Military Engineer Services-MES has published Repair Maintenance Of Vcb Rmu Distribution Transformer God Isolation Transformer Including Maintenance Of Ht Oh And Ug Cables And Connected Works At Af Stn Darbhanga. Submission Date for this Tender is 15-02-2020. Circuit Breakers Tenders in AGE (AF) Darbhanga Bihar. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 28-Jan-2020 | corrigendum-01 | Date | 04-02-2020 |
| 2 | 07-Feb-2020 | corrigendum-03 | Date | 15-02-2020 |
| Name of Work: REPAIR/MAINTENANCE OF VCB,RMU, DISTRIBUTION TRANSFORMER, GOD, ISOLATION TRANSFORMER INCLUDING MAINTENANCE OF HT OH AND UG CABLES AND CONNECTED WORKS AT AF STN DARBHANGA | |||||
|---|---|---|---|---|---|
| Sl. No. | Item Description | Item Code / Make | Quantity | Units | |
| 1 | 1 | M&L for painting of transformer 100 to 315 KVA including preparation of surface by scrubbing out dust, dirt and oil from all places and applying two coats of grey synthetic enamel paint and writing MES/SM No etc complete all as specified and directed by Engineer-in-Charge. | 4 | EACH | |
| 2 | 2 | Taking down defective VCB/ transformer upto 100KVA capacity from poles/structures after disconnecting all electrical connections removing to sub station/workshop for repair as directed and refixing the repaired transformer in same place of taken down defective transformer including transportation, loading, unloading of transformer from sub station to work site/work shop and all electrical connection on HV and LV side including all connecting and jointing materials such as suitable size of lugs, bolts, nuts etc complete all as specified and as directed. | 4 | EACH JOB | |
| 3 | 3 | M&L for replacement of UNSV/burnt copper high voltage winding into new windings of existing guage including replacement of double paper insulated conductor and insulating materials, varnishing with vaccum impregnation and baking coil of transformer upto 100KVA capacitiey complete all as specified and as directed. | 100 | KILOGRAMS | |
| 4 | 4 | M&L for replacement of UNSV/burnt copper low voltage winding into new windings of existing guage including replacement of double paper insulated conductor and insulating materials, varnishing with vaccum impregnation and baking coil of transformer upto 100KVA capacitiey complete all as specified and as directed. | 100 | KILOGRAMS | |
| 5 | 5 | Disconnecting & taking out old HT/LT Bushing of transformer of capacity for upto 160KVA opening the top cover of transformer and replacement of bushing with stud/connecting rod with cork sheet packing & refixed the top cover of transformer including replacement of cork sheet packing and testing complete.\nNote :- (i) HT & LT Bushing will measured & paid separately as supply only under relevant item of schedule of work.\n(ii) The quoted rate shall deem to be included the cost of cork sheet, packing materials, nut bolts etc. | 3 | EACH | |
| 6 | 6 | Disconnecting & taking out old HT/LT Bushing of transformer of capacity for above 160KVA to 315KVA opening the top cover of transformer and replacement the bushing with stud/connecting rod with cork sheet packing & refixed the top cover of transformer including replacement of cork sheet packing and testing complete all as specified and as directed.\nNote :- (i) HT & LT Bushing will measured & paid separately as supply only under relevant item of schedule of work.\n(ii) The quoted rate shall deem to be included the cost of cork sheet, packing materials, nut bolts etc. | 1 | EACH | |
| 7 | 7 | Supply and fixing HV bushing with brass metal connecting rod, nut, bolt and washer for upto 160KVA capacity transformer complete all as specified and as directed. | 4 | EACH | |
| 8 | 8 | Supply and fixing HV bushing with brass metal connecting rod, nut, bolt and washer for upto 160KVA to 315 KVA capacity transformercomplete all as specified and as directed. | 2 | EACH | |
| 9 | 9 | Supply only LV bushing of transformer with brass metal connecting rod, nut, bolt and washer for upto 160 KVA capacity transformer complete all as specified and as directed. | 4 | EACH | |
| 10 | 10 | Supply only LV bushing of transformer with brass metal connecting rod, nut, bolt and washer for upto 160 KVA to 315 KVA capacity transformer complete all as specified and as directed. | 4 | EACH | |
| 11 | 11 | S&F in replacement of silica gel breather suitable for 100 KVA transformer including filling of cylica gel blue in colour semi transparent glassy substance containing an indicator as "Cobalt Chloride" complete all as specified and as directed. | 2 | EACH | |
| 12 | 12 | S&F in replacement of silica gel breather suitable for exceeding 100 KVA and upto 250 KVA transformer including filling of cylica gel blue in colour semi transparent glassy substance containing an indicator as "Cobalt Chloride" complete all as specified and as directed. | 2 | EACH | |
| 13 | 13 | Supply and filling insulating transformer oil conforming to IS-335 for filling/toping up of transformers as required at site duly filtered having dielectric strength not less than 60 KV at 2.5 mm gap complete all as specified and as directed.\nNote : Transformer oil shall be in sealed drum. | 200 | PER LITRE | |
| 14 | 14 | Dehydration of transformer oil both factory and site of work including heating, filtration, cleaning and testing required upto dielectric strength 60 KV in 4mm gap and testing of samples to the satisfaction of Engr-in-Charge and kept record of result before and after dehydration complete all as specified and as directed. | 1200 | PER LITRE | |
| 15 | 15 | Supply and replacement of fresh silica gel blue in colour, semi transparent glossy substance containing an indicator as "Cobalt Chloride" complete all as specified and as directed. | 5 | KILOGRAMS | |
| 16 | 16 | Maintenance and complete overhauling and calibraction of 11 KV VCB including dismantling of Vaccum intrupter bottel, trip coil, closing coil, Auxilary switch, spring limet switch, braker limet switch mechanical parts, well cleaning with petrol and CRC-226, replacing of moving parts, reassembly, fine setting of mechanism, replacement of unserviceable parts and reassembly of parts including well cleaning the complete panel board decarburization of all joints, metal parts and making VCB perfect operating condition including all routine and preventive maintenance complete all as specified and directed and replacement of following part . | 1 | EACH JOB | |
| 17 | 17 | Voltage meter HT | 3 | EACH | |
| 18 | 18 | Digital Ampere meter (0-500Amps) | 3 | EACH | |
| 19 | 19 | LED type Incicator RYB | 9 | EACH | |
| 20 | 20 | 3ph overcurrent & earth fault rely Art No 1MYN742838 make ABB- | 2 | EACH | |
| 21 | 21 | Vaccum intrupter bottel, | 3 | EACH | |
| 22 | 22 | trip coil, | 3 | EACH | |
| 23 | 23 | Closing coil | 3 | EACH | |
| 24 | 24 | Auxilary switch | 3 | EACH | |
| 25 | 25 | Spring limet switch | 3 | EACH | |
| 26 | 26 | Braker limet switch | 3 | EACH | |
| 27 | 27 | Servicing of HT, 11 KV, VCB, 50 Hz breaking capacity 630A, 20 KA trolly by drawing out from panel chamber including removing carbon deposits from moving/fixed contact points, greasing and tightening all fixed and moving contacts for smooth functioning including replacement of tripping and closing coils as per existing and servicing of solenold switch all as specified and as directed. | 3 | EACH | |
| 28 | 28 | M&L for synthetic insulating mat of size 2mx1mx19mm suitable for HT 11KV complete all as specified and directed by Engineer-in-Charge. | 4 | EACH | |
| 29 | 29 | M&L for lightning arrestor, HT 11000 Volts, expulsion type, complete with all fittings, transmission class, discharge capacity 65 Kilo Amps complete all as specified and directed by Engineer-in-Charge.. | 2 | PER SET | |
| 30 | 30 | M&L for Air break gang operated switch, HT, 11000 Volts, Tripple pole mechanically operated, mounted on insulators and steel frames with operating mechanism worked from ground level with operating rod, handle etc, for current rating upto 200 Amps, fixed on pole/structures complete all as specified and directed by Engineer-in-Charge. | 4 | EACH | |
| 31 | 31 | Repair/replacement for brazing of earth continuity conductor for main earthing lead 32mm x 6mm, GI strip/earth lead, in any position including jointing by existing tinned copper/brass nuts, bolts and washers complete all as specified & directed.\nNote :- (i) Each joint shall be considered for measurement purpose.\n(ii) New nut bolts & washers shall be used for jointing of any size.\n(iii) Brazing shall be done with gas welding using brass electrode. | 200 | RUNNING METRE | |
| 32 | 32 | Earthing complete with galvanized steel earth plate electrode 600 x 600 x 6mm thick buried directly in ground (earth pit not less than 2.25 metre deep below normal ground level) with top edge of the plate not less then 1.50 metre below normal ground level connected with GI strip 32x6mm as earthing leads by means of bolts, nuts, check nuts and washers to galvanized iron or steel all as shown in electrical plate No. 3 of MES SSR Part I 2009 (duly protected with 40 mm dia light grade GI pipe up to 7.5 metre from the earth plate) and connected to GI steel earth plate including charcoal dust, common salt necessary excavation in soft/loose soil returning filling in and removal of surplus soil to a distance not exceeding 50 metre from the satrting point watering pipe 20 mm dia GI medium grade treated with one No. PGI funnel, pit of PCC (1:3:6) type C1 chamber (using 20 mm graded crushed stone aggregate) RCC 1:2:4 type B1 (using 20 mm graded crushed stone aggregate) pit cover 75 mm thick reinforced with 8 mm dia TMT bars @ 75 mm C/C both ways with MS handle 12 mm dia, complete conected to earth test point including testing complete all as specified and directed. Notes:- (i)The concrete pit shall be made in PCC 1:3:6 type C-1, using 20 mm graded crushed stone aggregate, 40mm thick precast cover slab of RCC (1:2:4), type B-1, using 20mm graded crushed stone aggregate with suitable MS handle in lieu of CI cover shown in electrical plate No 3 of MES SSR Part-I shall be provided. Reinforcement in RCC cover shall be of 8mm dia TMT bars laid @150mm c/c both ways.\n(ii) Item includes the cost of 7.5 metre GI pipe for protection of earth strip. Any variation in length shall be adjusted through deviation order.\n(iii) Item includes cost of 7.5 metre earth strips. Any variation in length shall be adjusted through deviation order.\n(iv) Earth plate electrode shall be surrounded by adequate quantity of charcoal dust and salt to a packed thickness of 15 cm on all sides. | 8 | EACH JOB | |
| 33 | 33 | Dismantling of unserviceable worn out/weathered/damaged ACSR conductor, service feeder of any size from pole after disconnecting of jumpers and insulator bindings complete all as specified and directed. | 3 | PER QUINTEL | |
| 34 | 34 | M&L for stringing on poles etc, restore and testing HT/LT line, ACSR conductor, any size/type, for power lines/jumper connections with suitable size lugs/PG Clamps, binding on insulators with aluminum binding wires etc, all as specified and as directed. | 3 | PER QUINTEL | |
| 35 | 35 | Restringing, tightening of ACSR conductor of any size and type , maintaining standard sag including providing aluminum binding wire on HT over head lines and fixing of all insulator, ACSR conductor all span in one meter length reading in HT line complete all as specified and directed. | 1500 | RUNNING METRE | |
| 36 | 36 | M&L for cradles hexagonal or rectangular fabricated with galvanised steel wires 4mm or 3.15 mm dia for road crossings, between HT and LT concuctors on same supports etc complete all as specified and directed by Engineer-in-Charge. | 2 | PER QUINTEL | |
| 37 | 37 | Dismantling cross arm of MS channel or angle section from the pole complete all as directed. | 1 | PER QUINTEL | |
| 38 | 38 | M&L for cross arms, bracings, supports, clamps, back plates etc, fabricated with structural steel sections including bolts, nuts washers etc, welding bending cold or hot drilling holes for bolts, in any shape or size as indicated or as directed and inclusive of one coat of primer one under coat, and finishing coat of paint all as directed. | 1 | PER QUINTEL | |
| 39 | 39 | M&L for danger notice board, HT, 11000 volts, of size 25 cm x 20 cm, 1.6 mm thick, mild steel sheet, vitreous, enameled white with letters, figures and conventional skull and bones in signal red colour and fixed with clamps, bolts, nuts of approved size complete all as specified and directed by Engineer-in-Charge.. | 15 | EACH | |
| 40 | 40 | Cutting/pruning and removing tree branches close to the or touching the electric overhead lines HT/LT or at sub stations etc, by climbing on the tree with necessary safety precautions tools etc, removing, transporting the cut branches from site and deposting where directed at a distence not exceeding 300 mtr all as specified and as directed.\nNote : Shut down of electric supply shall be taken before climbing trees. Any damage to existing OH lines/services etc, shall be made good without any extra cost. | 100 | EACH SPAN | |
| 41 | 41 | Supply and laying XLPE insulated screened PVC bedded cable, galvanized steel strip or wire armored, electric power cables (heavy duty) 11000(E) Volts grade with stranded aluminium conductor of size 95 Sqmm 3 core including taking down old unserviceable cabe of any size complete all as specified and directed by Engr-in-Charge. Make : Havells/Fort Gloster/Asian cables/Polycab/Universal. | 100 | RUNNING METRE | |
| 42 | 42 | Supply and laying XLPE insulated screened PVC bedded cable, galvanized steel strip or wire armored, electric power cables (heavy duty) 11000(E) Volts grade with stranded aluminium conductor of size 185 Sqmm 3 core including taking down old unserviceable cabe of any size complete all as specified and directed by Engr-in-Charge. Make : Havells/Fort Gloster/Asian cables/Polycab/Universal. | 60 | RUNNING METRE | |
| 43 | 43 | Supply and laying XLPE insulated screened PVC bedded cable, galvanized steel strip or wire armored, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 95 Sqmm 3.5 core including taking down old unserviceable cabe of any size complete all as specified and directed by Engr-in-Charge. Make : Havells/Fort Gloster/Asian cables/Polycab/Universal. | 200 | RUNNING METRE | |
| 44 | 44 | S&F cable joining kit for 11 KV (Earthed) grade cable for outdoor termination cold shrink type joint complete with joining material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 70-95 sqmm complete all as specified and directed by Engr-in-Charge. | 2 | EACH | |
| 45 | 45 | S&F cable joining kit for 11 KV (Earthed) grade cable for indoor termination cold shrink type joint complete with joining material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm to 185 sqmm complete all as specified and directed by Engr-in-Charge. | 2 | EACH | |
| 46 | 46 | Excavating in trenches, not exceeding 1.5 metre wide and not exceeding 1.5 metre in depth for wall foundation etc or for manholes etc not exceeding 10 Sqm area on plan and not exceeding 1.5 metre in depth and getting out in soft/loose soil complete all as speified and as directed. | 75.6 | CUBIC METRE | |
| 47 | 47 | Returning filling in foundation/trenches including spreading leveling, watering and well ramming in layers not exceeding 25cm thick complete all as speified and as directed. | 53.7 | CUBIC METRE | |
| 48 | 48 | Removing excavated surplus soil to a distance n. exc 50 metre and deposited where directed at a level n.exc 1.5 metre above the starting point complete all as speified and as directed. | 43.281 | CUBIC METRE | |
| 49 | 49 | Supply and lay sand cushioning in trenches with clean dry unsheathed gently punning around cable for protection complete.\nNote : Only punned thickness shall be measured for payment | 22.68 | CUBIC METRE | |
| 50 | 50 | M&L well burnt sub class 'B' bricks laid flat width wise along the length of cable for cable protection complete all as specified and directed. | 2.4348 | PER THOUSAND NUMBERS | |
| 51 | 51 | Material and labour for PCC (1:4:8) type D-2 using using 40mm graded stone aggregate in foundation, plinth for transformer and repair duct etc complete all as specified & directed. | 25 | CUBIC METRE | |
| 52 | 52 | Repairing of existing damaged earthing pit by increasing hight above ground level upto 9" and construction of earthing pit chamber, connecting of earthing to earthing pit and earthing concrete pit in PCC 1:3:6 type C1 50mm thick pre cast RCC 1:2:4 type B1 including earth work as required complete all as specified and as directed. | 25 | EACH | |
| 53 | 53 | Repair/replacement 40mm thick precast cover slab made of RCC (1:2:4), type B-1, using 20mm graded crushed stone aggregate, set in CM (1:4) re-enforcement with 8mm dia deformed bars @ 15cm C/C and suitable handle of 10mm dia MS round bars complete all as specified & directed. | 20 | EACH | |
| 54 | 54 | M&L for PCC (1:2:4) type B-1 using 20mm graded stone aggregate in kerbs/coping/bed plates and like including weathering, slightly rounded or chamfered angles and with necessary use and waste of form work complete all as specified. | 0.5 | CUBIC METRE | |
| 55 | 55 | M&L for insulator HT, 11000 volts grade, PIN type, of size 150 mm height and 150mm dia, porcelain, vitreous, white or brown, including galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut complete all as specified & directed. | 15 | EACH | |
| 56 | 56 | M&L for HT, 11000 volts grade, DISC type insulator , single disc assembly, of size 145mm height and 255 mm dia, ball and socket type, porcelain, vitreous, white or brown, for tension with tensile clamps for conductors complete all as specified & directed. | 12 | EACH | |
| 57 | 57 | Material & labour for erecting in position of true vertical swaged tubular pole type 410 SP-55 [11 m long] complete with cast iron base plate, final taper plug, bolts nuts screws and top cover complete including taking out old pole any type from ground and making good disturbed surface complete as specified & directed by Engineer-in-Charge including following:-\nNote :- Excavation and earth work and PCC will be measured and paid separately. | 5 | EACH | |
| 58 | 58 | M&L for cleaning and preperation of surfaces, by scrubbing with wire brushes, emery papers etc, from all metalic surfaces of MS tubular HT electric poles, any type/ model, not more than 8.7 mtr long above ground level, including cross arms, clamps, GI pipes brackets etc, including writting of pole number etc, by paint all as specified and as directed. | 60 | Each | |
| 59 | 59 | Material and labour for stay assembly comprising of 7/8 SWG galvanised stay strandard wire of required length fixed to pole with and including flat iron clamp bolts nut and washer, galvanised 14mm dia, 400mm long, stay bow with 19/20 mm dia 215cm long stay rod with threaded ends, GI nut and washer, GI stay plate 230x230x6mm thick plate, two nos thimble, MS clamp made out of 50x 6mm flate iron loop insulator made of 90mm x 140mm dia, 25mm porcelain complete all as specified and shown in electrical plate No 1 complete all as specified and directed. \nNote :- Loop type insulator stay clamps, excavation and concrete shall be measured separately. | 4 | EACH SET | |
| 60 | 60 | Dismantling complete unit of automatic voltage stabilizer, oil cooled type 3 phase 440 volts, 50 Hz, 20 and 25 KVA, connecting all electrical connections, taking out oil strip blue line, cleaning and segregating mechanical spare parts for operation as per direction of Engr-in-Charge, cleaning of inner surface tank, carrying out repairs including replacement of worm out parts, replacement of steel nuts, bolts washers of required size and Nos, refilling of transformer oil, re-assembling, connecting to electric supply load on site testing on full load for manual corrected output voltage at variable (but within the permisible limit) input voltage and cut of action on low voltage upto the satisfaction of the Engr-in-Charge.\nNote :- (i) The cost of minor spare parts required for repair/maint of voltage stabilizer shall deemed to be quoted by the contractor in quoted rate.\n(ii) The major spare parts required for maintenance and operation of automatic voltage stabilizer mentioned here in after shall be measured and paid separately under relevant schedule. | 1 | EACH JOB | |
| 61 | 61 | (a) Servomotor gear of existing shape and size | 1 | EACH | |
| 62 | 62 | (b) High voltage cut off circuit PCB with cut off relay | 1 | EACH | |
| 63 | 63 | (c) Low voltage cut off circuit PCB with cut off relay | 1 | EACH | |
| 64 | 64 | (d) Micro switch of existing shape and sizes | 1 | EACH | |
| 65 | 65 | (e) Carbon brush (set of three) with brush holder | 1 | EACH | |
| 66 | 66 | (f) Voltage selector arm of auto transformer 100A | 1 | EACH | |
| 67 | 67 | (g) Potention meter | 1 | EACH | |
| 68 | 68 | (h) Push button switch as per existing shape and size | 1 | EACH | |
| 69 | 69 | (j) Indicator/Neon lamp of existing shape and size | 1 | EACH | |
| 70 | 70 | (k) Roatary switch for RY-YB-BR off RN-YN-BN | 1 | EACH | |
| 71 | 71 | (l) Roatary sensing cord (PCB) electronic sensing transformer | 1 | EACH | |
| 72 | 72 | (m) PCB conductor 12 pin | 1 | EACH | |
| 73 | 73 | (n) RC Network for servomotor of 10 Kg torque | 1 | EACH | |
| 74 | 74 | (o) Micro switch | 1 | EACH | |
| 75 | 75 | (p) Servo motor 10 Kg of torque | 1 | EACH | |
| 76 | 76 | (q) Output brass terminal and bush with nut and washer as per existing shape and size. | 1 | EACH |
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