Military Engineer Services-MES has published Tender For Repair/ Maint Of Isolation Transformers, Voltage Stabilizers And Misc Lt Switch Gears At Jaffarpore, Kancharapara, Barasat And Los Dum Dum Under Ge (Af) Barrackpore. Submission Date for this Tender is 03-08-2023. Switch Gear Tenders in barrackpore West Bengal. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 19-Jul-2023 | Bid Auto Extn Corrigendum | Bid Auto Extn Corrigendum | 26-07-2023 |
| 2 | 26-Jul-2023 | Bid Auto Extn Corrigendum | Bid Auto Extn Corrigendum | 31-07-2023 |
| 3 | 31-Jul-2023 | Bid Auto Extn Corrigendum | Bid Auto Extn Corrigendum | 03-08-2023 |
| Sl. No. | Item Description |
| 1 | Material and labour for open the top cover of isolation transformer of capacity 75KVA to 100 KVA, after disconnecting LT connections, drain out of transformer oil and preserve it in container, replacement of all gasket for prevention of leaking, replacement of broken HT/LT bushes and re-assemble as per existing and refixing all connection and testing on load complete all as specified and directed. Note : Cost of LT bushes to be paid separately under respective items as supply only. |
| 2 | Supply only LT brass spindle factory made M12 type complete with gasket set as per existing model of transformer complete all as specified and directed. |
| 3 | Material and labour for de-hydration of transformer oil of servo controlled voltage stabilizer and isolation transformer of capacity 50KVA to 200KVA after drain out of old existing oil completely from the transformer and collecting in a container, heating up of transformer oil with suitable method, testing of di-electric strength by using necessary instrument and proving the di-electric strength not less than 40MV in 2.5mm gap and testing for strength including recording results all as specifed and directed. Note:- The contractor shall submit dielectric strength report after dehydration of each transformer |
| 4 | Supply for topping up of new transformer oil in servo controlled voltage stabilizer and isolation transformer of existing type having di-electric strength not less than 60MV at 2.5mm gap complete all as specified and directed. Make : Power Oil / Power link/ Svita power oil. Note:- Transformer oil shall be brought in manufacturer sealed drum at site. |
| 5 | Material and labour for rewinding of isolation transformer of capacity 75KVA to 100KVA after dismantling of transformer, LT winding and draining out of existing isolation transformer oil complete with suitable gauge of super enamelled copper solid conductor wound in the shape of helical/disc/cylindrical/crossover or as per existing to generate maximum MMF and insulation of winding wrapped with kraft paper/press board, cotton insulating taps and insulating materials shall be of Class A type to withstand 105 degree celicius temperature, re-assembling of isolation transfomer, testing of copper loss, iron loss, core loss, insulation test of all LT windings, topping up of transformer oil, testing of di-electric strength of transformer oil and achieving upto 40MV at 2.5mm gap, repairing of tank body, leakage arresting with brazing/welding machine including preperation of surface and applying 2 coat of anti corrosive synthetic enamel paint over one coat zinc chromite primer over the body by using spray gun and compressor complete all as psecified and directed. Note:- (i) Quoted rate inclusive of all kind of transportation charge, hydra/lifting vehicle, suitable technician/labour etc from site to workshop and back to site complete. (ii) All the materials such as Copper winding wire, insulating papers, core plates, assembling accessories etc are included in quoted rate. (iii) Drain out and filling up of oil includes topping up of additional oil upto conservator level and de-humidification complete included in quoted rate. |
| 6 | Supply and fix rubber cork sheet gasket complete kit for isolation transformer top cover of capacity 100KVA to 315KVA of existing size, shape and thickness complete all as specified and directed. |
| 7 | Material and labour for complete removal of existing treatement of old painted metallic surfaces of isolation transformer, voltage stabilizer, LT panel board, feeder pillar box and AMF panel board etc over 10cm width or girth and applying two coats of anti-corrosive synthetic enamel paint over one coat of zinc chromate primer including preperation of surface complete all as specified and directed. |
| 8 | Material and labour for opening of top cover of the servo controlled voltage stabilizer of capacity varying from 25 KVA to 150 KVA, repair/servicing and overhauling and cleaning of internal parts of the servo voltage stabilizer by using dry cloth, repair / replacement and servicing of spare parts and components of voltage stabilizer after dismantling sevo motor, dimmer and disconnecting wires from the PCB circuit etc and refixing it after repair/replacement of spare parts, complete all as specified and directed. Note: Rewinding/replacement of coils and spare parts shall be measured and paid separately under respective items. |
| 9 | Material and labour for servo motor / synchronizing motor coil wound with silicon CRGO Toroidal core after taking out the 3 x motor from its position carefully of capacity 75KVA capacity and winding by using suitable size of solid copper conductor with specific turn ratio as per existing, varnishing and drying up including transportation to workshop and back and refixing, testing and commissioning complete all as specified and as directed. Note:- (i) Highly skilled technician shall be provided by the contractor for carrying out the job who is having adequate knowledge about the product of any make and model. (ii) Rate including taking out of old unserviciable servo motor is deemed by included in quoted unit rate of items. (iii) Defective coil of primary and secondary side needs to be replaced as per site requirement which cost included in quoted rates. |
| 10 | All as per Ser Item No 9.00 here in before but of capacity 25KVA -ditto- |
| 11 | Material and labour for variable transformer / dimmer coil after taking out of defective circular dimmer coil from its position carefully of capacity 75KVA capacity by using suitable size of solid copper conductor with specific turn ratio as per existing, varnishing and drying up including transportation to workshop and back and refixing, testing and commissioning complete all as specified and directed. Note:- (i) Highly skilled technician shall be provided by the contractor for carrying out the job who is having adequate knowledge about the product of any make and model. (ii) Rate including taking out of old unserviciable transformer / dimmer coil is deemed by included in quoted unit rate of items. (iii) Defective coil of primary and secondary side needs to be replaced as per site requirement which cost included in quoted rates. |
| 12 | All as per Ser Item No 11.00 here in before but of capacity 25KVA -ditto- |
| 13 | Supply and fix in repair series transformer / buck-boost transformer of capacity 75KVA copper wound of existing type and model including testing and commissioning complete all as specified and directed. |
| 14 | All as per Ser Item No 13.00 here in before but of capacity 25KVA -ditto- |
| 15 | Supply and fix in repair contactor, 3 phase of capacity 50 Amp to 100 Amp suitable for the servo voltage stabilizers of capacity varying from 25KVA to 75 KVA complete all as specified and directed. |
| 16 | Supply and fix in repair servo voltage stabilizers overload relay, 3 phase of capacity 50 Amp to 100 Amp suitable for the servo voltage stabilizers of capacity varying from 25KVA to 75 KVA complete all as specified and directed. |
| 17 | Supply and fix in repair servo voltage stabilizers carbon brush of suitable size and type fitted in moving shaft of the voltage stabilizers of capacity 25KVA to 150KVA complete all as specified and directed. |
| 18 | Supply and fix in repair servo voltage stabilizers carbon brush holding assembly brass metal suitable for servo voltage stabilizers 25KVA to 150KVA including testing complete all as specified and directed. |
| 19 | Supply and fix in repair electronic micro controller based PCB circuit board suitable for servo voltage stabilizers of capacity 25 KVA to 150 KVA including inbuilt driver for synchronous motor and all kind of connection, testing of all kind complete all as specified and directed. |
| 20 | Supply and fixing in repair Voltmeter 0-500V digital type with selector switch flush mounting square type complete all as specefied and directed. |
| 21 | Supply and fixing in repair Ammeter digital type 0-300V with selector switch flush mounting square type with CT"s of suitable size complete all as specefied and directed. |
| 22 | Supply and fix in repair perished cork sheet and packing set complete of existing thickness and dimension of capacity varying from 25KVA to 150KVA complete all as specified and directed. |
| 23 | Suplly and fix in repair MCCB, 63 Amps, 4 pole, 415 Volt, 50 Hz, Breaking capacity 25 KA, adjustable thermal and magnetic type complete all as specified and directed. |
| 24 | Suplly and fix in repair MCCB, 100 Amps, 4 pole, 415 Volt, 50 Hz, breaking capacity 25 KA, adjustable thermal and magnetic type complete all as specified and directed. |
| 25 | Suplly and fix in repair MCCB, 160 Amps, 4 pole, 415 Volt, 50 Hz, breaking capacity 25 KA, adjustable thermal and magnetic type complete all as specified and directed. |
| 26 | Suplly and fix in repair MCCB, 200 Amps, 4 pole, 415 Volt, 50 Hz, breaking capacity 36 KA, adjustable thermal and magnetic type complete all as specified and directed. |
| 27 | Excavation in trenches not exceeding 1.5 mtr wide and not exceeding 1.5mtr in depth and getting out in soft/loose soil for laying of under ground cable complete all as specified and as directed. |
| 28 | Returning filling in including spreading leveling wateringand well ramming in layers not exceeding 25cm in soft/loose soil complete all as specified and as directed. |
| 29 | Removing of surplus soil to a distance not exceeding 50 mtr and depositing where directed at a level not exceeding 1.5 mtr above the starting point complete all as specified and as directed. |
| 30 | Material and labour for sand cushioning with clean and dry river sand for protection of PVC cable with approved sand of uniform thickness. laid dry, filling in trenches and punning down in proper required layers complete all as specified anddirected. Note:- Punned down thickness shall be measured for payment. |
| 31 | Materials and labour for brick protection cover to underground cables with sub class ‘B’ of size 23 X 11.5 X 7.5 cm, (locally available best quality), laid dry and flat abutting each other with gaps not exceeding 10mm complete all as specified and directed. |
| 32 | Supply, laying, connecting and testing XLPE insulated, PVC sheathed, armoured LT electric power UG cable (heavy duty with stranded aluminum conductor)of size 95 sqmm, 3.5 core, 1100 Volts (earthed) grade, confirming to IS-7098 (Part-I) laid through duct/ pipe / in trench etc. with cable glands & suitable size of aluminium lugs including taking down old unserviciable existing cable complete all as specified and as directed. Note : Earth work, brick protection and sand cushioning and GI Pipe Shall be measured and paid separately under respective item. |
| 33 | .-ditto- all as per item No 32.00 here-in-before butof size 70 sqmm 3.5 core and -ditto-. |
| 34 | .-ditto- all as per item No 32.00 here-in-before but of size 50 sqmm 3.5 core and -ditto-. |
| 35 | .-ditto- all as per item No 32.00 here-in-before butof size 35 Sqmm 3.5 core and -ditto-. |
| 36 | Supply and fix in repair 50mm bore GI pipe (light grade) with all fittings for protection of cables to cross under road, hard standing, pavement etc complete all as specified and directed. |
| 37 | Material and labour for earthing complete with copper earthplate electrode of size 600 x 600 x 3.15mm thick buried directly in ground with earth pit not less than 2.25 meter deep below ground level with top edge of plate not less than 1.5 meter below normal ground level connected to copper strip of size 20 x 3mm earth lead by means brazing after fixing of nuts, bolts, check nuts, washers of galvanised iron steel,protected by galvanized iron pipe 40mm bore (medium grade) allas directed including cement concrete (1:3:6) type C-1 earth pit with precast RCC (1:1.5:3) type A-1 cover slab of size 42 x 42 x 10cm thick reinforced with 8mm dia TMT bars @ 15 cm c/c both ways with 10mm dia mild steel round bar of 30 cm long, bent to shape as lifting handle, funnel,wire mesh, 20 mm bore galvanized iron pipe (medium grade) for watering, earth testing point, charcoal or coke and salt in alternate layers with necessary earth work in soft/loose soil complete all as shown in electrical plate No 3 of SSR Part I including testing on completion including taking down old existing unserviciable earthing complete all as specified and directed. Note:- Strip upto 7.5m length including testing shall be included in quoted rates. |
| 38 | Material and labour for earthing complete with GI earth plate electrode of size 600 x 600 x 6 mm thick buried directly in ground with earth pit not less than 2.25 meter deep below ground level with top edge of plate not less than 1.5 meter below normal ground level connected to GI earth strip of size 32 x 6 mm earth lead by means of nuts, bolts, check nuts, washers of galvanised iron as steel,protected by galvanized iron pipe 40mm bore (medium grade) allas directed including cement concrete (1:3:6) type C-1 earth pit with precast RCC (1:1.5:3) type A-1 cover slab of size 42 x 42 x10cm thick reinforced with 8mm dia TMT bars @ 15 cm c/c both ways with 10mm dia mild steel round bar of 30 cm long, bent to shape as lifting handle, funnel,wire mesh, 20 mm bore galvanized iron pipe (medium grade) for watering, charcoal or coke and salt in alternate layers with necessary earth work in soft/loose soil complete all as shown in electrical plate No 3 of SSR Part-I including testing on completion including taking down old existing unserviciable earthing complete all as specified and directed. Note:- GI strip upto 7.5m length including testing shall be included in quoted rates. |
| 39 | Material and labour for GI strip 32 x 6 mm with saddles and fixing screws on porecelain insulator/ spacer fixed for extension of earthing strip on roof/wall and joining the same with earth test point complete all as specified and directed. |
| 40 | Material and labour for copper strip 20 x 3.15 mm with saddles and fixing screws on porecelain insulator/ spacer fixed for extension of earthing strip on roof/wall and joining the same with earth test point complete all as specified and directed. |
Copyright © 2024 · All Rights Reserved. Terms of Usage | Privacy Policy
For Tender Information Services Visit : TenderDetail
