Department Of Posts

Department Of Posts has published Supply , Installation And Commissioning Of Ht And Lt Pannels At Thdcil Complex Rishikesh , Supply , Installation , Testing And Commissioning Of Lt Panel Board ( To Be Connected And Integrate With Existing Panel ) As Per The Following Specificaton . The Panel Should Be Designed As Per The Latest Standard Iec 61439 . The Panel Should Have Busbar Clearance Of 25 Mm For Ph To Ph And 19 Mm For Ph To Neutral , Zero Stray Voltage Doors And Panels , Polyster Glass Support For Insulation . The Cable Alleys Should Be 300 Mm Wide And It Should Be Fitted With Hinged Door That Open Up To And Angle Of 95 Deg . The Provision Of Cable Entry Should Be From Bottom . The Ip Protection Of Panel Should Be Ip-42 For External And Ip2x For Internal With 3B As Form Of Sepration . The Panel Should Be Equiped With Suitable Size Of Ct And Display Meter For Vaf Measurement . Make Of Panel: L&T ( Ti ) , Siemens ( Sivcon ) , Schneider ( Prisma ) A . Incomer Acb 1Nos . 1 . 1250 A , Four Pole , 50 Ka , Mdo Type Air Circuit Breaker With Microprocessor Release Having Lsing Protection . The Breaker Should Have Common Height And Depth Across The Range And Must Have Arc Chute Interlocking For Saftey Of Operators . The Accessories Should Be Front Mounted And Have Tool-Less Fixing Of Voltmetric Release . The Display Of Complete Accessory Information About Acb Should Be At The Front Facia . The Acb Should Have Icu=100% Of Ics , Impulse Voltage 12 Kv , Icm=105Ka , Opening Time Of 40Ms . Make L&T , Siemens , SchneiderB . OutgoingThe Outgoing Feeder Should Consist Of Microprocessor Based Mccb With Inbuilt Earthfault Protection And Front Led Indication Of Overload , Shortcircuit And Earthfault . Make L&T , Siemens , Schneider . 1 . Mccb 4P , 36 Ka , 630 A , Microprocessor Release . 2 Nos . 2 . Mccb 4P , 36 Ka , 250 , Microprocessor Release . 6 Nos . , Supply , Installation , Testing And Commissioning Of Ht Panel ( To Be Connected And Integrate With Existing Panel ) Of Vcb Panel Consisting Of 2 Nos Of Outgoing Vcb Of Rating 800A , 12 Kv , Fault Level 26 . 3 Ka As Per Iec 62271-100 , Iec 62271-102 , 62271-200 . The Panel Should Be Draw Out Type And Readily To Extend On Both Side And Should Comply Following Specs . It Should Be Equipped With Suitable Size/Ratio Ct And Protection Should Be Provided By Mc61anx Relay . 1 . Nominal Current : 800 A2 . Short Time Current Rating : 26 . 3 Ka3 . Duration Of Short Circuit Withstand : 3 Sec . 4 . Making Capacity : 65 . 75 Ka5 . Impulse Withstand Voltage : 75Kvp6 . One Minute Power Frequency Withstand : 28Kv7 . Suitable For Operation Sequence : O-0 . 3 Sec-Co-3 Min-Co8 . Break Time : < 3 Cycles9 . Mechanical Life : > 10 , 000 Operations10 . Degree Of Protection : Ip4x. Last date of submission for this tender is 2020-04-16. This is a Circuit Breakers tender in Thdcil Rishikesh, Uttarakhand