foreign material etc. and lining out complete.New work (Two or more coats) |
| 11 | Painting road surface marking with adequate nos of coats to give uniform finish with ready mixed road marking paint conforming to IS : 164, on bituminous/concrete surface in white/yellow shade, including cleaning the surface of all dirt, scales, oil, grease and foreign material etc. complete. New work (Two or more coats) |
| 12 | Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : (a) 1:4:8 (1 cement : 4 coarse sand (zone-III): 8 graded stone aggregate 40 mm nominal size). |
| 13 | Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : (i)1:2:4 (1 Cement : 2 coarse sand (zone-III) : 4 graded stone aggregate 40 mm nominal size). |
| 14 | Providing, hoisting and fixing up to floor five level precast reinforced cement concrete work in string courses, bands, copings, bed plates, anchor blocks, plain window sills and the like, including the cost of required centering, shuttering but excluding cost of reinforcement, with 1:1.5:3 (1 cement: 1.5 coarse sand (zone-III) derived from natural soyrces : 3 graded stone aggregate 20 mm nominal size derived from natural sources). |
| 15 | Steel reinforcement for R.C.C. work including straightening, cutting,bending, placing in position and binding all complete upto plinth level. (a) Thermo-Mechanically Treated bars of grade Fe-500D or more. |
| 16 | Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete above plinth level. Thermo-Mechanically Treated bars of grade Fe-500D or more. |
| 17 | Providing and laying in position ready mixed or site batched design mix cement concrete for reinforced cement concrete work; using coarse aggregate and fine aggregate derived from natural sources, Portland Pozzolana / Ordinary Portland /Portland Slag cement, admixtures in recommended proportions as per IS: 9103 to accelerate / retard setting of concrete, to improve durability and workability without impairing strength; including pumping of concrete to site of laying, curing, carriage for all leads; but excluding the cost of centering, shuttering, finishing and reinforcement as per direction of the engineer-in-charge; for the following grades of concrete.Note: Extra cement up to 10% of the minimum specified cement content in design mix shall be payable separately. In case the cement content in design mix is more than 110% of the specified minimum cement content, the contractor shall have discretion to either re-design the mix or bear the cost of extra cement.All works upto plinth level Concrete of M25 grade with minimum cement content of 330 kg /cumNote:The contractor shall quote his rates assuming quantity of OPC cement as 330 Kg/Cum or 370 Kg/cum of Portland Pozzolana Cement/ Portland Slag cement |
| 18 | Providing and laying in position ready mixed or site batched design mix cement concrete for reinforced cement concrete work; using coarse aggregate and fine aggregate derived from natural sources, Portland Pozzolana / Ordinary Portland /Portland Slag cement, admixtures in recommended proportions as per IS: 9103 to accelerate / retard setting of concrete, to improve durability and workability without impairing strength; including pumping of concrete to site of laying, curing, carriage for all leads; but excluding the cost of centering, shuttering, finishing and reinforcement as per direction of the engineer-in-charge; for the following grades of concrete.Note: Extra cement up to 10% of the minimum specified cement content in design mix shall be payable separately. In case the cement content in design mix is more than 110% of the specified minimum cement content, the contractor shall have discretion to either re-design the mix or bear the cost of extra cement. All works above plinth level upto floor V level Concrete of M25 grade with minimum cement content of 330 kg /cumNote:The contractor shall quote his rates assuming quantity of OPC cement as 330 Kg/Cum or 370 Kg/cum of Portland Pozzolana Cement/ Portland Slag cement |
| 19 | Providing and laying in position ready mixed or site batched design mix cement concrete for reinforced cement concrete work; using coarse aggregate and fine aggregate derived from natural sources, Portland Pozzolana / Ordinary Portland /Portland Slag cement, admixtures in recommended proportions as per IS: 9103 to accelerate / retard setting of concrete, to improve durability and workability without impairing strength; including pumping of concrete to site of laying, curing, carriage for all leads; but excluding the cost of centering, shuttering, finishing and reinforcement as per direction of the engineer-in-charge; for the following grades of concrete.Note: Extra cement up to 10% of the minimum specified cement content in design mix shall be payable separately. In case the cement content in design mix is more than 110% of the specified minimum cement content, the contractor shall have discretion to either re-design the mix or bear the cost of extra cement.All works upto plinth levelConcrete of M35 grade with minimum cement content of 370 kg /cumNote:The contractor shall quote his rates assuming quantity of OPC cement as 370 Kg/Cum or 415 Kg/cum of Portland Pozzolana Cement/ Portland Slag cement |
| 20 | Providing and laying in position ready mixed or site batched design mix cement concrete for reinforced cement concrete work; using coarse aggregate and fine aggregate derived from natural sources, Portland Pozzolana / Ordinary Portland /Portland Slag cement, admixtures in recommended proportions as per IS: 9103 to accelerate / retard setting of concrete, to improve durability and workability without impairing strength; including pumping of concrete to site of laying, curing, carriage for all leads; but excluding the cost of centering, shuttering, finishing and reinforcement as per direction of the engineer-in-charge; for the following grades of concrete.Note: Extra cement up to 10% of the minimum specified cement content in design mix shall be payable separately. In case the cement content in design mix is more than 110% of the specified minimum cement content, the contractor shall have discretion to either re-design the mix or bear the cost of extra cement.All works upto plinth level Concrete of M40 grade with minimum cement content of 390 kg/cumNote:The contractor shall quote his rates assuming quantity of OPC cement as 390 Kg/Cum or 435 Kg/cum of Portland Pozzolana Cement/ Portland Slag cement |
| 21 | Centering shuttering including struttings, propping etc. and removal of form work for all heights: (a)Foundations, footings, bases of columns, etc. for mass concrete |
| 22 | Centering shuttering including struttings, propping etc. and removal of form work for all heights: (b) Walls (any thickness) including attached pilasters,butteresses, plinth and string courses etc. |
| 23 | Centring and shuttering including strutting, propping etc. and removal of form forall heights: (c) Suspended floors, roofs, landings, balconies and access platform |
| 24 | Centring and shuttering including strutting, propping etc. and removal of form forall heights: (d) Lintels, beams, plinth beams, girders, bressumers and cantilevers |
| 25 | Centring and shuttering including strutting, propping etc. and removal of form forall heights: (e) Columns, Pillars, Piers, Abutments, Posts and Struts |
| 26 | Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in foundation and plinth in:a) Cement mortar 1:6 (1 cement : 6 coarse sand) |
| 27 | Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in superstructure above plinth level up to floor V level in all shapes and sizes in : Cement mortar 1:6 (1cement : 6 coarse sand) |
| 28 | Steel work in built up tubular (round, square or rectangular hollow tubes etc ) trusses etc., including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer, including welding and bolted with special shaped washers etc. complete. Hot finished welded type tubes |
| 29 | Providing and fixing precoated galvanised iron profile sheets (size, shape and pitch of corrugation as approved by Engineer-in-charge) 0.50 mm (+ 0.05 %) total coated thickness with zinc coating 120 grams per sqm as per IS: 277, in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns. Sheet should have protective guard film of 25 microns minimum to avoid scratches during transportation and should be supplied in single length upto 12 metre or as desired by Engineer-in-charge. The sheet shall be fixed using self drilling /self tapping screws of size (5.5x 55 mm) with EPDM seal, complete upto any pitch in horizontal/ vertical orurved surfaces, excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required. |
| 30 | 12 mm cement plaster of mix: 1:6 ( 1 cement :6 fine sand) |
| 31 | 15 mm cement plaster on the rough side of single or half brick wall of mix :1:6 (1 cement: 6 fine sand) |
| 32 | Providing and applying plaster of paris putty of 2 mm thickness over plastered surface to prepare the surface even and smooth complete. |
| 33 | Finishing walls with Premium Acrylic Smooth exterior paint with Silicone additives of required shade:New work (Two or more coats applied @ 1.43 ltr/10 sqm over and including priming coat of exterior primer applied @ 2.20 kg/10 sqm) |
| 34 | Providing and fixing Chlorinated Polyvinyl Chloride (CPVC) pipes, having thermal stability for hot & cold water supply including all CPVC plain & brass threaded fittings This includes jointing of pipes & fittings with one step CPVC solvent cement, trenching, refilling & testing of joints complete as per direction of Engineer in Charge.(i)40 mm nominal outer dia Pipes |
| 35 | Providing and fixing gun metal gate valve with C.I. wheel of approved quality (screwed end) :(i)40 mm nominal bore |
| 36 | Providing orange colour safety foot rest of minimum 6 mm thick plastic encapsulated as per IS : 10910, on 12 mm dia steel bar conforming to IS: 1786, having minimum cross section as 23 mmx25 mm and over all minimum length 263 mm and width as 165 mm with minimum 112 mm space between protruded legs having 2 mm tread on top surface by ribbing or chequering besides necessary and adequate anchoring projections on tail length on 138 mm as per standard drawing and suitable to with stand the bend test and chemical resistance test as per specifications and having manufacture’s permanent identification mark to be visible even after fixing, including fixing in manholes with 30x20x15 cm cement concrete block 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 20 mm nominal size) complete as per design. |
| 37 | Providing and laying Non Pressure NP-4 class (Heavy duty) R.C.C. pipes including collars/spigot jointed with stiff mixture of cement mortar in the proportion of 1:2 (1 cement : 2 fine sand) including testing of joints etc. completea) 450 mm dia RCC pipes. |
| 38 | Providing and laying Non Pressure NP-4 class (Heavy duty) R.C.C. pipes including collars/spigot jointed with stiff mixture of cement mortar in the proportion of 1:2 (1 cement : 2 fine sand) including testing of joints etc. completea) 600 mm dia RCC pipes. |
| 39 | Providing and laying factory made chamfered edge Cement Concrete paver blocks in footpath, parks,lawns, drive ways or light traffic parking etc, of required strength, thickness & size/ shape, made by tablevibratory method using PU mould, laid in required colour & pattern over 50mm thick compacted bed ofsand, compacting and proper embedding/laying of inter locking paver blocks into the sand bedding layerthrough vibratory compaction by using plate vibrator, filling the joints with sand and cutting of paverblocks as per required size and pattern, finishing and sweeping extra sand. complete all as per directionof Engineer-in-Charge. 80 mm thick C.C. paver block of M-30 grade with approved color design and pattern. |
| 40 | Providing and applying integral crystalline slurry of hydrophilic in nature for waterproofing treatment to the RCC structures like retaining walls of the basement, water tanks, roof slabs, podiums, reservior,sewage & water treatment plant, tunnels / subway and bridge deck etc., prepared by mixing in the ratio of 5 : 2 (5 parts integral crystalline slurry : 2 parts water) for vertical surfaces and 3 : 1 (3 parts integral crystalline slurry : 1 part water) for horizontal surfaces and applying the same from negative (internal) side with the help of synthetic fiber brush. The material shall meet the requirements as specified in ACI212-3R-2010 i.e by reducing permeability of concrete by more than 90% compared with control concrete as per DIN 1048 and resistant to 16 bar hydrostatic pressure on negative side. The crystalline slurry shall be capable of self-healing of cracks up to a width of 0.50mm. The work shall be carried out all complete as per specification and the direction of the engineer-in-charge. The product performance shall carry guarantee for 10 years against any leakage. For Vertical Surface Two Coats @ 0.70 Kg Per Sqm |
| 41 | Providing and applying integral crystalline slurry of hydrophilic in nature for waterproofing treatment to the RCC structures like retaining walls of the basement, water tanks, roof slabs, podiums, reservior,sewage & water treatment plant, tunnels / subway and bridge deck etc., prepared by mixing in the ratio of 5 : 2 (5 parts integral crystalline slurry : 2 parts water) for vertical surfaces and 3 : 1 (3 parts integral crystalline slurry : 1 part water) for horizontal surfaces and applying the same from negative (internal) side with the help of synthetic fiber brush. The material shall meet the requirements as specified in ACI212-3R-2010 i.e by reducing permeability of concrete by more than 90% compared with control concrete as per DIN 1048 and resistant to 16 bar hydrostatic pressure on negative side. The crystalline slurry shall be capable of self-healing of cracks up to a width of 0.50mm. The work shall be carried out all complete as per specification and the direction of the engineer-in-charge. The product performance shall carry guarantee for 10 years against any leakage.For Horizontal Surface One Coat @1.10 Kg Per Sqm. |
| 42 | Boring/drilling bore well of required dia for casing/ strainer pipe, by suitable method prescribed in IS: 2800 (part I), including collecting samples from different strata, preparing and submitting strata chart/bore log, including hire & running charges of all equipments, tools, plants & machineries required for the job, all complete as per direction of Engineer –in-charge, upto 90 metre depth below ground level. All types of soil 300 mm dia. |
| 43 | Supplying, assembling, lowering and fixing in vertical position in bore well, unplasticized PVC medium well casing (CM) pipe of required dia, conforming to IS: 12818, including required hire and labour charges, fittings & accessories etc. all complete, for all depths, as per direction of Engineer –in-charge.200 mm nominal size dia. |
| 44 | Supplying, assembling, lowering and fixing in vertical position in bore well unplasticized PVC medium well screen (RMS) pipes with ribs, conforming to IS: 12818, including hire & labour charges, fittings & accessories etc. all complete, for all depths, as per direction of Engineer-in-charge. 200 mm nominal size dia. |
| 45 | Supplying, filling, spreading & leveling stone boulders of size range 5 cm to 20 cm, in recharge pit, in the required thickness, for all leads & lifts, all complete as per direction of Engineer-in-charge. |
| 46 | Supplying, filling, spreading & leveling gravels of size range 5 mm to 10 mm, in the recharge pit, over the existing layer of boulders, in required thickness, for all leads & lifts, all complete as per direction of Engineer-in-charge. |
| 47 | Supplying, filling, spreading & leveling coarse sand of size range 1.5 mm to 2 mm in recharge pit, in required thickness over gravel layer, for all leads & lifts, all complete as per direction of Engineer –in-charge. |
| 48 | Gravel packing in tubewell construction in accordance with IS: 4097, including providing gravel fine/ medium/ coarse, in required grading & sizes as per actual requirement, all complete as per direction of Engineer-in-charge. |
| 49 | Providing and fixing Bail plug/ Bottom plug of required dia to the bottom of pipe assembly of tubewell as per IS:2800 (part I).200 mm dia |
| 50 | Providing and placing in position 100 mm thick factory made machine batched & machine mixed Precast RCC Rectangular Covers on drains of footpath of various sizes, of M-25 grade cement concrete for RCC work, including cost of centering, shuttering, reinforcement of 8 mm dia TMT bars of Fe 500 grade @ maximum 100mm c/c on both ways , neat cement punning on finished surface, properly encased on all edges with 1.6 mm thick , 100 mm wide MS sheet duly painted over priming coat , reinforcement to be welded at edges with MS sheet and providing 2 Nos. 12 mm dia bar for hooks etc i/c cost of cartage, allleads & lift, handling at site etc. all complete as per direction of Engineer-in-Charge. |
| 51 | Providing and fixing suitable size threaded mild steel cap or spot welded plate to the top of bore well housing/ casing pipe, removable as per requirement, all complete for borewell of: 200 mm dia |
| 52 | Providing & applying a coat of residual petroleum bitumen of grade of VG-10of approved quality using 1.7 kg per square meter on damp prrof course after cleaning the surface with brushes and finally with a piece of cloth lightly soaked in kerosene oil. |
| 53 | Steel work welded in built up sections/ framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer using structural steel etc. as required. In gratings, frames, guard bar, ladder, railings, brackets, gates and similar works |
| 54 | Supply of 450 mm high, 330 mm outer dia, 220 mm dia top opening isolating transformer housing box, made of 10 mm thick (nominal) except top which is 15 mm thick (nominal) CI mould of foundry grade pig iron confirming to IS-224, suitable for installation of elevated air-field light fittings with 6 Nos. M-10 tapped holes at hole centre of 260 mm including 03 nos. ending holes for cable entry & earth pipe holes (02 nos. diametrically & 01 no. perpendicularly) suitable to receive 50 mm GI/HDPE pipe & 15 mm dia. GI earth pipe, SS earth bolts and nuts, washes, drain holes and painting etc. complete as required. |
| 55 | Installation of Cast iron isolating transfer housing box of size 330 mm dia and 450 mm deep as per specification, including excavation of surface, cement concrete all round, providing 250 mm long 15 mm dia \"B\" class GI pipe in the bottom surface for drainage of water, cutting & threading of pipe, adjustment of housingwiththedoliteetc,refillingtheside surface, sloping andmakinggoodthesameas original as required. |
| 56 | Fabrication, supply &installation of MS transformer housing box of size 750mm x 300 mm x 400 mm ( H) made out 6 mm thick MS sheet and top cover 10 mm thick MS sheet with three compartment as per drawing and all inserts should be suitable for M-10 size bolt shall be of SS including painting of box with one coat of primer & two coats of black enamel paint and installation using cement concrete 1:2:4, 100 mm all around the box and pedestal of 0.30m & 0.10m thick all around the box making suitable slope to level of runway all around the housing box and painting, lettering, numbering etc. as required . |
| 57 | Providing, laying and fixing following size G.I. pipe (medium class) in GSB/WMM for laying of primary / secondaray cables from fitting to housing boxes complete with G.I. fitting accessories i.e. elbows, sockets, checknuts, threading and 4mm wire SS wire for cable pulling etc including cutting & re-fillingcomplete etc as required. 50 Mm Dia. |
| 58 | Providing, laying and fixing following size G.I. pipe (medium class) in GSB/WMM for laying of primary / secondaray cables from fitting to housing boxes complete with G.I. fitting accessories i.e. elbows, sockets, checknuts, threading and 4mm wire SS wire for cable pulling etc including cutting & re-fillingcomplete etc as required. 32 Mm Dia. |
