Tenders Are Invited For Switches - Delivery And Implementation Of 18 Sets Of An Uninterrupted Power Supply S ... in Poland

Work Detail

Switches - Delivery And Implementation Of 18 Sets Of An Uninterrupted Power Supply System To Power Telecommunications Devices, 18 Industrial Switches And 18 Pieces Of External Ict Cabinets, Along With The Necessary Measurements And Documentation Necessary For The Proper Functioning Of The Cybersecurity System.. The Order In Question Requires The Supplier To Comprehensively Implement The Entire Subject Of The Order, In Accordance With The Conditions Specified Below: Delivery And Implementation Of 18 Sets Of An Uninterrupted Power Supply System To Power Telecommunications Devices: The Subject Of The Order Is The Delivery And Implementation Of 18 Sets Of A 48 V Dc Uninterrupted Power Supply System Intended To Power Telecommunications Devices, Together With A Lithium-Iron-Phosphate (Lifepo4) Battery Equipped With A System For Automatic Heating Of Cells When The Temperature Drops. Ambient Temperature Below 5 Degrees C. Each Set Must Be Brand New, Complete, Ready For Operation And Come From The Manufacturers Official Distribution Channel. Detailed Required Minimum Technical Parameters For Each Set - Table 1. Table 1 Required Minimum Technical Parameters For 18 Sets Of The Uninterrupted Power Supply System Description Minimum Requirements 1. General Requirements System Adapted For Continuous Operation 24/7 Modular Architecture Enabling The Replacement Of Rectifier Elements, Minimum 1+1 Redundancy Possibility Of Hot-Swap Modules Without Turning Off The System Compliance With Etsi And Ie Standards 2. Electrical Parameters Of The System Dc Output Nominal Voltage: –48 V Dc Adjustment Range: 42–58 V Dc Maximum Output Current: Min. 60 A Voltage Stabilization: ≤ ±1% Ripple: ≤ 200 Mvp-P -Ac Input Voltage Range: 85–300 V Ac Frequency: 45–65 Hz Power Factor: ≥ 0.95 3. Rectifiers Type: Modular, High-Efficiency Efficiency: ≥ 95% Parallel Operation Possible Hot-Swap Function Automatic Load Balancing 4. Power Distribution Minimum 4 Protected Dc Outputs Overcurrent Protection (Mcb) Separate Battery Protection Possibility To Expand The Number Of Circuits 5. Monitoring And Management System Functions: Voltage, Current And Power Measurement, Battery Monitoring (Soc, Soh) Event And Alarm Register, Remote Management Via Web Interface Interfaces: Ethernet Rj45 (Communication Via Snmp And Https) Rs485 / Modbus Can (For Batteries) Inputs/Outputs: Min. 4 Alarm Inputs (Dry Contact) Alarm Outputs Support For Temperature Sensors 6. Battery -Basic Parameters: Technology: Lifepo4 Nominal Voltage: 48 V (51.2 V Permissible) Capacity: Minimum 25Ah Automatic Cell Heating System When The Temperature Drops Below 5 Degrees C. -Operating Parameters: Number Of Cycles: Min. 3000 At Dod ≥80% Lifespan: Min. 10 Years Efficiency: ≥ 95% -Bms: Built-In Battery Management System Security: Ovp, Uvp, Ocp, Otp Cell Balancing Communication: Can / Rs485 / Modbus Integration With The Management System 7. Environmental Conditions Operating Temperature: –10°C To +45°C Humidity: 5–95% Possibility To Work In A Typical Telecommunications Environment (E.G. Suspended Cabinet On A Pole) 8. Installation Conditions (Case/Cabinet) Protection Level: Min. Ip55 Mounting: 19” Rack Anti-Burglary Protection Passive Or Active Cooling System 9. Security Agreed

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