TN-54/2025-26

Part-A

Grass cutting and surface dressing including removal of unwanted/rubbish plants with roots from open ground /yard and other Nigam premises with stacking of grass/plants at desired place near the ground.

Levelling of ground

Levelling of ground up to 30 cm.depth. with tractor and T&P required as per condition of ground including removal of rubbish plants from ground & marking of boundary with lime powder.(Including all lead & lifting)

Levelling of ground above 30 cm.to 90 CM.depth. with tractor and T&P required as per condition of ground including removal of rubbish plants from ground & marking of boundary with lime powder.(Including all lead & lifting)

Excavation of pit in ordinary rock which does not require blasting to erect various supports and stay sets including stacking of excavated muck from the edge of excavation/pit.

(A) Height of poles/R.S.Joist/M.S. Rail /Size of pit

9 Mtr/ 1.2mx0.6mx1.50 m deep

Excavation of pit in Hard rock (Whare blasting/drilling is required) to varions supports and stay sets including stacking of excavated muck from the edge of excavation/pit.

(A) Height of poles/R.S.Joist/M.S. Rail /Size of pit

8 Mtr/R.S.Joist/M.S. Rail 1.2mx0.6mx1.35 m deep

9 Mtr/ 1.2mx0.6mx1.50 m deep

Earth work excavation and foundation of platfrom of transformers and brakers including dressing of sides and ramming of bottoms .Liftup to 1.5 Meter including taking out the excavated soil and depositing and refilling of jhiri, watering and ramming and disposal of surplus excavated soil as directed with in a lead of 50 Meter.

Hard soil mixed with boulders

Providing and laying cement concrete including compaction etc, complete using stone aggregate 40 mm nominal size (hand broken ) in foundation plinth excluding the cost of shuttering using 1 cement:5 sand:10 aggregate mix.

Plaster on new surface on walls in cement ,sand mortar 1:6 including racking of joint etc. complete fine finsh 25 mm thick.

Cement concrete flooring grade 1:2:4 (1-cement :2- coarse sand :4-graded stone aggregate ) rounding off edges etc.but excluding cost of nosing of steps etc. complete.

25 mm thick with 12.5 mm thick nominal size aggregate.

75 mm thick with 20 mm thick nominal size aggregate.

Masonry for foundation and plinth

Randon Rubble stone masonry for foundation and plinth in cement sand mortar 1:6(1 Cement : 6 Sand) including labour charges.

Safe carriage of PCC poles including loading / un-loading

a) 9/10/11 Mtr. Long PCC pole

Within 10 Kms.

Above 10 Kms. & upto 30 Kms. Add for each Km.or part thereof.

C) 9 Mtr. Long-400 Kg PCC pole

within 10 Kms.-

Safe, carriage of steel (fabricated and unfabricated) i.e. M. S. Rails, R. S. Joists, M. S. Channels, M. S. Angles, M. S. Flat, G. I. Stay Sets, G. I. Stay Wire, G. I. Wire, Nut and Bolts etc., and ACSR Conductor including Loading and unloading and stacking in Nigam Store / at work site

Within 10 Kms.

Above 10 Kms. & upto 30 Kms. Add for each Km. or part thereof.*4.61*20=92.2

Above 30 Kms. Add for each Kms. or partthereof. 2.86*70=200.20

Insulator, hardware, cable, breakers, kiosks, pannels etc., including loading / unloading and stacking in Nigam Stores etc.

Within 10 Kms.

Above 10 Kms. & upto 30 Kms. Add for each Km. or part thereof.*5.57*20=111.4

Above 30 Kms. Add for each Kms. or part thereof.

Within 10 Kms.

Above 10 Kms. & upto 30 Kms Add for each Km.or part thereof.

Above 30 Kms. Add for each Kms. or part thereof.

Safe Carriage of 33/11 KV Power Transformer

Within 10 Kms

Above 10 Kms & upto 30 Kms . Add for each Km or part thereof

Above 30 Kms & upto 50 Kms . Add for each Km or part thereof

Above 50 Kms . Add for each Km or part thereof 16.27*30=488.10

Safe carriage of breakers/kiosks etc. including loading/ unloading and stacking in Nigam stores

Within 10 KMs.

Above 10 Kms. and upto 30 Kms.Add per each km,or part thereof

Above 30 Kms. and upto 50 Kms.Add per each km,or part thereof

Above 50 Kms. Add for each km,or part thereof (30x6.91)

Safe loading of power/ distribution transformer.

(A) 33/11 KV power transformer.

Above 5 MVA

Safe unloading of steel fabricated/ unfabricated conductor drum & other line material.

a) 33/11 KV power transformer.

Above 3.15 MVA

Erection &assembly of 2 Pole structures of steel supports or PCC poles in excavated pit in alignment after checking the same with plumb line.Including fixing of top bracing of M.S.Channels with pilot plates and clamps.The support is to be back filled with soil with proper ramming.The nuts &bolts are to be provided by the contractor as per Nigams specfication for which the payment will be made at the prevailing Discom store issue rates.

PCC Poles 9 Mtr. Long(200 Kg.)

Providing and laying of cement concrete in ratio 1:3:6 using 43 grade cement ,river snad and 12 mm to 20 mm graded blast crusher broken in pit /foundation according to the size/type of supports /stay set including compaction/curing for 21 days in steel plates shuttering /farmer base

supplying and laying of randum rubble stone boulder having weight not less than 20 kgs.

Fixing of all type of fabricated material on erected supports with nut & bolts as per approved design & drawing of sub-station.

Fixing of 11kv B&S/T&C type disc insulator for 33kv lines (each unit consiting of 3 nos .disc.& 1set of H/W) on terminal point including fixing of hardware andstrips.

Fixing of 33kv pin insulator with pins.

Fixing of 11 KV pin insulator with pins.

33kv G.O.switch

11kv G.O.switch

Assembly and installation of Horn Gap fuse set (set of 3nos)on erected structure as per design, complete in all respectwith post insulator including jumpering on both ends for connection with the system. The nuts & bolts will be supplied by the contractor for which payment will be made as per prevailing Discom store issue rates.

33kv Horn Gap fuse set.

11kv Horn Gap fuse set.

Installation of lightening arrestors on erected structure /support (set of 3 nos) including connection with earth by wire /strip as required and jumpering etc. The nuts & boltswill be supplied by the contractor for which payment will be made as per prevailing Discom store issue rates,

(A)sub-station type

33 KV L.A. set

11 KV L.A. set

Installation testing as per Nigams norm & commissioning of 11/0.4KV distribution transformer on erected supports including fixing of base channels as per requirment jumpering on HV&LV side, crimping of lugs/ clamping earth connections of body and neutral of transformer with wire /strip (as already provided with earthing ) complete in all respect. The PG clamps nuts & bolts will be supplied by the contractor for which payment will be made as per prevailing Discom store issue rates,

25 and 40 KVA

Fixing of danger plates on supports/structure

Fixing of PG clamp of Weasel /Rabbit Conductor

Fixing of PG clamp of Dog /Racoon Conductor

Earthing of 11/0.4 KV distribution transformer /sub-station with 3 pieces of M.S.Rod 20mm dia each 3 meter long and driving them into earth by mechanical means at a distance as per approved design & drawing & specification.The work includes flattening of top ends of M.S.rod drilling a hole of 9/16" dia.at flattened top and tightening of M.S.flat 50x6mm (having 3 hole 2ends and 1mm middle) with nuts and bolts with M.S.rods top end hole.The flat will also be welded with M.S.rod.The end will be connected to equipments as under in sequence.

Mesh earthing for 33/11 kv sub-station as per approved map &design usingMS flat 50X6mm/MS road 20mm dia includinglaying of flat/rod at the depth of 0.65 Mtrs.,welding & jointing at joints , structures & equipments etc.asunder:

Excavation of trench of 0.65Mtrs.depth and 0.5Mtr.width

Ordinary rock ( where blasting is not required.)

Laying of MS flat /MS rod in 0.65Mtr.deep excavated trench and welding of MS flat/rod continuosly with 100 mm overlaping for straight joint including coating of MS flat joints with molten bitumen and covering joint with bitumen impregnated tape to protect from rust.

Shaping of MS flat for connecting the equipments with earthmesh .The work includes the welding of MS flat with equipments/structure and also with earth mesh.The work also includes coating of MS flat joint with molten bitumen and covering jointwith bitumen impregnated tape to protect from rust.

Where drilling is required

Filling of trench with available excavated muck in layers of 20cm (Max.)consolidating each deposited layer by ramming & watering with lead up to 50 Mtr, and lift up to 1.5 Mtr.

Earthing of new 33/11 KV S/S with bentonite compound (including material ) involving following activities.

Laying of 1100 volt heavy duty armoured XLPE cable of aluminum coudctor of following size conforming to IS: 7098 (Pt-I) (latest amended) overhead service line from pole to meter terminals for release of new LT connections/replacement of damaged/obsolete service line (except agriculture one). The cable must be fixed on wall with clamps /hooks properly at a interval of one meter.

2 Core 2.5/ 4/ 6 sq. Mm

Erection of steel supports in the excavated pit in alignment after checking then same with plumb line as per approved design and drawing of 33/11KV Sub- station.The support should be grouted and muffed in cement concrete ratio 1:3:6 as per chapter -5 code No.5.7.The remaining portion of the pit will be back filled with soil.The charges for grouting & muffing will be paid by extra as per chapter code no 5.7 The nuts & bolts will be supplied by the contractor for which payment will be made as per prevailing Store issue rates.

Fabricated structure AB type

Fabricated structure AB-1 type

Isolator / C.T.structure

Erection of PCC poles in excavated pit in alignment after checking the same with plumb line as per approved design & drawing of 33/11kv sub-station.The pit should be back filled with the soil with proper ramming below 30cm ground level and then muffed above 15cm average ground level with cement concrete ratio1:3:6.The charges for muffing will be paid extra as per chapter code no 5.7 The nuts & bolts will be supplied by the contractor for which payment will be made at the prevailing store issue rates.

(A) IN RURAL AREA

PCC Poles 9 Mtr. Long

Laying / stringing of bus bar with ACSR Dog & jumper connection using tie rod ,33KV /11KV insulator strings,required hardware,P.G.clamps/T clamps etc.as per requirement including Y-connections at bus bar jumpering point as per the direction of engineer in-charge.

ACSR DOG/RABBIT

Supply, stacking & spreading of stone boulders 40 mm. Mono size.(Less voids 17%)

Erection of OCB/Kiosk/VCB complete with accessories including use of special tools & conducting all pre-commissioning test before energization,filling oil etc. complete in all respect with erection & grouting of structure (excluding civil works). The relays will be tested by Discom.

33 KV VCB/SF-6 Breaker

11 KV VCB (Outdoor )

Laying, testing termination of control cable 1100 volts PVC insulated including supply and installation of ferrules to designate various cores of control cables by terminal Nos. of identification including utilization of cable gland. The control cable should be clearly arranged in trenches avoiding crossings including clamping of control cable at regular interval and providing identify tags.

12x2.5 Sq.mm.

Installation of metering points on 11 KV Out going feeder at 33/11 KV S/S.

Hiring of Crane with Driver & P.O.L.(Per Hour)

Supply of M.S. Nuts & Bolts all size

PART-B

Conducting route survey as per approved route map and pegging of route with tee off point section point & double pole locations.

Trimming of tree branches/plants and preparing route approchases for proposed line.

Excavation of pit in ordinary rock which does not require blasting to erect various supports and stay sets including stacking of excavated muck from the edge of excavation/pit.

(A) Height of poles/R.S.Joist/M.S. Rail /Size of pit

9 Mtr/ 1.2mx0.6mx1.50 m deep

(B) Lattice Tower /Size of pit

12.8/12.6 Mtr/ 1.5mx1.5m x2.10 m deep

(C)Stay set/Depth of pit

Excavation of pit in Hard rock (Whare blasting/drilling is required) to varions supports and stay sets including stacking of excavated muck from the edge of excavation/pit.

(A) Height of poles/R.S.Joist/M.S. Rail /Size of pit

9 Mtr/ 1.2mx0.6mx1.50 m deep

(B) Lattice Tower /Size of pit

12.8/12.6 Mtr/ 1.5mx1.5m x2.1 m deep

(C)Stay set/Depth of pit

Safe carriage of PCC poles including loading / un-loading

a) 9/10/11 Mtr. Long PCC pole

Within 10 Kms.

Above 10 Kms. & upto 30 Kms. Add for each Km.or part thereof.

Safe, carriage of steel (fabricated and unfabricated) i.e. M. S. Rails, R. S. Joists, M. S. Channels, M. S. Angles, M. S. Flat, G. I. Stay Sets, G. I. Stay Wire, G. I. Wire, Nut and Bolts etc., and ACSR Conductor including Loading and unloading and stacking in Nigam Store / at work site

Within 10 Kms.

Above 10 Kms. & upto 30 Kms. Add for each Km. or part thereof.*4.61*20=92.2

Insulator, hardware, cable, breakers, kiosks, pannels etc., including loading / unloading and stacking in Nigam Stores etc.

Within 10 Kms.

Above 10 Kms. & upto 30 Kms. Add for each Km. or part thereof.*5.57*20=111.4

Safe carriage of fabricated latice tower structure and sub-station structure type AB,AB beams,isolator structure etc. including loading /unloading and stacking in the Nigam,Stores/at work site

Within 10 Kms.

Above 10 Kms & upto 30 Kms add for each Km or part therof*5.11*20=102.20KM

Above 30 Kms. Add for each Kms or part thereof.

Erection of all type of steel supports in the excavated pit in alignment after checking the same with plumb line including fixing of cross arms and top hamper before erecting the supports. The support should be grouted and muffed in cement concrete of ratio 1:3:6 as per item No. 5.7 the remaining portion of the pit will be back filled with soil. The nuts & bolts will be provided by the contractor as per Nigam's specification for which payment will be made at the prevailing store issue rates. The cost muffing and grouting will be paid extra.

Lattice structure

Erection of PCC poles in excavated pit with fixing of brackets,cross arms & top hampers as required in alignment after checking the same with plumb line. The support is to be back filled with soil with proper ramming. The nuts & bolts are to be provided by the contractor as per Nigam's specification for which the payment will be made at the prevailing Discom store issue rates.

(B) IN RURAL AREA

PCC Poles 9 Mtr. Long (400 Kg)/200 Kg

Erection &assembly of 2 Pole structures of steel supports or PCC poles in excavated pit in alignment after checking the same with plumb line.Including fixing of top bracing of M.S.Channels with pilot plates and clamps.The support is to be back filled with soil with proper ramming.The nuts &bolts are to be provided by the contractor as per Nigams specfication for which the payment will be made at the prevailing Discom store issue rates.

PCC Poles 9 Mtr. Long(400 Kg.)/11Mtr.long

Erection & fixing of G.I.Stay sets with anchor plates in excavated pit in required position and back filling with soil with proper ramming.The work includes fixing of stay clamps.Stay insulator with stay wire at both ends with proper tension.Size of stay set/stay wire

8"x3/4" with 7/8 SWG stay wire

Providing and laying of cement concrete in ratio 1:3:6 using 43 grade cement ,river snad and 12 mm to 20 mm graded blast crusher broken in pit /foundation according to the size/type of supports /stay set including compaction/curing for 21 days in steel plates shuttering /farmer base

supplying and laying of randum rubble stone boulder having weight not less than 20 kgs.

Fixing of all type of fabricated material on erected supports with nut & bolts as per approved design & drawing of sub-station.

Fixing and assembly of disc.point channel pair with pilot plates top hampers & clamps on erected single pole structure as per design. The nuts &bolts are to be provided by the contractor as per Nigams specification for which payment will be made as per prevailing Discom store issue rates,

33 KV line

Fixing of 11kv B&S/T&C type disc insulator for 33kv lines (each unit consiting of 3 nos .disc.& 1set of H/W) on terminal point including fixing of hardware andstrips.

Fixing of 33kv pin insulator with pins.

Assembly. Installation & commissioning of gang operated isolating switch on erected structure with setting for accurate operation including fixing of allied accessories completein all respect with post insulator and jumpering on both ends for connection with the system. The nuts and bolts will be supplied by the contractor for which payment will be made as per prevailing Discom store issue rates.

(B)G.O. switch . without earthing blade.

33kv G.O.switch

Fixing of PG clamp of Dog /Racoon Conductor

Laying ,jointing , stringing, tensioning and clamping of conductor with proper sag as directed , using bolted type hardware including binding on pin insulators,jumpering on section points with binding wire / P.G.clamps.Aluminium jointing sleeves will be used for jointing the conductor.The line must stand at proper voltage on charging.The contractor will be provide P.G.clamps for which payment will be made as per prevailing Discom issue rate.

(B) IN RURAL AREA

ACSR DOG

Laying , jointing,stringing,tensioning and clamping of G.I.Earthwire continuosly on single/double pole by using earth clamps /nuts & bolts with washers and earth reel etc.including proper binding at each end.The nuts and bolts will be supplied by the contractor for which payment will be made as per prevailing Discom store issue rates.

(B) IN RURAL AREA

G.I.Earth wire 6 SWG

Earthing of line for all type of supports as per REC construction standards using Stay wire/GI wire with one pcs.of M.S.rod20mm dia each 3 meter long and driving into earth by mechanical means as per approved design.Drawing &specification.All material except MS rod,MS flat & stay wirewill be supplied by the contractor.If material is supplied by the contractor ,the payment will be made as per prevailing Discomstore issue rates.(In case of PCC poles earthing must be connected with earthwire already available on PCC pole at bottom)

Painting with priming coats or ready mixed red-oxide paint 2 coats of approved make on steel works after cleaning with wire brush / sand paper.(including cost of red oxide)

On new surface

Painting with aluminium paint of approved brand and manufacturer to give an even surface.(including cost aluminium paint)

On new works with two coats.

Fabrication of steel structures of M.S angle ,M.S.channel & M.S.Flat including cutting ,drilling and continunous welding joint as per design and drawing.

33 KV D/C Lattice Structures (42' height)(508.06 Kg)

Supply of M.S. Nuts & Bolts all size

PART-C

Conducting route survey as per approved route map and pegging of route with tee off point section point & double pole locations.

Trimming of tree branches/plants and preparing route approchases for proposed line.

Excavation of pit in ordinary rock which does not require blasting to erect various supports and stay sets including stacking of excavated muck from the edge of excavation/pit.

(A) Height of poles/R.S.Joist/M.S. Rail /Size of pit

9 Mtr/ 1.2mx0.6mx1.50 m deep

(B) Lattice Tower /Size of pit

11.4/10.8 Mtr/ 1.5mx1.5m x1.80 m deep

(C)Stay set/Depth of pit

Excavation of pit in Hard rock (Whare blasting/drilling is required) to varions supports and stay sets including stacking of excavated muck from the edge of excavation/pit.

(A) Height of poles/R.S.Joist/M.S. Rail /Size of pit

9 Mtr/ 1.2mx0.6mx1.50 m deep

(B) Lattice Tower /Size of pit

11.4/10.8 Mtr/ 1.5mx1.5m x1.80 m deep

(C)Stay set/Depth of pit

Safe carriage of PCC poles including loading / un-loading

C) 9 Mtr. Long-400 Kg PCC pole

within 10 Kms.-

Above 10 Km. & upto 30 Km. add for each Km. or part thereof (4.75*20)=95

Safe, carriage of steel (fabricated and unfabricated) i.e. M. S. Rails, R. S. Joists, M. S. Channels, M. S. Angles, M. S. Flat, G. I. Stay Sets, G. I. Stay Wire, G. I. Wire, Nut and Bolts etc., and ACSR Conductor including Loading and unloading and stacking in Nigam Store / at work site

Within 10 Kms.

Above 10 Kms. & upto 30 Kms. Add for each Km. or part thereof.*4.61*20=92.2

Insulator, hardware, cable, breakers, kiosks, pannels etc., including loading / unloading and stacking in Nigam Stores etc.

Within 10 Kms.

Above 10 Kms. & upto 30 Kms. Add for each Km. or part thereof.*5.57*20=111.4

Safe carriage of fabricated latice tower structure and sub-station structure type AB,AB beams,isolator structure etc. including loading /unloading and stacking in the Nigam,Stores/at work site

Within 10 Kms.

Above 10 Kms & upto 30 Kms add for each Km or part therof*5.11*20=102.20KM

Above 30 Kms. Add for each Kms or part thereof. 3.52*50=176

Erection of all type of steel supports in the excavated pit in alignment after checking the same with plumb line including fixing of cross arms and top hamper before erecting the supports. The support should be grouted and muffed in cement concrete of ratio 1:3:6 as per item No. 5.7 the remaining portion of the pit will be back filled with soil. The nuts & bolts will be provided by the contractor as per Nigam's specification for which payment will be made at the prevailing store issue rates. The cost muffing and grouting will be paid extra.

Lattice structure

Erection of PCC poles in excavated pit with fixing of brackets,cross arms & top hampers as required in alignment after checking the same with plumb line. The support is to be back filled with soil with proper ramming. The nuts & bolts are to be provided by the contractor as per Nigam's specification for which the payment will be made at the prevailing Discom store issue rates.

(B) IN RURAL AREA

PCC Poles 9 Mtr. Long(200Kg.)

Erection &assembly of 2 Pole structures of steel supports or PCC poles in excavated pit in alignment after checking the same with plumb line.Including fixing of top bracing of M.S.Channels with pilot plates and clamps.The support is to be back filled with soil with proper ramming.The nuts &bolts are to be provided by the contractor as per Nigams specfication for which the payment will be made at the prevailing Discom store issue rates.

PCC Poles 9 Mtr. Long(200 Kg.)

Erection & fixing of G.I.Stay sets with anchor plates in excavated pit in required position and back filling with soil with proper ramming.The work includes fixing of stay clamps.Stay insulator with stay wire at both ends with proper tension.Size of stay set/stay wire

6"x5/8" with 7/10 SWG stay wire

Providing and laying of cement concrete in ratio 1:3:6 using 43 grade cement ,river snad and 12 mm to 20 mm graded blast crusher broken in pit /foundation according to the size/type of supports /stay set including compaction/curing for 21 days in steel plates shuttering /farmer base

supplying and laying of randum rubble stone boulder having weight not less than 20 kgs.

Fixing of all type of fabricated material on erected supports with nut & bolts as per approved design & drawing of sub-station.

Fixing and assembly of disc.point channel pair with pilot plates top hampers & clamps on erected single pole structure as per design. The nuts &bolts are to be provided by the contractor as per Nigams specification for which payment will be made as per prevailing Discom store issue rates,

11 KV line

Fixing of 11kv B&S/T&C type disc insulator of 11kv lines (each unit consiting of 1nos.disc.& 1set of H/ W ) on terminal point including fixing of hardware and strips.

Fixing of 11 KV pin insulator with pins.

Assembly. Installation & commissioning of gang operated isolating switch on erected structure with setting for accurate operation including fixing of allied accessories completein all respect with post insulator and jumpering on both ends for connection with the system. The nuts and bolts will be supplied by the contractor for which payment will be made as per prevailing Discom store issue rates.

(A)G.O. switch . with earthing blade.

11kv G.O.switch

Fixing of PG clamp of Dog /Racoon Conductor

Laying ,jointing , stringing, tensioning and clamping of conductor with proper sag as directed , using bolted type hardware including binding on pin insulators,jumpering on section points with binding wire / P.G.clamps.Aluminium jointing sleeves will be used for jointing the conductor.The line must stand at proper voltage on charging.The contractor will be provide P.G.clamps for which payment will be made as per prevailing Discom issue rate.

(B) IN RURAL AREA

ACSR RABBIT

Earthing of line for all type of supports as per REC construction standards using Stay wire/GI wire with one pcs.of M.S.rod20mm dia each 3 meter long and driving into earth by mechanical means as per approved design.Drawing &specification.All material except MS rod,MS flat & stay wirewill be supplied by the contractor.If material is supplied by the contractor ,the payment will be made as per prevailing Discomstore issue rates.(In case of PCC poles earthing must be connected with earthwire already available on PCC pole at bottom)

Painting with priming coats or ready mixed red-oxide paint 2 coats of approved make on steel works after cleaning with wire brush / sand paper.(including cost of red oxide)

On new surface

Painting with aluminium paint of approved brand and manufacturer to give an even surface.(including cost aluminium paint)

On new works with two coats.

Fabrication of steel structures of M.S angle ,M.S.channel & M.S.Flat including cutting ,drilling and continunous welding joint as per design and drawing.

33 KV D/C Lattice Structures (42' height)(508.06 Kg)

Supply of M.S. Nuts & Bolts all size

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