Installation of 02 nos. of 33KV VCBs at Main Sub-station of Basundhara (W) OCP, Mahalaxmi Area

Supply and fabrication of 10 mtr long G.I. H-structural post having ISMC (150x75x6)mm 2nos. (335.66 kg for 2nos.), Base plate (450x450x10)mm 1no. (15.90 kg/plate), Stiffner plate (450x100x10)mm 2nos. (7.07 kg for 2nos.), Stiffner plate (144x100x10)mm 4nos. (4.52 kg for 4nos.), Gusset plate (270x100x6)mm 28nos. (35.61 kg for 28nos.), 700mm long ISMC (100x50x5)mm 2nos. (13.38 kg for 2nos.). Total weight = 412.14 kg for 1no.

Supply and fabrication of 7 mtr long G.I. H-structural post having ISMC (150x75x6)mm 2nos. (234.86 kg for 2nos.), Base plate (450x450x10)mm 1no. (15.90 kg/plate), Stiffner plate (450x100x10)mm 2nos. (7.07 kg for 2nos.), Stiffner plate (144x100x10)mm 4nos. (4.52 kg for 4nos.), Gusset plate (270x100x6)mm 22nos. (27.98 kg for 22nos.), Total weight = 290.33 kg for 1no.

Erection of 10.0 mtr high G.I. H-pole structure in cement concrete 1:2:4 (1 cement: 2 coarse sand (zone-lll) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources) foundation complete with excavation, PCC, reinforcement etc. as per the direction of Engg Incharge).

Erection of 7.0 mtr high G.I. H-pole structure in cement concrete 1:2:4 (1 cement: 2 coarse sand (zone-lll) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources) foundation complete with excavation, PCC, reinforcement etc. as per the direction of Engg Incharge).

Supplying of two lengths of G.I. channel iron 100 mm x 50 mm x 6mm (9.2 kg./mt.) double pole cross arm of 2.8mtr. long for three wire 33 KV overhead line conductors complete with through bolts and nuts for clamping to the poles, 50 mm x 6 mm G.I. flats welded on one side of channel iron and with bolts & nuts on the other side for tying the cross arms together including drilling holes for insulator pins / fittings, bolts, nuts & washers etc. and painting with primer and finish paint as reqd.

Erection of double pole 3-wire cross arm for 11KV / 22KV / 33 KV over head lines as required.

Supplying & erection of a set of cross bracing frame work for 33KV O/H line double pole structure having four members fabricated out of 65 mm. x 65mm. x 6 mm G.I. angle iron to form a rectangle of minimum size 2800mm. width x 3200mm. height complete with 50 mm x 6 mm G.I. flat iron clamps, bolts & nuts including drilling holes for insulator pins, bolt and nuts etc. & painting with primer and finish paint as reqd.

Supplying and erection of a set of three 11 KV disc insulators for 33 KV overhead lines with galvanised insulator fittings, ball and socket type and complete with galvanised strain clamps, bolts, nuts, washers etc. as required.

Supplying and erection of 33 KV pin insulator complete with large steel head G.I. pin, nuts, washers etc. as required.

Dismantling of overhead lines comprising of copper / aluminium overhead conductor, G.I. wire, cross arms, insulators etc. as reqd.

Dismantling of pole / street light standard / strut embeded in cement concrete foundation etc. as reqd.

Erection of ACSR conductor of 7/3.35 mm to 7/4.00 mm diameter and above including binding etc. as required.

Supplying & erection of 7/3.15 mm dia G.I. stay wire @0.469kg/mtr as overhead running earth / lightning conductor including binding with existing structures as reqd.

Supplying & fixing of aluminium pad clamp for ACSR (DOG) conductor complete with G.I. nuts, bolts & washers as reqd.

Supplying & fixing of 65mm dia round aluminium clamp for 33KV bus tube of switchyard complete with G.I. nuts, bolts & washers as reqd.

Supplying of 2 x 2.5 sq mm PVC / XLPE insulated round steel armoured copper cable of 1100V grade confirming to IS specifications (ammended up to date).

Supplying of 12 x 2.5 sq mm PVC / XLPE insulated round steel armoured copper cable of 1100V grade confirming to IS specifications (ammended up to date).

Supplying of 16 x 2.5 sq mm PVC / XLPE insulated round steel armoured copper cable of 1100V grade confirming to IS specifications (ammended up to date).

Excavation for cable trenches in soft soil, depth upto 1.2mtr including dressing of sides, lift upto 1.5mtr, including getting out the excavated soil, refilling with sand and or good soil after laying of cable / pipe etc in layers of 20 cm and disposal of surplus excavated soil as directed, within a lead of 50 metres (excluding ramming & watering).

Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of size upto 35 sq mm in the existing masonry open duct as required.

Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of size above 35 sq mm & upto 95 sq mm in the existing masonry open duct as required.

Supplying and making end termination with 25mm brass compression gland for 12-16 x 2.5 sq mm PVC insulated and PVC sheathed / XLPE copper conductor cable of 1.1 KV grade as required.

Providing and fixing G.I. pipes 50 mm. dia. nominal bore complete with G.I. fittings including trenching and refilling etc.

Providing and fixing G.I. pipes 80 mm. dia. nominal bore complete with G.I. fittings including trenching and refilling etc.

Supplying and erection of single piece nonlinear resistor type lightning arrestor suitable for 3 wire, 33 KV overhead lines with rated voltage 30 KV (rms) with a nominal discharge current rating of 10 KA (station class) and complete with galvanised clamping arrangement, G.I. bolts, nuts, washers etc. as required.

Supplying & fixing of G.I. plate of size 450mm x 450mm x 8mm on incoming gantry of 33KV switchyard including G.I. nuts, bolts, washers, drilling holes etc as reqd.

Supplying & erection of DMC / Epoxy electrical insulator for isolating 33KV lightning arrester & earthing strip including G.I. nuts, bolts, washers, drilling holes etc as reqd.

Installation of 33KV current transformer on low level support of switchyard with G.I. clamps, nuts, bolts, washers, drilling holes etc as reqd.

Making of masonry plinth of size (2000 x 2000 x 1500)mm including earth work, sand filling, PCC 1:4:8, PCC 1:2:4, brick work, plastering, white washing etc. as per the instruction of Engineer in charge as reqd.

Supplying & fixing of G.I. structural stand for 33KV O/D type VCB made of ISMC (150 x 75)mm (147.60kg), ISMC (75 x 40)mm (30.60kg) & ISA (50 x 6)mm (28.50kg) including G.I. nuts, bolts, washers, drilling holes etc as reqd.

Installation of 33KV Outdoor type VCB Unit & its Control Panel including modification of 33KV bus & connections as reqd.

Supplying & fixing of 14/16 SWG, IP-42, CRCA sheet steel, dust & vermin proof, (300mm x 300mm x 200mm) junction box complete with 12-way connector, nuts, bolts & washers as reqd.

Earthing with G.I. earth plate of size (600 x 600 x 6)mm. and G.I. pipe of size (80mm. dia. x 3.0 mtr. length) including salt, charcoal & other accessories to bring down the earth resistance to 01-Ohm or less, but excluding excavation & masonry work as reqd.

Making of masonry earthing chamber of size (600 x 600 x 650)mm including earth work, sand filling, PCC 1:4:8, brick work, Pre-cast RCC cover, Reinforcement, plastering, white washing etc. as per the drawing & instruction of Engineer I/C.

Supplying & laying 50 mm x 6 mm G.I. strip at 0.50 metre below ground as strip earth electrode including solder jointing / connection / terminating with G.I. nut, bolt, spring, washer etc. as reqd. (Jointing shall be done by overlapping and with 2 sets of G.I. nut, bolt & spring washer spaced at 50 mm.).

Supplying of 33KV, 1250Amp Horizontal Double Break GOAB Switch with flat isolating contacts & 4-bolt terminal copper connectors suitable for ACSR conductor confirming to IS specifications (ammended upto date).

Supplying & making of 2 x 3.5mtr. long 33KV Isolator mounting channel and 1 x 1.5mtr. long Handle fixing channel of 100mm x 50mm x 6mm G.I. Channel Iron (9.2kg/mtr) complete with bolts, nuts, drilling holes & painting with primer and finish paint as reqd.

Fixing & aligning of 33KV GOAB switch set & its platform on overhead structures including testing for its proper operation.

Supplying & fixing of (450 x 300 x 150)mm isolator operating / interlocking GI box with internal & external locking arrangement, manually operated rotor, lever & other accessories as reqd.

Providing different electrical SLDs of 33KV & 6.6KV apparatus in CAD with soft copy & their approval.

Providing & fixing High intensity micro-prismatic grade sheeting as per the instruction of Engineer I/C including printing, pasting & lamination as per IRC 67.

Total impact of GST plus Labour Cess [@ 1 % (BOCW Cess to be deducted from the RA bill as per the value of the work progress)] for the purpose of CTC