PROVISION OF HT POWER SUPPLY FROM GCA POWER HOUSE TO MAFI SUBSTATION NO.01 AND PROVISION OF HT/LT SUPPLY VCB FROM INDEPENDENT FEEDER WITH ALLIED WORK FOR MAFI AND TECHNICAL AREA UNDER GE(AF) KALAIKUNDA

Amount

Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out in any kind of soil ,complete all as specified and directed Note : Manual excavation to be done. During excavation if any damage occured to existing cable any type/ water pipe line, it will be contractor responsibilty to get it repair and make functional by providing jointing kit etc without any extra cost. Contractor has to repair it within 24 hrs so that essential service can not be effected due to such damage.If contractor fails to repair it within 24 hrs penalty @ Rs 500/-per hour will be charged to contractor. In this GE decision will be final.

Returning filling in any type of soil , including, spreading levelling watering and well ramming in layers not exc. 25 cm complete all as specified and directed.

Removing surplus excavated material from site not exceeding 50 mtrs from starting point and depositing where directed at level not exceeding 1.5 mtr above the starting point all as specified and directed.

M&L providing sand cushioning with a layer of clean, dry, fine sand for protection of electric cable laid in trenches/ducts, punned down to desired thickness complete all as specified and directed. (Note: For payment purposes only punned down thickness of sand shall be measured )

M & L for laying old size sub class ‘B’ brick for PVC/ XLPE under ground cable protection in trench, layed in the manner that width of brick to be peperndicular to the axis of cable , over LT under ground cable complete all as specified and directed.

M & L for cement concrete in foundation, filling and mass concrete in M10 (Nominal Mix) using 40 mm nominal size graded crushed stone aggregate complete all as specified and as directed.

Materials and Labour for plain cement concrete (1:2:4) type B0 using 12.5 mm graded aggregate in lintels up to 1.5m clear span, cills, steps; seismic and other similar bands, plinth courses, string courses, lacing courses, parapets and railings up to 60 cm in height, copings, kneelers, apex stones, bed plates, kerbs, water troughs and the like including weathering, slightly rounded or chamfered angles throating, as directed including necessary from work complete all as specified and directed.

Supply, laying, jointing, testing and commissioning HT cross-linked polyethylene (XLPE) insulated cable for working voltages of 11000V, PVC sheathed, armoured, 3 core with reduced neutral conductors (3 core), nominal cross sectional area of main conductor 120 sqmm, stranded aluminium conductor, ISI marked as per IS 7098(Part-II): 2011 including FRLS PVpvc outer sheet ,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.

Supply, laying, jointing, testing and commissioning HT cross-linked polyethylene (XLPE) insulated cable for working voltages of 11000V, PVC sheathed, armoured, 3 core with reduced neutral conductors (3 core), nominal cross sectional area of main conductor 95 sqmm, stranded aluminium conductor, ISI marked as per IS 7098(Part-II): 2011 including FRLS pvc outer sheet ,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.

Supply, laying, jointing, testing and commissioning cross-linked polyethylene (XLPE) insulated cable for working voltages of 1100 V, PVC sheathed, armoured, 3½ core with reduced neutral conductors (3½ core), nominal cross sectional area of main conductor 95 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.

Supply, laying, jointing, testing and commissioning cross-linked polyethylene (XLPE) insulated cable for working voltages of 1100 V, PVC sheathed, armoured, 3½ core with reduced neutral conductors (3½ core), nominal cross sectional area of main conductor 400 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.

Material and labour for HT 11 KV (Earthed) grade heat shrinkable end termination jointing kit outdoor type complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 to 185 sqmm complete all as specified and as directed.

Material and labour for HT 11 KV (Earthed) grade heat shrinkable end termination jointing kit indoor type complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm complete all as specified and as directed.

Supply and fixing cable jointing kit for 1.1 KV grade cable for End termination joint kit complete with Jointing material heat Shrink type and accessories suitable for 3 ½ core XLPE, armoured, Al conductor cable of size 400 sq mm, indoor type as specified and directed by Engr in charge.

Material and labour for 100 mm dia galvanized iron tube medium grade for cable protection, supporting to poles, plinth protections, road crossing, trenches, footpath etc, including all fitting clamps, nut, bolt and washers complete all as specified and directed.

Material and labour for 80 mm dia galvanized iron tube medium grade for cable protection, supporting to poles, plinth protections, road crossing, trenches, footpath etc, including all fitting clamps, nut, bolt and washers complete all as specified and directed.

Horizontal boring of holes by mechanical means, at under road/ pavement / hard standing etc.,not exceeding 15 Metres in length, in any type of soil, suitable for passing through 80 to 100 mm bore, , galvanised steel tubing,and making good distrubed surfaces as per existing specification with and including 80 mm to 100mm dia galvanized iron tube medium grade for, road crossing, trenches, footpath etc, including all fitting clacomplete all as specified and directed. i) All the precaution to be taken by the contractor before drilling the bore. The contractor has to take plan of existing cables any type and pipe line in existing area before drilling the bore. (ii) Any damage to existing cables any type and pipe line in the way of drilling the bore will be repaired and make good by the contractor within 24 hours. No extra cost will be paid in this account. (iii) Contractor has to get the survey of route, length and depth for boring before quoting the rate.

Supply and fixing copper strip of size 20 x 3 mm as earth continuity conductor or main earthing lead fixed on "V" type porcelain insulator, 4 BM, heavy duty ( ceramic bus bar support insulator off white colour of suitable for mounting strip of 20 mm wide x 3 min thick) saddle to wall, buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required 20 x 3 mm copper strip brazing to each joints and connected with by providing brass nut bolts and washer all as specified and directed by Engr in Charge. Note : Insulators shall be provided on every 50 cm. (Minimum 2 x insulators to be provided in every 1 x metre of strip and rate of the same deemed to included in quoated rates)

Supply, fixing, grouting and painting cable route indicator made up of Factory made Precast RCC slab of size 100 cm x 40 cm x 80 mm thick duly embossed with "MES HT Cable" / "MES LT Cable",Size of Cable and grouting on the route of HT/LT cable complete all as specified and directed. Notes:- (i) Unit rate of item includes excavation, PCC foundation for erection of route indicator. (ii) Slab of route indicate to be provided with min 4 Nos x 8 mm diameters TMT bars along length of slab with 7 Nos cross bar 6 mm dia in reinforcement with shuttering. (iii) Route indicator RCC slab to painting with two coat of red colour synthetic enamel paint over on one coat of white primer base.

Supply & Fixing for thermoplastic(polycarbonate) junction box for test point without terminal block of dimension 130 x 180 x 77 mm IP 66 halogen free and weather proof including four hexagonal anticorrosive screws for out door installation including taking down unserviceable one complete all as specified and directed.. Make : Hensel- Cat part No. KF 1000H or as equivalent make of Cape.

Material & labour for Test point terminal block made of gun metal or phosphorus bronze size 75 x 75 x 25 mm drilled and screwed incl 3 Nos 8mm dia 25mm long hexagonal head screws for fixing strips to test point including necessary fixing arrangement to fix test point terminal block in junction box all as specified and directed. including taking down unserviceable one complete all as specified and directed.

Supplying and laying synthetic Rubber insulated mats 2.5 mm thick for voltage upto 11 KV for electrical purpose as per IS 15652-2006, (superseding IS 5424) suitable for electrical shock safety of sizes 2m x 1m as specified and directed.

Material & labour for earthing complete with copper earth plate electrode 600 mm x 600 mm x 3 mm thick burried directly in ground (Earth pit not less than 4 mtr deep below ground level) with top edge of the plate not less than 3.25 mtr below ground level connected to copper strip 20 x 3 mm as earth lead by brass nut bolts washer including brazing the copper strip with copper plate as shown in electrical plate No 3 connected to earth test point including necessary excavation for earth pit in hard dense soil, rocky / disintergate rock, filling charcoal and salt around the plate in layers , filling the pit with low resistivity agriculture soil free from stones, to be bring from out side defence land and mixed with Bentonite , (4 bags of 25 Kg each ), construction of inspection pit ( earth pit chamber) of brick work of size 600 x 600 x 600 mm with PCC copping of 1 :1.5: 3, 12.5 mm aggregate A1 with MS sheet 2.8 mm plate cover on frame of angle iron of size 40 x 40 x 5 mm with , wire mess, funnel, test point, 40 mm dia GI protection pipe light grade and 20 mm GI peforated pipe for watering etc complete and testing on completion. The electrode and lead shall be of copper all as specified and directed by Engr-in-charge (Copper strip upto 7.5 RM will be included in the item rate and copper strip beyond 7.5 RM will be measured seperately(Note : (i) Contractor shall use low reisistivity fresh agriculture soil , mixed with 4 x Bags of bentonite clay of 25 Kg each for refilling the pit to achive the desired resistance. (ii) copper strip will be laid below 60 cm from ground level and connected to test point through plinth protection (iii) Necessary cost of repair to plinth protection as per existing specification and connected plate and earth continuity conductor by providing 2 x brass nuts bolts and brazing of joints, bringing argiculture soil from out side defence land and cost of 3 x Bags of bentonite deemed to be included in the item rate. (iv) Contractor has to clear the side and disposed off the excavated soil from pit on completion of work. (v) Contractor has to submit test report of earthing after completing the earthing. (vi) Bentonite clay should be Conf to IS 6186: 1986. (vii) The cost of Copper strip of size 20X3 mm from top of earth plate upto 7.5 meter above ground level is deemed to be included in the unit rate of above item.and copper strip beyond 7.5 RM will be measured seperately. (viii). All the joints in copper strip and connection with Earth Plate to be welded through brazing and in addition by proving brass nut bolt and washer are deemed to be included in the unit rate. (viiii) Cost of brazing / welding and nut bolts are deemed to be included in the unit rate. (ix) Cost includes removal of excavated soil upto a distance of 100 mtrs.

Supply and installation of HT 11 KV, 3 phase, 50 Hz totally enclosed metal clad switchgear complete with Vacuum circuit breaker having rupturing capacity 250 MVA, overload and earth fault protection, ammeter, voltmeter and of rating of 630 Amp (1 outgoing and 1 adapter panel) the proposed panel should be coupled and match with the bus bar of existing make panel by adapter panel/copper bus trunk / copper cable of current capacity of 1000 Amp including necessary fabrication work, copper busbar, nut, bolts,washers, welding etc are required for the job of the folllwings accessories : (a) Nominal System voltage, Frequency, No of Phases: 11KV, 50Hz,3 phase. (b) System Neutral Earthing : Solidly Grounded (c) Feeder Current : 630 A (d) Bus Sectionalizer Current : 1000 A (e) Design ambient temperature : 40 Deg C (f) Busbar : 99% electrolytic Copper Busbar 1000A (g) BIL : 75KVp/28KV rms (h) Enclosure Protection : IP4x (i) Busbar Compartment : copper (j) VCB with Tulip contact (k) Low-voltage for relay/ metering – Air insulated compartment. (l) Cable connection – Air insulated compartments. (m) One OC+EF numerical Relay with inbuilt Trip ckt supervision (n) 2 Nos Trafo auxiliray relay & 1 (one) No Master trip relay (o) CT Ratio : 200-100/5+5A,STC : 25KA/1sec,0.5/5P10,Burden : 2.5VA/2.5VA (p) 1 (One) No Digital ammeter & MFM for each panel.

Note :(i) The VCB shall be installed by service engineer from the manufacturer only including making necessary arrangement for connection of cable. The new HT XLPE cable shall be connected to VCB at locations as directed by Engr-in-charge.Make BHEL /ABB /Siemens/Andrew Yule /Schneider/ITE Gurgaon (ii) Pre-dispatch inspection at factory premises of OEM shall be carried out be the Rep of the Accepting Officer. (iii) Contractor shall make all arrangement on site for testing of tripping mechanism/ setting of relay functionality of VCB on short circuit/ earth fault/ over voltage/ over current etc. All testing equipments required for trip test shall be arranged by contractor. Tripping test of VCB on earth fault, over current and over voltage to be carried out by contractor before completion of work to the entire satisfaction of MES rep. Same testing arrangement to be done at the time of precommissioning test of SEI. Cost of the same is deemed to be included in unit rate of item. All required calibration to be done by contractor. (iv) Contractor shall submit general arrangement of VCB and get approval of drawing and make of VCB before placing the order for procurement. (v) All arrangement required for the installation of outgoing VCB in MES installation from existing panel to be done by contractor without any extra cost and other misc work and spare required as per manufacturer,s instruction deemed to included in qoated rates .

Supply and installation of Ring main unit (RMU) one incomer two outgoing SF6 filled load break switch each of 11 KV ,630 Amp, STC 20 KA for 3 sec, motorized with configaration 2 Load break switch & one VCB with the following details : (a) Two (2) Nos Isolators motorized with earthing switches, connecting the RMU to incoming and outgoing main loop, suitable for 1 provision for connecting upto 1RX3CX 300 sqmm HT power cable. (b) One (1) No circuit breaker (CB) motorized with earthing switches, connecting the RMU to distribution transformers/feeder loop or to indoor having CT details : 3 Nos- current transformer - CTR-50/1A, 10P10, 2.5 VA . Provision of connecting upto 1RX3CX300 sqmm HT power cable. (c) One numerical series trip & self power release having non-directional O/C and E/F protection for each outgoing feeder . FPI needs to be provided LBS with E/F & O/C indication having in built Push button for Reset. (d) All necessary Current transformers for protection. (e) Capacitor voltage dividers serving live-line cable indicators. (f) Paint shade : Power coated PP RAL 7032/ thickness : 100 Micron +/- 25. (g) In this case, the RMU has single enclosure with three functional units comprising of two LBS & one VCB. (h) Partial discharge test to be conducted on all gas vessel during manufacturing process of RMUs & test report shall be provided during inspection. (i) Rated operating sequence of Circuit breaker-O-3mm-CO-3min-CO. (j) Non ferite & Non magnetic SS304 grade stainless of minimum 2.5 mm thickness. Stainles steel enclosure welding shall be at least 5 way robotic welding type tank. (k) Outdoor Enclosure Protection : IP54. (l) The unit shall be internal arc proof and tested for 21 KA/1sec for SF6 gas vessel as well as cable compartment and totally safe for human beings.

(m) RMU should not have any louvers on any external side temperature rise test report to submit without louvers. (n) Integral Helium Gas leakage test to be conducted on every gas vessel to check for minor leakages which cannot be checked through with sniffers before SF6 gas filling. All as specified and as directed by Engr in charge. Note : (i) The RMU shall be installed by service engineer from original manufacturer only including making necessary arrangement for connection of cable. The new HT XLPE cable shall be connected to RMU/VCB at locations as directed by Engr-in-charge. (ii) Contractor shall submit general arrangement of RMU and get approval of drawing and make of RMU before placing the order for procurement. (iii) Pre-dispatch inspection at factory premises of OEM shall be carried out be the Rep of the Accepting Officer. (iv) Pre- commissioning of the HT euipment to be carried out by SEI after installation of euipment at site by the contractor and all the arrangements required for testing deemed to be included in the quoted rate and other misc work and spare required as per manufacturer,s instruction deemed to included in qoated rates .

Bharat Sales Corporation

BHOWMICK ENTERPRISES INDIA

ROY CONSTRUCTION