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SECTION - IGENERAL TECHNICAL REQUIREMENTS

TECHNICAL SPECIFICATION

1.1 SCOPE

1.1.1 The specification covers design, manufacture, assembly, material testing,supply and delivery for project site in Bhutan, storage, transportation of materialsto work sites of galvanised steel towers, AC ! "olf conductor, #$ core %&'",insulator strings complete with insulators and hardware, conductor and %&'"accessories ( all other line materials, detailed)check survey, erection, testing andcommissioning of *+ km long angdechhu to Bumthang Transmission line as

per the route alignment shown in e-hibit 1 on turnkey basis in #/ months fromthe date of placement of 0% )order, whichever is earlier.

1.1.# The tenderer shall 2uote in two parts &art 3Technical and 'eneral Terms and

Condition4 and &art 3&rice Bid4 for complete work of design, fabrication,galvani5ing, testing and supply of towers and complete line materials anderection, testing and commissioning of 66 k7 )c Transmission line. Theincomplete bids are liable to be rejected.

8or detailed scope, the stipulation given in each Chapter shall be applicable.

Tower Types B, C, 9 ( pecial Towers and B, C, 9 and pecial Towers shall bedesigned separately for non snow 5one and snow 5one areas respectively, with thefollowing minimum temperature.

i: ;on now a-imum tension for non snow 5one ( snow 5one areas shall be as under>

a: ;on ? now

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The initial conductor)%&'" tension at *# oC and 1= oC in case of snow and without windshall be considered #=@ of ultimate tensile strength of conductor ) %&'".

DESCRIPTION

The scope includes the detail survey, check survey, soil investigation for which the mosteconomical and stable route will have to be selected by the contractor. The routealignment is to be fi-ed by the contractor together with representative of the %wner afteraward of the Contract. After detail survey the Contractor shall be re2uired to prepare final

profile and submit for approval of Bhutan &ower Corporation B&C:. Based on the finalsurvey report accepted by B&C, actual 2uantities of different type of towers and linematerials will be calculated for purpose of supply, e-ecution and payment.

The bidder shall 2uote for the complete work of design, fabrication, galvani5ing,testing, supply of towers as well as line materials which includes conductors,%&'", insulators, hardware, earthing materials and conductor)%&'"

accessories etc., erection of the line complete in all respects, failing which thetenders shall not be considered. The unit rates 2uoted against provisional2uantities in the schedule shall be applied for the final 2uantities arrived at aftercompletion of survey by the Contractor.

BIDDERS QUALIFYING REQUIREMENTSn addition to the ualification !e2uirements mentioned in ection 3 nvitationto Bids4 ;B: and ection 3 nstructions to Bidders4 ;B: of 7olume , thefollowing shall apply to enable the Bidders to participate in this Bid.

a: The bidder and his associates must have e-perience of design, fabrication,testing, supply of galvanised towers and survey, erection, testing andcommissioning of 1// km, 66k7 transmission lines preferably in hilly areas,supply of =/// T of towers for 66 k7 and higher voltage lines, supply of1=// km, *+ strands ( above AC ! conductor, *// km of + strand galvanisedstranded steel ground wire)%&'" and 1/,/// nos. of +/ k; and higher si5einsulator discs for 66k7 0ines, supply of conductor and ground wireaccessories and insulator hardware for 1=// km *+ strand and above CAconductor and *// km. of ' ground wire ) %&'" respectively, in the lastfive years prior to the bid opening date. The completed transmission lineincluding river crossing and e2uipment offered should have been in successfuloperation for the last three years. The certificates of successful operation ofline including river crossing)deep valley crossing must accompany the tender.

b: Collaborator)associate should have at least 1 one: set of tension stringinge2uipment and should arrange an additional tension stringing e2uipment at thetime of stringing. The Tenderer shall note that if he fails to arrange secondstringing machine at the time of stringing, the purchaser will arrange stringinge2uipment to get the stringing work done at the risk and cost of the successfulTenderer.

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c: ;otwithstanding anything stated above, the purchaser reserves the right toassess at the time of award the Bidder s capability and capacity to perform thework should the circumstances warrant such an assessment in the overallinterest of the purchaser.

d: n support of e-perience, the bidder shall furnish performance certificate in

respect to latest contract for designs, fabrication and supply of towers for 66k7 and above Transmission lines. 8or turnkey e-ecution, the performancecertificate to be furnished shall be in respect of 66k7 lines or above.

e: The bidder shall submit documentary evidence to establish compliance to theabove ualification !e2uirements to the satisfaction of the &urchaser.

f: The details of supply including installed capacity, licensed capacity, supplydetails including type, 2uantity, dates of order, dates of commencement andcompletion of supply, the name of purchaser and status of jobs in handincluding scheduled completion dates shall also be furnished with the bid, forthe last five years. The bidder should furnish the past performance details as

per Anne-ure ? 7 of ection ;B of 7olume . imilar information shall be

furnished in case of erection also.g: The manufacturer shall have ade2uate material testing facilities to conduct alltests and furnish the list of testing e2uipment alongwith the tender.

h: The bidder must have in house design capability and facilities.i: Bhutanese ) ndian Class DA contractors who are eligible to bid for these

works.j: The annual turn over of the bidders shall not be less than !s. ) ;u. 1//

million in the last three years.

COMPLETION SCHEDULEThe complete work i.e. design, manufacture, testing and supply of tower parts andaccessories, power conductor, %&'", conductor ( %&'" accessories, insulatorstrings and hardware fittings, erection, testing and commissioning ofTransmission 0ines are to be completed on turnkey basis within #/ months fromdate of signing of the contract agreement between the contractor and Bhutan&ower Corporation B&C:. The tenderer shall submit along with the tender a barchart giving schedule for completion of entire works covering supply as well asfoundation and erection indicating commencement and completion of eachactivity considering 5ero date as the day order is placed. The tenderer ) biddershall also indicate the number of independent gangs)groups intended by him to bedeployed for e-ecution of the work.