NIT 04/2021-22

Amount

Electrical Part A Aug of Power Transformer from 2x1.6 MVA to 2x3.15 MVA, 33/11 KV at Jhabola S/Stn

Aug of S/stn at Jhabola

Power Transformer (3.15 MVA, 33/11 KV, ONAN, Outdoor)

3x185 mm2 (XLPE(11 kV, 3C, Al, Armoured))

Heat Shrinkable Termination Kit 3x185 mm2 Outdoor

Tapping of 11 KV Line for Stage-II.

11 KV Auto Recloser (15.5 kV, 630 A, 12.5KA)(interruption: Vaccum, Insulation: Solid Dielectric, with C/R Panel and without Communication) etc

11 KV Isolator(630 A, 25 KA, with ES)

Surge Arrester, 9 kV, 5 KA Station Class (Porcelain Type)

Installation of 33 KV VCB & Metering Equipment at 33/11 KV, 2x1.6 MVA Sub-Station at Jhabola

33 KV Tapping Structure

Prov. 36 KV ,1250 Amp. 25 KA breakng capacity outdoor type, Vacuum Circuit Breaker suitable for 3 phase auto re-closing complete with operating mechanism, auxiliary switches interlock control cabinets, multicore cables, terminal connectors, accessories etc. for above circuit breakers.

33 KV C&R Feeder panel with auto reclosing relay.

1250 Amps, 33 KV Isolator double break with earth blade

1250 Amps, 33 KV Isolator double break without earth blade

33 kV LA /Surge Arrester (30 kV, 10KA, Station class, ZnO, Porcelain)

33 KV CT Ratio 400-200/1-1-1 A, for main incomer

33 kV Potential Transformer (33 kV/110 V, 1Φ, Multi-Core, Outdoor), (1No. per Φ)

2x2.5 mm² control cable

4x2.5 mm² control cable

12x2.5 mm² control cable

Superstructure and Bus Bar

SUPER STRUCTURE

(a) R.S. Joists, size 12,800x250x125 mm 8 supports i.e. (8x12.8x37.3)=3819.52 kg say 3.81 MT

(b) M.S. 16 mm dia foundation Bolts with washers and nuts etc. @ 4.00 Kg per Structure = 8x4 = 32.00 Kg.

(c) M.S. channel Iron 125x65 mm, X-arm @13.1 kg/m at

(i) 11 Mtr. long = 4 No. = 11x4 = 44 Mtrs.

(ii) 5.5 Mtr. long =28 No. =5.5x28 = 154 Mtrs.

(ii) 0.750 Mtr. long = 16 No. = 16x0.750 = 12 Mtrs.

Total = 44+154+12 = 210 Mtrs.

(g) Nuts & Bolts with Washers off sizes

BUS-BAR

(i) 3 disc insulators tension string complete with fitting for 33 KV Line

(iii) ACSR conductor 150 mm² at 10 % wastage

(8x4.5+1x3.5)x3x1.1=130.35 say 130 m

For jumpers at 2 m average

15 sets I.e. 2x3x25x1.1=165 m

(iv) Tee connections

(v) PG clamps

EARTHING

EARTHING ( Layout of Earthmat for 33/11 KV Sub-Station with 02 Nos. Power Tfr.)

(i) M.S. Flat 50x6 mm for ground mat including 5% wastage & weighting 2.40 Kg/mtr (31x15+9x5) x1.05 = 535.50 Mtrs.= 535.50x2.40 = 1285.20 Kg say 1.285 MT.

(ii) Earthing pipe Electrode

(iii) M.S. Plates 150x150x6 mm for two connections @ 1.13 Kg = 1.13x16 = 18.08 kg.

(iv) M.S. Flat 50x6 mm for connection with mat to mat @ 4.80 Kg = 4.80x16 = 76.80 Kg.

(v) Nuts & Bolts galvanized 16 mm dia, 50 mm long @ 0.500 Kg = 0.500x16 = 8.00 Kg.

(vi) Chequred Plate cover 500x500x6 mm i.e. 11.80 Kg = 11.80x16 = 188.80 Kg.

iii) 20 mm round, 3.00 Mtrs. long & weighting 2.47 Kg./mtr 10 Nos. Electrode = 10x3x2.47 = 74.10 Kg.

Earthing of 33 KV yard & equipment & 22 KV or 11KV panels M.S. flat 50x6 mm,weight 2.4 kg/mtr At 5% wastage:-

(i) For 3 Sets of LA's at 4.20 Mtr each 4.2 x1.05 = 8.82*2=17.64 Mtr.

(ii) For 8 Nos.33 KV Super Structure at 11.50 Mtr each =8x11.50x1.05 =96.66 Mtrs.

(iii) For 2 Nos. VCB & CT body earthing at 10 Mtrs Each (2x10)x1.05= 21 Mtrs.

Total (i + ii + iii ) = 135.24 Mtrs, i.e. 135 Mtrs x 2.40 = 324 K.g =0.324 MT

(vi) GI wire No. 6 SWG for screening etc.

(vii) Eye block for screening

(viii) Turnbuckle for Screening

Replacement of Bare Conductor with AB Cable at 33 KV Jhabola S/Stn

11 KV AB Cable 3x120+95 mm2

Heat Shrinkable Termination Kit 3x95+70 mm2 Out-door type

33KV CT Foundations

33KV CT Foundations

Excavation in foundation tranches etc in earth work left upto 1.5 m stacking the excavated soil and disposing all surplus excavated earth with in lead of 20 mtr. P/J work 50%.

Providing and laying cement concrete 1:3:6 (1 cement:3 sand:6 graded stone aggregate 40mm nominal size) & curing complete excluding cost of cantering and shuttering in foundation & plinth.

P/L Cement concrete 1:1.5:3 (1 cement:1.5 sand :3 graded stone aggregate 20mm nomonal size) curing complete ecluding cost of form work and reinforcement for RCC work.

(a) Foundation footing bases of clumns and the like.

Providing mild Steel/Tor reinforcement for RCC work including bending binding and placing in position complete floor two level -Tor Steel.

Providing form work with steel plates 3.15 mtr. Thick welded with angle iron grames 30x30x5mm soil to gire a fair finish in cluding certaing , shuttering structing s and porping etc. height of proping and certering below supporing floors to ceeling not exceeding 4.00 mtrs and removal of the same for msiter renforced concrete work in vetaical surface such as walls (any hickness) partilines and the like

33KV VCB Foundations

Excavation in foundation tranches etc in earth work left upto 1.5 m stacking the excavated soil and disposing all surplus excavated earth with in lead of 20 mtr. P/J work 50%.

Providing and laying cement concrete 1:3:6 (1 cement:3 sand:6 graded stone aggregate 40mm nominal size) & curing complete excluding cost of cantering and shuttering in foundation & plinth.

P/L Cement concrete 1:1.5:3 (1 cement:1.5 sand :3 graded stone aggregate 20mm nomonal size) curing complete ecluding cost of form work and reinforcement for RCC work.

(a) Foundation footing bases of columns and the like.

Providing mild Steel/Tor reinforcement for RCC work including bending binding and placing in position complete floor two level -Tor Steel.

Providing form work with steel plates 3.15 mtr. Thick welded with angle iron grames 30x30x5mm soil to gire a fair finish in cluding certaing , shuttering structing s and porping etc. height of proping and certering below supporing floors to ceeling not exceeding 4.00 mtrs and removal of the same for msiter renforced concrete work in vetaical surface such as walls (any hickness) partilines and the like

Cable Trenches with R.C.C. Covers

Excavation in foundation tranches etc in earth work left upto 1.5 m stacking the excavated soil and disposing all surplus excavated earth with in lead of 20 mtr. (PW/JW 50%.)

Providing and laying cement concrete 1:3:6 (1 cement:3 sand:6 graded stone aggregate 40mm nominal size) excluding cost of centring and shuttering in: Foundations and plinth:

Providing and laying cement concrete 1:1.5:3 (1 cement :1.5: Sand : 3 graded stone aggregate 20 mm nominal size and curing complete excluding cost of form work in Foundation and plinth

Steel work welded in built up section trusses and framed work including cutting hoisting fixing in position and applying a priming coat of real lead paint in single sections completed of rolled steel

Providing mild steel/tor steel reinforcement for R.C.C work including bending, binding and placing in position complete up to floor two level.

Painting two coat (excluding priming cost on new steel and other metal surfaces with enamel paint brushing to give an even shade including cleaning the surface of all dirt,dust and other foregin matters

Providing form work with steel plates 3.15mm.thick welded with angle iron in frame 30x30x5mm. so as to give a fair finish including centring, shuutering, strutting and propping etc. with wooden battens and ballies, height of propping and centring below supporting floor to ceiling not exceeding 4 Mtrs. and removal of the same for insitu-reinforced concrete & plain concrete work in: Foundation, footings basis of columns etc. and mass concrete.

R.S Joist foundation

Excavation in foundation tranches etc in earth work left upto 1.5 m stacking the excavated soil and disposing all surplus excavated earth with in lead of 20 mtr. P/J work 50%.

Providing and laying cement concrete 1:3:6 (1 cement:3 sand:6 graded stone aggregate 40mm nominal size) & curing complete excluding cost of cantering and shuttering in foundation & plinth.

P/L Cement concrete 1:1.5:3 (1 cement:1.5 sand :3 graded stone aggregate 20mm nomonal size) curing complete ecluding cost of form work and reinforcement for RCC work.

(a) Foundation footing bases of clumns and the like.

Providing mild Steel/Tor reinforcement for RCC work including bending binding and placing in position complete floor two level -Tor Steel.

Providing form work with steel plates 3.15 mtr. Thick welded with angle iron grames 30x30x5mm soil to gire a fair finish in cluding certaing , shuttering structing s and porping etc. height of proping and certering below supporing floors to ceeling not exceeding 4.00 mtrs and removal of the same for msiter renforced concrete work in vetaical surface such as walls (any hickness) partilines and the like

Wooven mesh fencing around 33/11KV Sub-Station at Jhabola

Excavation in foundation,trenches etc.in earth work, lift upto 1.50 metres stacking the excavated soil not more than 3 meters clear from the edge of the excavation and then returning the stacked soil in 15 cm.layers, when required in to plinth sides of foundations etc. and then disposing of all surplus excavated earth as directed with in a lead of 20 mtrs. (PW/JW ) 50% each

Providing and laying Cement concrete 1:2:4(1Cement:2 Sand:4graded stone aggregate 20mm nominal size)and curing complete excluding cost of form work foundation and plinth

Steel work in single section i/c cutting, hoisting, fixing in position and applying a priming coat of red paint in R.S. joists, channels, angles etc.

Supply and fixing wovenplane G I wire fencing of mesh 50mm to 150mm to any type of standard rails, straining bolts.etc. including provision of binding wire staples etc.

P/F M.S pressed butt hinges with necessary screws -75 x 47 x 1.70mm

Providing & fixing oxidized M.S. sliding door bolt with bolts and nuts, screws etc. complete (Size 250x16mm)

Yard Aggregate

Excavation in foundation trenches etc.in earth workleft upto 1.5 mtrs stucing the excavation & oil level disposal of all excavation earth upto 20 mtrs level- pick work

Providing and filling of course sand layer in 5 cm thickness in 33/11 KV Yard & capicitor Bank of Sub-Stn. Namhol i/c supplying loading unloading complete

Spreading of 10 cm thick top layer of crushed hard stone aggregate 20 mm nomonal size i/c supplying loading unloading complete

Providing & sprinkling of medicine CRAMOXONE to reduce the groth of grass ex reduce the huge quantity of grass

Fire protection wall for 33KV sub station

Excavation in foundation tranches etc in earth work left upto 1.5 m stacking the excavated soil and disposing all surplus excavated earth with in lead of 20 mtr. P/J work 50%.

Providing and laying cement concrete 1:3:6 (1 cement:3 sand:6 graded stone aggregate 40mm nominal size) & curing complete excluding cost of cantering and shuttering in foundation & plinth.

P/L Cement concrete 1:1.5:3 (1 cement:1.5 sand :3 graded stone aggregate 20mm nomonal size) curing complete ecluding cost of form work and reinforcement for RCC work.

(a) Foundation footing bases of columns and the like.

Providing mild Steel/Tor reinforcement for RCC work including bending binding and placing in position complete floor two level -Tor Steel.

Providing form work with steel plates 3.15 mtr. Thick welded with angle iron grames 30x30x5mm soil to gire a fair finish in cluding certaing , shuttering structing s and porping etc. height of proping and certering below supporing floors to ceeling not exceeding 4.00 mtrs and removal of the same for msiter renforced concrete work in vetaical surface such as walls (any thickness) partilines and the like

1.6 MVATransformer foundation

Excavation in foundation tranches etc in earth work left upto 1.5 m stacking the excavated soil and disposing all surplus excavated earth with in lead of 20 mtr. P/J work 50%.

Providing and laying cement concrete 1:3:6 (1 cement:3 sand:6 graded stone aggregate 40mm nominal size) & curing complete excluding cost of cantering and shuttering in foundation & plinth.

P/L Cement concrete 1:1.5:3 (1 cement:1.5 sand :3 graded stone aggregate 20mm nomonal size) curing complete excluding cost of form work and reinforcement for RCC work.

(a) Foundation footing bases of clumns and the like.

Providing mild Steel/Tor reinforcement for RCC work including bending binding and placing in position complete floor two level -Tor Steel.

Providing form work with steel plates 3.15 mtr. Thick welded with angle iron grames 30x30x5mm soil to gire a fair finish in cluding certaing , shuttering structing s and porping etc. height of proping and certering below supporing floors to ceeling not exceeding 4.00 mtrs and removal of the same for msiter renforced concrete work in vetaical surface such as walls (any hickness) partilines and the like

Steel work welded in built up section trusses and framed work inclduing cutting hoisting fixing in position and applying a priming coat of real lead paint in beams joists channels angles teen flates with connecting plates or angle cleats in mair and cross beams hips etc.

Dismantling R.C.C. Transformer foundation

Demolition below G.L upto 1.50 metres depth including stacking of serviceable materials and disposal of unserviceable materials within 20 metres lead and including cutting the neceesary reinforcement and separating from R.C.C./R.B. work.

Construction of Oil sump

Excavation in foundation tranches etc in earth work left upto 1.5 m stacking the excavated soil and disposing all surplus excavated earth with in lead of 20 mtr. P/J work 50%.

Providing and laying cement concrete 1:3:6 (1 cement:3 sand:6 graded stone aggregate 40mm nominal size) & curing complete excluding cost of cantering and shuttering in foundation & plinth.

P/L Cement concrete 1:1.5:3 (1 cement:1.5 sand :3 graded stone aggregate 20mm nomonal size) curing complete ecluding cost of form work and reinforcement for RCC work.

(a) Foundation footing bases of columns and the like.

Providing mild Steel/Tor reinforcement for RCC work including bending binding and placing in position complete floor two level -Tor Steel.

Providing form work with steel plates 3.15 mtr. Thick welded with angle iron grames 30x30x5mm soil to gire a fair finish in cluding certaing , shuttering structing s and porping etc. height of proping and certering below supporing floors to ceeling not exceeding 4.00 mtrs and removal of the same for msiter renforced concrete work in vetaical surface such as walls (any hickness) partilines and the like

Powerlines

M/S DEVARYA ENGINEERING