Tender For Provision Of Roof Top Solar Plant Totaling 250 Kw At Certain Building At Mhow Under Ge M Inf School Mhow; 1 Design, supply,installing, testing and commissioning of grid connected Solar PV plant of 50 KW AC side with 60 KWp DC side capacity to be installed on roof top including ballasted type module mounting structure, solar grade DC copper cable upto inverter, array junction boxes, MCconnectors,AC combination boxes, AC distribution board , junction / combiner boxes (including the module junction box, string junction box and main junction box equipped with appropriate functioning safety including fuses,SPD , grounding etc.) with necessary piping system, valves, foundation/staging work, as conditions for Solar Panel comprising of following sub components/sub systems and installation accessories complete including having following features complete all as specified and as directed in the technical specification of tender document and meeting the specifications as given subsequently in Annexures & as directed in scope of work and technical specification. 2 Note-(i) Items from 1(I) to 1(V) shall be considered as one item of Solar PV plant and cost of these items are deemed to be included in the above Item No.- 1.(ii) Contractor will do the site recce, shadow analysis and submit the following duly vetted by NISE/IIT/NIT/Govt Research Centre :(a) Shadow analysis report (b) Design /drawings of mould mounting structure(c) Single line diagram of strings etc.(d) IEC/ Certifications(e) Inverter Configuration(f) Layout of lightning protection/earthings (g) Grid interconnection 3 I (A) Solar PV Module(i) Solar modules not less than 500 watts each as per detail technical specifications mentioned as under: (ii) Modules should have efficiency of not less than 20% and the fill factor should be above 75% with cell and module both manufactured in INDIA. Make : Waaree / Vikram/Jackson/Emvee/Adani Solar/ Tata Power Solars Ltd/Havells/ Neosol/ Satvik Green / Rhaine Solar(DCR Modules) (iii) Voltage at Pmax - 41.98 V minimum for 144 Cells (iv) Current at Pmax - minimum 12.99A for 144 cells (v) Open circuit voltage - 49.97V minimum for 144 Cells(vi) Short cicuit current-minimum 13.74 Amps (vii) Maximum system voltage (Volts)- 1500 VDC (viii) Type of solar PV cell- Mono PERC creystalline silcon (ix) Suitability - For grid connected system (x) Module output -MC electronics plug (Male and female) (xi) Certification- The PV modules must conform to the latest edition of any of the following IEC/equivalent BIS Standards for PV module design qualification and type, approved as per IEC61215/BIS14286 (xii) In addition, the modules must conform to IEC 61730 Part 1(A1+A2+A11)-requirements for construction & Part 2(+A1)-requirements for testing, for safety qualification (xiii) The modules must conform to IEC 61701 , IEC 62716 ,62804 PID resistant (xiv) Latest STC report should be provided from any MNRE authorized test lab , report should not be 3 months old from the date of tender (xv) Application Class - A (xvi) Safety Class-A(xvii) Fire rating Class - C (xviii) All above electrical parameter measured - Standard test condition ofirradiance of 1000 W/m², AM 1.5 and cell temperature of 25° C(xix) Supply and installation of modules and installation is to be done as per the design and SLD attaches in the Technical specification (xx) Solar module shall be inspected and tested at a factory in India in the presence of an officer detailed by the Accepting Officer before despatch to the execution site. 4 (xxi) Material Warranty: (i) The contractor should warrant the Solar Module(s) to be free from the defects and / or failures specified below for a period not less than 10 (ten) years from the date of completion of work. He will obtain similar warranty from the original manufacturer and will submit the same to the GE (MIS) Mhow. However contractor will be responsible for the enforcement of warranty which shall include (a) Defects and / or failures due to manufacturing (b) Defects and / or failures due to quality of materials (c) Non conformity to specifications due to faulty manufacturing and / or inspection processes.(xxii) Performance Warranty: PV modules must be warranted by the contractor for output peak wattage, which should not be lessthan 90% at the end of 10 years and 80% at the end of 25 years. He will obtain similar warranty from the original manufacturer and will submit the same to the department. However contractor will be responsible for the enforcement of warranty. If Module(s) fail(s) to exhibit such power output in prescribed time span, thecontractor / manufacturer will be bound to either deliver additional PV Module(s) to replace themissing power output with no change in area of site used or replace the PV Module (s) without claim of no extra cost at the sole discretion of GE (MIS) Mhow. An amount as detailed in Particular Specifications here-in-after shall be held against as security deposit. 5 II) Module Mounting Structure(i) Supply and Installation and comissioningof Ballast type solar module mounting structure (ii) Material : Mild steel structure, Hot Dip Galvanised of 80 micron thick/Aluminium 6063-T6 as per ASTM, corrosion resistant. Galvanization shall conform to IS-2629, 4759 & 4736 as applicable.The fasteners shall be stainless steel to fix with the modules and with pre fabricated PCC Bricks. The contractor shall submit the design, length, section, detailed layout etc. of the structure. (iii) Minimum Module ground clearance should be 100 mm. (iv) The structure should be capable of withstanding a wind load of 180 km/hr after installation of pre fabricated PCC blocks of required size. (v) PCC blocksshould comply with IS 2185-1 (2005) (vi) The tilt angle is kept at 8-10 degree or as per site requirement , module orientation is landscape type. IS 875: Part 3 - 2015 for the design loads for Buildings and structures- Wind Loads (vii) The array structure shall be grounded properly using maintenance free earthing kit(viii)All fasteners are to be used of SS304. (ix)The mounting structures of solar PV modules, electrical works and overall workmanship of the grid solarpower plant up to inverter must be warranted for a period minimum 05 (Five) years.If all the items fails to conform to this warranty, the contractor/ manufacturer will repair or replace the items at their own expenses. 6 (III) Power Conditioning Unit (On grid Inverters) :-(i) Supply and Installation and comissioningof Solar Grid Connected inverter of capacity not less than 50 KW, 3 phase, 440 Volt, AC operated, 50 Hz,outoor typewith following features completeall as technical specis as specified and directed in the Anexure-2Make : Delta/ABB/SMA/Polycab/Huawei/Solis/ Sungrow (ii) The Power Grid should have the following salient features :- (iii) The PCU / inverters should be tested from the MNRE approved test centres / NABL / BIS / IEC accredited testing-calibration laboratories. (iv)The charge controller (if any) / MPPT units environmental testing should qualify IEC 60068-2 (1, 2, 14, 30) / Equivalent BIS standard. The junction boxes / enclosures should be IP 65 (for out door) / IP 54 (indoor) and as per IEC 529 specifications. (v) Built-in meter and data logger to monitor plant performance through external computer shall be provided.(vi) The power conditioning units / inverters should comply with applicable IEC / equivalent BIS standard for efficiency measurements and environmental tests as per standard codes IEC 61683 / IS 61683 and IEC 60068-2 (1,2,14,30) / Equivalent BIS Standard (vii) Economical requirements:- (a) Maximum efficiency >98%. (b) Opti trace MPP tracking for best MPP tracking efficiency. (c) Active temperature management with Opti cool. (d) Bluetooth communication. 7 (viii) Simple requirements:-(i) Three Phase Grid feed-in.(ii) Cable connection without tools.(iii) DC plug-in system.(A)50 KW INVERTER (1 No.):-(1) Input (DC) (i) Maximum input DC power - 66.5 KWp (ii) Maximum Input voltage- 1000V(iii) Operating voltage range - 200 V - 1000 V (v) Max. input current-40A/30A/30A(vi) No. of DC Inputs - 4/3/3 (vii)Start up Input Voltage - 350 Volts (2) Output (AC) (i) Max. Output power - 50 KW(ii) Nominal power -50 kW(iii) Maximum output Current- 80 A (iv) Nominal output Voltage-400V (v) Operating voltage range -310 Vac-480 Vac (vi) Power factor (Adjustable)-0.8 ind -0.8 Cap (vii) Output frequency-50 HZ ± 5 HZ (viii) Harmonic distortion, current < 3 %(3) Efficiency:-(i) Peak Efficiency- 98.50%, (ii) Euro Efficiency- 98.30 %,(4) Environmental limits :- (i)Degree of protection -IP65(ii) Operating temperature --20⁰ C to +50⁰ C (iii)Maximum altitudue (above sea level) - <4000m(iv) User interface and communications-LCD Display(v) Communication Port:RS 485 (vi) DC switch -DC relays (5) Protection & Monitoring:- (i) Ground fault monitoring (ii) Anti islanding (iii) Grid monitoring (iv) DC reverse polarity (v) AC and DC short circuit and over current(vi) Over current/ over voltage and over temperature 8 (IV) SOLAR DC CABLES(i) Supply laying and testing Solar DC copper cables multi stranded conductor, XLPE or XLPO insulted, IR/UV protected conforming to TUV 2 PfG 1169/08.2007 as per the technical specification mention in Annexure - 3 of size not less than 4 sqmm and maximum voltage drop shall be limited to 2%. The solar cable shall be laid for interconnecttion of PV modules, PV modules to DC DB andDC DB to inverter. Make :Polycab/ KEI/ Apar Cables/ Seichem/ Leoni Cables (ii) Shall meet IEC 60227/IS 694, IEC60502/IS 1554 standard Temp range: -10*C to +80*C Voltage rating 660/1000V (ii) Shall meet IEC 60227/IS 694, IEC60502/IS 1554 standard Temp range: -10*C to +80*C Voltage rating 660/1000V (iii) Solar cable shall be as perspecification TUV 2 PfG 1169/08.2007 (iv) Cable installation shall be as per IS 1255(v) The size of each type of DC cable selected shall be based on minimum voltage drop however; the maximum drop shall be limited to 2%. (vi) All cables and conduit pipes shall be clamped to the rooftop, walls and ceilings with thermoplastic clamps at intervals not exceeding 50 cm. The DC cable size shall be minimum of 4.0 mm2 copper,Solar cable shall be aesthetically tied to Module Mounting Stucture using UV resistant cable ties suitable for out door application. 9 (V) DC DISTRIBUTION BOARD(i) Supply andinstallation of DCDB for 50 KW plant as per the specification mention inAnnexure -4. (ii) The DC distribution box shall be of the thermos-Plastic with UL 94 for fire safety and SS fasteners IP65 DIN-rail maintaining type .(iii) DC surge protection devise (SPD), class 2 as per IEC 60364-5-53 (iv) The fuses IEC/ equivalent BIS standard should comply with applicable IEC/ equivalent BIS standard for general safety requirements for connectors, switches, circuit breakers, low-voltage switch gear as per standard codes IS/IEC 60947 (Part 1, 2 & 3), EN 50521 . (v) Number of DC SPD with specification : 1000 VDC , Up :1.9kv , Imax :40 KA , Ucpv : 585 V DC , Iscpv : 2000 A in DCDB should beEQUIVALENT TO No. of MPPTs in Inverter, number of I/P and O/P in DCDB should be equal to number of string inputs in the inverter (vi) Each string should have DC fuse with specification , I - 15 Amp , 1000 Vdc with DC fuse Holder as per specification 1000 vdc , 30 a ,100ka SCCR as per IEC 60269-2-1,60947-3 , IP 20 on its positive side Note : The number of inputs and outputs in DC DB should be equal to No. of string inputs in Inverter. 10 (VI) AC DISTRIBUTION BOARD :- Supply and installation and testing of ACDBs for 50 KWroof top solar power plant including following components:- (i) AC circuit breaker, 4-pole AC surge protection devise (SPD), class2 as per IEC 60364-5-53 ,ACSPD with specification for 3 phase and 1 neutral ,Uc :335V Ac , Up : 1.5 KV , In : 20 KA , Imax : 40 KA (ii) Each ACDB should be having MFM with Accuracy class 0.5 , panel meter compatible with RS 485 communication compatiblewith remote monitoringsystem . (iii) The panel shall be duly wired with suitable size of 1.1kV, PVC insulated cable and terminals shall be brought out for cable connections. 10% spare terminals subjected to minimum one of each rating shall be provided on each distribution switchgear. (iv) 240 V, 15 A, 3 pin industrial socket-outlet with ON/OFF switch shall be provided in each panel (v) The fuses (AC/DC) should comply with applicable IEC/ equivalent BIS standard for general safety requirements for connectors, switches, circuit breakers, low-voltage switch gear as per standard codes IS/IEC 60947(Part 1, 2 & 3), EN 50521 ,IEC 61439-1 IEC 61439 -2 (vi) IEC 62052-11 for Electricity metering equipment (A.C.) - General requirements, tests and testconditions - Part 11: Metering equipment. (a) ACDB 1 IN with 1 Out with SPD, MFM , Indiactors,Circuit Breaker ,15 Amp socket ,IP65( suitable for 50 KW AC output) (b) MCCB 4 Pole 125 Amp, 415 V, Breaking capacity -36 kA with extended rotary handle - 1 No. (vii) ESE type Lightning aresstor to protect the all the roof installed with solar moduleswith counter, mounting structure and Accessories. 5 mtr Height (As per NFC 17 102) suitable for 50 m protection radius all as specified and directed - 1 No. Make: True Power/ Erico/ JMV/ Remedies. Note : (i) Lightning protection should be provided as per IEC 6205 /IS 2309 standard.(ii) To reduce the over voltage to a safe level before it reaches the PV or other sub-system components as per NFC 17 - 102 (viii) Supply and installation of maintenace free chemical earthing using electrode of size 50mm bore x 3 m longcopper bonded and connected with 25X4mm GI strip complete with excavation, earth work, cast iron cover with back fill compound (Chemical/ Back fill compound gel for earthing enhancement -50Kg) complete as specified and directed. - 4 SetsMake : Erico/ Remedies Earthing System/True Power or equivalent Note: (i) IR Value should be less than 1.(ii) Copper stip of size 32mmX6mm including installation 7.5 m (Copper purity not less than 99%) 11 (a) The photovoltaic modules, BOS and other components of power plant requires adequateearthing for protecting against any serious faults as guided by IEC 60364. (b) Each set of chemical earthing to be provided for PV modules & MMS, PCU/Inverter & DCDB, ACDB and Lightning arrestor separately with GI strip of size of 25 x 4 mm. (c) The earthing system shall be designed, in accordance with IS: 3043-1987 and IEEE 80, IndianElectricity Rules, Codes of practice and regulations(IX) M&L for earth continuity conductor or main GI earthing strip 25x4 mm fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required galvanised complete all as specified and directed. (X) Supply, laying andtesting XLPE insulated, PVC sheathed single or multi-core flexible copper conductor cable of size 3.5 core 35 sqmm with UV-stabilized outer sheath ,650/100 volts conforming toIS 7098 part - 1/1988 from Inverter to ACDB. Notes : (i) All cable/wires are to be routed in a GI cabletray and suitably tagged and marked with proper manner by good quality ferule or by other means so that the cable easily identified. Solar cables shall be aesthetically tied to Module Mounting Structure using UV resistant cable-ties suitable for outdoor application. (ii) The total voltage drops on the cable segments from the solar grid inverter to the building distribution board shall not exceed 3.0%(XI) Supply, laying andtesting XLPE insulated, armoured heavy duty electric cable with aluminium conductor, 1100 volts grade, cross-sectional area 3.5 core 50 sq. mm (from 50 KW ACDB to LT panel) fixing with suitable clamps on floors/ walls/ roof top all as specified and directed. (XII) Supply and Installation of CPVC pipe as per IS 15778,ASTM D1784, ASTM D2846 specification and standards with water outlet at every 5 meter of Solar module cleaning system , CPVC pipe with 50 mm diawater piping laid through out the solar module array installation with 40 mm outlet fitted with long handle ball valve, one UNION at every 20 running meter to be fitted for easy service and installation complete all as specified and directed.Note : Cleaning of solar panels is required twice a week. 12 Design, supply, installing, testing and commissioning of grid connected Solar PV plant of 40 KW AC side with 48 KWp DC side capacityto be installed on roof topincluding ballasted type module mounting structure, solar grade DC copper cable upto inverter, array junction boxes, MCconnectors,AC combination boxes, AC distribution board , junction / combiner boxes (including the module junction box, string junction box and main junction box equipped with appropriate functioning safety including fuses,SPD , grounding etc.) with necessary piping system, valves, foundation/staging work, as conditions for Solar Panel comprising of following sub components/sub systems and installation accessories complete including having following features complete all as specified and as directed in the technical specification of tender document and meeting the specifications as given subsequently in Annexures & as directed in scope of work and technical specification. 13 Note- (i) Items from 2(I) to 2 (XII) shall be considered as one item of Solar PV plant and cost of these items are deemed to be included in the above Item No.- 2. (ii) Contractor will do the site recce, shadow analysis and submit the following duly vetted by NISE/IIT/NIT/Govt Research Centre :(a) Shadow analysis report(b) Design/drawing of module mounting structure(c) Single line diagrm of strings etc.(d) IEC/BIS Certifications(e) Inverter Configuration (f) Layout of lightning protection/earthings(g) Grid interconnection 14 (I) (A) Solar PV Module : (i) Solar modules not less than 500 watts each as per detail technical specifications mentioned as under:(ii) Modules should have efficiency of not less than 20% and the fill factor should be above 75% with cell and module both manufactured in INDIA. Make : Waaree / Vikram/Jackson/Emvee/Adani Solar/ Tata Power Solars Ltd/Havells/ Neosol/ Satvik Green / Rhaine Solar or equivalent (DCR Modules)(iii) Voltage at Pmax - 41.98 V minimum for144 Cells (iv) Current at Pmax - minimum 12.99A for 144 cells (v) Open circuit voltage - 49.97 V minimum for 144 Cells(vi) Short cicuit current-minimum 13.74 Amps (vii) Maximum system voltage (Volts)- 1500 VDC(viii) Type of solar PV cell- Mono PERC crystalline sillicon (ix) Suitability - For grid connected system(x) Module output -MC electronics plug (Male and female) (xi) Certification- The PV modules must conform to the latest edition of any of the following IEC/equivalent BIS Standards for PV module design qualification and type, approved as per IEC61215/BIS14286 (xii) In addition, the modules must conform to IEC 61730 Part 1(A1+A2+A11)-requirements for construction & Part 2(+A1)-requirements for testing, for safety qualification (xiii) The modules must conform to IEC 61701 , IEC 62716 ,62804 PID resistant(xiv) Latest STC report should be provided from any MNRE authorized test lab , report should not be 3 months old from the date of tender (xv) Application Class - A (xvi) Safety Class-A (xvii) Fire rating Class - C (xviii) All above electrical parameter measured - Standard test condition ofirradiance of 1000 W/m², AM 1.5 and cell temperature of 25° C(xix) Supply and installation of modules and installation is to be done as per the design and SLD attaches in the Technical specification (xx) Solar module shall be inspected and tested at a factory in India in the presence of an officer detailed by the Accepting Officer before despatch to the execution site 15 (xx) Solar module shall be inspected and tested at a factory in India in the presence of an officer detailed by the Accepting Officer before despatch to the execution site. (xxi) Material Warranty:(i) The contractor should warrant the Solar Module(s) to be free from the defects and / or failures specified below for a period not less than 10 (ten) years from the date of completion of work. He will obtain similar warranty from the original manufacturer and will submit the same to the GE (MIS) Mhow. However contractor will be responsible for the enforcement of warranty which shall include (a) Defects and / or failures due to manufacturing (b) Defects and / or failures due to quality of materials (c) Non conformity to specifications due to faulty manufacturing and / or inspection processes. (xxii) Performance Warranty: PV modules must be warranted by the contractor for output peak wattage, which should not be lessthan 90% at the end of 10 years and 80% at the end of 25 years. He will obtain similar warranty from the original manufacturer and will submit the same to the department. However contractor will be responsible for the enforcement of warranty. If Module(s) fail(s) to exhibit such power output in prescribed time span, thecontractor / manufacturer will be bound to either deliver additional PV Module(s) to replace themissing power output with no change in area of site used or replace the PV Module(s) without claim of no extra cost at the sole discretion of GE (MIS) Mhow. An amount as detailed in Particular Specifications here-in-after shall be held against as security deposit. 16 II) Module Mounting Structure(i) Supply and Installation and comissioningof Ballast type solar module mounting structure Make : Jackson/Ganges International (ii) Material : Mild steel structure, Hot Dip Galvanised of 80 micron thick/ Aluminium 6063-T6 as per ASTM, corrosion resistant. Galvanization shall conform to IS-2629, 4759 & 4736 as applicable.The fasteners shall be stainless steel to fix with the modules and with pre fabricated PCC Bricks. The contractor shall submit the design, length, section, detailed layout etc. of the structure.(iii) Minimum Module ground clearance should be 300 mm.(iv) The structure should be capable of withstanding a wind load of 180 km/hr after installation of pre fabricated PCC blocks of required size.(v) PCC blocksshould comply with IS 2185-1 (2005).(vi) The tilt angle is kept at 12 degree , module orientation is landscape type. IS 875: Part 3 - 2015 for the design loads for Buildings and structures- Wind Loads.(vii) The array structure shall be grounded properly using maintenance free earthing kit.(viii) All fasteners are to be used of SS304. (ix) The mounting structures of solar PV modules, electrical works and overall workmanship of the grid solarpower plant up to inverter must be warranted for a period minimum 05 (Five) years as detailed in Particular Specifications.If all the items fails to conform to this warranty, the contractor/ manufacturer will repair or replace the items at their own expenses. 17 III) Power Conditioning Unit (On grid Inverters):- (i) Supply and Installation and comissioningof Solar Grid Connected inverter of capacity not less than 40 KW, 3 phase, 440 Volt, AC operated, 50 Hz,outoor typewith following features completeall as technical specis as specified and directed in the Anexure-2Make : Delta/ABB/SMA/Polycab/Huawei/Havells/ Solis/ Sungrow or equivalent. (ii) The Power Grid should have the following salient features:- (iii) The PCU / inverters should be tested from the MNRE approved test centres / NABL / BIS / IEC accredited testing-calibration laboratories.(iv)The charge controller (if any) / MPPT units environmental testing should qualify IEC 60068-2 (1, 2, 14, 30) / Equivalent BIS standard. The junction boxes / enclosures should be IP 65 (for out door) / IP 54 (indoor) and as per IEC 529 specifications.(v) Built-in meter and data logger to monitor plant performance through external computer shall be provided.(vi) The power conditioning units / inverters should comply with applicable IEC / equivalent BIS standard for efficiency measurements and environmental tests as per standard codes IEC 61683 / IS 61683 and IEC 60068-2 (1,2,14,30) / Equivalent BIS Standard. (vii) Economical requirements:- (i) Maximum efficiency >98%. (ii) Opti trace MPP tracking for best MPP tracking efficiency.(iii) Active temperature management with Opti cool. (iv) Bluetooth communication. (viii) Simple requirements:-(i) Three Phase Grid feed-in.(ii) Cable connection without tools.(iii) DC plug-in system.(A)40 KW INVERTER (1 No.):-(1) Input (DC) (i) Maximum input DC power - 60 KWp (ii) Maximum Input voltage- 1100V(iii) Operating voltage range - 180 V - 1000 V (v) Max. input current-40A/40A/40A(vi) No. of DC Inputs - 8 (vii)Start up Input Voltage - 200 Volts (2) Output (AC) (i) Max. Output power - 40 KW(ii) Nominal power -40 kW(iii) Maximum output Current- 66 A (iv) Nominal output Voltage-400V (v) Operating voltage range -310 Vac-480 Vac (vi) Power factor (Adjustable)-0.8 ind -0.8 Cap (vii) Output frequency-50 HZ ± 5 HZ (viii) Harmonic distortion, current < 3 %(3) Efficiency:-(i) Peak Efficiency- 98.80%, (ii) Euro Efficiency- 98.20 %, 18 IV) SOLAR DC CABLES (i) Supply laying and testing Solar DC copper cables multi stranded conductor, XLPE or XLPO insulted, IR/UV protected conforming to TUV 2 PfG 1169/08.2007 as per the technical specification mention in Annexure - 3 of size not less than 4 sqmm and maximum voltage drop shall be limited to 2%. The solar cable shall be laid for interconnecttion of PV modules, PV modules to DC DB andDC DB to inverter. Make :Polycab/ KEI/ Apar Cables/ Seichem/ Leoni Cables. (ii) Shall meet IEC 60227/IS 694, IEC60502/IS 1554 standard Temp range: -10*C to +80*C Voltage rating 660/1000V. (iii) Solar cable shall be as perspecification TUV 2 PfG 1169/08.2007.(iv) Cable installation shall be as per IS 1255. (v) The size of each type of DC cable selected shall be based on minimum voltage drop however; the maximum drop shall be limited to 2%. (vi) All cables and conduit pipes shall be clamped to the rooftop, walls and ceilings with thermoplastic clamps at intervals not exceeding 50 cm. The DC cable size shall be minimum of 4.0 mm2 copper,Solar cable shall be aesthetically tied to Module Mounting Stucture using UV resistant cable ties suitable for out door application.(V) DC DISTRIBUTION BOARD (i) Supply andinstallation of DCDB for 40 KW plant as per the specifications mentioned below: (ii) The DC distribution box shall be of the thermos-Plastic with UL 94 for fire safety and SS fasteners IP65 DIN-rail maintaining type . (iii) DC surge protection devise (SPD), class 2 as per IEC 60364-5-53. (iv) The fuses IEC/ equivalent BIS standard should comply with applicable IEC/ equivalent BIS standard for general safety requirements for connectors, switches, circuit breakers, low-voltage switch gear as per standard codes IS/IEC 60947 (Part 1, 2 & 3), EN 50521 . (v) Number of DC SPD with specification : 1000 VDC , Up :1.9kv , Imax :40 KA , Ucpv : 585 V DC , Iscpv : 2000 A in DCDB should beEQUIVALENT TO No. of MPPTs in Inverter, number of I/P and O/P in DCDB should be equal to number of string inputs in the inverter (vi) Each string should have DC fuse with specification , I - 15 Amp , 1000 Vdc with DC fuse Holder as per specification 1000 vdc , 30 a ,100ka SCCR as per IEC 60269-2-1,60947-3 , IP 20 on its positive sideNote : The number of inputs and outputs in DC DB should be equal to No. of string inputs in Inverter. 19 VI) AC DISTRIBUTION BOARDSupply and installation and testing of ACDBs for 30 KWroof top solar power plant including following components: (i) AC circuit breaker, 4-pole AC surge protection devise (SPD), class2 as per IEC 60364-5-53 ,ACSPD with specification for 3 phase and 1 neutral ,Uc :335V Ac , Up : 1.5 KV , In : 20 KA , Imax : 40 KA (ii) Each ACDB should be having MFM with Accuracy class 0.5 , panel meter compatible with RS 485 communication compatiblewith remote monitoringsystem .(iii) The panel shall be duly wired with suitable size of 1.1kV, PVC insulated cable and terminals shall be brought out for cable connections. 10% spare terminals subjected to minimum one of each rating shall be provided on each distribution switchgear. (iv) 240 V, 15 A, 3 pin industrial socket-outlet with ON/OFF switch shall be provided in each panel (v) The fuses (AC/DC) should comply with applicable IEC/ equivalent BIS standard for general safety requirements for connectors, switches, circuit breakers, low-voltage switch gear as per standard codes IS/IEC 60947(Part 1, 2 & 3), EN 50521 ,IEC 61439-1 IEC 61439 -2(vi) IEC 62052-11 for Electricity metering equipment (A.C.) - General requirements, tests and testconditions - Part 11: Metering equipment. (a) ACDB 1 IN with 1 OUTwith SPD, MFM , Indiactors,Circuit Breaker ,15 Amp socket ,IP65( suitable for 40 KW AC output) (b) MCCB 4 Pole 100 Amp, 415 V, Breaking capacity -36 kA with extended rotary handle - 1 No. (VII) ESE type Lightning aresstor to protect the all the roof installed with solar moduleswith counter, mounting structure and Accessories. 5 mtr Height (As per NFC 17 102) suitable for 50 m protection radius all as specified and directed - 1 No.Make: True Power/ Erico/ JMV/ Remedies. Note : (i) Lightning protection should be provided as per IEC 6205 /IS 2309 standard. (ii) To reduce the over voltage to a safe level before it reaches the PV or other sub-system components as per NFC 17 - 102 20 (VIII) Supply and installation of maintenace free chemical earthing using electrode of size 50mm bore x 3 m longcopper bonded and connected with 25X4mm GI strip complete with excavation, earth work, cast iron cover with back fill compound (Chemical/ Back fill compound gel for earthing enhancement -50Kg) complete as specified and directed. - 4SetsMake : Erico/ Remedies Earthing System/True Power or equivalent Note: (i) IR Value should be less than 1.(ii) Copper stip of size 32mmX6mm including installation 7.5 m (Copper purity not less than 99%) .The photovoltaic modules, BOS and other components of power plant requires adequateearthing for protecting against any serious faults as guided by IEC 60364. (ii) Each set of chemical earthing to be provided for PV modules & MMS, PCU/Inverter & DCDB, ACDB and Lightning arrestor separately with GI strip of size of 25 x 4 mm.”.The earthing system shall be designed, in accordance with IS: 3043-1987 and IEEE 80, IndianElectricity Rules, Codes of practice and regulations(IX) M&L for earth continuity conductor or main GI earthing strip 25x4 mm fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required galvanised complete all as specified and directed. (X) Supply, laying andtesting XLPE insulated, PVC sheathed single or multi-core flexible copper conductor cable of size 4 core 25 sqmm (from inverter to ACDB) with UV-stabilized outer sheath ,650/100 volts conforming toIS 7098 part - 1/1988 of following sizes : Notes : (i) All cable/wires are to be routed in a GI cabletray and suitably tagged and marked with proper manner by good quality ferule or by other means so that the cable easily identified. Solar cables shall be aesthetically tied to Module Mounting Structure using UV resistant cable-ties suitable for outdoor application.(ii) The total voltage drops on the cable segments from the solar grid inverter to the building distribution board shall not exceed 3.0%(XI) Supply, laying andtesting XLPE insulated, armoured heavy duty electric cable with aluminium conductor, 1100 volts grade, cross-sectional area 3.5 core 50 sq. mm (from 40 KW ACDB to LT panel) fixing with suitable clamps on floors/ walls/ roof top all as specified and directed. (XII) Supply and Installation of CPVC pipe as per IS 15778,ASTM D1784, ASTM D2846 specification and standards with water outlet at every 5 meter of Solar module cleaning system , CPVC pipe with 50 mm diawater piping laid through out the solar module array installation with 40 mm outlet fitted with long handle ball valve, one UNION at every 20 running meter to be fitted for easy service and installation complete all as specified and directed.Note : Cleaning of solar panels is required twice a week. 21 Design,supply,installing, testing and commissioning of grid connected Solar PV plant of 30 KW AC side with 36 KWp DC side capacityto be installed on roof topincluding ballasted type module mounting structure, solar grade DC copper cable upto inverter, array junction boxes, MCconnectors,AC combination boxes, AC distribution board , junction / combiner boxes (including the module junction box, string junction box and main junction box equipped with appropriate functioning safety including fuses,SPD , grounding etc.) with necessary foundation/staging work, as conditions for Solar Panel comprising of following sub components/sub systems and installation accessories complete including having following features complete all as specified and as directed in scope of work and Particular specification. 22 Note- (i) Items from 3(I) to 3(XII) shall be considered as one item of Solar PV plant and cost of these items are deemed to be included in the above Item No.- 3. (ii) Contractor will do the site recce, shadow analysis and submit the following duly vetted by NISE/IIT/NIT/Govt Research Centre :(a) Shadow analysis report(b) Design/drawing of module mounting structure(c) Single line diagrm of strings etc.(d) IEC/BIS Certifications(e) Inverter Configuration (f) Layout of lightning protection/earthings(g) Grid interconnection 23 (A) Solar PV Module : (i) Solar modules not less than 500 watts each as per detail technical specifications mentioned as under:(ii) Modules should have efficiency of not less than 20% and the fill factor should be above 75% with cell and module both manufactured in INDIA. Make : Waaree / Vikram/Jackson/Emvee/Adani Solar/ Tata Power Solars Ltd/Havells/ Neosol/ Satvik Green / Rhaine Solar or equivalent (DCR Modules)(iii) Voltage at Pmax - 41.98 V minimum for144 Cells (iv) Current at Pmax - minimum 12.99A for 144 cells (v) Open circuit voltage - 49.97 V minimum for 144 Cells(vi)Short cicuit current-minimum 13.74 Amps (vii) Maximum system voltage (Volts)- 1500 VDC (viii) Type of solar PV cell- Mono PERC crystalline sillicon (ix) Suitability - For grid connected system(x) Module output -MC electronics plug (Male and female) (xi) Certification- The PV modules must conform to the latest edition of any of the following IEC/equivalent BIS Standards for PV module design qualification and type, approved as per IEC61215/BIS14286 (xii) In addition, the modules must conform to IEC 61730 Part 1(A1+A2+A11)-requirements for construction & Part 2(+A1)-requirements for testing, for safety qualification (xiii) The modules must conform to IEC 61701 , IEC 62716 ,62804 PID resistant(xiv) Latest STC report should be provided from any MNRE authorized test lab , report should not be 3 months old from the date of tender (xv) Application Class - A (xvi) Safety Class-A (xvii) Fire rating Class - C (xviii) All above electrical parameter measured - Standard test condition ofirradiance of 1000 W/m², AM 1.5 and cell temperature of 25° C(xix) Supply and installation of modules and installation is to be done as per the design and SLD attaches in the Technical specification (xx) Solar module shall be inspected and tested at a factory in India in the presence of an officer detailed by the Accepting Officer before despatch to the execution site. 24 (xxi) Material Warranty:(i) The contractor should warrant the Solar Module(s) to be free from the defects and / or failures specified below for a period not less than 10 (ten) years from the date of completion of work. He will obtain similar warranty from the original manufacturer and will submit the same to the GE (MIS) Mhow. However contractor will be responsible for the enforcement of warranty which shall include (a) Defects and / or failures due to manufacturing (b) Defects and / or failures due to quality of materials (c) Non conformity to specifications due to faulty manufacturing and / or inspection processes.(xxii) Performance Warranty: PV modules must be warranted by the contractor for output peak wattage, which should not be lessthan 90% at the end of 10 years and 80% at the end of 25 years. He will obtain similar warranty from the original manufacturer and will submit the same to the department. However contractor will be responsible for the enforcement of warranty. If Module(s) fail(s) to exhibit such power output in prescribed time span, thecontractor / manufacturer will be bound to either deliver additional PV Module(s) to replace themissing power output with no change in area of site used or replace the PV Module(s) without claim of no extra cost at the sole discretion of GE (MIS) Mhow. An amount as detailed in Particular Specifications here-in-after shall be held against as security deposit. 25 (II) Module Mounting Structure (i) Supply and Installation and comissioningof Ballast type solar module mounting structure Make : Jackson/Ganges International (ii) Material : Mild steel structure, Hot Dip Galvanised of 80 micron thick/ Aluminium 6063-T6 as per ASTM, corrosion resistant. Galvanization shall conform to IS-2629, 4759 & 4736 as applicable.The fasteners shall be stainless steel to fix with the modules and with pre fabricated PCC Bricks. The contractor shall submit the design, length, section, detailed layout etc. of the structure. (iii) Minimum Module ground clearance should be 300 mm.(iv) The structure should be capable of withstanding a wind load of 180 km/hr after installation of pre fabricated PCC blocks of required size. (v) PCC blocksshould comply with IS 2185-1 (2005)(vi) The tilt angle is kept at 12 degree , module orientation is landscape type. IS 875: Part 3 - 2015 for the design loads for Buildings and structures- Wind Loads (vii) The array structure shall be grounded properly using maintenance free earthing kit (viii) All fasteners are to be used of SS304. (ix) The mounting structures of solar PV modules, electrical works and overall workmanship of the grid solarpower plant up to inverter must be warranted for a period minimum 05 (Five) years as detailed in Particular Specifications.If all the items fails to conform to this warranty, the contractor/ manufacturer will repair or replace the items at their own expenses. 26 (III) Power Conditioning Unit (On grid Inverters) :-(i) Supply and Installation and comissioningof Solar Grid Connected inverter of capacity not less than 30 KW, 3 phase, 440 Volt, AC operated, 50 Hz,outoor typewith following features completeall as technical specis as specified and directed in the Anexure-2Make : Delta/ABB/SMA/Polycab/Huawei/Havells/ Solis/ Sungrow or equivalent (ii)The Power Grid should have the following salient features:-(iii) The PCU / inverters should be tested from the MNRE approved test centres / NABL / BIS / IEC accredited testing-calibration laboratories. (iv)The charge controller (if any) / MPPT units environmental testing should qualify IEC 60068-2 (1, 2, 14, 30) / Equivalent BIS standard. The junction boxes / enclosures should be IP 65 (for out door) / IP 54 (indoor) and as per IEC 529 specifications. (v) Built-in meter and data logger to monitor plant performance through external computer shall be provided.(vi) The power conditioning units / inverters should comply with applicable IEC / equivalent BIS standard for efficiency measurements and environmental tests as per standard codes IEC 61683 / IS 61683 and IEC 60068-2 (1,2,14,30) / Equivalent BIS Standard 27 (vii) Economical requirements:- (i) Maximum efficiency >98%.(ii) Opti trace MPP tracking for best MPP tracking efficiency. (iii) Active temperature management with Opti cool. (iv) Bluetooth communication. (viii) Simple requirements:-(i) Three Phase Grid feed-in.(ii) Cable connection without tools.(iii) DC plug-in system.(A)30 KW INVERTER (1 No.):-(1) Input (DC) (i) Maximum input DC power - 45 KWp (ii) Maximum Input voltage- 1100V(iii) Operating voltage range - 180 V - 1000 V (v) Max. input current-40A/40A/40A(vi) No. of DC Inputs - 6 (vii)Start up Input Voltage - 200 Volts (2) Output (AC) (i) Max. Output power – 34 VA(ii) Nominal power -30 KW(iii) Maximum output Current- 51.5 A (iv) Nominal output Voltage-400V (v) Operating voltage range -310 Vac-480 Vac (vi) Power factor (Adjustable)-0.8 ind -0.8 Cap (vii) Output frequency-50 HZ ± 5 HZ (viii) Harmonic distortion, current < 3 %(3) Efficiency:-(i) Peak Efficiency- 98.60%, (ii) Euro Efficiency- 98.20 %, 28 (IV) SOLAR DC CABLES(i) Supply laying and testing Solar DC copper cables multi stranded conductor, XLPE or XLPO insulted, IR/UV protected conforming to TUV 2 PfG 1169/08.2007 as per the technical specification mention in Annexure - 3 of size not less than 4 sqmm and maximum voltage drop shall be limited to 2%. The solar cable shall be laid for interconnecttion of PV modules, PV modules to DC DB andDC DB to inverter. Make :Polycab/ KEI/ Apar Cables/ Seichem/ Leoni Cables (ii) Shall meet IEC 60227/IS 694, IEC60502/IS 1554 standard Temp range: -10*C to +80*C Voltage rating 660/1000V (iii) Solar cable shall be as perspecification TUV 2 PfG 1169/08.2007 (iv) Cable installation shall be as per IS 1255 (v) The size of each type of DC cable selected shall be based on minimum voltage drop however; the maximum drop shall be limited to 2%.(vi) All cables and conduit pipes shall be clamped to the rooftop, walls and ceilings with thermoplastic clamps at intervals not exceeding 50 cm. The DC cable size shall be minimum of 4.0 mm2 copper,Solar cable shall be aesthetically tied to Module Mounting Stucture using UV resistant cable ties suitable for out door application. 29 (V) DC DISTRIBUTION BOARD(i) Supply andinstallation of DCDB for 30 KW plant as per the specification mention inAnnexure -4. (ii) The DC distribution box shall be of the thermos-Plastic with UL 94 for fire safety and SS fasteners IP65 DIN-rail maintaining type .(iii) DC surge protection devise (SPD), class 2 as per IEC 60364-5-53 (iv) The fuses IEC/ equivalent BIS standard should comply with applicable IEC/ equivalent BIS standard for general safety requirements for connectors, switches, circuit breakers, low-voltage switch gear as per standard codes IS/IEC 60947 (Part 1, 2 & 3), EN 50521 . (v) Number of DC SPD with specification : 1000 VDC , Up :1.9kv , Imax :40 KA , Ucpv : 585 V DC , Iscpv : 2000 A in DCDB should beEQUIVALENT TO No. of MPPTs in Inverter, number of I/P and O/P in DCDB should be equal to number of string inputs in the inverter (vi) Each string should have DC fuse with specification , I - 15 Amp , 1000 Vdc with DC fuse Holder as per specification 1000 vdc , 30 a ,100ka SCCR as per IEC 60269-2-1,60947-3 , IP 20 on its positive side . Note : The number of inputs and outputs in DC DB should be equal to No. of string inputs in Inverter. 30 (VI) AC DISTRIBUTION BOARD :- Supply and installation and testing of ACDBs for 30 KWroof top solar power plant including following components:- (i) AC circuit breaker, 4-pole AC surge protection devise (SPD), class2 as per IEC 60364-5-53 ,ACSPD with specification for 3 phase and 1 neutral ,Uc :335V Ac , Up : 1.5 KV , In : 20 KA , Imax : 40 KA (ii) Each ACDB should be having MFM with Accuracy class 0.5 , panel meter compatible with RS 485 communication compatiblewith remote monitoringsystem . (iii) The panel shall be duly wired with suitable size of 1.1kV, PVC insulated cable and terminals shall be brought out for cable connections. 10% spare terminals subjected to minimum one of each rating shall be provided on each distribution switchgear. (iv) 240 V, 15 A, 3 pin industrial socket-outlet with ON/OFF switch shall be provided in each panel (v)The fuses (AC/DC) should comply with applicable IEC/ equivalent BIS standard for general safety requirements for connectors, switches, circuit breakers, low-voltage switch gear as per standard codes IS/IEC 60947(Part 1, 2 & 3), EN 50521 ,IEC 61439-1 IEC 61439 -2 (vi)IEC 62052-11 for Electricity metering equipment (A.C.) - General requirements, tests and testconditions - Part 11: Metering equipment. (a) ACDB 1 IN with 1 OUT with SPD, MFM , Indiactors,Circuit Breaker ,15 Amp socket ,IP65(suitable for 30 KW AC output) (b) MCCB 4 Pole 63 Amp, 415 V, Breaking capacity -36 kA with extended rotary handle - 1 No. 31 (VII) ESE type Lightning aresstor to protect the all the roof installed with solar moduleswith counter, mounting structure and Accessories. 5 mtr Height (As per NFC 17 102) suitable for 50 m protection radius all as specified and directed - 1 No.Make: True Power/ Erico/ JMV/ Remedies.Note : (i) Lightning protection should be provided as per IEC 6205 /IS 2309 standard.(ii) To reduce the over voltage to a safe level before it reaches the PV or other sub-system components as per NFC 17 - 102 32 (VIII) Supply and installation of maintenace free chemical earthing using electrode of size 50mm bore x 3 m longcopper bonded and connected with 25X4mm GI strip complete with excavation, earth work, cast iron cover with back fill compound (Chemical/ Back fill compound gel for earthing enhancement -50Kg) complete as specified and directed. - 3 SetsMake : Erico/ Remedies Earthing System/True Power or equivalent Note: (i) IR Value should be less than 1.(ii) Copper stip of size 32mmX6mm including installation 7.5 m (Copper purity not less than 99%) (a)The photovoltaic modules, BOS and other components of power plant requires adequateearthing for protecting against any serious faults as guided by IEC 60364. (b) Each set of chemical earthing to be provided for PV modules & MMS, PCU/Inverter & DCDB, ACDB and Lightning arrestor separately with GI strip of size of 25 x 4 mm. (c) The earthing system shall be designed, in accordance with IS: 3043-1987 and IEEE 80, IndianElectricity Rules, Codes of practice and regulations 33 (IX) M&L for earth continuity conductor or main GI earthing strip 25x4 mm fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required galvanised complete all as specified and directed. 34 (X) Supply, laying andtesting XLPE insulated, PVC sheathed single or multi-core flexible copper conductor cable of size 4 core 16 sqmm (From inverter to ACDB) with UV-stabilized outer sheath ,650/100 volts conforming toIS 7098 part - 1/1988 of following sizes : Notes : (i) All cable/wires are to be routed in a GI cabletray and suitably tagged and marked with proper manner by good quality ferule or by other means so that the cable easily identified. Solar cables shall be aesthetically tied to Module Mounting Structure using UV resistant cable-ties suitable for outdoor application.(ii) The total voltage drops on the cable segments from the solar grid inverter to the building distribution board shall not exceed 3.0% 35 (XI) Supply, laying andtesting XLPE insulated, armoured heavy duty electric cable with aluminium conductor, 1100 volts grade, cross-sectional area 3.5 core 50 sq. mm (from 50 KW ACDB to LT panel) fixing with suitable clamps on floors/ walls/ roof top all as specified and directed.(XII) Supply and Installation of CPVC pipe as per IS 15778,ASTM D1784, ASTM D2846 specification and standards with water outlet at every 5 meter of Solar module cleaning system , CPVC pipe with 50 mm diawater piping laid through out the solar module array installation with 40 mm outlet fitted with long handle ball valve, one UNION at every 20 running meter to be fitted for easy service and installation complete all as specified and directed.Note : Cleaning of solar panels is required twice a week. 36 Note for Item No. 1,2 & 3:-1.Monthly visit by technician for regular maintenance inclusive ofincluding cleaning of solar panels, periodical checks and maintenance as recommended by OEM including ensuring serviceability of the plant i.e. solar panels, inverters, DCDB, ACDB etc. including submittingmonthly/quarterly power generation reports to the department and other maintenance schedules as per OEM of monthly, quarterly, half-yearly and yearly basis and to monitor the system efficacy and attending any complaint on call within 48 hours is deemed to be included in the cost of Item No.-1 for which scope is as under:2. Repair/replacement of solar modules, mechanical structure of solar module, electrical work and overall workmanship of grid solar power plant upto inverter is already covered under material and performance warranty3. The contractor shall be responsible for approval from MPEB for electrical parameters after connection with grid.4. The thermal imaging of PV Panelsshould be taken once a year for checking its health including hot spots.5. The shut down duration of Inverter should be monitored and recorded and analyzed.6. Maintaining the visit and event logbook.A note of any event that has occurred due to which the Solar system has underperformed or had stopped shall be made in the log book.The corrective action taken and equipment or parts replaced as authorised by MES shall also be noted in the event book. (i) Solar Panel MaintenanceThe Solar array (a number of solar panels connected together) is often thought to be maintenance free.However, occasional maintenance i.e once in fortnight and inspection of the solar array must be performed to ensure the optimal use of the solar panels.This can be done by keeping the surface (glass) area of the module clean from any excess dirt. Each panel shallbe washed, cleaned with water and sponge properly fortnightly.If the module has thick dirt or grime and bird droppings, which are harder to remove with plain water and sponge then washing soap / other chemical as per OEM guidelines shall be used. 37 (ii) Notes 1. Metal brush will not be used to clean solar panel surface.2. A visual inspection of the modules will also be done during cleaningto check for defects in the modules such as cracks, chips, de-lamination, fogged glazing, water leaks and discoloration.If any obvious defects are found,the location shall be noted in the system logbook, so that they can be monitored in the future in case further deterioration affects the modules output.3. The condition of the array mounting frame will also be checked by supervisor cum tradesman. Items to observe shall include the array mounting bolts (e.g.bolt rusting) andensure that the frame and modules are firmly secured.The junction boxes shall also be checked to ensure that the wires are not chewed by rodents or insects.(iii) Wiring and connectionsWiring installations shall be checked for any cracks, breaks or deterioration in the insulation/conduits.Inspect panel boxes to ensure that they have not become a home for rodents and insects.Also inspect connections for any corrosion and/or burning.Switches should not spark when turned on or off.The following sections of conduit and wiring should be checked for any signs of damage:-Solar panels to the DCDB, DCDB to the Inverter, Inverter to the ACDB, If any damage is found, the same shall be repaired/replaced .All ground wires shall be checked to ensure that they are not broken.Note : (i) Contractor shall submit the shadow analysis of roofs considered, design/ drawings of roof top solar including all components to the accepting officer duly vetted by NISE/IIT/NIT.(ii)Contractor shall submit the technical details, IEC certificates of PV modules, inverter, DCDB/ACDB.(iii)Design structural drawings of module mounting structure alongwith design calculations shall be submited by the contractor duly vetted from NIT / IIT / Govt Research Institute. The cost of same shall be deemed to be included in this item
