Mahanadi Coalfields Limited Tender

Erection of pole top /Straight two wireV-shape two wire, angle iron /channel iron, cross arm on steel tubler/ Rail/PCC pole for 11/22/33KV as reqd.

Erection of AAA conductor of 7/3.40 mm to 7/4.00 mm diameter and above including binding etc as required.

Supplying and erection of 11KV disc insulator for 11 KV O/H line with galvanised insulator fittings, ball and socket type and complete with galvanised strain clamps, bolts, nuts, washers etc as reqd.

Supplying and erection of 11KV pin insulator complete with large steel head G.I.pin, nuts, washers as reqd.

Erection of G.I.wire no. 8 SWG incl. binding etc. as reqd.

Supply of G.I.Wire no.8 SWG

Supply of M.S.angle & Flat Size: 65 mm x 65 mm x 6 mm for ceadle guarding bracket

Supply of M.S.angle & Flat Size: bracket 50 mm x 6 mm for clamp

Supply of M.S.Bolt & nut size: 16 mmX50 mm

Labour charges for steel work welded in built up section trusses & framed work including cutting hoisting & fixing in position etc as reqd.

Erection of cardle guard

supplying of channel iron 75mm x 40mm x 6 mm (7.14 kg/mtr) V shpae cross arm for two 11 KV O/H line condiuctors complete with 50mm x 6mm M.S. flat, iron clamps, bolts, nuts & including drilling holes for insulator pin, bolts, nuts, washers etc. (as per drawing) & painting with primer & finish paint as required.

supplying of channel iron 75mm x 40mm x 6 mm (7.14 kg/mtr) V shpae cross arm for two 11 KV O/H line condiuctors complete with 50mm x 6mm M.S. flat, iron clamps, bolts, nuts & including drilling holes for insulator pin, bolts, nuts, washers etc. (as per drawing) & painting with primer & finish paint as required.

supplying of two lengths of channel iron 75mm x 40mm x 6 mm (7.14 kg/mtr) double pole cross arm for three wire 11 KV O/H line conductors complete with through bolt & nut for clamping to the poles,50mm x 6mm M.S Flats welded on one side to the chanel iron & with bolt & nuts on the other side for tying the cross arms together, including drilling holes for insulator pins/fittings, bolts, nuts , washers etc. (as per drawing) & painting with pimer & finish paint as required.

Erection of double pole three wire cross arm for 11KV/22KV/33KV OHL as required

Erection of metallic pole of above 8 mtrs & up to 10Mtr. length in cement concrete 1:3:6 (1 cement :3 course sand:6 grade stone aggregrate 40mm normal size) foundation including excavation and refilling etc as reqd.

Erection of metallic pole of above 10 Mtr & up to 12 Mtr. length in cement concrete 1:3:6 (1 cement :3 course sand:6 grade stone aggregrate 40mm normal size) foundation including excavation and refilling etc as reqd.

Supply & erection of 11 KV, 800 A, 25KA for 3 sec, 3 phase double break, center post rotating, off load, manual Isolator without Earth Switch, the swich shall be completed with 09 nos, 11KV grade ploymer post insulators ( Cantilever strength-6KN) (Mechanical strength-5K), Creepage distance-25mm/KV, vertical operating pipe, phase coupling pipe

Supply, installation and commissioning of maintenance free earthing system earth resistance upto 01 ohm with test certificate: Specification: Earthing electrode - 50/3 MTPCB, 3M X 58mm, THK:50, 250 Micron copper coating on GI pipe, Terminal size-40/6, inner strip- 25 x 3, filling material BFC silica base bentonite powder 50kg, Earth pit digging by spiral machine, Pit cover- Poly Plastic (BIG) primary earthing electrode (outer pipe) of 99.9% pure copper coating (250 micron) on GI pipe (diameter 58mm) X 3 mtrs. The hollow space of the electrode is duly filled with a highly conductive and non-corrosive compound (graphite power) which safeguards the secondary electrode getting corrode over a long period of time under the soil. Also the compound ensures the easy distribution of leakage/fault current lands on the electrode, Both the end s of the electrode are permanenetly sealed and the top portion of the earth electrode is compressed to form and extended lead with 2 holes on the terminal for connecting to the load/equipment.

Supply & erection of 4.5KV 10KA, SM-Station Medium Duty (Old line discharge class-III) with QRS=1.6C & Wth=7kj/KV as per IEC-60099-4 of 2014 & IS:15086 (Part-4) of 2017 gapless type single Phase Surge Arrestor comprising of Metal Oxide elements housed in FRP Wrap duty moulded with silicone Polymer to be used on a nominal system voltage of 3.3 KV & maximum system voltage of 6.6KV with an MCOV of 3.8Kvrms and with terminal clamps suitable for AAA conductor with creepage distance :31mm/KV, Pressure Relief class-25Ka @0.2sec, cantilever strength 150kgf ( As per CEA guidlines, TTRs validity is 10 Yrs)

Providing & fixing of G I chain link fabric fencing of required wih in mesh size 50X 50 mm including strengthening with 2mm dia wire or nuts, bolts and washers aas required complete as per the direction of Engineer I/C (Made G.I. wire of dia 4mm)

Supplying at site angle iron post & strut of required size including bottom to be split and bent at right angle in oposite direction for 10 cm length and drilling holes upto 10mm dia etc complete with angle of 65mm X 65m X 65mm @ 5.4 kg per/m =112.2 x5.4kg/mtr=605.88

Earth work in excavation by mechanical means( Hydraulic excavator) / manual means in foundation trenches or drams (not exceeding 1.5 m in width or 10 sqm on plan) including of sides and rammng of bottoms, lift upto 1.5 m including getting out the excavated soil and disposal of surplus excavated soil as directed within a lead of 50 m (All kinds of Soil)

Providing & laying in position cement concrete of specified grade excluding the cost of centering and shuttering- All work upto plinth level 1:3:6 (1 cement : 3 coarse sand: 6 graded stone aggregate 20 mm nominal size)

Extra for providing & fixing wind ties of 40 x 6mm flat iron section.

Applying primming coat with ready mixed red oxide zinc chromate primer of approved brand and manufacture on steel galvanished iron/steel works (over angle post and wind ties)

Painting with Alluminium paint of approved brand and manufacture to give and even shed 2 or more coats on new work (over angle post and wind ties)

Supplying and filling in plinth with sand under floors,includng watering,ramming,consolidating and dressing complete.

Cement concreate flooring 1:2:4(1 cement : 2 coarse sand :4 graded stone aggregate) finished with a floating coat of neat cement, including cement slurry, but excluding the cost of nosing of steps etc.complet 40 mm thick with 20 mm nominal size stone aggregate

Cement plaster 1:3 ( 1 cement 3 coarse sand ) finished with a floting coat of neat cement. 12 mm cement plaster,

Filling available excavated earth (excluding rock ) in trenches, plinth,sides of foundation etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, leadup to 50 m and lift upto 1.5 m

Brick work with Fly Ash Brick(230x115x75 mm size)bricks of class designation 10 in foundation and plinth in: Cement mortar1 : 6(1 cement :6 coarse sand)

Supplying and laying 25 mm x 5 mm G. I. Strip at .50 metre below ground as strip earth electrode, including connection /terminating with G. I. nut, bolt, spring,washer etc. as required. ( Jointing shall be done by overlapping and with 2 sets of G.I. nut bolt & spring washer spaced at 50mm)

Supply & stacking at site 53 mm to 22.4 mm stone aggregate, (Required 40 mm stone)

Laying and Spreding of stone aggregate 40mm size within a lead of 50 Mtr. As per instruction of EIC.

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