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| 1 | Earth work in excavation by mechanical means (Hydraulic excavator)/manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead upto 50 m and lift upto 1.5 m, as directed by Engineer-in-charge. |
| 2 | (a) All kinds of soil. |
| 3 | Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift upto 1.5 m. |
| 4 | Extra for every additional lift of 1.5 m or part thereof in excavation / banking excavated or stacked materials. |
| 5 | (a) All kinds of soil |
| 6 | Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level. |
| 7 | (a) 1:3:6 (1 cement : 3 coarse sand (zone-III) derived from natural sources : 6 graded stone aggregate 20 mm nominal size derived from natural sources) |
| 8 | Providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level. |
| 9 | (a) 1:1.5:3 (1 cement : 1.5 coarse sand : 3 graded stone aggregate 20 mm nominal size). |
| 10 | Centering and shuttering including strutting, propping etc. and removal of form for. |
| 11 | (a) Foundations, footings, bases of columns, etc. for mass concrete. |
| 12 | (b) Lintels, beams, plinth beams, girders, bressumers and cantilevers. |
| 13 | (c) Columns, Pillars, Piers, Abutments, Posts and Struts. |
| 14 | Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete aboveplinth level. |
| 15 | (a) Thermo-Mechanically Treated bars of grade Fe-500D or more. |
| 16 | Addfor Smooth finishing of the exposed surface of R.C.C. work with 6 mm thick cement mortar 1:3 (1 Cement : 3 fine sand). |
| 17 | Supplying at site 32mm diameter mild steel (bright finished) bars anchor bolts of grade-A confirming to IS:2062 and IS:808 for tower foundation as per the design of tower foundation drawing of telecom factory Jabalpur. Bolts should be 1000 mm length welded withM.S. Plate of 75mm x 75mm x 10mm thickness at bottom pierced through with full welding between rod/plate and top 200mm full threaded including supplying of required size and approved brand and manufacture, galvanised iron (GI) nuts, GI check nuts, GI washers and spring washer etc. All complete as per direction of Engineer-in-charge (The rate is inclusive of all operation mentioned in item). |
| 18 | Fixing tower anchor bolts & plate(s)inthefoundation of tower monolithic with RCC casting asdescribed below: |
| 19 | Fixinganchorboltswithlocked nuts anchor plates, placinginpositionthebolts and platesextremely accurate (correct upto milli-meters) levelling and placing at correct angles as per direction of Engineer-in-charge complete excluding cost of anchor bolts / templates , lock nuts & washers which will be supplied by the department or paid separately but including providing T & P etc. Note: Thetowermay be a three legged or four legged and accordingly there may be three or four numbers of plates/bolts assembly.Also, each assembly may have bolts in any multiple number.Therateincludes for fixing of anchor bolts and plate forall legs of tower including maintaining plate correctly. |
| 20 | Transportation of tower material including ladder, working platform, cable tray and antenna fixtures, templates and foundation/anchor bolts, nuts of any dia & length and connecting plates etc. all from departmental store /TE or some other city/ place to the siteofworkunderconsideration including all types of safety precautions during transportion.The item includes sorting (if required), loading, unloading and stacking of the material all complete and as per the directions of Engineer-in-charge. |
| 21 | 40 m tower weighingapproximately 10.25MT. and distance up to 10 kms |
| 22 | Supplying at site the tower members for new tower or deficient tower members for tower on account of any shortage/ unserviceable material found on dismantling of tower or otherwise. The material required for tower (excluding nuts, bolts & washers) anditsladder,working platform, wave guide rack(vertical), antenna fixtures, pipe stand for lightening arrestor, templates, base platesetc.as required shall be providedinrequiredsectionalsizeand lengthincluding drilling holes for bolts etc. all exactly as per and in conformity with the approved drawings of S.E.R.C.and as per the directions of Engineer-in-charge. NOTES:1.All tower material to be hot dip galvanised. The tower material, fabrication & galvanizing shall be as per the relevant IS code as well as SERC recommendations.2.This itemDOESNOT INCLUDEfor supplyof nuts, bolts & washersas well aserection, priming& painting of the tower which shall be measured and paid under the separate item. 3.Measurement:Weight of the all the material supplied (weight of each piece in exact length as required as per drawing).4.The rate includes all material, their carriage, etc. as well as labour and T & P necessary for straightening, cutting, filing,drilling etc., andhotdipped galvanisingto all steel members. |
| 23 | Supplying at siteHTgalvanisedsteelNuts, Bolts & washers for tower in required sizeand design conforming to the structural drawingof the tower.The rate includes necessary threading etc and payment shall be made for the actual weight of the material supplied at site. |
| 24 | Erection of 40 m Ground Basedselfsupporting tower usingNEW towermaterial (directly supplied from the factory or recovered materials from existing dismantling of tower or otherwise). Thework shall include the following :( A)Erection of tower includingsorting, assembling, lifting, fittingand fixing up all tower members in position true to the alignment includingassembling /hoisting /fixingof ladder, workingplatform,waveguide rack, lightening arrestor pipe stand etc. at required levelallcomplete asperthe manufacturers drawing and as per the directions ofEngineer- in-charge. The item includes enlarging holes, making holes in tower member if required, straighteningof twisted or bend tower members of any type etc. andall other connected works forthe aboveoperation(if and as required) all complete as per the directions of Engineer- in-charge.(This operation is only for labour chargesfor erection of tower)(B) Providing and painting of tower including all accessories etc. complete with superior quality, weather resistant high glow syntheticenamel paint ( two or more coats) in international orange and white shade and ofapproved brand & manufacture in equal alternate layers togiveanevenshade as per Aviation requirements over base coatofzincchromate yellow primerallcomplete as per the directions of the Engineer-in-charge. |
| 25 | (Agency shall arrange for all the material, labour, T & Petc. required for the operation.)*** Notes:1.TheitemINCLUDESforthefollowingand nothing extra shall bepaid on this account: a) The agencyshalltakeevery precautions againstthe damagesto thestructure or nearby structures while erecting the tower. c) Item includes for all operations,tools & plants, equipments, machinery etc. required for the work as well as safety measures as per the relevant IS codes.2. The itemdoesNOT INCLUDEforthe dome lights and its system,lighteningarrestor and earthing system for tower. These shall be paid under separate items, if and as required.3. The item does NOT INCLUDE the supply of tower material / dismantling of old tower & its transportation. These shall be paid under separate items, if and as required.(a) 40 m high tower weighingapproximately 10.25MT. |
| 26 | Supplying, installing, testing & commissioning of LED\"s (light emitting diodes) lamp of Vijay orBINAY or Avids or Litten or equivalenton circular drum covered with glass and supporting arrangement etc with inbuilt day night sensor and transformer etc complete. The aviation light shall be of low intensity type of approved makewhich can work at AC supply of 200 to 300 volt. The Item includes providing and fixing ISI marked 1.50 Sq mm PVC doubleinsulated and PVC sheathed copper conductor armored cable of approved brand and manufactrers, fixed with M.S clamps at suitable interval etc and fixing main switch board with MCB etc. at power supply point in exchange building oranyotherpointas per the directions of Engineer-in-chargeetc complete.NOTE:1 Therate includes for allthematerials, labour andT & P etc. required for all the works as mentioned above. |
| 27 | One lamp to be provided at the top of tower (up to 40 m height) as per Aviation requirements. |
| 28 | Providing, layingandtestingofRing Earth systemby running G.I. flat of size50 x 6 mm (having 6 mm diaholesat1m c/calong the length) all-round at 1.0 m awayfrom the tower base in ground at a depth of1.0 to 1.5 m from ground level in 300 mm wide trench. All tower legs shall be connected to ring earth by 50x6mm G.I. flat. The jointing of the two GI strips as well as joint inbetweenGIstrip and gusset plateoftowerlegshallbedonewith an overlap of 90 mm, sandwiching in between a lead sheet of size90 x 50 x 1 mmandbolted with 2 nosof10 mm dia GI nuts /bolts & spring washers.The jointing between the GI strips shall further be protected / sealed by wrapping properly with ISI marked 2\" wide water proof tape. Trench shall finally be refilled with good earth after providing & filling with sand, saw dust, charcol & salt at different layersup to specified depth includingmeasurement of earth resistanceby earth megger etc complete as per the direction of Engineer-in-charge.The value of the earth resistance should be less than 2.00 ohmandnothingextra shall be paid for getting earth resistance below 2.00 ohm. |
| 29 | NOTES :1. While laying the GI strips,they should not not be bentsharplyatrightanglesbut should be laid in smooth curves of about 1 m radius. 2. Therateincludesall thematerialsand labour required forall the above including lead sheet, water proof tape etc.The rate also include the cost ofExcavation & refilling of earth tobe done for earthing. 3. Measurement: Only the net length of GI strip shall be measured for payment. Nothing extra shall be paid for overlapping length etc. |
| 30 | Providing and fixing 50 x 3 mm G.I. flat of approved quality for making connection of lightening arrestor from the tower top to the ring /pit earthwith necessary clamps, fixtures etc. complete as per direction of Engineer-in-Charge. |
| 31 | Providing & fixing single spike solid copper lightening arrestorof 650 mm length, 12 mm dia. having necessary threads & brass nut at bottom end of the rod etc. Copper lightening arrestor is to be fixed approximately 1 to 2 m above the top of the tower over a \"lightening arrestor pipe stand\".all complete as per direction of Engineer in charge. |
| 32 | Tack welding for all nuts with bolts at site including foundation bolts up to a height of 2.50 mt from base plates using electric welding plant i/c the cost of transportation of the welding plant at site etc all complete as per direction of Engineer in charge. |
