Tender For Provision Of Fd Electrification At New Malari Under Ge 871; Supplying, design, loading, unloading, installing, testing and commissioning indoor type floor mountedstep down transformer 11000/433 volts (at no load) capacity 250 KVA, AC 3 phase 50 HZ double copper wound oil immerged naturallycooled with external cooling tube core type delta connected on primary side (HV) and star connected on secondary side (LV) in accordance with vector symbol DYn-11 (Vector group) with neutral brought out on secondry side (LV side) and having tapping at 2.5% interval from -7.5% to + 7.5% on HV side having facility to be changed voltage by means of hand operated off load tap changing gear. The maximum temperature rise should not exceed 50 degree celsius in oil and 55 degree celsius in HV/LV winding from ambiant temp when measured by resistance method after continious full load run in ambient temp of 40 degree celcius. The transformer shall confirm IS : 1180 and latest relavent IS and ECBC marked and shall comprise of the following:-(a) One cable box on HV side (primary side) with 3 Nos porcelain bushing with arcing horn suitable for 11 KV complete with bushing copper rods, nuts and washers.(b) One cable box on LT side (secondry side) consisting of four nos percelain bushing with copper rods, complete with nuts and washers with two nos cables glands, suitable for incoming/outgoing of 3 1/2 core 630 Sqmm LT 1100 volt grade XLPE insulated & PVC Sheathed armoured heavy duty cable including glands, joint and jointing materials complete.(c) Oil conservator with filter type drain valve and oil level indicator gauge.(d) De-hydrating breather (TRANSPARENT TYPE) with first fill dehyrating agent (silica gel)(e) Explosive vent.(f) Thermometer pocket with temperature indicator on tank cover.(g) Two earthing terminals on tank cover to facilitate fixing of 32x6mm galvanised iron earth strip for earthing of neutral & body. 2 (h) Rating plate and terminal marking plate.(i) Oil drain filter valve.(j) Lifting lugs.(k) Oil filling hole with cap/plug with connecting plate complete.(l) Air release valve.(m) Four plain solid cost steel detachable rollers.(n) Extra bushing for neutral, outside the LT cable box for providing independent earthing for neutral.(o) First filling of new and unused transformer oilIS-335/93 (fourth revision) marked filtered and tested for not less than 50 KV dielectricstrength at 2.5 mm air gap between testing electrodes.(p) Brick work foundation suitable for 250 KVA Step down transformer,having 100 mm PCC on top type C1 (1:3:6) at top and PCC B2 (1:4:8) at bottom complete all as directed at site.Note :-(i) Certificate of dielectric strength will be provided by contractor after initial filling of oil. 3 Excavation in trenches not exceeding 1.5 m wide and exceeding 1.5 min depthfor , erection of poles and not exceeding 3 m in depth and getting out in hard/dense soil complete all as specified and directed. 4 Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 min depthfor laying of cables, erection of poles, struts/stays, leveling of yard etc not exceeding 10 Sqm on plan and not exceeding 1.5 m in depth and getting out in hard/dense soil complete all as specified and directed.. 5 Material and labour for sand cushioning to underground cable screened un-washed river sand and punning for cushioning to cable complete all as specified and directed. 6 M&L sub-class B bricks, well burnt, laid breadth wise along the length for cable laid in trenches over sand cushion laid for UG Cable protection, complete all as specified and as directed. 7 Returning, filling in, including spreading, levelling watering and well ramming in layers n.exc 25 cm in soft/loose soil complete all as specified and directed. 8 Removing of excavated soilnot exc. 50 M and depositing where directed at a level n. exc 1.5 M above the startingpoints complete all as specified and directed. 9 Material and labour for Plain Cement concrete (1:3:6) type C -2 using 40 mm graded stone aggregate for foundation of poleplateform of transformeretc complete all as specified and directed. 10 Material and labour for Plain Cement concrete (1:4:8) type B-2using 40 mm graded stone aggregatefor bed of poles, complete all as specified and directed. 11 Material and labour Cement concrete (1:2:4) type C -1 using 20 mm graded stone aggregatefor pedestal of poles/copping including necessary frame work ,fair finishing to exposed surfaces using extra cement complete form, complete all as specified and directed. 12 Supply and fix Voltage stabilizer for automatic operation, three phase, naturally oil cooled, Outdoor type & designed for input variation between 300 V to 480 V with output voltage stabilized at 415 with accuracy ± 2.5% and speed of correction 8 Volts per second and of capacity 250 KVA including following.(i) By Pass facilitry in case of emergency (ii) Auto mannual selector switch(iii) Push button switch markedraise and down to control output voltage .(iv) screw driver adjustment to set the voltage to exact specified level.(v) Voltage meter with six way selector switch to indicate either input or output voltage.(vi) first fill of oil with oil level indicator.(vii) Lifting hook and moving wheel. 13 Supply and fix switch air break gang operated triple pole mechanically operated mounted on HT insulator (12 insulators),Non ferrous knife & steelframe with operating mechanism including spring loaded mechanismset of three working from ground level ,consisting of GI pipe of adequate length including locking arrangement with godrej lock of current rating 200 amps for 11000 volts complete all as specified and directed. 14 Supply and lay in trenches or passing through pipe/fixed to wall/pole and duct cable XLPE insulated screened PVC bedded, galvanized steel strip or wire armoured, electric power cable (heavy duty) 1100 Volt grade ISI marked confirming to IS 7098 Pt-I with stranded aluminium conductor of size 6 Sq mm 2 Core complete all as specified and directed. 15 Supply and lay in trenches or passing through pipe/fixed to wall/pole and duct cable XLPE insulated screened PVC bedded, galvanized steel strip or wire armoured, electric power cable (heavy duty) 1100 Volt grade ISI marked confirming to IS 7098 Pt-I with stranded aluminium conductor of size 10 Sq mm 2 Core complete all as specified and directed. 16 Supply and lay in trenches or passing through pipe/fixed to wall/pole and duct cable XLPE insulated screened PVC bedded, galvanized steel strip or wire armoured, electric power cable (heavy duty) 1100 Volt grade ISI marked confirming to IS 7098 Pt-I with stranded aluminium conductor of size 16 Sq mm 2 Core complete all as specified and directed. 17 Supply and lay in trenches or passing through pipe/fixed to wall/pole and duct cable XLPE insulated screened PVC bedded, galvanized steel strip or wire armoured, electric power cable (heavy duty) 1100 Volt grade ISI marked confirming to IS 7098 Pt-I with stranded aluminium conductor of size 25 Sq mm 3.5 Core complete all as specified and directed. 18 Supply and lay in trenches or passing through pipe/fixed to wall/pole and duct cable XLPE insulated screened PVC bedded, galvanized steel strip or wire armoured, electric power cable (heavy duty) 1100 Volt grade ISI Marked confirming to IS 7098 part-I with stranded aluminium conductor of size 35 Sq mm 3.5 Core complete all as specified and directed. 19 Supply and lay in trenches or passing through pipe/fixed to wall/pole and duct cable XLPE insulated screened PVC bedded, galvanized steel strip or wire armoured, electric power cable (heavy duty) 1100 Volt grade ISI marked confirming to IS 7098 pat-I with stranded aluminium conductor of size 50 Sq mm 3.5 Core complete all as specified and directed. 20 Supply and lay in trenches or passing through pipe/fixed to wall/pole and duct cable XLPE insulated screened PVC bedded, galvanized steel strip or wire armoured, electric power cable (heavy duty) 1100 Volt grade ISI marked confirming to IS 7098 pat-I with stranded aluminium conductor of size 70 Sq mm 3.5 Core complete all as specified and directed. 21 Supply and lay in trenches or passing through pipe/fixed to wall/pole and duct cable XLPE insulated screened PVC bedded, galvanized steel strip or wire armoured, electric power cable (heavy duty) 1100 Volt grade ISI marked confirming to IS 7098 pat-I with stranded aluminium conductor of size 185 Sq mm 3.5 Core complete all as specified and directed. 22 Supply and lay in trenches or passing through pipe/fixed to wall/pole and duct cable XLPE insulated screened triple enameled PVC bedded,screened with earthedsemi conducting compound in combination with copper tape,inner sheath or pvc tapegalvanized steel strip or wire armoured, confirming to IS-7098 part-II electric power cable (heavy duty) 11000 Volts grade with stranded aluminium conductor of size 95 Sq mm 3 Core complete all as specified and directed. 23 Material and labour for galvanised steel tubing light gradeof size 40 mm NB for protection of cable/earth continuity conductor fixed to poles/walls/roof or laid in floors, road crossing/in ducts fixed with clamps, bolts, nuts and washers etc complete all as specified and directed. 24 Material and labour for galvanised steel tubing light gradeof size 50 mm NB for protection of cable/earth continuity conductor fixed to poles/walls/roof or laid in floors, road crossing/in ducts fixed with clamps, bolts, nuts and washers etc complete all as specified and directed. 25 Material and labour for galvanised steel tubing light gradeof size 80 mm NB for protection of cable/earth continuity conductor fixed to poles/walls/roof or laid in floors, road crossing/in ducts fixed with clamps, bolts, nuts and washers etc complete all as specified and directed. 26 Supply and fix cable jointing kit for 11KV (earthed) grade cable for outdoortermination heatshrink type with jointing material and accessories suitable for 3 core XLPE armoured Al conductor of size 95 Sqmm connecting and testing complete all as specified and directed. 27 Supply and fixing of Steel tubular swaged poles complete with cast iron base plate, finial taper plug, bolts, nuts and screws as specified type 410 SP-55 (11.0 metres long) complete all as specified and directed. 28 Material and labour for steel structure, cross arms bracing supports ,clamps, back plates of any type, section incl. nuts, bolts, washers, welding ,bending cold or hot in any size and shape all as directed Includingtwo coats of aluminiumpaints over a coat of red oxide primerincl preparation of surface all complete all as specified and directed. 29 M&L 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 of size 32x6 mm galvanised iron strip complete all as specified and directed. 30 M&L 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 of size 20x3 mm copper strip complete all as specified and directed. 31 M&L for Anti climbing device, Spikes type fabricated out of MS Bars(round/Squre) or flat including nuts,bolts washers,welding in halves made to shape to suit the cross section of the poles clamped and properly secured complete all as specified and directed. 32 S & F Danger Notice Board of 1.6 mm thick mild steel sheet, vitreous enamelled white,with letters, figures and conventional skull and bones in signal red colour incl name of Feeder and fixed with MS clamp bolts and nuts of approved size, for HT 25 x 20 cm size complete all as specified and directed. 33 M&L for earthing in replacement complete with Copperearth plate electrode 600 x 600 x 3.15mm thick directly burried in the ground (Earth pit not less than 2.25 m deep below ground level) with top edge of earth plate not less than 1.50M below the normal ground level, Copper strip of size 20x3mmfrom earth plate/ electrode to test point (upto max distance of 7.50M is included in unit rate) and connected to earth plate & earth test point by means of bolts, nuts, check nuts andwashers of galvanised iron or steel, 15mm bore GI pipe light grade including necessary fittings for protection of earthing wire, watering pipe 20mm bore GI medium grade, concrete chamber in PCC (1:4:8) type D-2 using 40 mm grade aggregate, coping shall be in PCC (1:3:6) type C-1 using 20 mm grade aggregate and internal surfaces of concrete chamber shall be renderd 12mm thick plaster in CM (1:4), funnel with wire mesh of 22 gauge (0.63 mm) 8 mesh per linear incl 50mm thick cover of RCC (1:2:4) type B-1 using 20mm grade stone aggregate reinforced with 8mm MS deformed bar @ 75 mm C/C both ways, char coal dust and common salt all as shown in electrical plate No. 3 of SSR Part-I (2009) includingall necessary excavation & earth work and removal of surplus soil to a distance n. exc 50M andconnection from DB to earth electrode with same GI wire alongwith protection pipe and testing on completion complete all as specified and directed. 34 M&L for earthing in replacement complete with galvansided steel earth plate electrode 600 x 600 x 6.0mm thick directly burried in the ground (Earth pit not less than 2.25 m deep below ground level) with top edge of earth plate not less than 1.50M below the normal ground level, GI wire 4.0mm dia from earth plate/ electrode to test point (upto max distance of 7.50M is included in unit rate) and connected to earth plate & earth test point by means of bolts, nuts, check nuts andwashers of galvanised iron or steel, 15mm bore GI pipe light grade including necessary fittings for protection of earthing wire, watering pipe 20mm bore GI medium grade, concrete chamber in PCC (1:4:8) type D-2 using 40 mm grade aggregate, coping shall be in PCC (1:3:6) type C-1 using 20 mm grade aggregate and internal surfaces of concrete chamber shall be renderd 12mm thick plaster in CM (1:4), funnel with wire mesh of 22 gauge (0.63 mm) 8 mesh per linear incl 50mm thick cover of RCC (1:2:4) type B-1 using 20mm grade stone aggregate reinforced with 8mm MS deformed bar @ 75 mm C/C both ways, char coal dust and common salt all as shown in electrical plate No. 3 of SSR Part-I (2009) includingall necessary excavation & earth work and removal of surplus soil to a distance n. exc 50M andconnection from DB to earth electrode with same GI wire alongwith protection pipe and testing on completion complete all as specified and directed. 35 M&L for earthing in replacement complete with Galvanised iron earth plate electrode 600 x 600 x 6mm thick directly burried in the ground (Earth pit not less than 2.25 m deep below ground level) with top edge of earth plate not less than 1.50M below the normal ground level, GI strip of size 32x6mmfrom earth plate/ electrode to test point (upto max distance of 7.50M is included in unit rate) and connected to earth plate & earth test point by means of bolts, nuts, check nuts andwashers of galvanised iron or steel, 15mm bore GI pipe light grade including necessary fittings for protection of earthing wire, watering pipe 20mm bore GI medium grade, concrete chamber in PCC (1:4:8) type D-2 using 40 mm grade aggregate, coping shall be in PCC (1:3:6) type C-1 using 20 mm grade aggregate and internal surfaces of concrete chamber shall be renderd 12mm thick plaster in CM (1:4), funnel with wire mesh of 22 gauge (0.63 mm) 8 mesh per linear incl 50mm thick cover of RCC (1:2:4) type B-1 using 20mm grade stone aggregate reinforced with 8mm MS deformed bar @ 75 mm C/C both ways, char coal dust and common salt all as shown in electrical plate No. 3 of SSR Part-I (2009) includingall necessary excavation & earth work and removal of surplus soil to a distance n. exc 50M andconnection from DB to earth electrode with same GI wire alongwith protection pipe and testing on completion complete all as specified and directed. 36 Supply,install,testing and commissioning of LT Panel board of to accomodate under mentioned items, CPRI approvedoutdoor type, floor mounted, factory made suitable for 415 volt, 3 PH, 4 wire, 50 HZ, AC supply system having bus bars chamber with copperbus bars duly insulated by insulation of RYB colour 630 Amps rating mounted on porcelain insulators .The panels shall be factorymade, double door, made out of 3.15 mm thick MS sheettotally enclosed dust, vermin and rust prooffront operated, front and rear opening with locking arrangement fixed with MSangle iron frame of size 50X50X5 mm duly embedded in PCC platform and duly powder coated with 7 tank process with colour as directed including internal wiring with multistranded copper conductor cable of suitable sizeincllugs and cable gland to incoming and outgoing cable all as directed at site and comprising of the following:Note : Bottom portion of the panel should be at minimum height of .75 Mtr from the ground level.(i) MCCB 4 pole 400 Amps 50 kA - 01 Nos(ii) MCCB 4 pole 160 Amps 25 kA - 05 Nos(iii) MCCB 4 pole 100 Amps 25 kA - 01Nos (iv) MCCB 4 pole 63 Amps 25 kA - 02Nos (v) MCB TP - 32 Amp -01 Nos(vi) Digital timer switch -01 Nos (vii) Multifunctional VAF meter, PF meter - 1 No (viii) RYB Neon indicating lamp -1 set for each outgoing and incoming (ix) MS work incl angle iron frame and PCC work Space for mounting of additional MCB In future. 37 Supply,install,testing and commissioning of LT Panel board of to accomodate under mentioned items ,CPRI approved ,outdoor type, floor mounted, factory made suitable for 415 volt, 3 PH, 4 wire, 50 HZ, AC supply systemhaving bus bars chamber with aluminium bus bars duly insulated by insulation of RYB colour 200 Amps rating mounted on porcelain insulators .The panels shall be factorymade, double door, made out of 3.15 mm thick MS sheettotally enclosed dust, vermin and rust prooffront operated, front and rear opening with locking arrangement fixed with MSangle iron frame of size 50X50X5 mm duly embedded in PCC platform and duly powder coated with 7 tank process with colour as directed including internal wiring with multistranded copper conductor cable of suitable sizeincllugs and cable gland to incoming and outgoing cable all as directed at site and comprising of the following:Note : Bottom portion of the panel should be at minimum height of 0.75 Mtr from the ground level.(i) MCCB 4 pole 63 Amps 25 kA - 01 Nos(ii) MCB 2 pole 25Amps 10 kA - 12 Nos (iii) Multifunctional VAF meter, PF meter - 1 No (iv) RYB Neon indicating lamp -1 set (v) MS work incl angle iron frame and PCC work(vi) Space for mounting of additional MCB In future.(vii) Internal wiring including copper lugs 38 Supply,install,testing and commissioning of LT Panel board of to accomodate under mentioned items, CPRI approved outdoor type, floor mounted, factory made suitable for 415 volt, 3 PH, 4 wire, 50 HZ, AC supply system having bus bars chamber with aluminium bus bars duly insulated by insulation of RYB colour 200 Amps rating mounted on porcelain insulators .The panels shall be factorymade, double door, made out of 3.15 mm thick MS sheettotally enclosed dust, vermin and rust prooffront operated, front and rear opening with locking arrangement fixed with MSangle iron frame of size 50X50X5 mm duly embedded in PCC platform and duly powder coated with 7 tank process with colour as directed including internal wiring with multistranded copper conductor cable of suitable sizeincllugs and cable gland to incoming and outgoing cable all as directed at site and comprising of the following:Note : Bottom portion of the panel should be at minimum height of 0.75 Mtr from the ground level.(i) MCCB 4 pole 63 Amps 16 kA - 01Nos (ii) MCB 2 pole 32Amps 10 kA - 04 Nos (iii) MCB 2 pole 25Amps 10 kA - 01 Nos (iv) Multifunctional VAF meter, PF meter - 1 No (v) RYB Neon indicating lamp -1 set for each outgoing and incoming (vi) MS work incl angle iron frame and PCC work(vii) Space for mounting of additional MCB In future.(viii) Internal wiring including copper lugs 39 Supply,install,testing and commissioning of LT Panel board of to accomodate under mentioned items, CPRI Approved outdoor type, floor mounted, factory made suitable for 415 volt, 3 PH, 4 wire, 50 HZ, AC supply system having bus bars chamber with aluminium bus bars duly insulated by insulation of RYB colour 200 Amps rating mounted on porcelain insulators .The panels shall be factorymade, double door, made out of 3.15 mm thick MS sheettotally enclosed dust, vermin and rust prooffront operated, front and rear opening with locking arrangement fixed with MSangle iron frame of size 50X50X5 mm duly embedded in PCC platform and duly powder coated with 7 tank process with colour as directed including internal wiring with multistranded copper conductor cable of suitable sizeincllugs and cable gland to incoming and outgoing cable all as directed at site and comprising of the following:Note : Bottom portion of the panel should be at minimum height of 0.75 Mtr from the ground level.(i) MCCB 4 pole 100 Amps 25 kA - 01 Nos(ii) MCB 2 pole 25Amps 10 kA - 04 Nos (iii) MCB 2 pole 20Amps 10 kA - 2 Nos (iv) MCCB 4 pole 63Amps 10 kA - 01 Nos (v) Multifunctional VAF meter, PF meter - 1 No (vi) RYB Neon indicating lamp -1 set for each outgoing and incoming (vii) MS work incl angle iron frame and PCC work(viii) Space for mounting of additional MCB In future.(ix) Internal wiring including copper lugs 40 Supply,install,testing and commissioning of Bus bar chamber of to accomodate under mentioned items,CPRI approved outdoor type, floor mounted, factory made suitable for 415 volt, 3 PH, 4 wire, 50 HZ, AC supply system having bus bars chamber with aluminium bus bars duly insulated by insulation of RYB colour 200 Amps rating mounted on porcelain insulators having outgoin min 06 Nos.The panels shall be factorymade, double door, made out of 3.15 mm thick MS sheettotally enclosed dust, vermin and rust prooffront operated, front and rear opening with locking arrangement fixed with MSangle iron frame of size 50X50X5 mm duly embedded in PCC platform and duly powder coated with 7 tank process with colour as directed including internal wiring with multistranded copper conductor cable of suitable sizeincllugs and cable gland to incoming and outgoing cable all as directed at site and comprising of the following:Note : Bottom portion of the panel should be at minimum height of 0.75 Mtr from the ground level.(i) MCCB 4 pole 63 Amps 16 kA - 01 Nos(ii) Aluminium bus bar with provision of 06 nos of outgoing separately for RYB and N (iii) Multifunctional VAF meter, PF meter - 1 No (iv) RYB Neon indicating lamp -1 set for each outgoing and incoming (v) MS work incl angle iron frame and PCC work(vi) Space for mounting of additional MCB In future.(vii) Internal wiring including copper lugs 41 Supply,install,testing and commissioning of LT Panel board ofto accomodate under mentioned items,CPRI approved outdoor type, floor mounted, factory made suitable for 415 volt, 3 PH, 4 wire, 50 HZ, AC supply system having bus bars chamber with aluminium bus bars duly insulated by insulation of RYB colour 400 Amps rating mounted on porcelain insulators .The panels shall be factorymade, double door, made out of 3.15 mm thick MS sheettotally enclosed dust, vermin and rust prooffront operated, front and rear opening with locking arrangement fixed with MSangle iron frame of size 50X50X5 mm duly embedded in PCC platform and duly powder coated with 7 tank process with colour as directed including internal wiring with multistranded copper conductor cable of suitable sizeincllugs and cable gland to incoming and outgoing cable all as directed at site and comprising of the following:Note : Bottom portion of the panel should be at minimum height of 0.75 Mtr from the ground level.(i) MCCB 4 pole 160 Amps 25 kA - 01 Nos(ii) MCCB 4 pole 63 Amps 25 kA - 02 Nos(iii) MCCB 4 pole 32Amps 10 kA - 02 Nos(iv) MCCB 4 pole 63Amps 16 kA - 01 Nos (v) On load change over switch of capacity 160 amp 4P-01 nos (vi) Multifunctional VAF meter, PF meter - 1 No (vii)RYB Neon indicating lamp -1 set for each outgoing and incoming (viii) MS work incl angle iron frame and PCC work(ix)Space for mounting of additional MCB In future.(x)Internal wiring including copper lugs 42 S&F HT lightening arrestor expulson type complete with all fittings transmission class discharge capacity 65 kilo amp suitable for 11 kv complete all as specified and directed. 43 Supply and fix Pin type porcelain vitreous whiteinsulator 11000 volt grade 150 mm in height and 150 mm dia including galvanised mild steel strap of size 31x3mm , 12 mm dia insulators bolts, washers and nuts complete all as specified. 44 Supply and fix disctype insulator , vitreous porcelain whitebrown or green , over all dimension 140 mm high 240 mm dia and clearance of hole 25.5 mm complete all as specified. 45 Material and labour forACSR conductor straightening properlyon insulators and binding with aluminum taps /binding wire /conductor jumper etc complete ofsize 6/1x2.59mm (Weasel) .
