Supply and Fixing Solar Power Plant work at Administrartive Block Engineering College Baran

SITC of Grid interactive Solar Photovoltaic Power Plant of required capacity having specifications as per A, B, C, D, E, F and G

A. Solar Photovoltaic module : MNRE approved and ALMM listed, SPV module of capacity 580 Wp or above, Anodized Aluminium Alloy Framed Topcon N- type Bifacial, manufactured in India, conforming to IS 14286/IEC 61215, IS/IEC 61730-Part-1, IS/IEC 61730-Part-2. , 2 mm Low Iron ARC semi-tempered glass, IP-68 PPL Junction box, 4.0 sq.mm cable with MC4 solar connector, conversion efficiency shall not be less than 21.0 % on STC, performance warranty for their output peak watt capacity > 90 % at the end of 10 years and > 80% at the end of 25 years.

B. Inverter / PCU : MPPT integrated, IGBT/MOSFET based and microprocessor/ DSP controlled Power Conditioning Unit (PCU) of AC nominal power output rating equal or greater than the required KWp of the module in IP-65 Enclosure, of 250-1500 V DC Input voltage range and 400 V AC, TPN, 50Hz +/- 2.5 Hz, Efficiency > 97%, THD < 3%, Overloading capacity > / = 10%, remote monitoring facility and PCU shall adjust the voltage and frequency level to suit the Grid Voltage Frequency.

C. Module mounting structure : MMS Steel shall be as per latest IS 2062:2011 and galvanization of the mounting structure shall be in compliance of latest IS 4759, All bolts, nuts, fasteners shall be hot dip galvanized, MMS shall be designed and installed to withstand the speed for the wind zone of the location with factor of safety >1.5, STAAD report of structure to be submitted

D. Array Junction Box / DCDB : IP 65 AJB / Enclosure mounted on MMS with Polyamide glands and MC4 Connectors and cable ferrules for identification. DC fuses with SPD type-II/MOV type surge arrester to be provided.

E. ACDB : IP 65 ACDB / Enclosure mounted on MMS with Polyamide glands and MC4 Connectors and cable ferrules for identification. MCB/MCCB with SPD type-II/MOV type surge arrester to be provided.

F. Earthing and Lightning protection: The entire space occupying the SPV array shall be suitably protected against Lightning by deploying required number of Lightning Arrestors (LAs). as per NFC17-102:2011/IEC 62305 standard and three no. of Earthing with suitable size earth conductor

G. Solar meter and Cable : Laying of array cables to PCU/ DCDB unit along with supplying & fixing of necessary GI raceways/MS conduit lugs and suitable size aluminium armoured cable from ACDB to Electrical panel (up to 50 Mtr.) Discom approved solar meter (Direct or CT operated) with suitable size IP65 enclosure or MIP Box with CT

SITC of Copper Bonded rod Earthing with high tensile strength (more than 600 N / sq.mm low carbon steel rod molecularly bonded with Copper thickness (250 microns) and confirming to UL 467 of following size and length and as per point mentioned (a), (b), [c), (d), (e) below :-

(a) Bore a hole of dia. 100 mm of required length, Place the rod in the centre of Hole

(b)Earth enhancing compound to ensure the moisture content and electrical conductivity, 25 kg for 3000 mm. The compound shall be tested form NABL accredited lab for low resistivity (less than 0.12 Ohm - meter) & high conductivity in nature with carbon as a major content in accordance with IEC 62561-7

© Connect the rod with copper Strip/Conductor/Wire with suitable clamp made from tinned copper and SS 304 Bolt

(d) Place Heavy duty weather proof poly-propylene earth inspection chamber as per requirement of IS/IEC 62305 and tested as per IEC 62561-5 with lockable Jam free lid suitable for safe working load 60 kN of round / square size 250 mm, and Height 250 to 300 mm.

(e) Testing of earth resistance for value of 5 ohms or less as required.

(f) Test certificates for confirming above standards from OEM is mandatory.

17.2 mm thick and 3 Mtr. Long

Supply, installation, testing & commissioning of following size & Material Lightning protection system accessories meeting requirement of IS/IEC 62305 and tested as per IEC 62561-2 / IS 18925 (Part 1-7) : 2025 as required.

Aluminium alloy Solid round conductor 8 mm dia.

Alluminium alloy Vertical Air termination 16/10 mm with base mounted on 3000 mm 40 mm GI pipe as mast

SS 304 Clamp to join Vertical Air terminal and 8/10 mm round conductor

SS 304 holder with Concrete base for 8/10 mm round conductor on Flat roof

SS 304 clamp connector for 8/10 mm round conductor on metal structure

Alluminium alloy expansion piece with connector for 8/10 mm round conductor

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