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GUIDELINES FOR PREPARING THE CIVIL COST ESTIMATE OFTRANSMISSION SYSTEM PROJECTThe following shall be considered while preparing the cost estimate of TransmissionSystem Project:1. General Layout of Transmission System Project:

The following drawings shall be provided with the civil cost estimate of theTransmission System Project:(a) The single line diagram of the Transmission Lines plotted on themap of India showing the different wind zones through which theLine is passing.(b) The typical foundation drawings showing the type of foundationsproposed to be used for transmission line towers in theTransmission Line Project.(c) The arrangement of tie beams and pile caps in case of pilefoundation proposed to be used in the river crossing towers ortowers in the water logged area.

(d) The general layout of the substation proposed to be considered.(e) The layout of control room building proposed to be constructedinside the sub-station area.2. Technical Specification and Salient Features in brief:The Technical Specification and Salient Features of the transmission systemproject in brief shall be given. The following information shall be appended withcivil cost estimate of the transmission system project:(a) The design criteria followed in the design of the transmission lineand sub-station civil works.(b) The terrain of the route of transmission line and site of thesubstation.(c) The details of the river crossing to be encountered in the route ofthe transmission line.(d) Report of the survey and soil investigation conducted for theproposed transmission lines and sub station.(e) Type of tower configuration used and type of the conductor andearth wire used in the construction of transmission line.(f) The switchyard equipment to be used in the switchyard area.3. Quantity Calculations:The format for abstract of quantity of civil works of Transmission Linesand Substation as given in Annexure-1 & Annexure-2 respectively. Quantitycalculations in support of the details included in the abstract of item wise costshould be appended with the DPR along with the relevant drawings/outlinediagrams etc. as considered essential in the case. The total quantity of an item ofthe work shall be coordinated to avoid any duplicity of the items.4. Rate Analysis:The cost estimates of the Civil Works shall be based on the prevailingbasic rates of materials, equipment and labour rates. These rates shall be based onStandard Schedule of Rates of CPWD/State PWD/District/SEBs and a copy ofthe rates from the Standard Schedule of Rates shall be appended with the DPR.

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Wherever the items differ from Standard Schedule of Rates, the analysis of ratesbased on standard procedures duly approved by the Competent Authority shall beattached invariably. The rates based on similar projects in the vicinity andpercentage provisions shall be utilized for checking of the overall provision,however these rates cannot be the basis of the estimate. The rate analysis shall be

compiled in the format enclosed at Annexure-3 for ready reference.5. Abstract of Cost:Abstract of cost of civil works including expenditure incurred already upto date and the provision required for the balance work including the quantity, rateand amount of each of the item included in the estimate.6. Revised Cost Estimate/Completed Cost Estimate:6.1 In case of transmission line projects which have been approved by thePlanning Commission and where the revised cost estimate have increasedby more than 15% of the original estimates, excluding escalation due toprice rise or where there is change in scope, will be required to befurnished to CEA for examination in the same way as new transmission

system projects irrespective of the fact whether the revision is due tochange in scope or not. The procedure for scrutiny for such revised costestimate is same as outlined in the preceding paragraphs.6.2 In respect of revised projects estimates where there is no change in thescope and where the cost excluding escalation due to price rise has notchanged by more than 15%, detailed revised cost estimate need not to befurnished by the Project Authorities. For such projects the Project

Authorities should send an excess note. The note shall include the salientfeatures of the project as originally proposed and as being executed at site.The CEA will examine such estimates broadly and send its view to the

Advisory Committee for consideration and recommendation of thePlanning Commission.6.3 In case of the projects which undergo modification and revisionsubsequent to their approval, the information required to be prepared ingood time so that approval from the Planning Commission is receivedbefore any commitment over and above the sanctioned cost estimate.The revised cost estimate should also include variation statementshowing the variation in cost of different subheads. The quantities andrates of important items should be furnished in the enclosed Performa at

Annexe-5. Other items should be included in the revised cost estimate asmiscellaneous items.The revised cost estimate should include an analysis of the reasonsfor the increase in the cost of different subheads as detailed below:1. Rise in prices including variation due to exchange rate.2. Rise due to change in scope.3. Rise due to inadequate provisions in earlier estimate.4. Rise due to change in design.5. Additional requirements/new items.6. Rise due to other causes such as inadequate plan allocation,arbitration, legal cases, poor performance of equipment,

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procurement problems etc.6.4 When revised cost estimate is prepared during the construction of theproject, the quantities of the items completed should be indicatedseparately and the cost thereof assessed on the basis of actual expenditure.

Any liability arising out of the contract for the completed work and

affecting the cost should also be considered in the estimate.For work in progress the estimates should be based on the contractrates. If the contract document contains any clause for escalation on theprices of the materials and labour wages subsequent to the award of thecontract, the amount involved should be assessed and included in theestimate.For the balance work to be done, the cost should be estimated onthe basis of rates prevalent at the time of the preparation of the revisedestimates.