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| 1 | Preliminary survey for Identification of 3 alternative routes using satelite imageries (1:25,000 PAN +LISS merged) for NRSA.Google images and Survey of India maps and finalization of most economical, Optimum route showing the topographical and other features upto 8Kms on either side and indicating final selected route alignment and digital modelling final selected route alignment and digital modelling in undulated hilly terrain along the proposed route using contour data from topographical map and submission of preliminary survey reports for approval as detailed in technical specifications. |
| 2 | Detailed survey along the approved route alignment approval after conducting the preliminary survey by using Modern survey equipment like GPS/DGPS, Total stations including profiling tower spotting and optimization of locations by using computer aided technique like ALTM as well as other activities as detailed in the scope of work using PLS-CADD software and submission of draft report for approval. a. Drawing the route profile including Geographical features like Nalas, Rivers, Gardens, P&T Lines, Railways crossing etc. b. KMZ/KML file of approval route. c. Levelling of the profile with reference to Survey of India bench marks(MSL) d. Tower Schedule. e. Line Schedule. f. Burgle details by using Modern Survey techniques and providing GPS, Co-ordinates at each anchor points for identification of anchor locations indluding permanents marks like poles, telephones lines, buildings etc. |
| 3 | Providing and fixing RCC pillar (M-20) of size 150 X 150 X 1000 mm, with approved marks including painting above the ground level and yellow lettering and marking the direction of incoming and outgoing lines are to be marked clearly on the top with red colour.IF the distance between such anchors points is more than 1KM one more directional stone is to be fixed. So also, for the road crossings, railway crossing and nala crossings on both the sides. |
| 4 | Digitized contouring at undulated/hilly tower locations as detailed in technical specifications for assessing the quantum of benching and revetment required and submission of draft report of the work |
| 5 | Preparation of Schedule and Documents |
| 6 | PTCC Proposal containing PTCC questionnaires, topo sheet extracts with marking of the proposed line, SR report, tower sketch, station single line diagram etc. (10 copies/set) |
| 7 | Tree schedule containing the details like name of tree, girth size, distance from central line of the alignment, approx height of tree etc., complete and submission of draft report for approval .The details shall be surveyed no.wise along the corridor. (As Per Technical Specification) |
| 8 | Railway Crossing proposal with drawing inclusive of graph sheets and other stationery materials, labour etc. (6 sets/crossing) |
| 9 | Submission of Detailed consolidated report on the surveying work done appending all approved draft reports including all relevant information collected during survey, calibration certificates of the instruments used for the work, photos taken at site and submitting soft copies of all documents and report in 6 sets. The detailed report shall contain following approved draft reports. Preliminary Report Detailed Survey Report Soil classification report with location wise Tree Schedule Line Schedule Burgie details Digitized contours Digitized village map geo reference and superimposed on the line corridor |
| 10 | Preparing of proper layout drawing of the switchyard of Namrup GSS (2 Nos. of outgoing bays to OIL) to scale along with SLD clearly specifying the schemes on AutoCAD as per technical specification |
| 11 | Preparation of BOQ for transmission line as per format given and Preparation of BOQ for XLPE cable route if required. |
| 12 | Preparation of BOQ of every item for the remote end bays (at Namrup GSS) in consultation with site in-charge. |
| 13 | Survey using total station/DGPS of the entire land area up to an offset of 10 m and the approach road outside the substation boundary. In 3 m X 3 m grid, proposed FGL, calculation of earth volume in cutting and filling separately. Submit the contour drawing in AutoCAD 2D as well as 3D. |
| 14 | Construction of two (2) nos. of permanent RCC benchmark pillars at suitable locations such that all future references can be obtained from them. Size of the pillar should be minimum 300mm X 300 mm HFL & FGL markings should be shown in the benchmark pillar. Construction of RCC pillar along the boundary of the plot at every angular point with size 125mm X 125mm and 900 mm height. |
| 15 | Preparation of Master Plan by marking of switchyard, control room, incoming and outgoing feeders, residential buildings, approach road, internal roads, drainage system, storm water management, Retaining wall, Boundary wall, security fencing, gate, street lighting etc required to complete a substation in AutoCAD. |
| 16 | Detailed AutoCAD drawings of each building with plan of each floor, elevation and section from all sides, Plumbing and sanitary layout, Electrification details etc. |
| 17 | GA Drawing for Water supply arrangement including provision for bore hole, overhead tank, pipeline system, etc in detail. |
| 18 | Preparing a Proper Substation Layout Drawing to scale along with SLD clearly specifying the schemes on AutoCAD along with switchyard BOQ of every item Please Enable Macros to View BoQ information |
