Provision Of01x250 Kva Transformer At Missamari - Excavation In Trenches Not Exc 1.5 Metre Wide And Not Exc 1.5 Metre Depth For Laying Of Ug Cable / Pole Etc Getting Out Including Forming Bottom Surfaceto Required Level And Gradient In Soft / Loose Soil, missamari-Assam

Provision Of01x250 Kva Transformer At Missamari - Excavation In Trenches Not Exc 1.5 Metre Wide And Not Exc 1.5 Metre Depth For Laying Of Ug Cable / Pole Etc Getting Out Including Forming Bottom Surfaceto Required Level And Gradient In Soft / Loose Soil Complete All As Specified And As Directed. 2 Returning And Filling In Excavated Soil Including Spreading Leveling, Watering, Well Ramming In Layers Not Exc 25 Cm Thick Complete All As Specified And As Directed. 3 Removing Of Excavated Materials Not Exceeding 50 Metre And Depositing Where Directed By Engrin Charge At A Level Not Exceeding 1.5 Metre Above The Starting Point Complete All As Specified And As Directed. 4 Supply And Laying Well Burnt Bricks , Locally Available Best Quality ( Sub Class B Bricks ) Laid In Trenches Perpandicular To U / G Cable For Cable Protection Complete All As Specified And As Directed. 5 M&L Clean Dry River Sandin Trenches / Ducts For Cushioning To Cable, 8 Cm In Depth Before Laying The Cable And 15 Cm In Depth After Laying The Cable Complete All As Specified And As Directed. 6 Supply, Install, Test And Commission Step Down Transformer, Outdoor Type, Plinth Mounted Ht 11 Kv, 3 Phase 433 Volts, 4 Wire, 50 Hz, Delta / Starconnected, Vector Group Dyn -11 Double Copper Wound, Onan, Manual Type Off Load Tap Changing Facility On Ht Side To Vary Secondary Voltage From Minus 7.5% To Plus 7.5% In Steps Of 2.5 %, Continuous Rating, Level-02 Of Capacity 250 Kva Incl Bushingon Ht End Cable Box On Lt Side. The Transformer Shall Be Complete With All Standard Fittings And Accessories, Gauges, First Fill Of Transformer Oil, Etc, And Conforming To Is 1180 Part-1:2014Duly Mounted On Plinth And All As Specified And As Directed. ( A ) Oil Conservator With Filling Hole, Cap And Drain Plug ( B ) Silica Gel Breather With Oil Seal And First Fills Of Dehydrating Agent ( C ) Adequate Nos Of Thermometer Pockets Incl One No For Accomodating Bulb Type Thermometer ( D ) Drain Cum Bottom Filter Valve ( E ) Top Filter Valve ( F ) Prisomatic Oil Level Gauge ( G ) Inspection Cover ( H ) Cover Fitting Lugs ( J ) Jacking And Fitting Lugs ( K ) Separate Neutral Bushing Brought Out For Earthing On Lv Side ( L ) Earthing Terminalnote: Pcc Platform / Plinth For Placing Transformer Is Not Included In The Quoted Rate And Will Be Measured And Paid Under Seperate Item. 7 Supply & Laying, Testing & Commissioning Of Lt Ug Cable Xlpe Sheathed Pvc Insulated, Screened Pvc Bedded, Galvanised Steel Strip Of Wire Armoured Electric Power Cable Heavy Duty With Stranded Aluminium Conductor 1100 Volts Grade, Laid In Trenches, In Gi Pipe , Including Brass Cable Glands, Clamps Etc Of Size3.5 Core X 400Sq Mm Complete All As Specified.Note : Earthwork, Sand Cushioning, Bricks, Gi Pipe, Etc Will Be Measured And Paid Under Appropriate Items 8 M&L For Earthing Complete With Gi Earth Electrode 600Mmx600mmx6mm Thick Buried Directly In Ground Vertically To A Depth Not Less 2.25 Mtr Below Ground Level With Top Edge Of Earth Plate A Depth Not Less Than 1.50 Mtr Below Normal Ground Level Connection To Gistrip32x6 Mm Drawn Through And Including Galvanised Iron Protection Pipe 40 Mm Bore ( Dia ) Light Grade Up To Height Of The Transformer Foundationwhere Foundation Situated By Means Of Bolt Nuts Check Nuts And Washers Etc Earth Platesurroumded By A Packed Thickness Of Charcoal Or Coke Dust Mixedwith Common Salt In Alternatelayers Of Not Exc 150 Mm Thick Pcc Pit In Cement Concreate 1:3:6 ( 20Mm Graded Aggreage ) Pre Cast Rcc 1:2:4 ( 20 Mm Graded Aggreagate Cover Slab 350X350x50mm Thick Reinforce With Including 8Mm Dia Tmt Bars@10 Cm Centre To Centre Both Ways Gi Wire Mess, Funnel With Gi Watering Pipe 20 Mm Bore Diamedium Grade Necessary Excavation In Soft Loose Soil Returning Fillingin And Revoal Of Surplus Soil Upto A Distance Of 50 Mtr And All As Shown In Electrical Plate No 3 Of Mes Schedule Part -I And Testingon Completion Complete All As Specified And As Directed. Note:- 02 Nos For Transformer Body And 02 Nos For Main Lt Panel. 9 M&L For Earthing Complete With Gi Earth Electrode 600Mmx600mmx6mm Thick Buried Directly In Ground Vertically To A Depth Not Less 2.25 Mtr Below Ground Level With Top Edge Of Earth Plate A Depth Not Less Than 1.50 Mtr Below Normal Ground Level Connection To Galvanised Iron As Earth Lead 4Mm Dia Drawn Through And Including Galvanised Iron Protection Pipe 15 Mm Bore ( Dia ) Light Grade Up To 1 .0 Mtr Above The Ground Level Of Ht Pole Foundation Where Pcc Polesituated By Means Of Bolt Nuts Check Nuts And Washers Etc Earth Platesurroumded By A Packed Thickness Of Charcoal Or Coke Dust Mixedwith Common Salt In Alternatelayers Of Not Exc 150 Mm Thick Pcc Pit In Cement Concreate 1:3:6 ( 20Mm Graded Aggreage ) Pre Cast Rcc 1:2:4 ( 20 Mm Graded Aggreagate Cover Slab 350X350x50mm Thick Reinforce With Including 8Mm Dia Tmt Bars@10 Cm Centre To Centre Both Ways Gi Wire Mess, Funnel With Gi Watering Pipe 20 Mm Bore Diamedium Grade Necessary Excavation In Soft Loose Soil Returning Fillingin And Revoal Of Surplus Soil Upto A Distance Of 50 Mtr And All As Shown In Electrical Plate No 3 Of Mes Schedule Part -I And Testingon Completion Complete All As Specified And As Directed. 10 M&L For Earthing Complete With Copperearth Electrode 600Mmx600mmx6mm Thick Buried Directly In Ground Vertically To A Depth Not Less 2.25 Mtr Below Ground Level With Top Edge Of Earth Plate A Depth Not Less Than 1.50 Mtr Below Normal Ground Level Connection To Copper Strip20x3 Mm Drawn Through And Including Galvanised Iron Protection Pipe 40 Mm Bore ( Dia ) Light Grade Up To Height Of The Transformer Foundationwhere Foundation Situated By Means Of Bolt Nuts Check Nuts And Washers Etc Earth Platesurroumded By A Packed Thickness Of Charcoal Or Coke Dust Mixedwith Common Salt In Alternatelayers Of Not Exc 150 Mm Thick Pcc Pit In Cement Concreate 1:3:6 ( 20Mm Graded Aggreage ) Pre Cast Rcc 1:2:4 ( 20 Mm Graded Aggreagate Cover Slab 350X350x50mm Thick Reinforce With Including 8Mm Dia Tmt Bars@10 Cm Centre To Centre Both Ways Gi Wire Mess, Funnel With Gi Watering Pipe 20 Mm Bore Diamedium Grade Necessary Excavation In Soft Loose Soil Returning Fillingin And Revoal Of Surplus Soil Upto A Distance Of 50 Mtr And All As Shown In Electrical Plate No 3 Of Mes Schedule Part -I And Testingon Completion Complete All As Specified And As Directed. 11 M&L Test Point Terminal Block Made Of Gun Metal Or Phosphorus Bronze Size 75X75x25mmdnilled And Screwed Including 3 Nos 8 Mm Dia 25Mm Long Hex Head Screw Complete All As Specified And Directed By Engr-In-Charge 12 Surface Dressing In Soft Loose Soil N Exc 15 Cm Deep And Getting Out Complete All As Specified And As Directed. 13 M&L For Cement Concrete 1:4:8 ( 40Mm Graded Aggregate ) As Lean Concrete In Foundation Of Poles, Stay Assembly, Etc., Including Formwork ( As / If Required ) , Complete All As Specified And As Directed. 14 M&L Forpcc ( 1:4:8 ) Type D-2 ( Using 40 Mm Aggregate ) As In Foundation For Pole Etc.Complete All As Specified And As Directed. 15 M&L Forpcc ( 1:2:4 ) Type B-1 ( Using 20 Mm Aggregate ) As In Coping Of Pole, Top Surface Of Transformer Foundation Etc Including Form Work & Finishing The Surfaces Even & Smooth With Out Using Extra Cement Complete All As Specified And As Directed. 16 M&L For Anti-Climbing Device Comprising 2.24Mm Dia Galvanised Steel 2 Strand Barbed Wire With 2.24 Mm Dia Barbs Wrapped Spirally Round Poles, To A Length Of 5 To 1.0 Mtr Clamed And Properly Secured Or As Ordered Clamps Measured Separately 17 M&L For Brick Work With Burnt Old Size Bricks Built In Cement Mortar 1:6 Straight Or Curved On Plan Exceeding 6Mtr Mean Radius And All As Directed. 18 M&L For Rendering 15 Mm Thick On Other Than Fair Faces Of Brick Or Concrete Surfaces In Cement Mortar 1:6 Finished Even And Smooth Complete All As Specified And As Directed. 19 M&L For Hardcore Of Gauge N Exc. 63 Mm, Deposited, Spread And Levelled In Layers N Exc. 15 Cm Thick, Watered And Rammed To A True Surface For Footpath Andstone Aggregate Around Perimeter Of Transformer Fondation Complete All As Specified And As Directed. 20 M&L For Cement Concrete 100 Mm Thick Type C-2, 1:3:6 ( 40Mm Graded Aggregate ) For Footpath Complete All As Specified And As Directed. 21 M&L For Cement Concrete 40 Mmthick Type C-2, 1:2:4 ( 40Mm Graded Aggregate ) For Footpath Complete All As Specified And As Directed. 22 M&L For Hardcore Of Gauge N Exc. 100 Mm, Deposited, Spread And Levelled In Layers N Exc. 15 Cm Thick, Watered And Rammed To A True Surface For Stone Aggregate Around Perimeter Of Transformer Foundation Complete All As Specified And As Directed. 23 M&L For Three Coat Ofwhite Wash Onwall Surface Including Preparation Of Surface Complete All As Specified And As Directed.

Sr No	CorrigendumDate	Corrignedum	CorrigendumType	NewSubmissionDate
1	21-Oct-2022	Bid Auto Extn Corrigendum	Bid Auto Extn Corrigendum	28-10-2022

INR 500 /-

INR 44600.0 /-

INR 22.30 Lakhs /-

Nature of Work: PROVN OF01X250 KVA TRANSFORMER AT MISSAMARI

Sl. No.	Item Description
1	Excavation in trenches not exc 1.5 metre wide and not exc 1.5 metre depth for laying of UG cable / pole etc getting out including forming bottom surfaceto required level and gradient in soft/loose soil complete all as specified and as directed.
2	Returning and filling in excavated soil including spreading leveling, watering, well ramming in layers not exc 25 Cm thick complete all as specified and as directed.
3	Removing of excavated materials not exceeding 50 metre and depositing where directed by Engrin Charge at a level not exceeding 1.5 metre above the starting point complete all as specified and as directed.
4	Supply and laying well burnt Bricks , locally available best quality (sub class "B" bricks) laid in trenches perpandicular to U/G cable for cable protection complete all as specified and as directed.
5	M&L Clean dry river sandin trenches/ducts for cushioning to cable, 8 cm in depth before laying the cable and 15 cm in depth after laying the cable complete all as specified and as directed.
6	Supply, install, test and commission step down transformer, outdoor type, plinth mounted HT 11 KV, 3 phase 433 volts, 4 wire, 50 Hz, delta/starconnected, vector group DYN -11 double copper wound, ONAN, manual type off load tap changing facility on HT side to vary secondary voltage from minus 7.5% to plus 7.5% in steps of 2.5 %, continuous rating, level-02 of capacity 250 KVA incl bushingon HT end cable box on LT side. The transformer shall be complete with all standard fittings and accessories,gauges, first fill of transformer oil, etc, and conforming to IS 1180 Part-1:2014duly mounted on plinth and all as specified and as directed. (a) Oil conservator with filling hole, cap and drain plug (b) Silica gel breather with oil seal and first fills of dehydrating agent (c) Adequate Nos of thermometer pockets incl one No for accomodating bulb type thermometer (d) Drain cum bottom filter valve (e) Top filter valve (f) Prisomatic oil level gauge (g) Inspection cover (h) Cover fitting lugs (j) Jacking and fitting lugs (k) Separate neutral bushing brought out for earthing on LV side (l) Earthing terminal Note: PCC platform / plinth for placing transformer is not included in the quoted rate and will be measured and paid under seperate item.
7	Supply & Laying, testing & commissioning of LT UG cable XLPE sheathed PVC insulated,screened PVC bedded, galvanised steel strip of wire armoured electric power cable heavy duty with stranded aluminium conductor 1100 volts grade, laid in trenches, in GI pipe , including brass cable glands, clamps etc of size3.5 core x 400sq mm complete all as specified. Note : Earthwork, sand cushioning, bricks, GI pipe, etc will be measured and paid under appropriate items
8	M&L for earthing complete with GI Earth Electrode 600mmX600MMx6MM thick buried directly in ground vertically to a depth not less 2.25 mtr below ground level with top edge of earth plate a depth not less than 1.50 mtr below Normal Ground level connection to GIstrip32x6 mm drawn through and including galvanised iron protection pipe 40 mm bore (dia)Light grade up to height of the transformer foundationwhere foundation situated by means of bolt Nuts check Nuts and washers etc earth platesurroumded by a packed thickness of charcoal or coke dust mixedwith common salt in alternatelayers of not exc 150 mm thick PCC pit in cement concreate 1:3:6 ( 20mm graded aggreage ) Pre cast RCC 1:2:4 (20 MM graded aggreagate Cover slab 350X350X50MM thick reinforce with including 8mm dia TMT Bars@10 CM centre to centre both ways GI Wire Mess,Funnel with GI watering pipe 20 MM bore diaMedium grade necessary excavation in soft loose soil returning fillingin and revoal of surplus soil upto a distance of 50 Mtr and all as shown in electrical plate No 3 of MES schedule Part -I and testingon completion complete all as specified and as directed. Note:- 02 Nos for Transformer Body and 02 Nos for main LT panel.
9	M&L for earthing complete with GI Earth Electrode 600mmX600MMx6MM thick buried directly in ground vertically to a depth not less 2.25 mtr below ground level with top edge of earth plate a depth not less than 1.50 mtr below Normal Ground level connection to galvanised iron as earth lead 4mm dia drawn through and including galvanised iron protection pipe 15 mm bore (dia)Light grade up to 1 .0 Mtr above the ground level of HT pole foundation where PCC polesituated by means of bolt Nuts check Nuts and washers etc earth platesurroumded by a packed thickness of charcoal or coke dust mixedwith common salt in alternatelayers of not exc 150 mm thick PCC pit in cement concreate 1:3:6 ( 20mm graded aggreage ) Pre cast RCC 1:2:4 (20 MM graded aggreagate Cover slab 350X350X50MM thick reinforce with including 8mm dia TMT Bars@10 CM centre to centre both ways GI Wire Mess,Funnel with GI watering pipe 20 MM bore diaMedium grade necessary excavation in soft loose soil returning fillingin and revoal of surplus soil upto a distance of 50 Mtr and all as shown in electrical plate No 3 of MES schedule Part -I and testingon completion complete all as specified and as directed.
10	M&L for earthing complete with copperEarth Electrode 600mmX600MMx6MM thick buried directly in ground vertically to a depth not less 2.25 mtr below ground level with top edge of earth plate a depth not less than 1.50 mtr below Normal Ground level connection to copper strip20x3 mm drawn through and including galvanised iron protection pipe 40 mm bore (dia)Light grade up to height of the transformer foundationwhere foundation situated by means of bolt Nuts check Nuts and washers etc earth platesurroumded by a packed thickness of charcoal or coke dust mixedwith common salt in alternatelayers of not exc 150 mm thick PCC pit in cement concreate 1:3:6 ( 20mm graded aggreage ) Pre cast RCC 1:2:4 (20 MM graded aggreagate Cover slab 350X350X50MM thick reinforce with including 8mm dia TMT Bars@10 CM centre to centre both ways GI Wire Mess,Funnel with GI watering pipe 20 MM bore diaMedium grade necessary excavation in soft loose soil returning fillingin and revoal of surplus soil upto a distance of 50 Mtr and all as shown in electrical plate No 3 of MES schedule Part -I and testingon completion complete all as specified and as directed.
11	M&L Test point terminal block made of gun metal or phosphorus bronze size 75X75X25mmdnilled and screwed including 3 Nos 8 mm dia 25mm long hex head screw complete all as specified and directed by Engr-in-charge
12	Surface dressing in soft loose soil n exc 15 cm deep and getting out complete all as specified and as directed.
13	M&L for Cement Concrete 1:4:8 (40mm graded aggregate) as Lean Concrete in Foundation of Poles, Stay Assembly, etc., including Formwork (as/if required), complete all as specified and as directed.
14	M&L forPCC (1:4:8) type D-2 (using 40 mm aggregate) as in foundation for pole etc.complete all as specified and as directed.
15	M&L forPCC (1:2:4) type B-1 (using 20 mm aggregate) as in coping of pole, top surface of transformer foundation etc including form work & finishing the surfaces even & smooth with out using extra cement complete all as specified and as directed.
16	M&L for anti-climbing device comprising 2.24mm dia galvanised steel 2 strand barbed wire with 2.24 mm dia barbs wrapped spirally round poles, to a length of 5 to 1.0 mtr clamed and properly secured or as ordered clamps measured separately
17	M&L for brick work with burnt old size bricks built in cement mortar 1:6 straight or curved on plan exceeding 6mtr mean radius and all as directed.
18	M&L for rendering 15 mm thick on other than fair faces of brick or concrete Surfaces in cement mortar 1:6 finished even and smooth complete all as specified and as directed.
19	M&L for Hardcore of gauge n exc. 63 mm, deposited, spread and levelled in layers n exc. 15 cm thick, watered and rammed to a true surface for footpath andstone aggregate around perimeter of transformer fondation complete all as specified and as directed.
20	M&L for Cement concrete 100 mm thick type C-2, 1:3:6 (40mm graded aggregate ) for footpath complete all as specified and as directed.
21	M&L for Cement concrete 40 mmthick type C-2, 1:2:4 (40mm graded aggregate ) for footpath complete all as specified and as directed.
22	M&L for Hardcore of gauge n exc. 100 mm, deposited, spread and levelled in layers n exc. 15 cm thick, watered and rammed to a true surface for stone aggregate around perimeter of transformer foundation complete all as specified and as directed.
23	M&L for three coat ofwhite wash onwall surface including preparation of surface complete all as specified and as directed.