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| 1 | Material and labour for attending major break downs on HT11 KV lines, UG cables including replacement of insulators/ conductors/ cross arms & laying of temporary cables etc complete all as specified and directed.Note:- (i) Items used will be measured & paid seperately under relevant item of Sch.(ii) The contractor has to attend break down immediately on short notice as & whenrequired with T&P and transport on receipt of information on the direction of Engineerin charge.(iii) If contractor fails to attend break down, the contractor should face penalty and amount of 1% work done to be deducted from RAR. |
| 2 | Excavation in any type of soil in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth and getting out complete. |
| 3 | Returning filling with earth obtained from excavation including spreading watering and consolidation in layers not exceeding 25 cms thick complete. |
| 4 | Removing surplus soil to a distance not exceeding 50 m and depositing at a level not exceeding 1.5 m above the starting point complete. |
| 5 | M & L for dry Sand cushioning to under ground cablelaid in trenches for laying of HT/LT UG cables 8 cm wide before laying the cable and 15 cm after laying and punned down to a depth of 10 cmas per MES SSR Part-I (2009) all as specified anddirected.Note: Punned thickness shall be measured and paid to the contractor. |
| 6 | M&L for sub class ‘B brick, designation 75 for cable protection cover, laid dry, flat, transversally along the length of cable, on sand cushioning, with width equal to the length of the brick, complete, all as specified and directed. |
| 7 | Material and labourfor PCC 1:4:8 type D-2using 40mm graded stone aggregate as in base of pole, coping of above Ground level etc complete all as specified and directed. |
| 8 | Material and labourfor PCC 1:3:6 type C-2 using 40mm graded stone aggregate as in foundation of pole complete all as specified and directed. |
| 9 | Servicing of HT,11 KV,VCB,400 Amps capacity, 50 Hz,breaking Capacity 25 KA by drawing out from panel chamber including removing carbon deposits from contact points,greasing and tightening all fixed and moving contacts for smooth functioning including replacement of tripping and closing coils,30 Volts,DC and servicing of solenoid switch all as specified and as directed. |
| 10 | Calibration of IDMTL relays through primary and secondary injection method and testing of 11 KV VCB complete re-setting where required and ensuring proper functioning of earth fault and overcurrent relays all as directed.(Note - Contractor to submit test sheet) |
| 11 | Supply and fix in repair/replacement Current transformer, 11 KV double burden, 100/50/5 ratio and suitable for 11 KV, VCB all as specified and as directed. |
| 12 | S&F in repair/replacement Vaccum interupter bottle suitable for 11 KV,VCB,400 Amps capacity,cat No: VS-12014 as per sample. |
| 13 | S&Fin repair/replacement spring charge motor suitable for11 KV, VCB, A/C 230 Volt, 50 Hz complete all as directed. |
| 14 | Dismantling of unserviceable bus bar bushings from existing 11 KV bus bar chamber and Supply and fix new bushings suitable to match existing bushings complete. |
| 15 | Removing the burnt out fixed contact assembly from the HT,VCB,11 KV, 400 Ampssupply and fix fixed contact assembly of copper strip all as specifed and directed. |
| 16 | All as per item No 15 here-in-before but of moving contact assembly. |
| 17 | S&F in repair/replacement Current Coil 110 Volts, DC operated suitable for IDMTL earth fault and overcurrent relays including removing existing unserviceable relays including testing and commissioning all as specified and as directed. |
| 18 | S&F in in repair/replacement Steel tubes ISI marked light grade galvanised with all fittings fixed to walls / poles / laid in road crossing etc as required of size 80 mm bore |
| 19 | M&L steel tubular swaged pole 11 metre long complete with cast iron base plate finial taper plug, bolts, nuts and secrew all as specified type 410 SP-55 (11.0 metres long) including painting upto 1.5M above PCC coping in black and white strips 5 Nos each 30 CM high starting from botting of pole. The pole shall be coated with two coats of black bituminous paint throughout internally and externally up to the planting depth. The remaining portion of the exterior shall be painted with on coat of red oxidor primer including dismantling of old damaged HT poles of any type and size for taking credit complete all as specified and as directed by Engr-in-Charge. |
| 20 | M&L for mild steel work (structural) as in cross arm bracing supports, clamps fabricated from structural steel section including nuts, bolts, washers, welding, bending, drilling holes for bolts in any size or shape as required andone primer coat with red oxide primer one under coat & one finishing coat of aluminium paint complete. |
| 21 | Dismantling cross-arms of M.S. channel or angle sections etc. complete and setting aside for re-use with in 50m |
| 22 | S&F repair/replacement pin type porcelain vitreous browninsulator 150 mm high including one galvanised mild steel spindle, two GI washers and one GI nut suitable for 11000 volts grade complete. |
| 23 | S&F in repair/replacement disc type insulator, porcelain, vitreous 145 mm high & 255 mm dia ball & socket type brown, single disc assembly for tension with tension clamps for conductors of working voltage 11 KV complete. |
| 24 | Suuplying and fixingin repair/replacement loop type insulator, porcelain,vitreous white brown or green, large size with overall dimensions 90x140mm and clearance dia of hole 25.5 mm complete. |
| 25 | S&F in repair/replacement of post insulator 11 KV grade complete all as specified and directed by Engr-in-Charge. |
| 26 | S&F in repair/replacement of ACSR conductor for over head line Aluminium conductor steel reinforced size as per existing complete all as specified and directed by Engr in charge. |
| 27 | S&F in repair/replacement Danger notice plate of 1.6mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with M.S. clamps, bolts and nuts of approved size, for HT, 25x20cm all as specified and directed by Engr- in -charge. |
| 28 | S&F in repair/replacement outdoor type , triple pole mechanically operated, mounted on insulators and steel frame, with operating mechanism worked from ground level vertical/ horizontal mounting air break switch 11 KV, 200 amps consisting of hot dip galvanized channel iron base having 3 Nos 11 KV post insulators per phase, copper or copper alloy high pressure heavily tinned contacts plated MS arcing horn capable of breaking the magnetizing current with horizontal connecting bar GI pipe as down rod levers coupling and operating handle with locking arrangements manufactured as per IS : 9921 with and including operating rod of 25 mm bore medium grade GI pipe of suitable length to operate from ground level complete. |
| 29 | S& F repair/replacement lightning arrestor expulsion type pole mounting transmission class discharge capacity 65 K amps completewith three mounting brackets complete for HT 11 KV system all as specified and as directed |
| 30 | Supplying and making in repair indoor cable end terminal joint heat shrinkable type suitable for 3 core 11 KV grade XLPE insulated cable of size 50 to 120 sqmm. |
| 31 | Supplying and making in repair outdoor cable end terminal joint heat shrinkable type suitable for 3 core 11 KV grade XLPE insulated cable of size 50 to 120 sqmm. |
| 32 | Supplying and making in repair straight through cablejoint heat shrinkable type suitable for 3 core 11 KV grade XLPE insulated cable of size 50 to 120 sqmm |
| 33 | Supplying, laying, testing and commissioningin repair/replacement XLPE insulated screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with stranded aluminium conductor 11 KV grade (Earthed system) laid in trenches / on pole / in ducts or through sleeves of size 120 sqmm 3 core complete. |
| 34 | Supplying, laying, testing and commissioningin repair/replacementXLPE insulated screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with stranded aluminium conductor 11 KV grade (Earthed system) laid in trenches / on pole / in ducts or through sleeves of size 95 sqmm 3 core complete. |
| 35 | M & L of hiring of cable fault locator machine for HT cables ,workingvoltage 11KV to find out the fault in underground trench at different location up to 500 RM after locate fault and jointing and testing the cable all as specified and directed by Engr- in -charge. Note : (a) Excavation and earth work & joints will be paid and measured separately in relevant item. |
| 36 | Restringing/restretching aluminium conductor on existing over head lines including necessary binding with binding wire with insulator , connections of incoming and out going cables complete all as specified and directed. |
| 37 | M&L for painting of9.0/11.0 m long swaged poles withcross arm/clamps with aluminium paint one under coat and one finishing coatafter preparation of old steel surfaces including making ofalternate colour bands red & white 30 cms width upto a height of 1.5 m from pole coping with synthetic enamelled paint & writing pole numbers on round base of 125 mm dia with yellow synthetic paint complete. |
| 38 | Opening / stripping of the step down transformer, 11 KV/0.433 KV, draining of oil, lifting the core & coil assembly, washing and cleaning dust, dirt & sludge deposit from all parts, servicing of tap changer, making internal connections and re-assembling the transformer after repair work, providing new cork sheet gasket packing 5 mm thick, nuts, bolts washers etc as required, transportation, loading, unloading from sub station to workshop & back including its installation at original or any other place, testing & commissioning complete for capacity (a) 50 KVA to 100 KVA |
| 39 | All as per srl item No. 38.01 here-in-before but of capacity 150 KVA to 250 KVA |
| 40 | Renewal of HV coil (11KV), wound with super enamelled copper wire of same guage including necessary insulating materials and baking the coil in vacuum furnace upto 400 KVA capacity transformers complete. |
| 41 | Reconditioning of copper wound LV coil (433 V) including necessary insulating materials, and baking coil in vacuum furnace upto 400 KVA capacity transformers complete. |
| 42 | Labour and equipments for shifting of transformer upto 200 KVA capacity after disconnection from one location to another for restoration of supply during failure of transformer of any location or redistributution of load as required including connection and commissioning of shifted transformer and disconnection & setting aside existing transformer complete. |
| 43 | Labour and equipments for opening up top cover of transformers installed in position, disconnecting connections and reconnecting after renewal of worn out / defective parts, re fixing the top cover in position including new best quality cork sheet gasket (not less than 5 mm thick) complete. (Note:- Renewal of worn out / defective parts not included).(a)50 KVA to 100 KVA |
| 44 | Same as above but for 150 KVA to 250 KVA |
| 45 | S&F in repairs HV bushing of 12 KV grade with gasket suitable for transformer of following capacities:- (a)50 KVA to 100 KVA |
| 46 | Same as above but for 150 KVA to 250 KVA |
| 47 | S&F in repairs LV bushing of 1.1 KV grade with gasket suitable for transformer of following capacities:- (a)50 KVA to 100 KVA |
| 48 | All as per srl item No. 44.01 here-in-before but of capacity 150 KVA to 250 KVA |
| 49 | S&F in repairs HV brass set stem of 12 KV grade suitable for transformer of following capacities:-(a)50 KVA to 100 KVA |
| 50 | All as per srl item No. 45.01 here-in-before but of capacity 150 KVA to 250 KVA |
| 51 | S&F in repairs LV brass set stem of 1.1 KV grade suitable for transformer of following capacities:-(a)50 KVA to 100 KVA |
| 52 | All as per srl item No. 46.01 but of capacity 150 KVA to 250 KVA |
| 53 | M&L for preparation of old painted surface of transformer & spray painting withtwo coats of synthetic enameled grey paint complete for the following capacities:-(a) Upto 100 KVA |
| 54 | All as per srl item No. 47.01 but of capacity 150 KVA to 250 KVA |
| 55 | M&L for filtration / dehydration of insulating oil of transformer on site to achieve dielectric strength 50 KV or above (when tested with 2.5 mm gap electrode) installed at Sila Garrison and different locations of 14 and 15 sectors and its units. complete. |
| 56 | Supply and topping up transformer oil of dielectric strength 50 KV at 4mm gap in transformers of various cap installed in various locations complete all as specified and directed.Make of Transformer oil: Power Oil / Indian Oil / Rinkyt Apar/ Savitha.Notes: (a) New Transformer oil in the transformer will be filed only after filteration and dehydration of existing transformer.(b) Transformer oil shall be supplied in sealed barrel with test result and test certificate. |
| 57 | S&F in repair/replacement transformer breather assembly oil seal type made of cast aluminium body powder coated as per RAL 7032 shade filled with silica gel of capacity 500 grams complete. |
| 58 | S&F repair/replacement oil level indicator clean prismatic type with necessary gasket etc in renewal suitable for transformer up to 200 KVA capacity complete. |
| 59 | S&F in repair/replacement drop outfuse link 11 KV, 100 amps consisting of channel galvanized iron base, having 2 Nos 11 KV postinsulators per phase including fuse carrier of SRBPtube with heavily tinned non ferrous metal parts & spring loaded phosphor bronze contact manufactured as per IS: 9385 complete. |
| 60 | Servicing of existing G.O.D 11 KV including replacement of handle, male/ female contact assembly, worn out nuts, bolts, washers etc & providing petrolleum jelly for smooth operation complete. |
| 61 | Labour & tools for Trimming and cutting of tree branchesupto 100 mm girth of any location coming across 11 KV HT over head line clearing the line around 2m single/ both sides and, and disposal of branches from site exeeding 50m and not exceeding 250m from site complete all as specified and directed.Note:- (i) Length of span is approx 50 to 70 RM.(i) Due care is to be given while trimming/cutting the tree branches that there should no damage to over head line conductor/pole, In case due to any negligerice, damage is caused to be make good/renewal by the contractor from his own resources and nothing extra is admissible.(i) AIl Safety to labourer must be adhered by the contractor during trimming and cutting of tree branches. |
| 62 | Providing labour and tools for cleaning the sub station open areas, removing grass, shrub, roots, stone / brickbats etc by surface excavation not exceeding 30 cm deep, leveling the area and keeping it maintained upto the date of completion of contract complete. |
| 63 | Supply and spray glycol chemical of approved quality for prevention of weed growth grass in outdoor sub stations complete all as spe cified and directed. |
| 64 | M&Lin repair/replacementfor earthing complete with galvanized steel earth plate electrode of size 60cm x 60cm x 6mm thick buried directly in ground (earth pit not less than 2.25 meters below ground level) with top edge of earth plate not less than 1.5 meters below ground level surrounded on all sides by 150 mm thick charcoal & common salt startingfrom ground below earth plateupto 150mm above GI plate in alternate layersconnected to galvanized earth strip 25x4 mm by means of nuts, bolts, thimbles, chuck nuts, washers of GI or steel,PCC (concrete chamber of size 300 mm x 300 mm x 300 mm inside dimension) shall be PCC 1:3:6 type C-1 using 20mm graded stone aggregate with fair finish ,internal surface of concrete chamber shall be given 15mm thick plaster in CM 1:4, funnel with wire mesh of 22 gauge,80 mm thick PCC pit cover 320 mm x 320 mm of RCC 1:2:4 type B-1 using 20 mm graded stone aggregate reinforced with XPM, JALLI pit all as shown in electrical plate No 3 of MES SSR Part-I (2020) as specified includingprovision of 40mm dia medium grade GI pipe for earth strip protection and 20 mm dia for watering complete ,all excavation andearth work & connecting the earthing to an earthing test point /LT Panel as specified and testing on completion for desired result complete all as specified and directed by Engr-in-charge. |