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| 1 | Maintenance Works in Ball Mill during ATA 2026-Oil Seal/Pinion Inspection/Alignment |
| 2 | Maintenance Works in Ball Mill in PAP During ATA 2026:Work Involves: Collection of required materials from store, tools and tackels and make required site arrangements. After getting clearance, decouple the motor and gearbox. Unbolt the motor from the foundation. Lift and move the motor from the foundation as per site instructions. Any dismantling of platform/providing temporary support structures etc. if required shall be done as per site requirement. Dismantle the coupling from the gearbox high speed shaft. Decouple the gearbox slow speed shaft and pinion. Unbolt the gearbox bearing side covers, gearbox top cover and shift to a safe location. Lift the high speed shaft from the gearbox. Remove the damaged oil seal. Inspect the high speed shaft for any wear. Transport new shaft if required from the store. Provide new oil seal as per instructions. Mount back the high speed shaft. Check the float of the bearings of all the shafts, provide shims as per instructions. Mount back the gearbox cover and tighten the bolts. Check the final float is within the limits. Mount back the gearbox high speed side coupling half. Erect back the motor to the foundation. Dismanlte the pinion plummer block top covers. Provide assistance for bearing inspection/bearing replacement as per site instructions. Mount back the plummer block covers and tighten the cover bolts. Alignment/meshing of pinion and girth gear shall be checked. Foundation bolts of pinion shall be loosened/dismantled and mounted back/tightened as per requirement. Alignment of pinion and gearbox, gear box and motor shall be done as per site instructions. After alignment couple the pinion,motor and gearbox. All foundation bolts of gearbox and motor shall be tightend and coupling guard shall be provided. After completion of work,take trial run. Temporary structures shall be removed and site shall be cleared. Dismantled platforms shall be welded back. |
| 3 | Bearing Replacement of Ball Mill Drive PinionMake necessary site arrangements for the work. De couple gearbox and pinion. Dismantle the pinion foundation bolts. Lift and move the pinion assembly to the work shop. Dismantle the pinion side coupling. Unbolt andn remove the plummer blocks. Unmount the bearings from pinion shaft. Properly clean the shaft and inspect the shaft for any damage. Plummer blocks shall be cleaned and inspected for any damage including interference check. New plummer blocks shall be provided if required. Scope of transportation of plummer blocks from store is in this scope. Mount new bearings on the shaft and properly tighten them. Mount the plummer blocks.Mount back the coupling. Transport the pinion assesmbly to ball mill and erect it on the foundation. Mount the foundation bolts.Check and correct the meshing of pinion and girth gear. After correcting the meshing, full tighten the pinion foundation bolts.Align the pinion and gearbox. After alignment,couple the pinion and gearbox. Gearbox foundation bolts shall be full tightened. Gearbox motor alignment shall be checked. Motor shifting for alignment if required shall be done.After completion of work,clear the site and remove the set ups made for the work. (2 nos bearings have to be replaced).This actvity need to be done if the bearings of drive pinion found defective during inspection against activity 1. |
| 4 | Supply/unloading and Handing over of 650/1100V, Aluminium conductor PVC/XLPE insulated, armoured PVC outer sheathed cable of size 3.5 cores x 400 sq.mm. The cable shall be supplied at Q10 installation of FACT at Willingdon Island and must be unloaded as per the instruction of engineer-in-charge. Vechicles/loading and unloading shall be in contractors scope |
| 5 | Supply/unloading and Handing over of 650/1100V, Aluminium conductor PVC/XLPE insulated, armoured PVC outer sheathed cable of size 3.5 cores x 50 sq.mm. The cable shall be supplied at Q10 installation of FACT at Willingdon Island and must be unloaded as per the instruction of engineer-in-charge. Vechicles/loading and unloading shall be in contractors scope |
| 6 | Supply/unloading and Handing over of 650/1100V, Aluminium conductor PVC/XLPE insulated, armoured PVC outer sheathed cable of size 3 cores x 50 sq.mm. The cable shall be supplied at Q10 installation of FACT at Willingdon Island and must be unloaded as per the instruction of engineer-in-charge. Vechicles/loading and unloading shall be in contractors scope |
| 7 | Supply/unloading and Handing over of 650/1100V, Aluminium conductor PVC/XLPE insulated, armoured PVC outer sheathed cable of size 3 cores x 35 sq.mm. The cable shall be supplied at Q10 installation of FACT at Willingdon Island and must be unloaded as per the instruction of engineer-in-charge. Vechicles/loading and unloading shall be in contractors scope |
| 8 | Supply/unloading and Handing over of 650/1100V, Aluminium unarmoured, earthing cable of size 1 core x 70 sq.mm. The cable shall be supplied at Q10 installation of FACT at Willingdon Island and must be unloaded as per the instruction of engineer-in-charge. Vechicles/loading and unloading shall be in contractors scope |
| 9 | Supply/unloading and Handing over of 650/1100V, Aluminium unarmoured, earthing cable of size 1 core x 35 sq.mm. The cable shall be supplied at Q10 installation of FACT at Willingdon Island and must be unloaded as per the instruction of engineer-in-charge. Vechicles/loading and unloading shall be in contractors scope |
| 10 | Supply/unloading and Handing over of 650/1100V, Copper conductor PVC insulated, armoured PVC outer sheathed cable of size 5 cores x 2.5 sq.mm. The cable shall be supplied at Q10 installation of FACT at Willingdon Island and must be unloaded as per the instruction of engineer-in-charge. Vechicles/loading and unloading shall be in contractors scope |
| 11 | Supply of single compression nickel plated brass cable glands suitable for 650/1100V cable of size 3.5 cores x 400 sq.mm., aluminium conductor, PVC/XLPE insulated, armoured, PVC outer sheathed. The bidder shall varify the entry thread, type of enclosure etc, to find out the actual type of gland required. |
| 12 | Supply of single compression nickel plated brass cable glands suitable for 650/1100V cable of size 3.5 cores x 185 sq.mm., aluminium conductor, PVC/XLPE insulated, armoured, PVC outer sheathed. The bidder shall varify the entry thread, type of enclosure etc, to find out the actual type of gland required. |
| 13 | Supply of single compression nickel plated brass cable glands suitable for 650/1100V cable of size 3.5 cores x 50 sq.mm., aluminium conductor, PVC/XLPE insulated, armoured, PVC outer sheathed. The bidder shall varify the entry thread, type of enclosure etc, to find out the actual type of gland required. |
| 14 | Supply of single compression nickel plated brass cable glands suitable for 650/1100V cable of size 3 cores x 50 sq.mm., aluminium conductor, PVC/XLPE insulated, armoured, PVC outer sheathed. The bidder shall varify the entry thread, type of enclosure etc, to find out the actual type of gland required. |
| 15 | Supply of single compression nickel plated brass cable glands suitable for 650/1100V cable of size 3 cores x 35 sq.mm., aluminium conductor, PVC/XLPE insulated, armoured, PVC outer sheathed. The bidder shall varify the entry thread, type of enclosure etc, to find out the actual type of gland required. |
| 16 | Supply of single compression nickel plated brass cable glands suitable for 650/1100V cable of size 5 cores x 2.5 sq.mm., copper conductor, PVC/XLPE insulated, armoured, PVC outer sheathed. The bidder shall varify the entry thread, type of enclosure etc, to find out the actual type of gland required. |
| 17 | Supply of heat srinkable cable jointing kit for armoured cable of size 3.5 cores x 300 sq.mm. |
| 18 | Supply of heat srinkable cable jointing kit for armoured cable of size 3 cores x 185 sq.mm. |
| 19 | Supply of heat srinkable cable jointing kit for armoured cable of size 3.5 cores x 120 sq.mm. |
| 20 | Supply of cable tags, aluminium or SS for cables (cable No. pre-fix will be given at the time of erection) |
| 21 | Supply and Installtion of UG LT Cable Route Marker as per engineer in charge instructions for cable identification |
| 22 | Laying of 650/1100V, Aluminium conductor PVC/XLPE insulated, armoured, PVC outer sheathed cable of size 3.5 cores x 400 sq.mm. through the existing cable tray at Q10 substation 25 mts / excavated trench 85 Mts and cable tray at phosphorc acid dic wall (35 Mts) as per the instruction of engineer-in-charge. The scope of work shall also include laying, dressing, fixing on cable trays/racks/risers/walls/columns clamping, tagging, tying, minor civil work etc. The rates quoted shall include supply of all accessories required such as, cable clamps, bolts, nuts, washers, cable tags, nylon ropes, etc. |
| 23 | Laying of 650/1100V, Aluminium conductor PVC/XLPE insulated, armoured, PVC outer sheathed cable of size 3/3.5 x 50 sq.mm. through the existing and newly fabricated cable tray at various locations in Q10 berth installations of FACT, as per the instruction of engineer-in-charge. The scope of work shall also include laying, dressing, fixing on cable trays /racks /risers /walls /columns clamping, tagging, tying, minor civil work etc. The rates quoted shall include supply of all accessories required such as, cable clamps, bolts, nuts, washers, cable tags, nylon ropes, etc. |
| 24 | Laying of 650/1100V, Aluminium conductor PVC/XLPE insulated, armoured, PVC outer sheathed cable of size 3 x 35 sq.mm. through the newly fabricated cable tray at phosphorc acid dic wall , as per the instruction of engineer-in-charge. The scope of work shall also include laying, dressing, fixing on cable trays /racks /risers /walls /columns clamping, tagging, tying, minor civil work etc. The rates quoted shall include supply of all accessories required such as, cable clamps, bolts, nuts, washers, cable tags, nylon ropes, etc. |
| 25 | Laying of 1 core x 70 sq.mm. (2 Run x 110 Meter) unarmoured, earthing cable through the existing cable tray at Q10 substation 25 mts / excavated trench 85 Mts and cable tray at phosphorc acid dic wall (35 Meters) as per the instruction of engineer-in-charge. The scope of work shall also include laying, dressing, fixing on cable trays/racks/risers/walls/columns clamping, tagging, tying, minor civil work etc. The rates quoted shall include supply of all accessories required such as, cable clamps, bolts, nuts, washers, cable tags, nylon ropes, etc. |
| 26 | Laying of 1 core x 35 sq.mm. unarmoured, earthing cable through the newly fabricated cable tray at phosphorc acid dic wall , as per the instruction of engineer-in-charge. The scope of work shall also include laying, dressing, fixing on cable trays /racks /risers /walls /columns clamping, tagging, tying, minor civil work etc. The rates quoted shall include supply of all accessories required such as, cable clamps, bolts, nuts, washers, cable tags, nylon ropes, etc. |
| 27 | Laying of 650/1100V, Aluminium conductor PVC/XLPE insulated, armoured, PVC outer sheathed cable of size 5 cores x 2.5 sqmm armoured coper cable (4 run x 35 Meter) through the newly fabricated cable tray at phosphorc acid dic wall, as per the instruction of engineer-in-charge. The scope of work shall also include laying, dressing, fixing on cable trays /racks /risers /walls /columns clamping, tagging, tying, minor civil work etc. The rates quoted shall include supply of all accessories required such as, cable clamps, bolts, nuts, washers, cable tags, nylon ropes, etc. |
| 28 | Rerouting and Laying of 650/1100V, Aluminium conductor PVC/XLPE insulated, armoured, PVC outer sheathed cable of size 3.5 x 185 sq.mm. through the excisting cable tray at phosphorc acid dic wall , as per the instruction of engineer-in-charge. The scope of work shall also include laying, dressing, fixing on cable trays /racks /risers /walls /columns clamping, tagging, tying, minor civil work etc. The rates quoted shall include supply of all accessories required such as, cable clamps, bolts, nuts, washers, cable tags, nylon ropes, etc. |
| 29 | Glanding and Termination of cable of size 3.5 core x 400 sq.mm. at PAT MCC Incomer and substation out going with suitable lugs and crimping. |
| 30 | Glanding and Termination of cable of size 3.5 core x 185 sq.mm. at PAT MCC Outgoing with suitable lugs and crimping. |
| 31 | Glanding and Termination of cables of size 3.5 core x 50 sq.mm. at various locations in Q10 berth installations of FACT with suitable lugs and crimping. |
| 32 | Glanding and Termination of cables of size 3 core x 50 sq.mm. at PAT to motor terminal (30 KW Motor, 2 Nos.) with suitable lugs and crimping. |
| 33 | Glanding and Termination of cables of size 3 core x 35 sq.mm. at PAT to motor terminal (15 KW Motor, 2 Nos.) with suitable lugs and crimping. |
| 34 | Termination of earthing cable of size 1 core x 70 sq.mm. at PAT MCC and substation with suitable lugs and crimping. |
| 35 | Termination of earthing cable of size 1 core x 35 sq.mm. at PAT MCC to motor terminals at acid P2O5 pump house with suitable lugs and crimping. |
| 36 | Glanding and Termination of cables of size 5 core x 2.5 sq.mm. at PAT MCC module to motor push button station with suitable lugs and crimping. |
| 37 | Jointing of armoured cable of size 3.5 cores x 300 sq.mm. using heat srinkable cable jointing kit |
| 38 | Jointing of armoured cable of size 3 cores x 185 sq.mm. using heat srinkable cable jointing kit |
| 39 | Jointing of armoured cable of size 3.5 cores x 120 sq.mm. using heat srinkable cable jointing kit |
| 40 | Excavation and back filling of cable trench for laying power/ earthing cables/ cable trench of not less than 300 mm width and 600 mm depth (0.6 meter depth from ground level) |
| 41 | Shifting of existing PAT MCC to temporary shed. The scope of work includes dismandling MCC and all incoming/outgoing cables and shifting to nearest temporary shed./reassembling/fixing the MCC and providing 1 number of incoming cable of size 3.5 cores x 400 sq.mm. and 5 numbers of out going power cables (2 no.s of 3 cores x 50 sq.mm., 2 no.s of 3 cores x 35 sq.mm., 1 no.s of 3.5 cores x 185 sq.mm.) and 4 numbers of control cables (5 cores x 2.5 sq.mm.) in newly fabricated cable tray/trench with suitable single compression gland. Please Enable Macros to View BoQ information |
