Water Resources Development Directorate Tender

DRILLING, INSTALLATION OF HYBRID 100 MM DIA SHALLOW TUBE WELL a) Drilling of bore hole of suitable diameter upto required depth by water jet system through any type of soil ncluding 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. N.B.:-(a) Measurement will be taken below Ground Level taking Ground Level as zero for payment.

(b) For Siliguri Sub-Division/ Alipurduar Sub-Division/ Malbazar Sub-Division/ Jalpaiguri Sub-Division the above rate shall be enhanced by 20%.

(a) Extra over rate of drilling in soil for boring through hard compact clay by rotational hand sludge method including hire and labour charges for boring pipes, scaffolding, other tools and plants etc. and taking out same complete (total boring by this m

b) Extra over rate of drilling in soil for boring through boulders (Sandstones etc.) beyond initial 7 meters by combination of hammering and hand sludge method including hire and labour charges for boring pipes, scaffolding, other tools and plants etc. An NB: Execution of Item 2(a) and 2(b) shall be limited within the area under lain by pidmont zone in Jalpaiguri District (except Sadar, Maynaguri & Rajganj Block); Siliguri Sub-Division and Tufanganj- I & II Block.

Labour charges for lowering of pipe, strainers, blank pipes etc. and fitting, fixing the same including cutting, threading where neccessary complete including bucket washing and other incidental works in this connection. (ii) 100 mm dia G.!. Blank pipe, Bottom Plug with cutter, Brass Jacketted / stainless steel strainer.

Supplying and filling up of the annular space between the Well Pipe and the bore hole by coarse sand including watering as necessary as per direction of the Engineer-in-Charge.

Supplying, fitting and fixing including supplying of suitable jointing compound for fixing in position, threading, if necessary etc. all complete. a) 80/100 mm dia Steel cutter piece upto 450 mm long with socket.

b) 80/100 mm dia M.S. threaded top cap fixed in position

g) 250 x 50 x 6 mm thick, 80 mm dia, M S Supporting clamp with 2 nos 12 mm dia 65 mm long bolts, nuts,washer, on each side.

h) 80/100 mm dia plug of approved make conforming to IS specification .

Embedding the clamped neck of the tube well below ground level in 1:2:4 cement concrete with 20 mm down stone/ local gravels including cutting earth etc all complete as per direction of Engineer-incharge.

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 Complete.

Labour charges for testing of 5 H.P. Pump set at site for at least 1 (one) hour Each 556.34 including supplying necessary fuels and lubricants.

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

SOLAR WATER PUMPING SYSTEM Solar Module: Supply , transport , installation and commissioning of ISI marked as per IS 14286 and IEC 61853(1), 61730(1&2), 61710 certified Solar Module of Multicrystaline/ Monocrystalline/ Monocrystalline PERC/ bifacial cell with min. efficiency of 15% and fill factor more than 70%, laminated between sheet of -Ethylene Vinyl Acetate (EVA) and high transmissivity 3.2/4.0 mm tempered glass , framed in anodized aluminium frame .The power output of individual PV modules used in the PV array, under STC, should be a minimum of 300 Watt peak, with adequate provision for measurement tolerances.Modules supplied with the SPV system should have warranty for output wattage, which should not be less than 90% at the end of 10 years and 80% at the end of 25 years. Necessary test certificate also to be supplied. e) For 3 HP Off-grid Solar Water Pumping System with Polycrystalline SPV modules - 3200-3300 Wp.

Module Mounting Structure ( For 2HP, 3HP and 5HP Solar Water Pumping System): Supply , transportation & installation of G.I manual tracking structure made of MS hollow sections, pipes, plates, angles etc as per IS 1161/1239, 1079/2062, to hold min 300 Wp SPV Module as per drawing and specification of MNRE . The steel structure is to be protected with minimum 80 micron galvanisation (hot dip) and provided with dual axis manual tracking arrangement three times in a day and seasonal tilting are to be regulated to face the sun optimally. The weight of the Module Mounting Structure holding 4 Modules should not be less than 195Kgs, holding 6 Modules should not be less than 210 Kg and holding 8 Modules should not be less than 245 Kg.

Foundation of Module Mounting Structure: Suitable and stable Reinforced Cement Concrete foundation for dual axis manual tracking SPV Module structure as per approved drawing. b) For 4 module structure.

Power conditioning unit with IP54 enclosure : Supply , transport , installation and commissioning of IP 54 protected enclosured Inverter Unit qualifying IEC 61683-Efficiency measurement and IEC 60068-2-Environment Standard , safety standard suitable for 3 Phase A.C. motor, IGBT based high voltage switching inverter with MPPT technology, to take care of the variation of Sun light and will be suitably mounted inside the metal enclosure. Inverter should have protection against Dry run, Over current, Under current, Over voltage, Under voltage, Short circuit etc. System should be able to run at low sunshine and minimum 7 to 8 hours a day run should be possible during normal sunshine.condition. Inverter should have option to auto start for any short trip off due to low light/ cloudy situation except for dry run. Inverter should be provided with a display to show the various parameter by the user such as Voltage, Current, Solar panel DC voltage, Inverter IGBT temperature, Out put AC voltage, Output frequency, Pump flow (direct or calculated method), Irradiation etc . The system should store the data at a set interval, be capable to transfer it to external storage device and support communication of its operational parameters and logs over Modbus protocol . It should also monitor and save total run time, total water pumped etc . There should be provision for interfacing GPRS based data transmission. b) For 3 HP capacity Pump-motor set

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 - 10 Mtrs (Minimum) ii. 6.0 Sq mm single core multi struds -5 Mtrs (Minimum) iii. Lugs, HDPE Pipe, Flexible Pipe, Saddle, Cable tie etc b) For 3 HP per structure

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.

a) Lighting System at Scheme: (with lighting Pole) : Dusk to dawn lighting arrangement of at 4 mts height with 75 mm x 50 mm G.I. pipe with 12 V, 40Ah 2-in-1 Lithium ion/ Ferro- Phosphate battery with in-built 11 watt LED lamp , 50 Wp solar panel to cover the scheme area. The lighting system should be warranted for 5years from the date of installation.

8 b) Lightning protection (Pole mounted): Lightning protection with 3" X 1.5" G.I pipe of (6+ 1) mts 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 electromotor pump-motor set suitable for Solar operation covering 5 years warranty for the following conditions including loading, unloading, transportation etc.:- b) 3 HP ISI marked 3 phase surface mounted Monoblock Pump-motor having discharge at required head as below::- i) Surface Pump-motor set for STW & Pump Dug Well with discharge of 7.14 Lps at 16 mts. total head with foot valve, required quantity of flexible suction pipe, clamps, bend, footvalves and all other accessories to complete connection of suction and delivery side .

Testing and commissioning of scheme after completion of all work

Comprehensive maintenance charges for 4 years beyond 1 year warranty period (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) b) For 3 HP surface pump Note:1 Total comprehensive maintenance charge is to be withheld in addition to Securirty Deposit . Security Deposit will be released after expiry of warranty period of 1 year & Comprehensive maintenance charges will be released @ i) Rs 1.00 for 2 HP, ii) Rs.1.00 for 3 HP, iii) Rs.0.75 for 5 HP Submersible & Surface per Wp per year at the end of each maintenance period i.e.at the end of 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

Supply fitting and fixing of Hot dip Galvanised ( min 80 micron) / Powder Coat painted M.S Kiosk Box / Stainless Steel Kiosk of SS304 of 710(L) X 410(W) X 740(H) and total height with legs is 1670mm for mounting of motor-pump set including transportation, grouting in Cement Concrete as shown in drawing.

Insurance @ 2% for Item No. 1, 4, 7a/7b, and 9 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.

Note: (i) Extra rate for diffecult/Reverine Areas connected by river route and/or ferry crossing as applicable as per current PWD Schedule of Rates (Building Works) for item no. 2 & 3. (ii) Extra rate for transportation @ 2% for item no. 1 st& 2 as applicable for the district of Malda, Uttar Dinajpur, Dakshin Dinajpur , Jalpaiguri, Cooch Behar and Alipurduar.

GST 18% FOR PROCUREMENT OF MATERIALS (SL 1 to 3) AND 12 % FOR REST ITEM

CESS 1 % (BASIC COST + GST)