Erection of new feeder from 33/6.6 KV new substation to match with the mines feeder and other Day to Day shifting and extension work of 3.3 KV/6.6 KV HT over head lines for mines expansion for a period of one year at Baroud OCM,SECL, Raigarh Area

Item Description

Erection of metallic pole of following length in cement concrete 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 40 mm nominal size) foundation including excavation and refilling etc. as required. Above 10 mtr and upto 13 mtr

Erection of metallic pole of following length including excavation and refilling with stone/boulder etc. as required. Above 10 mtr and upto 13 mtr

Supplying and erection of galvanised stay set for 11 KV over head lines complete with 19/ 20 mm dia X 1.8 metres long stay rod, anchor plate of size 45 cm X 45 cm X 7.5 mm thick, thimble, stay clamps, turn buckle (20 mm X 600 mm), 7/ 4.00 mm dia G.I. stay wire and 11 KV strain insulator etc in cement concrete 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 40 mm nominal size) foundation including excavation and refilling etc. as required.

Supplying of channel iron 75 mm X 40 mm X 6 mm (7.14 kg per metre) pole top bracket/ cross arm for single 11 KV over head line conductor complete with 50 mmX 6mm flat iron clamp, bolts, nuts and washers including drilling holes for insulator pins, bolts and nuts etc and painting with primer and finish paint as required. (25 cm)

Supplying of channel iron 75 mm X 40 mm X 6 mm (7.14 kg per metre) Straight arm for two 11 KV over head line conductors complete with 50 mm X 6mm M.S. flat iron clamps, bolts and nuts including drilling holes for insulator pins, bolts, nuts and washers etc (as per drawing) and painting with primer and finish paint as required. (1.1 mtr)

Erection of pole top/ straight two wire/ V shape two wire, angle iron/ channel iron, cross arm on steel tubular/ rail/ PCC pole for 11/22/33 KV as required.

Supplying of two lengths of channel iron 75 mm X 40 mm X 6 mm (7.14 kg per metre) double pole cross arm for three wire 11KV over head line conductors complete with through bolts and nuts for clamping to the poles, 50 mm X 6 mm M.S. flats welded on one side to the channel iron and with bolts and nuts on the other side for tying the cross arms together, including drilling holes for insulator pins/ fittings, bolts, nuts and washers etc (as per drawing) and painting with primer and finish paint as required. (each channel 2.3 mtr)

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

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

Supplying and erection of 11 KV disc insulator for 11 KV over head lines with galvanised insulator fittings, ball and socket type and complete with galvanised strain clamps, bolts, nuts, washers etc. as required.

Erection of disc/ pin insulator for 11 KV over head lines as required.

Supplying and making outdoor cable end termination with heat shrinkable jointing kit complete with all accessories including lugs suitable for following size of 3 core, XLPE aluminium conductor cable of 11 KV grade as required . 70 sq mm

Supplying and making outdoor cable end termination with heat shrinkable jointing kit complete with all accessories including lugs suitable for following size of 3 core, XLPE aluminium conductor cable of 11 KV grade as required . 120 sq mm

Supplying and making indoor cable end termination with heat shrinkable jointing kit complete with all accessories including lugs suitable for following size of 3 core, XLPE aluminium conductor cable of 11 KV grade as required. 240 sq mm

Erection of RABBIT ACSR conductor including binding etc. as required. 850 m x 3 phase = 2550 m

Erection of DOG ACSR conductor including binding etc. as required. 3150 m x 3 phase = 9450 m

Erection of RABBIT all aluminium conductors including binding etc. as required. 2000 m x 3 phase + 9500 m = 6000 m

Erection of DOG all aluminium conductor including binding etc. as required. 3500 m x 3 phase = 10500 m

Transportation of new /old electric HT poles within mine boundary/ switchyard /workshop (Departmental vehicle will be provided by SECL)

Supply of Angle iron bracket (65 mm x 65 mm x 6 mm), 65 cm long (for running earth)

Supply of Angle iron bracket (65 mm x 65 mm x 6 mm) for cradle guard. 1.25 mtr x 2 side x 15 places = 37.5 mtr x 5.798 Kg/mtr + 5% wastage = 217.425 + 10.871 = 228.30 Kg

Supply of Clamps, bolts, nuts etc for fixing angle iron of running earth & cradle guard bracket

Erection of angle iron/ channel iron cross arm on wood/ RCC/ PCC/steel tubular/ rail pole etc. as required.

Supply of 6 SWG G.I wire for cradle guard. Cradle guard - 15 place x (4run x 50mtr + 42 cradle x 1.2 mtr) x 0.147 Kg/mtr = 552.13 Kg.

Erection of cradle guard as required. (42 nos x 15 places)

Supplying and erection of three piece nonlinear resistor type lightning arrestor suitable for 3 wire, 11 KV overhead lines with rated voltage 9 KV (rms) with a nominal discharge current rating of 5 KA and complete with galvanised clamping arrangement, G.I. bolts, nuts, washers etc. as required.

Providing and fixing H.T. danger notice plate of 250 mm X 200 mm, made of mild steel, at least 2 mm thick, and vitreous enamelled white on both sides, and with inscription in single red colour on front side as required.

Making chemical earthing by supplying, commissioning, erecting earthing rod of 50mm dia, 2.0 meter length copper plated carbon steel core electrode and with Earth enhancement compound (Bentonite) 25 kg including accessories, and providing masonry enclosure with cover plate having locking arrangement.

Supplying and laying 25 mm X 5 mm G.I strip at 0.50 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)

Providing and fixing 25 mm X 5 mm G.I. strip on surface or in recess for connections etc. as required.

Supplying and erection of a set of cross bracing FRLSame work for 11 KV over head line double pole structure having four members fabricated out of 50 mm X 50 mm X 6 mm angle iron to form a rectangle of minimum size 1400 mm width X 2500 mm height, complete with 50 mm X 6mm M.S. flat iron clamps, bolts and nuts including drilling holes for insulator pins, bolts and nuts etc (as per drawing) and painting with primer and finish paint as required.

Dismantling of over head lines comprising of copper/ aluminium over head conductor, G.I. wire, cross arms, insulators etc. as required.

Dismantling of pole/street light standard/strut embedded in cement concrete foundation etc. as required.

Supplying and fixing of 11 KV 600 Amp double break flat type GOAB switch/Isolator, type -horizontal, 3 post insulators per phase for three phase, heavy duty copper male & female contact complete set including GI Pipe operating down rod, with nuts bolt, drill holes, gas cutting & necessary locking arrangement of handle with connection of incoming outgoing cable/conductor as required.

Numbering of the pole by applying one coat red oxide zinc chromate primer, two or more coat of synthetic enamel yellow paint of approved brand for a length of 2 ft long covering whole circumference and then lettering the voltage level, feeder name and pole number with black japan paint of each letter 6 cm height.

Engagement of 4 semi skilled manpower for Trimming /cutting of tree branches including cutting accessory. (4 times a year, 2 days required to cover full length)

Fault detection and rectification by engagement of 2 nos skilled lineman for 180 days/year from Mar to August on 2nd and 3rd shift or as per requirement.

Total impact of GST for the purpose of CTC

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