Tender For Supply, Installation, Testing And Commissioning Of Smps Based Volts,Dc Powerpack Units Including Backup Battery For Powering A1 Node At Gsm Bts Site Underdgmne, Chennai, Chennai-Tamil Nadu
TDR : 53734482
Tender Notice
Corrigendum Details
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Chennai
Tamil Nadu
Corrigendum : Tender For Supply, Installation, Testing And Commissioning Of Smps Based Volts,Dc Powerpack Units Including Backup Battery For Powering A1 Node At Gsm Bts Site Underdgmne, Chennai
Name of Work:SITC of SMPS based Volts,DC Powerpack units including backup battery for powering A1 Node at GSM BTS Site underDGMNE, Chennai
Sl. No.
Item Description
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Supply and installing a SMPS based DC Power supply unit sutiable for operation with AC (190-260) Volts, 1Ph, 50+1.5 Hz, frequency, inputAC supply, Surge protector Varistor, and capable of delivering stable DC output of 48Volts, 2A-3A DC (minimum 2Hrs-3HrsBack up), inbuilt Battery Charger mechanism, 4 Nos of 12V, SMF battery, 12 AH (min) capacity, MCB of suitable rating for input, outputsupply terminal block, indication lamps for DC OK, Over Voltage, Low Batt, suitable for operation at operting temperature of 55 Deg Centigrade, 95% Humidity i/c testing and commissioning etc and as per the Technical Specification attached. The entire unit with battery shall be housed in a powder coated MS Sheet steel enclosure of min 16G, alongwith necessary ventillation arrangements, and suitable for secure mounting against surface/ floor/ wall etc., The Unit shall also have following features
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Input Voltage Range -190V AC-260V AC
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Output Voltage (Nominal) - 48 Volts DC
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Output Current 2A-3A (exclusive Battery Charging)
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Battery Capacity (Minimum)-12AH, SMF
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Battery Voltage (Nominal)-48 Volts (4x12 V)
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Inbuilt Battery Charging
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Note:1. The system shall be capable of providing backup of minimum 4 Hrs at DC 48V, 2A& will be subjected to load testing to check its efficacy.2. The system shall be designed to work in Non-AC environment3. Entire unit shall be carry a guarantee for a period of1 year.
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All the above cosists of
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S/L 3 core 1.5 sq mm armoured, PVC Insulated, copper conductor cable as required
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S/F 15 mm PVC pipe/casing caping i/c fixing on wall etc as required
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