Increasing Capacity of 33 KV Substation Gandhinagar, Rakesh Marg, Lalkaun and Bemheta under Business Plan 2025-26

Supply of following Material Supply for neutral link L type Galvanised Structure i) Galvanised Channel (100x50x6)mm

ii) Galvanised Angle (50x50x6)mm

Supply for cable support Galvanised Structure i) Galvanised Channel (100x50x6)mm

ii) Galvanised Angle (65x65x6)mm

Supply for copper bus bar support T-type Galvanised Structure i) Galvanised Channel (100x50x6)mm

ii) Galvanised Angle (50x50x6)mm

iii) G.I. Pipe 110mm 3m long

Galvanized Structure for 33 KV Lightening arrester with Plinth & Foundation as per specification in RESPO

Supply of 90 lbs rail pieces for T/F (44.64Kg/Mtrs.)

Supply of M.S.Round 32mm Dia for earthing.

Supply for Water level earthing i) G.I. pipe size 40 mm inner dia & thickness 2mm

ii) Solid copper cone Approx 225 mm long and 750 gm in weight

iii) Copper wire 6 SWG

iv) Copper flexible earthing strip of size 50x6mm for neutral

v)supply and erection of chemical pipe earthing with acceseries

Supply of ready mixed primer & ISI mark Aluminium Paint & ISI mark synthetic enaimel green paint for painting of installed all Structure & G.I.Strip.

Galvanized Structure for 33 KV Fuse set as per specification (01 No.) i) G.I.Channel (125x65x6)mm 3.5Mtr long for Vertical Structure.

ii) G.I.Angle (75x75x6)mm 2.8Mtr long for Horizental Structure.

Top Channel (M.S.100x50x2240mm long)

Dropper Channel (M.S.100x50x2028mm long)

Supply of ACSR Panther Counductor

Carriage of following material from PVVNL Store 33KV Lightening arrester

33KV Bus isolator 800A,

33KV Line isolator 800A,

33KV Post insulator

33KV CT 400/200/1-1-1A

11KV VCB for I/C CTR 1200/600/5A, 350MVA

11KV Outgoing CTR 200/100/5A 350 MVA

11KV XLPE cable 3x185mm²

11KV XLPE cable 3x300mm²

11KV Cable J/kit outdoor type for 3x300mm / 3x185mm

11KV Cable J/kit indoor type for 3x300mm / 3x185mm

Cable H.T.XLPE 33KV 3x300SQ.M.M

Cable Box O/D 33KV 3x300 XLPE

PCC Pole 11.0Mtr long.

Disc insulator Polymeric type 70KN

Disc fitting B&S type 70KN

33kv fuse set

Earthing Rod 2540x20 mm

Stay Rod 16x1800mm

11KV composite Polymeric Pin insulator.

11KV Fuse Set

11KV TPMO

11 KV Lightning arrestor

Carriage of M.S.Scrap from site to PVVNL Store

Construction of Plinth for 33/11 KV 20 MVA Transformer of size 3.92x4.46x1.0Mtr (height upto normal ground level as attached in drawing) Excavation of earth minimum 1Mtr depth or upto firm land is approached (3.97x4.51)

Laying of lean concrete over firm soil in ratio of 1:6:12 i.e 1 part of cement, 6 part of coarse sand & 12 parts of sand ballast (3920x4460x100mm)

Foundation of brick work in ratio of 1:4 on lean concrete in 1st Class brick work of side walls size 0.23 m wide (3920x4460x400mm)

Layering of Plain CC upto hight of 40mm from brick work.

Formation of tor steel jal as per IS 1785:1979 of (10 mm dia bar x12 mm dia steel bar on) 10 mm bar 200 mm away each & 12 mm bar 150mm away each other

Foundation of CC work in 1:2:4 upto the height of 170mm above for jal.

Formation of tor steel jal as par IS 1785:1979 of 10mm dia bar both ways 200mm away form each other on CC work.

Layering of Plain CC upto hight of 40mm from the foundation of CC work as in 2.6 Point

Plain cc in ratio of 1:2:4 upto 110 mm height on the foundation as mentioned point 2.7 & Mounting of Rail piece 90Lbs / YD or standard and M.S Angle 50x50x6mm with 150 mm long hook at suitable interval with in it & leaving 50x40mm grove for T/F wheel along the Rail 90Lbs

Formation & Laying of steel Tor jal as par IS 1785:1979 of 10mm dia bar of 400mm away both way adjacent to Rail piece & M.S.Angle.

Layering of Plain CC upto hight of 40mm oabove tor jar & 12mm plaster on plinth top side & fixing of M.S.Angle of 50x50x6mm on four side of plinth.

Installation for 33/11KV 20MVA T/F Safe Shifting of 20MVA, 33/11 KV, Power transformer from out side of switchyard to near Power transformer plinth in Switchyard.

Erection & Installation of 20MVA Power transformer on Power Transformer plinth by fixing all accessories like radiators, conservator tank, filling the transformer oil to desired level and ensuring that there is no leakage, complete job in all respect.

Installation for 33/11KV 10MVA T/F Safe Shifting of 10MVA T/F 33/11 KV, Power transformer from out side of switchyard to near Power transformer plinth in Switchyard.

Erection & Installation of 10MVA Power transformer on Power Transformer plinth by fixing all accessories like radiators, conservator tank, filling the transformer oil to desired level and ensuring that there is no leakage, complete job in all respect.

Providing & Laying of G.I. Earth strip of size 50x6mm for earthing of new indoor equipments by connecting it existing indoor earthing.

Providing & Laying of G.I. Earth strip of size 50x6mm for connecting the Earth Mat with steel structure & chain link fencing’s posts. The work also includes cutting, bending, traight-tening, over-lapping and welding the Earth Strip with Earth Mat and various steel structures by using high quality Arc welding in already digged trenches.

Painting of Earth Strip of size (50x6) mm with one coat of ready mixed primer with two coats of ISI mark synthetic channel green paint.

Earthing of L.A's & Transforer neutral : Making of delta with 03 No. 03mtr. 32mm dia M.S. round bar electrode and Fabrication of 32 mm dia bar for 3.0 m long electrodes and digging them into ground so that the top of M.S. Round/Electrode remains at least 0.75m in air and jointing of earth electrode with the delta by using 75mm long piece of M.S. Round using high quality Arc welding and paints of joints with black bituminious paint.

Fabrication and erection of neutral earthing L Type support made of M.S. Channel size 100x50mm uncluding supply of neutral bond. Structure shall be 4 Mtr. Long with 1 Mtr. Arms. Structure shall be grouted in ratio 1:3:6 in block size 300x300x700mm and painted of welding joint with one coat of Ready Mixed primer and Two coat of enamel Aluminium paint work includes connecting neutral bushing rod of power Transformer and M.S. Earthing strip with the help of flexible copper bond, M.S. Bolt and washer.

Fabrication and erection of cable support made of two pieces of M.S. Angle (65x65x6)mm, 2.75 meter long, joined to each other by means of 5 Nos. M.S. Flat (50x6) mm pieces of size 750 mm long each by welding at equal intervals and grouting in a block of size (300x300x700)mm in C.C. 1:3:6 (cement, coarse sand and stone ballast) complete and painted of welding joint with one coat of Ready Mixed primer and Two coat of enamel Aluminium paint. Work includes providing of three Nos. M.S. clamps made of (50x6)mm M.S. Flat for holding the cable including nuts and bolts.

Fabrication and grouting of M.S. Frames 3.60 mt. long for support of copper Bus Bar. Bus Bar will be provided in L.V. side of Power transformer. The M.S. frame shall be made of M.S. channel (100x50)mm in ‘T’ shape. Providing 2 Nos. support of M.S. Angle iron (50x50x6)mm, 0.60mt. long below the top channel, drilling of 3 Nos. hole on the top channel for fixing of 11 KV pin insulator and painted of welding joint with one coat of Ready Mixed primer and Two coat of enamel Aluminium paint and grouting the frame in C.C. ratio 1:3:6 (cement, coarse sand and stone ballast) in a block of size (300x300x700) mm. The work also includes the fixing of 3 Nos. 11 KV pin insulator with pin and binding the copper Bus Bar with the pin insulator by Aluminium binding wire in complete.

Supply & Fabrication of copper bus bar of size (2500x80x10)mm for 20MVA / (2500X50X6) for 10 MVA in L.V. side of 20MVA/10MVA 33/11 KV, power transformer, Work includes connection of outside bus bar in L.V. side busing rod of Power Transformer and other side with outdoor 11 KV cable box as well as providing empire tape and H.T. tape etc. for proper insulation work.

Providing & Fixing 150mm dia 2mm thick 3M long G.I.Pipe over 33KV/11KV XLPE Cable before mounting the 2No. Cable on double pole / Cable support structure. The work includes fixing of Clamp, sealing of top and bottom end of the M.S.Pipe. One end of M.S.Pipe is to be buried under earth about 500mm.

Installation of 11 KV Switchgears in Control Room Carefully & safely shifting of 11 KV switchgear panels from outside to inside the switch gear room grouting foundation of bolts in C.C. ratio of 1:2:4 (including cutting of RCC floor and finishing of RCC floor) as per requirement placing, aligning and fixing of 11 KV anchor GI bolts and nuts of proper size for completion of work in all respect.

Proper fixing and making bus bar connection in between two switch gears after proper cleaning. Work also include proper insulation, taping by empire, PVC and H.T. tape etc.

Earthing of 11 KV Switch Gears: Earthing of 11KV switchgears by means of M.S. earth strips (50x6) mm connecting to 4 Nos. earthing electrodes of 32 mm dia. (including fabrications of earthing electrodes) 3m long on either side (as per RESPO drg. RES-40). welding of M.S.Earth strips (50x6)mm and also laying of the M.S.Round 32mm dia in trench of control room and connecting to both sides squares including cost of M.S. earth strip (50x6)mm approx. 40m length and earthing of all indoor equipment by laying and providing M.S.earth strip (50x6)mm including cutting & welding etc.

H.T. Power Cable Laying: Laying 11 KV, (3x300) mm2 XLPE, Cable from power transformer to 11 KV incoming switch gear in the cable trench 0.50 m wide, 0.90m depth. Providing 150 mm local sand for cushion beneath and 150 mm above the cable (quality of local sand required 0.375 cum/m in length). The cable shall be dully protected by brick. On both side of cable by laying brick vertically and bricks would also be laid bricks along the single cable (minimum 18 Nos. of bricks are to be laid top and outer side along the single cable. The work includes digging of trenches, laying of cable in under ground trenches, joining of terminal’s, back filling of earth and testing and commissioning of power cable etc. Spare cable shall be left over and laid in the trenches in shape of 6 m ring at both ends.

Laying and dressing of 11 KV 3x300 mm2 power cable in air/Trench.

Laying 11 KV, 3x185mm2 XLPE, Power cable from outgoing switch gear to 11 KV double poles in the cable trench 0.50m wide, 0.90m depth. Providing 150 thickness mm local sand for cushion beneath and 150mm above the cable (quantity of local sand required 0.375 cubm/m in length). The cable shall be duly protected by brick. On both side of cable by laying bricks vertically and bricks would also be laid horizontally on top of vertically laid bricks along the single cable (minimum 18 Nos. of bricks are to be laid top and outer side along the single cable. The work includes digging of trenches, laying of cable in under ground trenches, joining of terminal’s, back filling of earth and testing and commissioning of power cables etc. Spare cable shall be left over and laid in the trenches in shape of 6m rings at both ends. At the end of feeder cables, where the cable is to be laid across pucca/main road, 100 mm dia M.S. pipe will be weared over the cable in the cable trench for the protection of cable.

Laying and Dressing of 11KV 3x185mm² Power Cable in Air.

Preparation of 11 KV Power Cable ends: Making of 11 KV XLPE Heat shrinkable outdoor jointing kits 3x185Sq.mm/3x300Sq.mm after duly plumbing and taping of cable, providing, fixing and crimping of proper size good quality lugs

Making of 11 KV XLPE heat shrinkable indoor jointing kits 3x185Sq.mm/3x300Sq.mm in switch gears after carefully removing the insulation of cable, providing and crimping of proper size of lugs, plumbing and taping of cable with good quality available insulation tape with J/Kit boxes, Fixing and insulating of lugs on cable with switch gear complete in all respect.

Supply & Laying of different size of (2x2.5)mm2 Armoured copper control cables i.e. from Buchholz realy to Marshalling box Marshalling box to indication protection board in switch gear room, 33 KV CT’s to CT’s Junction Box, 33 KV CT, 33 KV PT, V.C.B. Control Panel Junction Box to 33 KV VCB control panel and control panel to 33 KV VCB outdoor operating mechanism panel from T/F etc. in the cable trench including making proper connection at Buchholz Relay, Marshalling box and indication board as per required for installed equipment.

Supply & Laying of different size of (4x2.5)mm2 Armoured copper control cables i.e. from Buchholz realy to Marshalling box Marshalling box to indication protection board in switch gear room, 33 KV CT’s to CT’s Junction Box, 33 KV CT, 33 KV PT, V.C.B. Control Panel Junction Box to 33 KV VCB control panel and control panel to 33 KV VCB outdoor operating mechanism panel from T/F etc. in the cable trench including making proper connection at Buchholz Relay, Marshalling box and indication board as per required for installed equipment.

Construction of 11 KV Feeder Double Poles: Erection and grouting of 2 Nos. PCC Pole 11.0Mtr long for making DP Structure including fabrication fixing of M.S. Channel, M.S.Angle, TPMO, Fuse Set, disc, insulators, pin insulators No. Plate, Danger board, barbed Wire (02 Kg per Pole), Stone Pad etc. the work includes supply and fixing of necessary clamps size 75x10mm with M.S.Nuts bolt & washer, bolts and washers. The work also includes grouting of Double pole support in C.C. 1:3:6 (cement, Core sand & stone ballast) in block of size (0.45m x 0.45 x 1/6 length of the pole) including earthing of Double pole with M.S. earthing rod complete in all respect.

Providing & wearing of 110 mm dia 3mtr long G.I pipe in the feeder cable of size of (3x185/3x300)mm2 XLPE 11KV power cable before making the outdoor cable boxes. The work includes the sealing of G.I.Pipe, top end and lower end of the pipe is to be buried in to the ground about ½ m and proper dressing of cable etc. The work includes lifting, mounting and clamping of 11 KV feeder cable boxes on the feeder with double pole structure and making connections including supply of cable mounting clamps etc.

Painting of Structures Painting of the following structure with one coat of ready mixed primer and two coats of ISI Mark Aluminium paint after rubbing with sand paper to the surface of the structure including labour and T&P complete in all respect. Painting of Substation Structures

Installation of 33 KV Isolators: Assembling and installation of line/Bus Isolator on the isolator structure. Adjusting of operating mechanism in proper alignment so as to ensure smooth operation of the same. In case of Line Isolator proper operation of earth links shall also be ensured. The work includes fabrication for proper fixing if required.

Installation of 33 KV Lightning Arrestors: Assembling and installation/mounting of 3 Nos. lighting arrestors on the L.A.’s structure/terminal gentry, complete with earthing and line connections. The work includes fabrication for proper fixing, if required.

Installation of 33 KV Fuse Set: Assembling and installation of fuse set on the fuse set structure. The work includes fabrication for proper fixing, if required.

Installation of 33 KV Post Insulators: Installation of 3 Nos. PI on structure. The work includes fabrication for proper fixing, if required.

Installation of 33 KV C.T.’s: Installation of 3 Nos. C.T.’s on the C.T’s structure. The work includes fabrication for proper fixing, and also clamps for C.T Connection if required to complete the work.

33 KV CT’s Junction Box: Providing & fixing of junction box of size (400x400x150) mm made of M.S. sheet of 16 SWG in between 33 KV CT’s & control panel. The work also include making proper connection on the junction box and making all connection in between CT’s and control panel complete as per manufacture’s panel drawing including testing and commissioning of work etc. complete the work.

33 KV Bus Bar Jumpering: Jumpering, including clamping/binding with ACSR Panther conductor/33KV 3x300mm2 XLPE cable with providing P.G.Clamp & other accessories.

Laying of 33KV, 3x300Sq.mm XLPE Cable in the Pucca trench / air on cable Riser Double Pole, existing cable trench,

Making of 33KV Outdoor type cable end termination by heat shrinkable XLPE Cable Jointing Kits and crimping with proper size aluminium lugs. Work includes providing Aluminum lugs, insulating tapes etc as per specifications.

Testing & Commissioning (To provide required No. of technicians to work on power T/f, HT/LT panels & 33KV line during testing as assisting technical hands of test team during commissioning & energisation).

Construction of fire protection wall size 5Mtrx4.5Mtr above ground level (as per approved Drawing). Providing required Civil Material by the Contractor.

Hiring of D/G Set including carriage, loading, unloading & operating charges (With fuel) at 33/11KV Substation under construction in case L.T. Supply is not available near S/s within prescribed accessible limit. 63KVA, Three phase, D/G Set for fabrication of different structure at Substation.

Shifting of old 01 Nos. unused 33KV Control Pannel & 01 No. FRTU / 33kv L.A.

Temporary foundation for renovation / new plinth of existing of 10MVA T/F

Dismantling, Shifting, Assembling, Testing & charging of existing 10MVA T/F on new temporary Plinth.

Carriage including,loading ,unloading at both side of old material received from site to PVVNL store including empty cable steel drum.

Making for alignment/Fabrication of new I/C VCB to existing O/D VCB & Fabrication of Bus Bar.

Grouting D/P & Concreting of PCC pole 11 mtr Long for feeder double pole complete with all accessories

Dismantling, Shifting, of existing 05 MVA T/F from old Plinth with accessories

Water level earthing with boring and lowering complete with all accessories

PG Clamp

Dismantling of old structure

M/S RAGHAV and BROTHERS (BID ID -5533263)

Hi-tech power transmission (BID ID -5516166)

SHIVAM ENTERPRISES (BID ID -5526619)

M/s S.S. Refregeration (BID ID -5522988)