Providing Solar Power Panel and Solar Water Heater arrangements to the Government College BC (100 Girls) Hostel Building at Vedasandur in Dindigul District.

Supply, Installation, Testing, Commissioning and Handing over of 6 Kwp Grid connected roof top Solar PV System Scheme complete as detailed below. Design, Engineering, Manufacturing, Procurement, Supply of materials to project site, project management, installation of mechanical equipment, cabling & appurtenances, instrumentation and electrical system and other equipment, as detailed in this section.

Scope of the proposal a)Solar Modules (Multicrystalline-as per IEC specifications) b)Mounting Structure (Design to Coastal ambient condition) c) Inverter, distribution boards, junction boxes, cables d) Earthing for Solar modules and inverter e)Lightning Protection f) Installation and commissioning g)Project management h)Liasioning for approval from MNRE TECHNICAL SPECIFICATIONS 1. SOLAR PV MODULES AND ARRAY (i) Only indigenous modules shall be used in the Solar module shall be Crystalline (Mono/Poly) (or) Thin Film (or) Concentrator PV modules type. The peak power output of the PV Module

shall be min 100Wp under STC. Module Voc shall be minimum 21V. The total array capacity shall not be less than required capacity and this shall be operating at the required DC voltage. The power output of the PV module must be reported under standard test conditions (STC). I_V curve of the sample module should be submitted. (ii) The mechanical structure shall withstand gusts of wind / cyclonic wind up to 150km/hr from back side of the panel. (iii) The offered modules must conform to the latest edition of any of the following IEC/ equivalent BIS Standards for PV module design qualification and type approval: Crystalline Silicon Terrestrial PV Modules : IEC 61215/IS14286

Thin Film Terrestrial PV Module: IEC 61646/ Equivalent IS(Under Dev.) Concentrator PV Modules & Assemblies : IEC 62108 iv) In addition, the modules must conform to IEC 61730 1- requirements for construction &Part 2 - requirements for testing, for safety qualification or Equivalent IS (Under Dev.) (v) PV modules must also qualify Salt Mist Corrosion Testing as per IEC 61701/IS61701. vi) SPV modules shall be certified by NABL/IECQ accredited test centre. The bidder shall submit appropriate certificates. (vii) Protective devices against surges at the PV module shall be provided. Low voltage drop bypass diodes shall be provided.

(viii) Module Junction box (weather proof), where the module terminals shall be interconnected and output taken, shall be designed for long life out door operation in harsh environment as per the relevant BIS specifications and protected against surges. It should have a provision for "Opening" for replacing the cable, if required. (ix) PV modules used in solar power plants must be warranted for output wattage, which should not be less than 90% at the end of 10 years and 80% at the end of 25 years. (x) Each PV module must use a RF identification tag (RFID), which must contain the following information: a.Name of the manufacturer of PV Module b.Name of the manufacturer of Solar cells c.Unique Serial Number & Model No. of the module

d.Month and year of the manufacture (separately for Solar cells and module) e.Country of origin ( separately for solar cells and module) f..I-V curve for the module g.Peak Wattage of the module ,Im, Vm and FF for the module h. Date and year of obtaining IEC PV module qualification certificate i. Name of the test lab issuing IEC certificate j. Other relevant information on traceability of solar cells and module as per ISO 9000 series RFID shall be mandatorily placed inside the module laminate.

A distinctive serial number starting with NSM will be engraved on the frame of the module or screen printed on the tedlar sheet of the module. 1.1 ORIENTATION AND TILT OF PV MODULES Modules shall be North -South oriented at the Tilt Angle of 11° "13° 2. MOUNTING STRUCTURES The PV modules will be mounted on fixed metallic structures of adequate strength and appropriate design, which can withstand load of modules and high wind velocities up to 200 km per hour. The support structure used in the power plants will be hot dip Galvanized Iron (G.I). The "Mounting Structure" should have the following features:

The modules support structure shall be Mild Steel /hot dipped Galvanized (atleast 120 micron) Iron for holding the PV modules. The size of angle iron should not be less than 50x 50x 5mm. Each panel frame structure shall be so fabricated as to be grouted on roof on its legs. The legs of the structure shall be fixed and grouted in the PCC foundation column made with 1:2:4 cement concrete. The foundation shall support SPV modules at a given orientation, absorb and transfer the mechanical loads to the ground properly and shall withstand maximum wind speed of 200 km/hr All nuts and bolts should be made of good quality Stainless Steel. The structure should be designed to allow easy replacement of any module. The array structure shall be so designed that it will occupy minimum space without sacrificing the output from the SPV panels.

The minimum clearance of the lowest part of the module structure and the developed ground level shall not be less than 500 mm. The minimum clearance required from the parapet wall of the roof & in between row of panels is min 2 feet for cleaning the panels & servicing. The bidder shall specify installation details of the PV modules and the support structures with appropriate diagrams and drawings. The workshall be carried out as per the designs approved by the procuring entity.

3. JUNCTION BOXES The junction boxes shall be dust proof, vermin and waterproof and made of FRP / Thermo Plastic. The terminals shall be connected to copper bus bar arrangement of proper sizes. The junction boxes shall have suitable cable entry points fitted with cable glands of appropriate sizes for both incoming and outgoing cables. Suitable markings shall be provided on the bus bar for easy identification and cable ferrules shall be fitted at the cable termination points for identification. Each main junction box shall be fitted with appropriate rating blocking diode. The junction boxes shall be of reputed make.