PROVISION OF STANDBY DG SET OF 600 kVA CAPACITY AT COMNETCEN, MUMBAI

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Tender Inviting Authority: COMMANDER WORKS ENGINEER (NAVAL WORKS) MUMBAI

Name of Work : PROVISION OF STANDBY DG SET OF CAPACITY 600 KVA AT COMNETCEN, MUMBAI

Contract No: 8569/CWE (NW) MUMBAI/E8

Sl. No. Item Code / Make Quantity Estimated Rate Addition / Deduction Addition / Deduction Values Currency Convertion against each Item Quoted Currency in INR / Other Currency RATE In Figures To be entered by the Bidder Rs. P Excise Duty VAT Freight Charges ( Unloading & Stacking) Any Other Taxes/Duties/Levies Other Taxes 2 IIIrd Party i.e DGS&D / RITES etc Inspection Charges @0.34%+Service Tax Less for Cenvat Credit,if any respect of Supplies Under full Excise Duty Category TOTAL AMOUNT TOTAL AMOUNT With Taxes TOTAL AMOUNT In Words

1 Supply, installation, testing and commissioning of 600 kVA diesel generating set complete with 415 V, 3-phase, 4-wire, 50 Hz alternator, suitable for automatic starting and operation through microprocessor-based AMF system, complete with factory-built acoustic enclosure, common base frame, anti-vibration mountings, starting batteries, battery charger, fuel system, control panel, exhaust system, interconnecting cables, earthing, accessories and all associated works, complete as required and as specified herein or as directed by Engineer-in-Charge. The DG set shall be of reputed make and shall be of factory-built/factory-assembled type, having a rated capacity of not less than 600 kVA (480 kW) at 0.8 power factor, suitable for standby/emergency power supply at 415 V, 3-phase, 4-wire, 50 Hz, complete with all necessary equipment and accessories for satisfactory operation. The DG set shall conform to the latest applicable CPCB IV norms, applicable statutory/type approval requirements including ARAI approval, and relevant provisions of ISO 8528 and applicable IS/BS standards. 1 Each Job 0 Excess(+) Full Conversion INR

1.01 1 — DIESEL ENGINE: Diesel engine shall be heavy-duty, 4-stroke, compression ignition type, radiator-cooled, turbocharged, with electronic governing system and suitable for continuous reliable operation at the rated output of the DG set. The engine shall conform to the applicable requirements of IS: BS 5514 / ISO 3046 and shall be complete with all standard accessories as recommended by the manufacturer. The engine shall be provided with 24 V DC electric starting system, complete with suitable heavy-duty starting motor, starting batteries, battery leads, battery charger and all necessary accessories. The engine shall have suitable automatic safety/protection arrangements including protection against low lubricating oil pressure, high coolant temperature, overspeed and other standard engine fault conditions. A complete fuel system comprising suitable fuel injection system, fuel pump, fuel filters, fuel piping, flexible connections and integrated/suitable fuel tank of adequate capacity shall be provided complete. All fuel-system accessories required for satisfactory operation of the DG set shall be included. The engine shall be complete with radiator, cooling fan, coolant system, lubricating oil system, air intake system, exhaust outlet, flexible exhaust connection and all other accessories as recommended by the OEM. 2 — ALTERNATOR: Alternator shall be brushless, self-excited, single-bearing type, AVR controlled and suitable for operation at 415 V, 3-phase, 4-wire, 50 Hz, with rated power factor of 0.8 lagging and suitable for the specified 600 kVA output. The alternator shall have Class-H insulation and minimum IP-23 degree of protection and shall conform to the applicable requirements of IS: 4722 / BS 5000 / ISO 8528 or equivalent/latest applicable standards. The alternator shall be complete with automatic voltage regulator, suitable terminal arrangement, necessary protection, sensing arrangement and all other accessories required for satisfactory and stable operation of the DG set. 0 Excess(+) Full Conversion INR

1.02 3 — DG ENGINE CONTROL PANEL AND AMF CIRCUIT SYSTEM: The DG set shall be provided with a suitable microprocessor-based DG control and monitoring panel, complete with all necessary indications, controls, metering, protection and alarm/trip facilities as per OEM recommendations. The control panel shall include, as a minimum, suitable indications/monitoring for: (a) DG output voltage and current. Frequency. kVA/kW and power factor. (b)Engine speed. (c)Battery voltage. (d)Engine running hours. (e)Engine coolant temperature. (f)Engine lubricating oil pressure. Other essential engine and alternator parameters. The panel shall incorporate suitable protection functions for the DG set including over/under voltage, over/under frequency, overload/overcurrent, low lubricating oil pressure, high coolant temperature, overspeed, battery-related faults and other standard protections. The DG control system shall be suitable for integration with a microprocessor-based Automatic Mains Failure (AMF) system and shall provide suitable potential-free contacts/communication interface for automatic starting, loading, unloading and stopping of the DG set. The AMF system shall be capable of sensing failure/abnormal conditions of the normal mains supply and automatically initiating the DG starting sequence and transfer of load to the DG supply after the programmed time delay. On restoration of healthy mains supply, the system shall automatically transfer the load back to mains after the programmed time delay and thereafter unload and stop the DG set after suitable cooling/run-on period. The system shall also provide suitable manual/auto modes, emergency stop facility and necessary indications/alarms. 0 Excess(+) Full Conversion INR

1.03 4 — ACOUSTIC ENCLOSURE: The DG set shall be provided with a factory-built acoustic/weatherproof enclosure conforming to the latest applicable CPCB requirements. The acoustic enclosure shall be designed to achieve a noise level of not more than 75 dB(A) at 1 metre under free-field conditions, or the lower limit stipulated by the applicable statutory requirements, whichever is more stringent. The enclosure shall be fabricated from suitable CRCA steel sheets, adequately treated against corrosion and finished with suitable powder coating/paint system. The enclosure shall be complete with suitable acoustic treatment using fire-retardant acoustic material/mineral wool, adequate ventilation arrangement, air inlet and outlet arrangements, access doors, inspection openings and weather protection. The acoustic enclosure shall be suitably designed to prevent excessive heat accumulation within the enclosure and shall incorporate suitable supporting structure, vibration isolation arrangements and all necessary accessories. The enclosure shall be provided with suitable access doors for maintenance. Doors shall be fitted with suitable locking arrangements, hinges, handles, sealing arrangements and necessary hardware. The exhaust system shall be suitably connected through a flexible stainless-steel exhaust connection so as to prevent transmission of vibration to the enclosure and associated structures. Suitable exhaust silencer and exhaust piping shall be provided complete. 0 Excess(+) Full Conversion INR

1.04 5 — ACCESSORIES TO BE PROVIDED WITH EACH DG SET: The following accessories shall be supplied and installed complete with each DG set: (i) Suitable heavy-duty starting batteries complete with battery rack/box, battery leads and accessories. (ii) Suitable automatic battery charger and necessary battery charging arrangement. (iii) Suitable exhaust silencer and exhaust piping with flexible connection, supports, clamps and accessories. (iv) Suitable fuel tank/fuel system complete with fuel connections, valves, level indication and necessary accessories. (v) Two ISI-marked chequered rubber mats of size 1 m × 2 m × 19 mm. (vi) Standard tool kit as recommended by the DG set manufacturer. (vii) All necessary interconnecting power and control cables, cable glands, lugs, termination accessories and associated hardware. (viii) All necessary earthing and bonding arrangements for DG set, alternator, control panel, neutral and other metallic components. (ix) Suitable weatherproof shed over the complete DG set, wherever specified, fabricated from suitable MS/GI structural framework and 0.50 mm thick painted aluminium sheeting, complete with roofing, side cladding, supports, fasteners and all necessary accessories. (x) All other standard accessories recommended by the DG set manufacturer and necessary for complete and satisfactory operation of the DG set. 0 Excess(+) Full Conversion INR

1.05 6 — CIVIL WORKS, INSTALLATION, TESTING AND COMMISSIONING: Civil works for the DG set shall include construction/provision of suitable PCC foundation in 1:2:4 nominal mix using 20 mm graded aggregate (Type B-1), as applicable, including necessary excavation, earthwork, formwork, finishing, grouting, anchor bolts, structural supports and other associated works. The DG set shall be installed on a suitably designed common steel base frame with suitable anti-vibration mountings. Foundation dimensions and arrangement shall be in accordance with the approved OEM foundation drawing and recommendations. The work shall include provision of 1 metre wide plinth protection, wherever required, along with necessary drainage and other associated civil works. The contractor shall submit detailed foundation and installation drawings for approval before commencement of installation. 0 Excess(+) Full Conversion INR

1.06 All loading, unloading, transportation, shifting, positioning, alignment, installation, testing and commissioning of the DG set shall be carried out by the contractor. Suitable crane/hydra, lifting tackles and other equipment required for installation shall be arranged by the contractor. All necessary electrical connections, including interconnection of the DG set with the associated control/AMF system, shall be carried out complete. Cable routing, cable glands, lugs, termination, supports and all associated accessories shall be included in the quoted rate. The DG set shall be tested and commissioned at site in the presence of the Accepting Officer or his authorised representative/IEM in accordance with the applicable requirements of IS-10000-1980, relevant IS/ISO standards and manufacturer's recommendations. The DG set shall be subjected to a continuous 12-hour load test, comprising: 1 hour at no load 2 hours at 25% load 4 hours at 50% load 2 hours at 75% load 2 hours at 100% load 1 hour at 110% overload 0 Excess(+) Full Conversion INR

1.07 The contractor shall arrange the necessary load bank/heat load, diesel oil, lubricants, test instruments, tools, tackles and manpower required for carrying out the complete testing and commissioning. The cost of all such arrangements shall be deemed to be included in the quoted rate under Schedule 'A'. During testing, the DG set shall be checked for satisfactory operation, voltage, frequency, load performance, engine parameters, cooling system, lubrication system, fuel system, vibration, noise level, safety protections, automatic starting/stopping and AMF operation. If the DG set fails to satisfy the specified performance requirements or any defect is noticed during testing, the contractor shall rectify the defect or replace the defective component at his own cost within the period stipulated by the Accepting Officer and shall repeat the necessary tests until satisfactory performance is established and the DG set is accepted by the Accepting Officer. Note:The quoted rate shall include all materials, labour, transportation, loading/unloading, installation, testing, commissioning, civil works, foundation, structural supports, cabling, earthing, accessories, consumables, diesel, lubricants, testing load, tools and tackles and all other works required for satisfactory completion and commissioning of the DG set, unless specifically measured and paid for separately. 0 Excess(+) Full Conversion INR

10 Supplying and laying un-reinforced precast cement concrete cable protection cover, Class LV, Type 1 (Flat), size 250 mm × 150 mm × 40 mm thick, for low-voltage underground cable protection, laid over sand-cushioned cables with tight butt joints, complete all as specified and directed by the Engineer-in-Charge. 665 Each 0 Excess(+) Full Conversion INR

15.01 Outgoing: (a) MCCB, 4-pole, 400 A, 36 kA, thermal-magnetic type – 2 Nos. (b) MCCB, 4-pole, 200 A, 25 kA, thermal-magnetic type – 3 Nos. (c) MCCB, 4-pole, 63 A, 16 kA, thermal-magnetic type – 4 Nos. (d) MCB, 4-pole, 40 A, 10 kA, thermal-magnetic type – 2 Nos. (e) On-load changeover switch of 1000 A capacity for bypass arrangement – 1 No. 0 Excess(+) Full Conversion INR

15.02 Metering and Indication: (a) Digital type voltmeter, range 0–800 V – 1 No. (b) Digital type ammeter complete with suitable CTs – 1 No. (c) LED type phase indication lamps R, Y & B – 1 Set. Complete all as specified and directed. 0 Excess(+) Full Conversion INR

17.01 The AMF panel shall be complete with microprocessor-based control system capable of providing the following functions: (i) Automatic starting of the DG set upon failure of mains supply. (ii) Automatic transfer of load to DG supply through ACBs. (iii) Automatic re-transfer of load to mains supply upon restoration of healthy mains supply, including adjustable time delay. (iv) Provision for minimum three automatic starting attempts in the event of failure to start. (v) Manual/Auto/Off operating modes. Complete all as specified and directed. 0 Excess(+) Full Conversion INR

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