PROVISION OF RETROFIT EMISSION DEVICE FOR DG SETS AND CERTAIN MINOR WORKS AT AF STATION YELAHANKA

Amount

Point wiring with 1.5 Sqmm (nominal cross sectional area ), single core, PVC insulated with multistranded PVC unsheathed copper conductor FRLS cable in and including PVC casing - capping of suitable size medium grade ISI marked complete and sunk CI/pressed steel terminal switch boxes flush mounting type with new hylam sheet (white) top cover, including earth wire continuity of PVC insulated, unsheathed 1.5 Sqmm (nominal cross sectional area) copper conductor connected to all fittings, sunken boxes and common earth and connected to earth dolly for One ceiling fan point controlled by one 5 Amps switch complete all as specified and directed by Engr-in-Charge.

S&F switch piano 5 Amps flush type one way all as specified and directed.

All as per item No 1 above but wiring with 2.5 sq mm FRLS copper cable including earth continuty conductor with 2.5 sq mm FRLS copper cable for one 6 pin 15 Amps socket outlet on independent board controlled by 16 Amps switch complete all as specified and directd.

S&Fswitch socket combination 6/16 Amps with box, multi pin flush type complete all as specfiied and directed.

S&F ceiling rose, three terminal, PVC/polycarbonate, isolated body, ISI marked complete all as specified and directed.

S&F stepped type electronic fan regulator flush type on the existing phenolic laminated sheet etc. as reqd all as specified and as directed.

S&F ceiling fans, complete with three blade, down rod, accessories 230V, 1200mm sweep, with Squirrel cage induction motor complete all as specified and directed by Engr-in-charge.

S&F On load Automatic Change over Switch 4 Pole 250 Amp 415 Volt including sheet metal enclosures of suitable size,with operating hadle in front, confirming to IS/IEC-13947 226 including fixing accessories on wall/inside LT panel and making connection with existing LT cables complete all as specified and directed by Engr-in-Charge.

Supply, installation, testing and commissioning of 10 KVA Servo Controlled Voltage Stabilizer, single phase, designed for input voltage range 300-460 Volts and output voltage range 230 V, line frequency 50 Hz + 3 Hz, copper winding & provision of bypass switch, complete all as specified and directed by Engr-in-Charge.

Supply, installation, testing and commissioning of 2 KVA Isolation Transformer, single phase, designed for input voltage range 230 V and output voltage range 230 V, line frequency 50 Hz + 3 Hz, transformer ratio 1:1, load regulation + 3.5%, copper metal shielding materials, air cooled, class of insulation B, complete all as specified and directed by Engr-in-Charge. Note for Item No 9&10 : Servo controlled voltage stabilizer & Isolation transformer shall be tested as per BIS 9815:1994 & 2026 in presence of rep of GE (AF) Yelahanka in manufacture premises.

Supply, installation, testing and commissioning of industrial grade power socket 3 pin (phase, neutral and earth) including suitable 3 pin plug, mounted on an IP-44 enclosure as per IEC 60309, provision of one MCB 16 Amp SPN, 10 KA rupturing capacity, 'C' Curve as per BS:3871 Part-1 and 1965 IS:8825 (1996) compete all as specified and directed by Engr-in-Charge.

Point wiring with 2.5 Sqmm (nominal cross sectional area), single core, PVC insulated with multistranded PVC unsheathed copper conductor FRLS cable in and including PVC casing - caping of suitable size medium grade ISI marked complete and sunk CI/pressed steel terminal switch boxes flush mounting type with new hylam sheet (white) top cover, including earth wire continuity of PVC insulated, unsheathed 2.5 Sqmm (nominal cross sectional area) copper conductor connected to all fittings, sunken boxes and common earth and connected to earth dolly complete all as specified and directed by Engr-in-Charge.

Supply, Installation, testing and commissioning of retrofit emission control device(RECD) for 25 KVA DG Set conforming to the following specification complete all as specified and directed: (a) The retrofit device shall confirm to the norms specified by CPCB. (b) Purification technology: No Filters, No Solvents, No chemicals. (c) Pollutant captured: PM 2.5 PM 10 (d) Electric power requirement: 220 volts AC (e) Ampere :1.8Amps (f) Watts: 100 to 350 Watts (g) Back pressure: 4 to 5kPa, No adverse impact on the engine (h) Stack back pressure: less than 1 kPa, No adverse impact on the engine (i) Material: Mild steel (j) By product: Soot particles (k) Disposal: No burning or dumping of captured PM (l) Collection of capturing particles: Once in 2 Months Make: Chakra Innovations or any make having type approval certificate registration from one of the CPCB

Supply, Installation, testing and commissioning of retrofit emission control device(RECD) for 125 KVA DG Set conforming to the following specification complete all as specified and directed: (a) The retrofit device shall confirm to the norms specified by CPCB. (b) Purification technology: No Filters, No Solvents, No chemicals. (c) Pollutant captured: PM 2.5 PM 10 (d) Electric power requirement: 220 volts AC (e) Ampere :1.8Amps (f) Watts: 100 to 350 Watts (g) Back pressure: 10 to 15kPa, No adverse impact on the engine (h) Stack back pressure: less than 1 kPa, No adverse impact on the engine (i) Material: Mild steel (j) By product: Soot particles (k) Disposal: No burning or dumping of captured PM (l) Collection of capturing particles: Once in 2 Months Make: Chakra Innovations or any make having type approval certificate registration from one of the CPCB

Supply, Installation, testing and commissioning of retrofit emission control device(RECD) for 160 KVA DG Set conforming to the following specification complete all as specified and directed: (a) The retrofit device shall confirm to the norms specified by CPCB. (b) Purification technology: No Filters, No Solvents, No chemicals. (c) Pollutant captured: PM 2.5 PM 10 (d) Electric power requirement: 220 volts AC (e) Ampere :1.8Amps (f) Watts: 100 to 350 Watts (g) Back pressure: 10 to 15kPa, No adverse impact on the engine (h) Stack back pressure: less than 1 kPa, No adverse impact on the engine (i) Material: Mild steel (j) By product: Soot particles (k) Disposal: No burning or dumping of captured PM (l) Collection of capturing particles: Once in 2 Months Make: Chakra Innovations or any make having type approval certificate registration from one of the CPCB

Note for Srl Item No. 13 to 15 also included following: (i)General Technical Requirements (GTR) / Commissioning :- a) Emission Control retrofit device shall be complete with safety precautions to ensure no damage should be done to the DG set operations under any circumstances. The Emission Control retrofit device should be closely coupled with the DG exhaust to ensure 100% of the exhaust passes through the Emission Control retrofit device. b) Anti-Vibration mountings shall be provided for complete Emission Control retrofit device in case of flexible coupling with the diesel generator exhaust. c) Emission Control retrofit device should have protection against under voltage, over voltage, under frequency, over frequency, low battery voltage, over current, earth-fault, short circuit, phase sequence changes etc. d) The Emission Control retrofit device shall be with corrosion resistive and HR paint. e) Unloading and placement of the Emission Control retrofit device at the time of delivery is included in the scope of work. f) The contractor shall provide the trial run (Testing) of Emission Control retrofit device. The contractor shall conduct trial run of the Emission Control Retrofit Device with the available electrical load at site. The trial run shall be for TWO hours. The electrical loading shall not be more than the rated capacity of the DG set. g) The cost Including of Exhaust piping as per required site and MS Structure by using Angle /Channel of including cutting, Grouting , welding, with a coat of epoxy paint as required and for support / mounting for DG Engine exhaust pipe and RECD ,and also include cost of Lab Test from ARAI or NBAL accredited Labs

(ii) Scope of Installation: a) Installation of Emission Control Retrofit Device when offered by the contactor is inclusive in the scope of supply and shall be done by the contractor. b) Construction of suitable earthing station (if applicable) and necessary connections shall be done by the seller (separately measurable). Warranty/Service : 12 months Number of preventive maintenance visits offered in a year during warranty period: 2 visits (iii) Category: Application: Reduce particulate matter (PM 2.5), Carbon Monoxide and Hydrocarbons emitted from Diesel Engine Technology/Type: ESP, Wet Scrubbing, Diesel Oxides Catalyst or any other Guaranteed specified Particulate matter (PM 2.5) Carbon Monoxide, Hydrocarbon reduction efficiency (Min) Guaranteed specified Particulate matter (PM 2.5) Carbon Monoxide reduction efficiency more than 75 %, Hydrocarbon reduction efficiency more than 90 % particular matter ((PM) reduction efficiency more than 85% for DG set

(iv)TEST REPORTS: Certification: Device should be ‘Type Approved’ as per the System and Procedure of Central Pollution Control Board(CPCB) for Emission Compliance Testing of Retro-fit Emission Control Devices (RECD) For Diesel Power Generating Set Engines, Dated 01/02/2022, wide Pollution Control Series PCLS/12/2021-22 Adhering to this, RECD to be ‘Type Tested’ for an equivalent kVA family as per the System and Procedure from any one of the four Central Pollution Control Board, Govt, of India, recognized/approved test agencies/laboratories as given below: (a) Automotive Research Association of India (ARAI, Pune) (b) International Centre for Automotive Testing (ICAT, Manesar) (c) Indian Institute of Petroleum (IIP, Dehradun) (d) Vehicle Research Development Establishment (VRDE, Ahmednagar): Back Pressure due to the Emission Control retrofit device Maximum back pressure exerted by the Emission Control retrofit device at max prescribed load by DG OEM (as per the capacity of the DG set) (v) RECD shall be executed through agency/ make having type approval certificate and date from one of the CPCB. Necessary documents in this regard to be submitted before excution of work. The quoted rate shall be inclusive of the same.

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