WBPWD/SE/SWEC/NIQ58/2023-24

Amount

SOLAR PV MODULE/ARRAY: Supply & Installation of 20kW on Grid Rooftop Solar Power Plant (Make-Havells/TATA POWER / Panasonic/Luminious Solar/Lubi) to be installed and to connect witn the DISCOM grid in the scheme of net metering of WBSEDCL and WBERC ,incl. all interconnection and wires and Cables need to be complete the plant Upto the WBSEDCL NET Meter. Array Junction Box : 20kW,1.1kV Grade, for combine incoming from solar panel and deirve one output with integrated Surge protection and reverse current protection during night and cloudy days. (a) The module shall made up of Mono-Crystalline silicon cell (b) The interconnected cells shall be laminated in vaccum to withstand adverse environmental conditions (c) The module frame is made of corrosion resistant materials, preferably having alumunium anodized finish (d) The minimum clearance from the lower edge of the modules and the developed ground level should be 300mm/75mm for tin shed (e) The SPV Modules must be IEC 61215, IEC 61730 part I & II, IEC 61701 certified from any of the accredited certifying agencies (f) Each solar PV Module must be warranted by manufacturer at least 80% rated power for 25 years. (g) Module to Module earthing is necessary with 1 C 2.5sqmm Cable including five (1) years Comprehensive Maintenance on turnkey Basis as per the Specification furnished below

ON GRID POWER CONDITIONING UNIT (INVERTER): On Grid Solar Inverter with remote monitoring system 20kW Rated output-3 Ph, 415V(Make- Havells/TATA POWER / Panasonic/Luminious Solar/Lubi) Power Conditioning Unit(PCU): Power Capacity-20-25kW, Max. DC input voltage-1000, DC Max. Power Operating Range-480-850W,DC Operating voltage range(Vdc)- 200-850V DC Minimum Start Voltage-250V, DC max. Operating Current-108A, DC short circuit current per Channel-165A Maximum input sourced backfeed current-0, DC input Overload Current Protection, AC nominal voltage operating range-480V/243 to304V AC maximum continious output-5000 ,Standby Losses(W)-<1.5W, Connectivity-Ethernate,Modbus USB,RS 485,Connector-MC4 Plumbing Solution: a plumbing network to be installed with pressure pump for cleaning of solar module and remote monitoring system to installed for online monitoring of plant performance.

SOLAR PV MODULE MOUNTING STRUCTURE: Hot DipMS galvanized supporting structurer (as per approved design) with base fixing by SS304 (Stainless steel) fastener that utilize the most of the daylight throughout the year, can withstand wind speed upto 150km/hr.

ELECTRICAL ACCESSORIES, CABLE TRAY & CONDUITS: Supply Delivery installation of Rooftop Solar power plant, on grid topology of capacity 20kWp with all necessary wires & cables, standard cable run arrangement complete with all necessary Balance of Systems and components

SUPPLY & LAYING OF AC CABLE: 4CoreX25Sqmm XLPE,1.1kV Ar/Al cable from PV Inverter to Distribution Cuiruit (Havells/Gloster/Polycab/RR) -

SUPPLY & LAYING OF DC CABLE: All cabling should be with stranded copper wire(Havells/Gloster/Polycab/RR) of 4sq.mm(from PV string to array Junction box)-and 6sqmm(From array Junction box to Inverter)

ELECTRICAL PANELS: Supply Delivery Installation of Rooftop Solar power plant a. DCDB: 4in 4out, 50A MCB, 1000V SPD, 1P65 Enclosure b. ACDB: 1 in 1 out, 63A MCB AC SPD - IP65 with metal enclosure & RYB lights

INSTALLATION, TESTING & COMMISSIONING: Supply of Class C Items and installation & commissioning of the plant along with Net meter application (if applicable)

TERMS AND CONDITIONS: a) Warrantty for Solar Panel: 10 years product Warranty: Upto 10 Years for 90% of Rated Power. 11-25 years for 80% of Rated Power. b) Warranty for Grid Tied Inverter: 5years from the date of Installaion c) Routine maintenance/checking should be done by the Agency upto the Warranty period and in case of breakdown should attend within 24 Hrs with skilled technician during the warranty period. a) Warrantty for Solar 3 phase Inverter: 10 years product Warranty

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 By ISI-Medium GI pipe.

Excavation of soil for installation of Earth Electrode and filling & ramming. for Soft Soil.

Supplying & fixing earth busbar of galvanized (Hot Dip) MS flat 25 mm x 6 mm on wall having clearance of 6 mm from wall including providing drilled holes on the busbar complete with GI bolts, nuts, washers, spacing insulators etc. as required.

Connecting the equipments to earth busbar including S & F 4 SWG GI (Hot Dip) wire of size on wall/floor with staples buried inside wall/floor as required and making connection to equipments with bolts, nuts, washers, cable lugs etc. as required and mending good damages.

LIGHTNING CONDUCTOR :- 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. complete duly grouted on the parapet etc. in CC mortar ( 4:2:1), including thimble joints of 7/16 SWG wire and GI strip with SS nuts, bolts & washers. ( NS)

Supply & fixing GI (Hot Dip) strips 25 mm x 6 mm thick for horizontal run on the Parapet/Roof/ Wall with GI Saddles 1100 mm apart incl. mending good the damages to building works, including welded lap joints, 'T' joints etc. and painting the joints with 2 (two) coats of bituminous paint. (NS)

Supply & fixing of GI (Hot Dip) strips 25 mm x 6 mm thick for vertical rut on wall with GI saddles spaced not exceeding 1000 mm apart incl. mending good damages to building work, including welded lap joints, 'T' joints, etc and painting the joints with 2 (two) coats of bituminous paint. (NS)

Cutting cornices/ steps etc. including cutting recess in buildings etc. & supply & fixing 15 mm bore (ISI-Medium) Gbpipe protection as below and mending good damages to the building works:

i) Length unto 0.5 Mtr

ii) Length above 0.5 Mtr

Supply & Fixing of Testing Joints by 25 mm x 6 mm thick GI (Hot Dip) strip 125 mm long on wall after making suitable arrangement to establish a clearance of 50mm from wall for making junction connection with vertical conductor and conductor from earth electrode complete with S & F Gl bolts, nuts, check-nuts, spring washers etc. and provide a protective arrangement for that junction point by keeping it in a GI housing / enclosure (openable for maintenance procedure) , as required. ( NS)

Earthing with 65 mm dia GI pipe (TATA-Medium) 3.0 Mts. long with welded half circle bracket of Gl strip (65 x 8) mm. with two holes on extended portion of the strip of length min. 200 mm , and 1 No. 50 mm x 6 mm galvanized (Hot Dip) steel strip (4 Mts. long), 20 mm dia x 125 mm long galvanized bolt, double nuts, double washers including finishing both ends by making holes etc. and S & F 65 mm dia Gl 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. ( NS) — For LC.

Supply, Laying & Fixing of 50mm x 6mm galvanized (Hot Dip) steel strip in underground trench for interconnection between the Earth Points by proper welding and painting the lap & 'T1 joints with 2 (two) coats ol bituminous paint for making a Earth Grid. (NS)

THE BUSINESS ENGINEERS INDIA

Sohum Industrial Sales Corporation

Sunbird Power Pvt. Ltd.

MODERN TECHNO CORPORATION

UJJWAL MUKHERJEE

Swarnendu Sarkar

TAPAN KUMAR SARKAR