Military Engineer Services-MES has published Special Repair / Replacement Of Ber Transformer At Lekhapani Mil Stn Under Ge Lekhapani. Submission Date for this Tender is 09-02-2022. Transformer Supply Tenders in lekhapani Meghalaya. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 02-Feb-2022 | Bid Auto Extn Corrigendum | Bid Auto Extn Corrigendum | 09-02-2022 |
| Sl. No. | Item Description |
| 1 | Isolating existing U/S and BER Transformers of capacity ranging from 100 KVA to 400 KVA from sub stns after taking down, disconnecting HT/LT electric supply, unscrewing the nuts/bolts, lifting by crane and transporting through truck to MES Store yard for safe custody complete all as specified and directed by the Engr-in-charge. |
| 2 | Supplying, installing, connecting, testing & commissioning of distribution transformer of capacity 200 kVA, oil immersed type, step down, copper winding, outdoor type, ONAN type cooling, connection symbol Dyn11, HT winding with delta connected, LT winding with star connected with neutral brought out, HT (11 KV, 3 Phase, 50 Hz), LT (433 Volts 3 Phase 4 wire), with off load tapings on HT side to vary secondary voltage to ± 2.5% /± 5% /±7.5% within limit all as per IS-1180 (Part-I) 2014 with amt No. 1,2 & 3 with HT Vable box and LT cable Box complete with all fittings, accessories and item, including plinth mounting of transformer, insulation level conforming to relevant IS and rated impedance including first filing of Transformer oil conforming to IS 335- 1993 and of dielectric strength 42 KV/cm (RMS) minimum and all other fitting etc complete as specified and as directed. |
| 3 | M & L for earthing complete with galvanised steel plate earth electrode 600 mm X 600 mm X 6 mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less than 1.5 metres below normal ground level, connected to earthing lead of 25 mm X 4 mm galvanised mild steel strip by means of bolts, nuts, check nuts and washers of galvanised iron from earth plate to test point upto 7.5 metre including all as shown in electrical plate No. 3 of SSR Part I (2009) including necessary concrete chamber in cement concrete M15 (Nominal Mix) using 20 mm nominal size coarse aggregate, precast RCC cover slab in cement concrete M15 (Nominal mix) using 20 mm nominal size coarse aggregate of size 40 cm X 40 cm X 5 cm reinforced with 8 mm dia TMT bars @ 150 mm c/c with one handle for lifting made out of 8 mm dia bar, GI funnel, GI wire mesh filter, 20 mm dia GI pipe medium grade for watering, 40 mm dia GI pipe medium grade for protection of earthing lead, charcoal or coke and salt in alternate layers including necessary excavation and earth work in any type of soil/ strata and testing complete all as specified and as directed by the Engineer-in-charge. |
| 4 | Supply, laying, jointing, testing and commissioning cross-linked polyethylene (XLPE) insulated cable for working voltages of 1100 V, PVC sheathed, armoured, 3 core with reduced neutral conductors (3½ core), nominal cross sectional area of main conductor 150 sqmm, stranded aluminium conductor, ISI marked as per IS 7098(Part-I): 1988 including cable glands, lugs etc. to suit the cable size and to be laid in trenches, fixed along pole, under floors, through GI pipe laid under floors/roads, through concealed GI pipe along wall etc. complete all as specified and as directed. |
| 5 | Excavating in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. or for cable laying or water supply pipes lines etc or not exceeding 10 sqm on plan and not exceeding 1.5 m in depth and getting out in soft/ loose soil complete all as specified and as directed. |
| 6 | Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm in soft/ loose/ hard/ dense soil complete all as specified and as directed. |
| 7 | Removing excavated material (soils) not exceeding 50 m and depositing where directed at a level n exc. 1.5 m above the starting point |
| 8 | Supply & spreading in trenches dry river sand cushioning to underground cable in trenches including spreading, levelling hand punning down complete all as specified and directed Note:- Depth of sand cushioning will be measured after punning down and levelling the sand properly. |
| 9 | M & L for laying of bricks locally available sub class "B" bricks (old size) for cable protection cover laid flat and dry in trenches over the cablfCe perpendicular to the direction of cable all as directed. |
| 10 | Supply, laying and testing cross linked polyethylene (XLPE) insulated, PVC sheathed cables for working voltages11 kV, three phase, earthed system, 3 core, screened, armoured power cable, 95 sqmm of nominal area of conductor, aluminium conductor, ISI marked as per IS 7098 (Part-II): 2011 laid in trenches or under floors making all connections with necessary glands lugs bushing including taking down complete all as specified and as directed. |
| 11 | S & F XLPE cable end termination, heat shrinkable, indoor type complete with jointing material and accessories suitable for voltage 6.35 kV/ 11 kV (Earthed), 3 core, 50 sqmm to 95 sqmm complete all as specified and as directed. |
| 12 | S & F XLPE cable end termination, heat shrinkable, outdoor type complete with jointing material and accessories suitable for voltage11 kV (Earthed), 3 core, 50 sqmm to 95 sqmm complete all as specified and as directed. |
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