Drilling and Installation of LDTW (Solar Operated) Scheme (1 no) at JL No-156,Plot No-512 of Narail Mouza of Gangarampur Block

DRILLING AND DEVELOPMENT OF TUBEWELL

Drilling of bore hole of suitable diameter upto required depth by water jet system through any type of soil including hire and labour charges for boring pipes, scaffolding, other tools and plants etc. and taking out the same all complete and other incidental works in this connection. The bore hole should have minimum 65 mm gap in between outside of the tube well pipe and the bore.

For lowering 100 mm nominal dia. PVC blank Pipe, bottom plug & screen / slotted pipe.

For lowering 150 mm dia GI/PVC pipe

Labour charges for lowering of pipe, strainers, blank pipe etc. and fitting, fixing the same including cutting, threading where necessary complete including other incidental works in this connection.

100 mm nominal dia. PVC blank Pipe, bottom plug & screen / slotted pipe.

150 mm nominal dia. GI/PVC blank Pipe, bottom plug & screen / slotted pipe.

Supply of gravel for use as pack in tube well of 2 mm to 4 mm. size(as per IS: 4097) and gravel treatment of tubewell including screening, washing, cleaning etc. of the gravels at the site, all complete as per direction of the Engineer-in- Charge. For Site at any distance of west Bengal upto 180 km distance.

Supplying, fitting and fixing including supplying of suitable jointing compound for fixing in position, threading, if necessary etc. all complete.

100 mm. dia. CI cutter piece 450 mm long with socket.

80 mm dia plug of approved make conforming to I.S. Specifications.

150 mm X 100 mm dia. UPVC Reducing Socket

Washing and development by pumping with 30 cum per hour capacity pump for a period till sand free water comes out and the discharge is about 30 cum per hour, followed by final yield test; inclusive of all tools, plants and scaffolding and hire charge of submersible pump, generator etc. all complete.

Making arrangement and showing verticality test including cost/hire charges of necessary tools and plants, scafolding, labour etc all complete as per direction of EIC.

Charges for mobilisation of drilling equipments, tools & plants etc and transportation of departmental materials from sub-divisional store to work site and returning excess departmental materials if any, to sub divisional store after completion of work .

Supplying, fitting & fixing of MS Plate of size 20cmx20cm, 6 mm thick make of two halves(20 cmx10cm) placed over housing pipe of LDTW to rest the supporting clamps,with semi circlar hole of 90 mm dia at centre including locking arrangement between the two halves on both sides, including fitting, fixing of 25mm dia G.I. bend by making a hole on plate for passing submersible cable smoothly and complete in all respect.

Supplying, fitting and fixing including transportation of Sign board of MS fabricated Structure Sheet Size 2 m x 1 m x 1.5 mm thick, MS flat bar (40 mm x 6 mm) welded with frame with 2 nos. MS Angle post (45 mm x45 mmx6mm) of 2.44 m length embeded 0.6 m into 1:2:4 Cement Concrete pasting flex on the MS Sheet ( 2 m x 1 m) as approved signage. This will include Civil construction works of foundation, Painting , material , fitting fixing and labour complete as per Drawing and direction of EIC.

Add GST @ 18% from item nos 2.00 to 9.00

Add cess @ 1.00%(On item nos 1,2,3,4,5,6,7,8,9 & 11)

SUPPLY OF MATERIALS

PVC PIPES & SCREEN (RIBBED) PIPES

PVC pipes of nominal dia 100 mm , wall thickness 5.0 mm , conforming to IS : 12818/1997 (medium casing) .

150 mm dia 7.5 mm thick (CM) PVC pipes with male female threaded duly ISI certification marked as per IS : 12818/1997 with latest amendments.

PVC Screen (Ribbed) Pipes of nominal dia 100 mm (O.D. 117 mm) , wall thickness 5.0 mm, conforming to IS : 12818/1997 .

COLUMN PIPES :

80 mm dia (NB ) MSERW Column Pipe heavy class (min. wall thickness of pipe 4.8 mm) one end screwed and other end welded with standard MS Flange( 3m long) as per IS Specification. TOP.

80 mm dia (NB) MSERW Column Pipe heavy class (min. wall thickness of pipe 4.8 mm) both end screwed and other end socketed (3m long) as per IS Specification. BOTTOM. ( to be supplied from surplus material)

ELECTRICAL ACCESSORIES ( Pump motor , Pump controller etc are included in the component of Solar pumping system)

3 Core 2.5 mm2 Flat Weather Proof Copper PVC insulated heavy Cable duly ISI marked as per IS 694/1990 with latest amendments.

OTHER M.S. ACCESSORIES

80mm NB heavy duty Supporting Clamps in two halves made of MS flats for holding 80 mm NB Column Pipes, thickness of the clamp 10 mm, width of the clamp 75 mm, extended length of the arm 150 mm, space between adjacent holes in either side of the extended arm 75 mm, equally spaced from the centre line of the arm, dia of bolt 16 m. The gap between arms of clamp and pipe assembly before tightening should be between 6 mm to 10 mm. Two nos. of bolt of 16 mm size shall be provided on either side of the clamp, in other words there will be all together 2 rows of bolt with the provisions of 4 nos. of bolt with nuts and with spring and flat washer. ( to be supplied from surplus material)

Supply and Delivery of Nominal Bore(PD) Sluice Valve Pressure Designation P.N. 1.6 with Hand wheel, ISI Marked Sluice Valves for water works purpose, C.I. Flanged type as per IS 14846/2000 with latest amendments. Components/Parts of Sluice valves shall be manufactured from basic materials given in Table of IS 14846/2000 with latest amendments no. 1,2,3 & 4. The valves shall be tested for (closed end test) against Hydrostatic Test Requirement. i) For 80 mm dia. C.I Sluice Valve. ( to be supplied from surplus material)

80 mm (NB) MS /GI ERW 90 degree Bend as per IS 1239 (Part-II)/1992 with latest amendment, both end welded with flange as per IS 6392/1971, Table-17 with latest amendments. Both bend & flange are duly ISI certification marked.

Lay Flat hose of 75 mm nominal size polyster reinforced lay flat hose (the hose should has, wall thickness 1.3 ± 0.3 mm working pressure 3.0 kg/m2 & brusting pressure (9 kg/m2). The Lay flat hose should have a standard length of 100/200 m roll.

SOLAR PUMPING SYSTEM

Solar Module: Supply , transport , installation and commissioning of ISI marked Solar Modules as per following specification: ( 1) Cell: Indigenous mono crystalline silicon SPV cells (2.) Solar Module: Monocrystalline cell with PERC technology / module with bifacial cell. ( 3.) Standards: ISI marked as per IS 14286 and having certification of IEC 61853(1), 61730(1&2), 61710 (4) .Modules must qualify to IS 170210 (Part 1) ( 5).Min. Efficiency: 19.5%. ( 6.) Fill factor: More than 75% . (7.) Module wattage mismatch in the SPV array: within ±3%(8.) Wattage output warranty:Should not be less than 90% at the end of 10 years and 80% at the end of 25 years. (9.) The power output of individual PV modules used in the PV array, under STC: minimum 300 Wp. Necessary test certificates also to be supplied. For detail information please see Cl. no. 2.1 of technical specification .

For 5 HP Off-grid / On-grid Solar Water Pumping System with Monocrystalline/ Monocrystalline PERC/bifacial SPV modules - 5400-5800 Wp.

Module Mounting Structure : Supply , transportation & installation of G.I manual tracking / Fixed structure made of MS hollow sections, pipes, plates, angles etc as per IS:4923, IS:1161/1239, IS:1079/2062, to hold min 300 Wp SPV Module as per drawing and technical specification. The steel structure is to be protected with minimum 80 micron galvanisation(hot dip) and provided with fixed arrangement or dual axis manual tracking arrangement for three times in a day and seasonal tilting to face the sun optimally. The approximate weight of the Module Mounting Structure given in Clause no.5.1 should be followed.( 1 no. 6 module + 1 no. 4 module Fixed str.) (350 kg + 280 kg) = 630 kg

Foundation of Module Mounting Structure: Suitable and stable Reinforced Cement Concrete foundation for dual axis manual tracking SPV Module structure as per drawing.

For 4 module structure

For 6 module structure

For 5 HP capacity Pump-motor set with DC input

Cable and Accessories : Supplying, fitting and fixings of UV rated Copper Cable laid inside HDPE conduit and other accessories as per followings with necessary connection with the Solar PV Module, MPPT etc. i. 4.0 Sq mm single core multi studs - 5m(for 1HP/2HP/3HP) & 20m(for 5/7.5/10/15/17.5/20 HP) ii. Lugs, HDPE Pipe, Flexible Pipe, Saddle, Cable tie etc For 2 or more structure per structure with 9m distance between sturctures.

Earthing: Earthing with 50 mm dia GI pipe 3.64 mm thick x 3.04 Mts. long and 1 x 4 SWG GI (Hot Dip) wire (4 Mts. long), 13 mm dia x 80 mm long GI bolts, double nuts, double washers incl. S & F 15 mm dia GI pipe protection (1 Mts. long) to be filled with bitumen partly under the ground level and partly above ground level driven to an average depth of 3.65 Mts. below the ground level as below: By ISI-Medium GI pipe including excavation of soil for installation of Earth Electrode and filling & ramming and connecting to individual structure to earth electrode including S&F 20 mm x 3 mm galvanised (Hot Dip) MS flat on wall/floor with GI saddles as required and connection to equipments incl. drilling holes, with bolts, nuts, washers etc.

Lighting System at Scheme: (with lighting Pole) : Dusk to dawn lighting arrangement of at 4 mts height above ground level, with Hot dip galvanised 80 mm x 50 mm , medium duty pipe, with 12 V, 15Ah 2-in-1 Lithium ion/ Ferro- Phosphate battery with in-built 7-11watt LED lamp , 50 Wp solar panel (min 19% Eff.) to cover the scheme area. The lighting system should be warranted for 5years from the date of installation.

Lightning protection (Pole mounted): Lightning protection with 3" X 1.5" G.I pipe of 6m + 1 m height with base flange in proper RCC foundation and S & F Lightning Conductor Air Terminal made of 20 mm dia 1000 mm long GI pipe (ISI Medium) having five discharge prongs of 4 SWG GI (Hot Dip) wire at top duly soldered with 7/16 stranded GI (Hot Dip) wire and 85 mm dia 6 mm thick GI base plate at bottom incl. necessary holes etc. Earthing with 65 mm dia GI pipe (Medium) 3.0 Mts. long and 1 x 19/10 stranded GI (Hot Dip) wire (4 Mts. long), 20 mm dia x 125 mm long galvanized bolt, double nuts, double washers including socketing at both ends of stranded GI (Hot Dip) wire by crimping sockets/ thimbles and S & F 65 mm dia GI pipe (ISI-Medium) protection (3 Mts. long) to be filled with bitumen partly under the ground level and partly above ground level to an average depth of 3.65 Mts. including connection to earth electrodes with 25 X 6mm G.I strip. (Provision of one lightning protection for each scheme as per drawing)

Supply and installation of 3 phase AC electromotor pump-motor set with speed of 3000 r.p.m(synchronous speed) suitable for Solar applications and shall have 60 months guarantee for the following conditions including loading, unloading, transportation etc.:- (Refer technical specification for more detail) 5 HP 3 phase AC Pump-Motor set having discharge at required head as below:- Submersible Pump-motor set for LDTW with external part made of stainless steel of grade 304 or higher as per IS 6911 and IS 3444,with discharge of 7.5 Lps- 5.83 Lps at 30 mts.-35 mts. total head with cable(3m), cover plate, Socket, Flanged Nipple, Rubber Insertion, Nuts& bolts and all other accessories including transportation of Bend, Column Pipes, cable, sluice valve, lay flat hose pipe etc. from Deptt. Store to site within 100km. The pump motor should be tested as per IS 8034:2048(third revision)

Testing and commissioning of scheme after completion of all work

Comprehensive maintenance charges for 5 years (which cover monthly inspection, Yearly training to WUA, to attend breakdown within 3 days and to keep the scheme in operation without lapse of time) For 5 HP both for Submersible & Surface pump Note:1 Total comprehensive maintenance charge is to be withheld in addition to Securirty Deposit. Comprehensive maintenance charges will be released @ i) Rs 0.80 for 2 HP, ii) Rs.0.80 for 3 HP, iii) Rs.0.60 for 5 HP / 7.5/ 10 HP / 15HP / 17.5HP and 20 HP Submersible & Surface per Wp per year at the end of each maintenance period i.e.at the end of 1st year, 2nd year, 3rd year, 4th year& 5th year. In case the “Bidder” does not provide service during the warranty & comprehensive maintenance period, the amount so held up will be forfeited

Insurance @ 2% for Item No. 26.01,29.01,32 & 34 for a period of 5 years. Note:2 Ist year's Insurance charge is to be paid on production of Original Receipt of premium payment. Remaining 4 years Insurance payment is to be withheld which will be released during 2nd, 3rd , 4th & 5th year on production of Original Receipt of premium payment. (2% of Rs 296617.00)

Remote monitoring for 5 years: Provision for remote monitoring for the pumps must be made in the pump controller through an integral arrangement having following basic functions: a. Controller must be assigned with a unique serial number and its live status must be observed remotely on online portal through login credentials. b. Live status must indicate whether controller is ON/ OFF. The parameters i.e. the water output, water flow rate, in fault condition, array input voltage/ current, power and motor frequency should at logged at an interval of 10 minutes c. Controller must have a back up to store the data locally ( at least for 1 year) supply & installation of GSM/GPRS based Data Transmitter or Modem and to provide remote monitoring service to transmit the parameters to central server from the solar pumping system with time stamp at user-defined interval and report generation at the buyer end. (Refer Technical Spec.)

Cleaning and washing of modules once in a month with clear water to remove deposited dust and dirt on the module surface and keep the modules clean throughout the year. The activity to be performed for eight months in a year excluding four monsoon months. A log book should be maintained at thr site for the said purpose.

Extra transportation @ 2% for item no 26.01 & 27 ( on Rs 273276.00)

Add GST @ 18.00% (on item nos 26 to 40)

Add Cess @ 1.00% (on item nos 26 to 41)

Formation, Registration and Nurturing of WUA with activity & budget at mouza Baikunthapur (Detailed Estimate copy attached with NIT document)

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