Military Engineer Services-MES has published Repair / Maintenance Of Ht Switch Gears , Transformers And Allied Items At Ch ( Ec ) Under Ge ( A ) Kolkata Repair / Maintenance Of Ht Switch Gears , Transformers And Allied Items At Ch ( Ec ) Under Ge ( A ) Kolkata. Submission Date for this Tender is 21-01-2021. Switch Gear Tenders in Kolkata-27 West Bengal. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 02-Jan-2021 | Postponed all critical dates | Date | 14-01-2021 |
| 2 | 14-Jan-2021 | Bid Auto Extn Corrigendum | Bid Auto Extn Corrigendum | 21-01-2021 |
| Nature of Work: REPAIR / MAINTENANCE OF HT SWITCHGEARS, TRANSFORMERS AND ALLIED ITEMS AT CH(EC) UNDER GE(A) KOLKATA | |||||
|---|---|---|---|---|---|
| Sl. No. | Item Description | Item Code / Make | Quantity | Units | |
| 1 | 1 | NOTES :(i)The bidders/contractors are advised to read tender document & all corrigendum/ amendments and General conditions of contracts before entry/quoting the rates.\n | |||
| 2 | 2 | Disconnecting HT/LT connection of oil cooled transformer ( 6.00 KV/433 V) and opening up the top cover of transformer of capacity 630 kVA to 800 kVA for checking the conditions to carryout repairs and over hauling at site, including draining out oil from the transformer in suitable container (containers to be provided by the contractor) and repair to the transformer with replacement of parts (as required), checking the lead connection from winding to bus rods including necessary soldering/jointing etc and after complete repair refilling the dehydrated oil, replacing perished gasket with new gasket of same size and testing on full load after connecting the HT/LT connections as per instructions of relevant BIS code complete all as directed by GE/AGE | BI2021E30C2R01I001 | 7 | Each Job |
| 3 | 3 | All as per ser no 02 but oil cooled transformer of capacity 315 KVA to 500 KVA | BI2021E30C2R01I002 | 9 | Each Job |
| 4 | 4 | All as per ser no 02 but oil cooled transformer of capacity 200 KVA to 250 KVA | BI2021E30C2R01I003 | 9 | Each Job |
| 5 | 5 | All as per ser no 02 but dry transformer of capacity 750 KVA\n\nNotes for item no 02 to 05 :(i) Labour component required for the repalcement of unserviceable parts shall be deemed to be included in the unit rate quoted against this item \n(ii) Major parts as under shall be measured and paid separately under appropriate item of this BOQ \n(iii) Dehydration/ filtration for transformer oil shall be measured and paid separately under relevant item of this BOQ’ \n(iv) T&P and minor parts will be arranged by the contractor and the cost thereof shall be deemed to be included in the unit rate quoted against this item | BI2021E30C2R01I004 | 2 | Each Job |
| 6 | 6 | Supplying transformer oil ISI marked in sealed containers for transformers oil, confirming to IS-335 with dielectric strength of not less than 40 KV and testing for strength including recording results complete all as specified. \nNote:- (i) Purchase vouchers alongwith manufacturer's test certificate shall be produced to GE.\n(ii) Nos of sealed containers shall be recorde in MB\nMake:- CASTROL/IOCL(SERVO)/HP\n | BI2021E30C2R01I005 | 1470 | Ltr |
| 7 | 7 | Labour & equipment for de-hydration and filtration of transformer oil to improve the di-electric strength (not less than 50 kV) including recording results complete all as specified. | BI2021E30C2R01I006 | 8240 | Ltr |
| 8 | 8 | Supply only LT Bush insulators & stud as per existing size and shape for 200 to 315 KVA capacity transformers complete all as specified and as directed. | BI2021E30C2R01I007 | 12 | Each |
| 9 | 9 | Supply only LT Bush insulators & stud as per existing size and shape for 500 to 630 KVA capacity transformers complete all as specified and as directed. | BI2021E30C2R01I008 | 6 | Each |
| 10 | 10 | Material & Labour for HV bushing with brass terminal with nuts and washer and sheet gasket suitable for transformer of capacity 200 to 800 KVA complete all as specified and directed. | BI2021E30C2R01I009 | 10 | Each |
| 11 | 11 | Supply only breather including of silica gel as per existing specification in sealed bag for transformer 200KVA to 250 KVA capacity complete all as specified and directed. | BI2021E30C2R01I010 | 9 | Each |
| 12 | 12 | Supply only breather including of silica gel as per existing specification in sealed bag for transformer 315KVA to 500 KVA capacity complete all as specified and directed. | BI2021E30C2R01I011 | 9 | Each |
| 13 | 13 | Supply only breather including of silica gel as per existing specification in sealed bag for transformer 630 KVA to 800 KVA capacity complete all as specified and directed. | BI2021E30C2R01I012 | 2 | Each |
| 14 | 14 | Supply only top cover gasket set as per existing size and shape complete for 200 to 250 KVA capacity transformers. | BI2021E30C2R01I013 | 7 | Each |
| 15 | 15 | Supply only top cover gasket set as per existing size and shape complete for 315 to 500 KVA capacity transformers. | BI2021E30C2R01I014 | 9 | Each |
| 16 | 16 | Supply only top cover gasket set as per existing size and shape complete for 630 to 800 KVA capacity transformers. | BI2021E30C2R01I015 | 2 | Each |
| 17 | 17 | M & L for preparation of old painted steel or iron surfaces of transformer of any capacity by scrapping with steel wire brush/scrapper emery paper, etc. and applying two coats of synthetic enamel smoke grey paint over a coat of red oxide primer (painting shall be done by spray machine) including writing of SM No, MES No etc. at prominent place/location of transformer capacity 200KVA to 250KVA with black synthetic enamel thick paint in white back ground complete all as specified and directed | BI2021E30C2R01I016 | 7 | Each Job |
| 18 | 18 | All as per ser no 17 but oil cooled transformer of capacity 315 KVA to 500 KVA | BI2021E30C2R01I017 | 9 | Each Job |
| 19 | 19 | All as per ser no 17 but oil cooled transformer of capacity 630 KVA to 800 KVA | BI2021E30C2R01I018 | 4 | Each Job |
| 20 | 20 | Repair and overhauling of 6.00 KV, 400 to 800 Amps capacity VCBs panel (01 no incommer & 05 nos outgoing VCB) of following steps to be carried out , and replacement of unserviceable/burnt out/worn out spare parts with new one as per existing make, duly commissioned in the VCBs at 11 KV Bulk Receiving Centre including necessary inspection, reassembling , testing , re-commissioning, etc complete for smooth functioning of the equipments to ensure desired result including taking down/dismantling of existing unserviceable spares parts of VCB/Capacitor Banks all as directed by GE.\n(a) Disconnecting HT/LT connection of VCB and confirming that supply to incoming end is properly disconnected.\n(b) Opening covers of the circuit breaker and visual checking of epoxy housing and all parts for rust and wear.\n(c) Cleaning all parts of the breaker compartment with appropriate chemical to remove dust and dirt and wipping of the envelop of the vacuum interrupter and insulating material with a clean and dry cloth.\n(d) Lubricating of rotary sections and moving parts, sliding surfaces, pins, coupling section etc by applying a small amount of grease/ petroleum jelly/ machine oil as applicable.\n(e) Checking of PTs, CTs, control circuits, closing and tripping coil and all other parts.\n(f) All unserviceable/burnt out/worn out spare parts shall be replace as per existing OEM\n(g) Replacement of parts detected defective or less reliable.\n(h) Checking auxilliary supply and control voltage, control circuits and tightening of all connections.\nExisting VCBs manufacture name :- PASCAL \n | BI2021E30C2R01I019 | 2 | Each |
| 21 | 21 | All as per ser no 20 but VCBs panel (01 no incommer & 04 nos outgoing VCB)\nExisting VCBs manufacture name :- PASCAL | BI2021E30C2R01I020 | 1 | Each |
| 22 | 22 | All as per ser no 20 but VCBs panel (01 no incommer & 03 nos outgoing VCB)\nExisting VCBs manufacture name :- PASCAL | BI2021E30C2R01I021 | 1 | Per Set |
| 23 | 23 | All as per ser no 20 but VCBs panel (01 no incommer & 02 nos outgoing VCB)\nExisting VCBs manufacture name :- PASCAL | BI2021E30C2R01I022 | 2 | Each |
| 24 | 24 | All as per ser no 20 but single VCBs panel \nExisting VCBs manufacture name :- PASCAL | BI2021E30C2R01I023 | 1 | Per Set |
| 25 | 25 | All as per ser no 20 but VCBs panel (01 no incommer & 06 nos outgoing VCB)\nExisting VCBs manufacture name :- Areva /Alsthom | BI2021E30C2R01I024 | 1 | Per Set |
| 26 | 26 | All as per ser no 20 but single VCBs panel \nExisting VCBs manufacture name :- Areva /Alsthom/ECE/CG/ Kirloskar | BI2021E30C2R01I025 | 7 | Each |
| 27 | 27 | All as per ser no 20 but Ring Mail Panel (02 no incommer & 01 no outgoing VCB)\nExisting VCBs manufacture name :- Areva /Alsthom\nNotes for item no 20 to 27: \n(i) Labour component required for the replacement of unserviceable parts shall be deemed to be included in the unit rate quoted against this item \n(ii) All unserviceable/burnt out/worn out spare parts shall be replaced as per existing make and same shall be measured and paid separately under this items.\n(iii) T&P and minor parts will be arranged by the contractor and the cost thereof shall be deemed to be included in the unit rate quoted against this item .\n(iv) Repair, overhauling & testing of VCB shall be carried out by authorized competent persons of OEMs or their accredited/ authorised agencies and contractor shall be submitted supporting document of authorized representative of existing VCB to GE . The service charge of OEM shall deem to be included in above quoted rate. \n(v) The cost of spare parts, transportation/servece of engineer and other necessary equipment shall be arranged/brought by the contractor in this effect , hence the bidder/tenderer is advised to visit the site and assess the quantum of the work to be carried out in the contract. The cost of the same is deemed included quoted rates and no extra cost shall be paid to the contractor in this effect. \n\n | BI2021E30C2R01I026 | 6 | Each |
| 28 | 28 | Material, Labour in repair of earthing complete with galvanized steel earth plate electrode 600 x 600 x 6mm thick buried directly in ground vertically to a depth not less than 2.25 mtr deep below the normal ground level, connected with and including galvanized earth strip of size 32 x 6mm thick connected to main test point as directed as earthing lead by means of nuts, bolts, washers of galvanized iron protected by 40mm dia (light grade) GI tubing, funnel, wire mesh, 20mm bore GI tubing (medium grade) watering pipe including concrete pit in PCC (1:3:6) type C-1, precast RCC (1:2:4) type B-1 cover slab of size 350 x 350 x 50mm reinforced with 8mm dia TMT bars @15 cm c/c in both ways and 10mm dia MS handle (01 No) of suitable size for lifting of cover slab, charcoal and salt in alternative layers including necessary excavation and earth work in soft/ loose soil all as shown in Electric Plate No. 3 of SSR Part - I and testing on complete all as specified and directed.\nNotes : (i) The unit rate shall include for GI water pipe, protection pipe, wire mesh, funnel, excavation, RCC pit cover, PCC, test point, earth srip from top of earth plate upto 7.5 metre ground level (ii) PCC pit shall be provided at least 1.5 mtr away from the earth pit and not just on the earth pit and extra cost of additional length of water pipes and fixing junction, elbows etc. shall be deemed to be included in the unit rate. | BI2021E30C2R01I027 | 45 | Each |
| 29 | 29 | Material and Labour for Earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required 32x6mm galvanised iron strip | BI2021E30C2R01I028 | 285 | RM |
| 30 | 30 | Material and Labour for Aluminium strip 25 x 3 mm with saddles and fixing screws etc. for roof conductors and down conductors above ground | BI2021E30C2R01I029 | 325 | TRM |
| 31 | 31 | Material and Labour for Test point terminal block made of gun metal or phosphorus bronze size 75x75x25mm drilled and screwed including 3 nos. 8mm dia 25mm long hex. head screw | BI2021E30C2R01I030 | 45 | Each |
| 32 | 32 | Supply, fixing and repair of lightening arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 Kilo Amp of rating 11 KV complete all as specified and as directed. | BI2021E30C2R01I031 | 2 | Per set |
| 33 | 33 | Supply and laying in trenches, fixing or passing through pole, fixed to wall/pole, connectiong and testing of LT XLPE insulated armoured heavy duty cable 1100 volt grade ISI marked with alumimium conductor multi strand cross sectional area 185 Sqmm x 3 1/2 Core complete including taking down old cable all as specified and directed. | BI2021E30C2R01I032 | 110 | RM |
| 34 | 34 | Supply and laying in trenches, fixing or passing through pole, fixed to wall/pole, connectiong and testing of LT XLPE insulated armoured heavy duty cable 1100 volt grade ISI marked with alumimium conductor multi strand cross sectional area 120 Sqmm x 3 1/2 Core including taking down old cable complete all as specified and directed. | BI2021E30C2R01I033 | 175 | RM |
| 35 | 35 | Supply and laying in trenches, fixing or passing through pole, fixed to wall/pole, connectiong and testing of LT XLPE insulated armoured heavy duty cable 1100 volt grade ISI marked with alumimium conductor multi strand cross sectional area 95 Sqmm x 3 1/2 Core including taking down old cable complete all as specified and directed. | BI2021E30C2R01I034 | 145 | RM |
| 36 | 36 | Supply and laying in trenches, fixing or passing through pole, fixed to wall/pole, connectiong and testing of LT XLPE insulated armoured heavy duty cable 1100 volt grade ISI marked with alumimium conductor multi strand cross sectional area 400 Sqmm x 3 1/2 Core including taking down old cable complete all as specified and directed. | BI2021E30C2R01I035 | 50 | RM |
| 37 | 37 | Supply and laying in trenches, fixing or passing through pole, fixed to wall/pole, connectiong and testing of LT XLPE insulated armoured heavy duty cable 1100 volt grade ISI marked with alumimium conductor multi strand cross sectional area 240Sqmm x 3 1/2 Core including taking down old cable complete all as specified and directed. | BI2021E30C2R01I036 | 125 | RM |
| 38 | 38 | Supply and laying of XLPE insulated (Earthed), screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) with aluminium conductor, 11000 volts grade, cross sectional area 95 Sq mm, 3 core including taking down old cable complete all as specified and as directed. | BI2021E30C2R01I037 | 85 | RM |
| 39 | 39 | Supply and laying of XLPE insulated (Earthed), screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) with aluminium conductor, 11000 volts grade, cross sectional area 120 Sq mm, 3 core including taking down old cable complete all as specified and as directed. | BI2021E30C2R01I038 | 155 | RM |
| 40 | 40 | Supply, jointing and testing of cable jointing kit for 11KV(Earthed) grade cable for indoor termination cold shrink type joint complete with jointing materials and accessories suitable for 3 core XLPE armored Aluminium conductor cable of size 95 Sqmm complete all as specified and as directed. | BI2021E30C2R01I039 | 4 | Each |
| 41 | 41 | Supply, jointing and testing of cable jointing kit for 11KV(Earthed) grade cable for indoor termination cold shrink type joint complete with jointing materials and accessories suitable for 3 core XLPE armored Aluminium conductor cable of size 120 Sqmm complete all as specified and as directed. | BI2021E30C2R01I040 | 2 | Each |
| 42 | 42 | Supply, jointing and testing of cable jointing kit for 11KV(Earthed) grade cable for straight through cold shrink type joint complete with jointing materials and accessories suitable for 3 core XLPE armored Aluminium conductor cable of size 95 Sqmm complete all as specified and as directed. | BI2021E30C2R01I041 | 2 | Each |
| 43 | 43 | Supply, jointing and testing of cable jointing kit for 11KV(Earthed) grade cable for straight through cold shrink type joint complete with jointing materials and accessories suitable for 3 core XLPE armored Aluminium conductor cable of size 120 Sqmm complete all as specified and as directed. | BI2021E30C2R01I042 | 2 | Each |
| 44 | 44 | Excavating in trenches n. exc 1.5m wide and not e. 1.5m in depth for foundation of poles, laying under ground cables, etc and getting out in soft/loose soil complete as specified and directed. | BI2021E30C2R01I043 | 280 | Cum |
| 45 | 45 | Excavating in trenches n. exc 1.5m wide and exc. 1.5m and not exc. 3.00m in depth for foundation of poles, laying under ground cables, etc and getting out in soft/loose soil complete as specified and directed. | BI2021E30C2R01I044 | 4 | Cum |
| 46 | 46 | Returning, filling in, including spreading leveling watering and well ramming in layers not exc 25 cm as in soft / loose soil complete as specified and directed. | BI2021E30C2R01I045 | 279 | Cum |
| 47 | 47 | Removing excavated material not exc. 50 m and depositing where directed at a level not exc 1.5 m above the starting point in soft / loose soil complete as specified and directed. | BI2021E30C2R01I046 | 5 | Cum |
| 48 | 48 | Supply and laying well burnt bricks sub class 'B', laid breath wise along the length of cable in trenches for underground cable protection complete all as specified and directed. | BI2021E30C2R01I047 | 2000 | 1000 \nNos |
| 49 | 49 | Laying well burnt bricks sub class 'B',obtained from taking dwon cable, laid breath wise along the length of cable in trenches for underground cable protection complete all as specified and directed. | BI2021E30C2R01I048 | 550 | 1000 \nNos |
| 50 | 50 | Material & Labour of sand cushioning to the full width of trenches for protection of cables including punning down complete all as specified. \nNote :- Thickness of sand cushioning shall be measure after punning down. | BI2021E30C2R01I049 | 98 | Cum |
| 51 | 51 | Supplying and laying reinforced precast concrete cable cover, class HV type - 1 flat, size 300mmx l80mm x 40mm complete all as specified and directed. | BI2021E30C2R01I050 | 1580 | Each |
| 52 | 52 | Supply, fixing of Galvanised steel tubing, light grade, with fittings and MS clamps, nuts, bolts etc of 50 mm dia bore for cable protection on pole, road crossing or ground in pillars for fixing gate light etc complete all as specified. | BI2021E30C2R01I051 | 6 | RM |
| 53 | 53 | Material, Labour for plain cement concrete (1:2:4) type B-1( with using 20 mm graded stone aggregate) as in coping roof kerbs etc complete all as speceifed and directed. | BI2021E30C2R01I052 | 6 | Cum |
| 54 | 54 | Rendering 5 mm thick cement plaster 1:6 on fair faces of brick work or concrete surfaces complete all as speceifed and directed. | BI2021E30C2R01I053 | 30 | Sqm |
| 55 | 55 | Material, Labour for mild steel plates (plain or chequered) channels, square cut or notched (ordinary and counter sunk) forming holes, without any attachment conforming to Fe-290(Gde E-165) complete all as speceifed and directed. | BI2021E30C2R01I054 | 3500 | KG |
| 56 | 56 | Painting over surfaces of any description, over 10cm in width or girth, not otherwise described with two coats of black japan paint complete all as speceifed and directed. | BI2021E30C2R01I055 | 75 | Sqm |
| 57 | 57 | Supply and laying of 2.5 mm thick synthetic insulating mat/sheet for 11 KV/ 6.6 KV substations all as specified in SSR Part-I clause no 19.23A and IS 15652 complete all as speceifed and directed. | BI2021E30C2R01I056 | 20 | Sqm |
| 58 | 58 | Supply and laying of 2.0 mm thick synthetic insulating mat/sheet for 11 KV/ 6.6 KV substations all as specified in SSR Part-I clause no 19.23A and IS 15652 complete all as speceifed and directed. | BI2021E30C2R01I057 | 25 | Sqm |
| 59 | 59 | Supply only portable Earthing Discharge Rod 11 kV grade with Fibre Glass handle with 'U' shaped copper earthing clamp, PVC insulated flexible copper earthing lead with spring loaded adjustable main discharge clamp including Canvas bag for carrying of \n | BI2021E30C2R01I058 | 1 | Each |
| 60 | 60 | Note: Schedule of credit (SCHEDULE OF CREDIT) amount of Rs ? ___________ mentioned on Page No ____ shall be deducted from the total quoted amount of BOQ. |
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