Military Engineer Services Tender

Sl Item 1 Contd…. (l) RFID reader is to be provided by contractor (m) Both PV cells and SPV modules shall be make in India. (n) The minimum Net Annual Generation shall be 1,460 units per Kilo Watts.

(B) Junction Boxes : Supply and fix jucntion boxes of suitable Nos (as per design)/ OEM recommendations inputs and suitably rated output having separate DC fuses for both (+) & (-) on input and isolator on output terminal for each string. Each junction box must have a spare input terminal. The junction boxes shall be dust and vermin proof and water proof made of FRP/ Thermo Plast with IP 65 protection in compliance with IEC 62208 and shall be UV resistant, fire retardant. It shall have surge protection and maintenance free earthing as per relecant standard. The junction box shall have suitable arrangement of the following :- (a) The strings are required to be connected to the copper bus bar through individual fuses. (b) Provide arrangement for disconnection (DC dis-connection switch) for each SJB/ SCB. (c) Provide a test point for each sub group for quick fault location and to provide group array isolation. (d) Each array box shall be of relevant IEC standard. (e) Each array junction box shall have suitable bypass & reverse blocking diodes for maximum DC blocking voltage of 1000V with suitable arrangement of its connection. Reverse blocking and bypass diodes shall work for extreme temperatures and shall have efficiency of 99.98% confirmed by appropriate IEC standard. Make : As per OEM

Sl Item 1 Contd… (C) DC Cables : Suitable size of XLPE insulated tinned Copper cable (min 6 sqmm of size) of Solar grade, 1100 Volts and UV resistant for outdoor installations confirming to IEC : 60227/15694 & 60502/ IS : 1554 (Pt I&II) and shall be as under :- (a) All cables and connectors for use of installation shall be of Solar grade which can withstand harsh enviromnetal conditions including high temperature, UV radiations, rain, dirt, burial and attack by moss and microbes for 25 years and voltage as per latest IEC/ IS. (b) All the cables / wires shall be provided with UV resistant printed ferrules for DC side. (c) The size of the cable shall be such that avearage voltage drop at full power from PV module to inverter shall be less than 1.5%. (d) Cable batch No, drum No, IS code and size and make shall be metioned on every one meter or as per OEM practice. (e) The wiring of the module interconnection shall be in UPVC/HDPE pipe of suitable size. (f) The cost of interconnecting DC Copper cable, MS cable trays, and earth work for trenches/ MS cable trays suitable to accommodate Solar grade cables from SPV module upto inverters are included in the item.

Sl Item 1 Contd…. (D) Module Mounting Structure (MMS) : Design, procure, fixing, support structure made of hot dipped galvanised with min 85 micron thickness including necessary PCC foundation and associated work (cutting, grouting, PCC filling, dispoing waste material, etc., complete) and fixing mounting arrangement suitable for SPV modules so as it can withstand wind speed of 200 km per hour. The mounting structure is to be installed at RCC Roofs and the array structure has to be so designed that maximum load is directly on roof beams and columns. It shall also occupy minimum space without sacrificing the output of SPV panels & adequate space between the arrays shall be available for easy cleaning and maintenance. Nuts, bolts, mounting structure including module mounting structure shall have to be adequately protected from the atmosphere and weather prevailing in the area. All the fastners shall be of Stainless Steel of grade SS316. Notes : (a) Two numbers of anti theft fastners of Stainless Steel on two diagonally opposite corners of each module shall be provided. (b) The modue mounting structure shall be of fixed to provide maximum generation. (c) MMS design shall be supported with Stadpro Report vetted by Third Party (Gov Institute) and submitted for the approval of the Acepting Officer. (d) The height of Roof top MMS shall be as per latest MNRE & IREDA guidelines.

Sl Item 1 Contd…. (E) Lightning Protection for PV Array : Design, procure and fix lighting arrestor system cofirming to IS/ IEC-62305 (Part 1 - 4) on the roofs. The air terminal shall be fixed at the top of GI elevation pole with base so as to be at least two meter above the structure to be protected. Its height above roof level shall be depend upon the level of protection and protection radii required. Notes : (a) The cost of all equipments, Copper strip upto earth test point, etc., shall be deemed to be included in this item. (b) The cost of sufficient earthing for lightning protection is also included in this item and no extra payement will be made to the contractor on this account. (F) Power Conditioning Unit : Procure, fixing, testing and commissioning of 45 KW AC (nominal power), Solar power inverter suitable to convert DC power of Solar PV module/ array to AC for further feeding to grid confirming to IEC : 61683 for efficiency, IEC : 62109-1 or equivalent for safety and IEC : 62093 for reliability. The input DC & output AC technical specification of Inverter are as under :-. Input (DC) (a) Max Absolute DC input Voltage : 1000 V b) Start-up DC input voltage : 360 - 500 V (Default 420V) c) Operating input DC voltage range : 300 - 950 V (d) No of independent MPPT : One (e) MPPT input DC voltage range at Pacr : 480 - 800 V DC (f) Max input DC Current : 110 A (g) Maximum input short circuit current : 160 A (h) No of Protected DC inputs : 8-20

Sl Item 1 Contd…. Output AC (a) AC grid connection type : 3Phase (4W + PE) (b) Nominal Power at unity PF : 45 kW (c) Max AC output power : 45KW (d) Max AC output Apperant power : 45KVA (e) Max AC output Current : 180 A (f) Max AC fault current : 207 A (g) Nominal Output Voltage : 415 V (h) Output voltage range : 415 V ± 20% (j) Output Frequency : 50 Hz ± 3Hz (k) Power factor : 0.995 (l) Harmonic Distortion Current : 3% (m) Efficiency : 98% (n) Standby operation consumption : 1.5 W

(p) Operating temperature upto 85 degree centigrade (q) The inverter shall have minimum IP-67 protection, ground fault monitoring, grid monitoring, protection for anti-islanding, DC reverse polarity, AC and DC short circuit current and over current, AC and DC over voltage and over temperature. (r) The inverter shall adjust voltage and frequency levels to suit the grid. (s) The inverter shall be self commulated with Pulse Width Modulation (PWM) technology and shall be capable of synchronise maximum with in one min. (t) Maximum Power Point Tracker (MPPT) confirming to IEC 62093 shall be integrated in the inverter to maximise the energy drawn from the PV array (u) Monolithic design of inverter is not permitted. (v) The inverter shall have suitble nos of protected inputs (asper design) and outgoing shall be protected by ACB/MCCB.

Sl Item 1 Contd…. (x) The inverter should have MODBUS, PROFIBUS, ETHERNET common ports. (y) The inverter shall include appropriate self protection and self diagnostic feature to protect itself and the PV array from the damage in the event of inverter componant failure or from parameters beyond the inverters safe operating due to internal and/ or external causes. Inverter shall have protection arrangement against ground leakage faults, over voltage, (SPD) & over current. Inverter shall have arrangement for adjustment for adjusting DC input current and shall trip against sustainable fault down stream and shall not restart till fault is rectified. (z) The inverter should have provisions of Galvanic isolation, anti-islanding protection (IEEE 1547/UL 1741) equivant IS and lightening. (aa) PCU must have the feature to work in tandem with other similar PCUs and be able to be successively switched ON and OFF automatically based on solar radiation variations during the day.

(G) Net Metering : Quoted rates inclusive of installtion of Net meter.

Sl Item 1 Contd…. (H) Balance of System (BOS) Items/ Components :- The BOS items/ components of the SPV power plants/ systems deployed under this project shall conform to the latest edition with certificate of IEC or equivalent BIS Standards/ MNRE specifications/ as specified in Para 1.01 of 'Minimal Technical Requirements'/ 'Standards for SPV System/ Plants' to be deployed during this financial year under the programmes of MNRE available on MNRE website as on last date of quoting of tender. Notes : (a) The contractor must visit the site before quoting the rates for this item to asses the site condition so as to decide up on location and layout of SPV, placement of inverter, length of DC cables, lightning arresters, etc., complete. (b) The contractor shall submit complete scheme including electrical diagram of the work, schematic diagram, SPV module layout, placement of LAs, Civil work, etc., complete as per IREDA latest guidelines as applicable, Relevant IEC/IS norms to the GE for approval with in one month of date of commencement of the work.

Sl Item 1 Contd…. (c) The rate quoted is deemed to be inclusive of the all protection system including surge, lightning arresters and necessary earthing all as specified and directed d) Quoted rates inclusive of necessary facility for monitoring of solar power generation through app along with necessary sim card and recharge for 2 years (d) Training : On successful commissioning of the plant, training shall be provided on plant operation and maintenance to a team (Engineers and technicians/ operators) as nominated by department for minimum one month.

Design, procure, erection, installation, testing and commissioning including connecting to local utility grid; Roof top on car parking structure, On-grid Solar Photovoltaic Plant of 11 kW capacity including Solar Photovoltaic Modules, DC Cabling, Module Mounting Structure, Array Combining Boxes, Lightning Protection of SPV modules and other accessories, Central Inverter as Power Conditioning Unit, Weather Station and Data Monitoring System all as per detailed specifications given in Particular Specification, latest MNRE/IREDA guidelines and directions, meeting the Domestic Content Requirement (DCR), consisting of all requisite accessories (BOS-Balance of System) and incuding the following main componenets:- Make : Monocrystalline PV Modules & PV Cells : TATA / BHEL / HMV / Waaree Energies Ltd / Vikram / Adani / Emmvee / Premier Energies Solar Invertor/ Power Conditioning Unit (PCU) : DELTA / SUNGROW / GROWATT / POLYCAB / HAVELLS / FIMER Note: The SPV panel will be fixed on roof top of car parking structure. The Basic Structure for car parking will be measured and paid separately in respective items of schedule.

Sl Item 2 Contd…. (A) Mono Crystaline Silicon Solar Photovolaic Modules of 400 Wp or more (module power and number of modules to be selected according to available roof top area & adequate walkway), having cell efficiency more than18% under standard conditions, form fill factor more than 0.76, plant performance ratio 75%, made of high transmitivity glass front surface and it shall give high encapsulation gain (transmittance above 90% and bending less than 0.3%). The modules shall have the following features :- (a) The electrical parameters of SPV modules under standard test condition of irradiance 1000 W/sqm, AM 1.5 Spectrum and temp 25 degree Celsius shall be as under:- (i) Max Peak Power Pmax : 400Wp or more (ii) Voltage at Max Power : 39 V (iii) Current at Pmax : 9 A (iv) Short Circuit Current : 10 A (v) Open Circuit Voltage : 47 V (vi) Module Efficiency : 19 % (b) Rated output of the modules shall have positive tolerance of 3-5% and no negative tolerance is allowed. (c) It shall perform satisfactorily in RH 85% with temperature up to +85 degree C and should withstand wind of 200 kmph on the surface of panel. (d) PV modules shall be warrented for their output peak watt capacity, and it shall not fall of its initial value below 90% in first 10 year end and 80% after the end of 25 years.

Sl Item 2 Contd…. (e) Each module shall have RFID tag encapsulated with solar cell bearing following details :- (i) Name of Manufacturer of SPV Module (ii) Name of Manufacturer of Solar Cell (iii) Month and year of Manufacturing (seperately for cell and module) (iv) Country of Origin (both cell and module) (v) Peak wattage, Im, Vm and fill factor of the module (vi) Date of year of obtaining IEC PV module qualification certificate including the test lab issuing IEC certificate. (vii) Unique serial no and model no of module (viii) IV curve of module (f) The temperature coefficient of power for the module shall not be more than 0.50% per degree Celcius. (g) Every module must have bypass diode of suitable capacity. (h) PV module must confirm to latest edition of IEC 61215/ IS 14286. In addition the modules must confirm to IEC 61730 Part I and II for construction and testing & safety qualifications and confirming to IEC 62804 PID. (j) It shall also be in confirmity to latest minimum technical specification issued by MNRE & IREDA from time to time. Modules should be of MNRE & IREDA approved companies and as per latest IEC/IS standards. (k) Provision of earthing and earth strip / cable etc for earth of solar PV module/ array etc as per latest IS/MNRE & IREDA norms to be provided and cost of the same is deemed to be included in the item and no extra amount will be paid to the contractor on this account. (The earthing shall be of copper earth plate and having specification as per SSR Item Sr 19474).

Sl Item 2 Contd…. (l) RFID reader is to be provided by contractor (m) Both PV cells and SPV modules shall be make in India. (n) The minimum Net Annual Generation shall be 1,460 units per Kilo Watts.

(B) Junction Boxes : Supply and fix jucntion boxes of suitable Nos (as per design)/ OEM recommendations inputs and suitably rated output having separate DC fuses for both (+) & (-) on input and isolator on output terminal for each string. Each junction box must have a spare input terminal. The junction boxes shall be dust and vermin proof and water proof made of FRP/ Thermo Plast with IP 65 protection in compliance with IEC 62208 and shall be UV resistant, fire retardant. It shall have surge protection and maintenance free earthing as per relecant standard. The junction box shall have suitable arrangement of the following :- (a) The strings are required to be connected to the copper bus bar through individual fuses. (b) Provide arrangement for disconnection (DC dis-connection switch) for each SJB/ SCB. (c) Provide a test point for each sub group for quick fault location and to provide group array isolation. (d) Each array box shall be of relevant IEC standard. (e) Each array junction box shall have suitable bypass & reverse blocking diodes for maximum DC blocking voltage of 1000V with suitable arrangement of its connection. Reverse blocking and bypass diodes shall work for extreme temperatures and shall have efficiency of 99.98% confirmed by appropriate IEC standard. Make : As per OEM

Sl Item 1 Contd… (C) DC Cables : Suitable size of XLPE insulated tinned Copper cable (min 6 sqmm of size) of Solar grade, 1100 Volts and UV resistant for outdoor installations confirming to IEC : 60227/15694 & 60502/ IS : 1554 (Pt I&II) and shall be as under :- (a) All cables and connectors for use of installation shall be of Solar grade which can withstand harsh enviromnetal conditions including high temperature, UV radiations, rain, dirt, burial and attack by moss and microbes for 25 years and voltage as per latest IEC/ IS. (b) All the cables / wires shall be provided with UV resistant printed ferrules for DC side. (c) The size of the cable shall be such that avearage voltage drop at full power from PV module to inverter shall be less than 1.5%. (d) Cable batch No, drum No, IS code and size and make shall be metioned on every one meter or as per OEM practice. (e) The wiring of the module interconnection shall be in UPVC/HDPE pipe of suitable size. (f) The cost of interconnecting DC Copper cable, MS cable trays, and earth work for trenches/ MS cable trays suitable to accommodate Solar grade cables from SPV module upto inverters are included in the item.

Sl Item 1 Contd…. (D) Module Mounting Structure (MMS) : Design, procure, fixing, support structure made of hot dipped galvanised with min 85 micron thickness including necessary welding and associated work (cutting, grouting, PCC filling, dispoing waste material, etc., complete) and fixing mounting arrangement suitable for SPV modules so as it can withstand wind speed of 200 km per hour. The mounting structure is to be installed at MS car parking structure and the array structure has to be so designed that maximum load is directly on main supporting structure of car parking coumns. It shall also occupy minimum space without sacrificing the output of SPV panels & adequate space between the arrays shall be available for easy cleaning and maintenance. Nuts, bolts, mounting structure including module mounting structure shall have to be adequately protected from the atmosphere and weather prevailing in the area. All the fastners shall be of Stainless Steel of grade SS316. Notes : (a) Two numbers of anti theft fastners of Stainless Steel on two diagonally opposite corners of each module shall be provided. (b) The modue mounting structure shall be of fixed to provide maximum generation. (c) MMS design shall be supported with Stadpro Report vetted by Third Party (Gov Institute) and submitted for the approval of the Acepting Officer. (d) The height of Roof top MMS shall be as per latest MNRE & IREDA guidelines.

Sl Item 2 Contd…. (E) Lightning Protection for PV Array : Design, procure and fix lighting arrestor system cofirming to IS/ IEC-62305 (Part 1 - 4) on the car parking roofs. The air terminal shall be fixed at the top of GI elevation pole with base so as to be at least two meter above the structure to be protected. Its height above roof level shall be depend upon the level of protection and protection radii required. Notes : (a) The cost of all equipments, Copper strip upto earth test point, etc., shall be deemed to be included in this item. (b) The cost of sufficient earthing for lightning protection is also included in this item and no extra payement will be made to the contractor on this account. (F) Power Conditioning Unit : Procure, fixing, testing and commissioning of 11 KW AC (nominal power), Solar power inverter suitable to convert DC power of Solar PV module/ array to AC for further feeding to grid confirming to IEC : 61683 for efficiency, IEC : 62109-1 or equivalent for safety and IEC : 62093 for reliability. The input DC & output AC technical specification of Inverter are as under :-. Input (DC) (a) Max Absolute DC input Voltage : 1000 V b) Start-up DC input voltage : 360 - 500 V (Default 420V) c) Operating input DC voltage range : 300 - 950 V (d) No of independent MPPT : One (e) MPPT input DC voltage range at Pacr : 480 - 800 V DC (f) Max input DC Current : 110 A (g) Maximum input short circuit current : 160 A (h) No of Protected DC inputs : 8-20

Sl Item 2 Contd…. Output AC (a) AC grid connection type : 3Phase (4W + PE) (b) Nominal Power at unity PF : 11 kW (c) Max AC output power : 11 KW (d) Max AC output Apperant power : 11KVA (e) Max AC output Current : 40 A (f) Max AC fault current : 50 A (g) Nominal Output Voltage : 415 V (h) Output voltage range : 415 V ± 20% (j) Output Frequency : 50 Hz ± 3Hz (k) Power factor : 0.995 (l) Harmonic Distortion Current : 3% (m) Efficiency : 98% (n) Standby operation consumption : 1.5 W

(p) Operating temperature upto 85 degree centigrade (q) The inverter shall have minimum IP-67 protection, ground fault monitoring, grid monitoring, protection for anti-islanding, DC reverse polarity, AC and DC short circuit current and over current, AC and DC over voltage and over temperature. (r) The inverter shall adjust voltage and frequency levels to suit the grid. (s) The inverter shall be self commulated with Pulse Width Modulation (PWM) technology and shall be capable of synchronise maximum with in one min. (t) Maximum Power Point Tracker (MPPT) confirming to IEC 62093 shall be integrated in the inverter to maximise the energy drawn from the PV array (u) Monolithic design of inverter is not permitted. (v) The inverter shall have suitble nos of protected inputs (asper design) and outgoing shall be protected by ACB/MCCB.

Sl Item 2 Contd…. (x) The inverter should have MODBUS, PROFIBUS, ETHERNET common ports. (y) The inverter shall include appropriate self protection and self diagnostic feature to protect itself and the PV array from the damage in the event of inverter componant failure or from parameters beyond the inverters safe operating due to internal and/ or external causes. Inverter shall have protection arrangement against ground leakage faults, over voltage, (SPD) & over current. Inverter shall have arrangement for adjustment for adjusting DC input current and shall trip against sustainable fault down stream and shall not restart till fault is rectified. (z) The inverter should have provisions of Galvanic isolation, anti-islanding protection (IEEE 1547/UL 1741) equivant IS and lightening. (aa) PCU must have the feature to work in tandem with other similar PCUs and be able to be successively switched ON and OFF automatically based on solar radiation variations during the day.

(G) Net Metering : Quoted rates inclusive of installtion of Net meter.

Sl Item 2 Contd…. (H) Balance of System (BOS) Items/ Components :- The BOS items/ components of the SPV power plants/ systems deployed under this project shall conform to the latest edition with certificate of IEC or equivalent BIS Standards/ MNRE specifications/ as specified in Para 1.01 of 'Minimal Technical Requirements'/ 'Standards for SPV System/ Plants' to be deployed during this financial year under the programmes of MNRE available on MNRE website as on last date of quoting of tender. Notes : (a) The contractor must visit the site before quoting the rates for this item to asses the site condition so as to decide up on location and layout of SPV, placement of inverter, length of DC cables, lightning arresters, etc., complete. (b) The contractor shall submit complete scheme including electrical diagram of the work, schematic diagram, SPV module layout, placement of LAs, Civil work, etc., complete as per IREDA latest guidelines as applicable, Relevant IEC/IS norms to the AGE (I) for approval with in one month of date of commencement of the work.

Sl Item 2 Contd…. (c) The rate quoted is deemed to be inclusive of the all protection system including surge, lightning arresters and necessary earthing all as specified and directed d) Quoted rates inclusive of necessary faciility for monitoring of solar power generation through app along with necessary sim card and recharge for 2 years (d) Training : On successful commissioning of the plant, training shall be provided on plant operation and maintenance to a team (Engineers and technicians/ operators) as nominated by department for minimum one month.

Excavating in post holes (or similar holes) each n exc 0.5 cu m, getting out, in soft/loose soil, returning, filling in and ramming earth or broken rubble mixed with earth around, in layers not exceeding 25 cm and removing surplus soil n.exc 50 m from strating point, all as specified and directed.

M&L for cement concrete 1:3:6 type C-2 using 40mm graded stone aggregate as filling in mass concrete and foundation filling, complete all as specified and directed.

S&F steel works in tubular trusses including special shaped washer etc complete using ERW or induction butt welded tubes conforming to IS 1161-1979 grade St-240 complete all as specified and directed.

S&F mild steel work as in bands, straps, hold fast, wall ties, hooks for hanging fans, angle cleats & similar small articles conforming to Fe 410 or Fe 310 complete all as specified and directed

S&F of mild steel framed work such as joist, channel, angle of size or tee section conforming to Fe 410 (Gde E-250) complete all as specified & directed.

M&L for preparation of new or previously un-treated steel and iron surfaces of any description over 10cm in width or girth not otherwise described and applying two coats of synthetic enamel paint over one coat of red oxide primer complete all as specified and directed

S&F Pre-painted galvalume aluminium zinc coating GI based corrugaed steel sheet (Make: Tata bluescope/ Jindal ) 0.50mm thick of approved colour having tensile strength of 550 Mpa as in roof covering/cladding, fixed with self tapping screws&washers (Make: hilty/fissers) with 150mm end lap and one corrogation side lap whereever required, penetrations and lap in sheet shall be sealed by using proper sealant profile/HDPE fillers whereever required to close voids between sheets and fastners etc. complete all as specified and directed. Note : (i) The colour of sheet for bldg shall be approved by Engr-in-Charge. (ii) Sheeting shall be fixed of at any height. (iii) Overlapping will not be measured.

Removing excavated soil exc. 250m but n.exc 500m and depositing including spreading and levelling in layers n exc. 25cm thick etc complete all as specified and directed.

S&F Galvanised. 2 strand, steel barbed wire 2.24mm dia barbed with 2mm dia barbs at 75mm spacings and straining and fixing to any type of standard rails straining bolts, including, securing or tying at crossings with and provision of galvanised mild steel wire, staples or steel pins, etc. as directed (each line wire to be measured)

Excavation in trenches n. exc 1.5 m wide and n.exc 1.5 m in depth and getting out, in soft /loose soil for laying of under ground cable/pipe etc. complete all as specified and as directed

Returning, filling in, including spreading, leveling, watering and well ramming in layers n. exc 25 cm thick in soft/loose soil, complete, all as specified and directed.

Removing surplus excavated material to a distance not exc 50 meter and depositing where directed at level not exc 1.5m above the starting point, complete, all as specified and directed.

Material and labour for providing sand cushioning with dry fine sand including filling, spreading, levelling in layers in cable trench with approved quality of sand for protection of under ground cable complete all as specified and directed.

Supplying & laying burnt clay bricks, sub class 'B', designation 75, old size laid in trenches as in cable protection complete all as specified and directed.

Labour and T&P for boring holes horizontally under road/pavement/hard standing/ footpath/blast wall without damaging the surface of road (minimum 1.0 meter below the road surface) with the help of GI tubing not exc.100mm bore for passing of U/G cable, complete all as specified and directed. Note: GI pipe laid will be measured and paid separately under the respective items of schedule.

M&L for 80 mm bore GI tubing light grade with all fittings laid across road or across PCC drains, along electric pole or floor/wall for cable protection complete all as specified and directed.

Supply, laying and testing of LT cable 1100 volt grade XLPE insulated underground electric cable PVC bedded and sheathed steel wire/strip armoured aluminum stranded conductor of size 70 Sq mm 3.5 core complete all as specified and directed.

M&L for cable route indicator for 1100 Volts grade cable with 150 mm dia cast iron plate circular or rectangular in shape of minimum 8 mm thickness welded with 35x35x4 mm angle iron mast 0.5 mtr from the GL including PCC foundation 1:3:6 type C1 of size 30x30x45 cm and necessary earth work all as directed.