Provision Of 11 Kv Rmu At Bkt , Supply , Installation , Testing And Commissioning Of 11 Kv ( E ) , 630 Amps , 21Ka For 3 Sec , Sf6 Insulated , Extensible Outdoor Type , Rmu ( Ring Main Unit ) 4-Way Comprising Of 1 No 630 Amps , Motorised Load Break Switches ( Comprising One No . Incomers ) & 3 Nos . Load Break Switch ( Lbs ) As Outgoing , Inside Robotically / Manully Welded Stainless Steel ( Non Ferrite Non Megnetic Grade ) Tank Having Min . Thickness 2 Mm Having Ip 67 Degree Of Protection . Rmu Should Be Provided With Copper Busbars Internal , External As Well As Earthing Busbars Should Be Of Copper Complete All As Specified And Comprising Of :- , ( A ) 1 No 630 Amp 21Ka Motorised Operated Load Break Switch With Built In Earth Swith As Incomming With:- ( I ) Mechanical Position Indicator ( On / Off / Earthed ) . ( Ii ) Ct With Ratio 50 / 1A , 2 . 5 Va , Cl-1 . 0 For Metering . ( Iii ) Fault Passage Indicator ( Iv ) Live Cable Indication ( V ) Cable Termination Bushing Suitable For 1 Run Size Upto 120 Sq Mm 3 Core Xlpe Cable ( Vi ) Cable Termination Cover Boots ( Push On Type ) ( B ) 3 No 630 Amp 21Ka Motorised Operated Load Break Switch With Built In Earth Swith As Outgoing With:- ( I ) Mechanical Position Indicator ( On / Off / Earthed ) . ( Ii ) Live Cable Indication ( Iii ) Cable Termination Bushing Suitable For 1 Run Size Upto 95 Sqmm 3 Core Xlpe Cable ( Iv ) Cable Termination Cover Boots ( Push On Type ) , ( C ) One No . Operationg Handle For Manual Operation . ( D ) Manometer With Green & Red Zone For Indicating Pressure Of Gas Inside The Tank Fitted On Rmu ( E ) Safety Interlocks Shall Be Provided As Per Relevant Iec / Is Standards And Manufacturers Directions . ( F ) Battery And Battery Charger 7 Ah , I / P 230 Volt , O / P 24 V Dc . ( G ) Pcc 1:2:4 . Type B1 Using 20 Mm Graded Aggregate For Foundation Of Rmu As Per Recommendations Of Manufacturers Of Directed By Eic . , Note : ( I ) Any Other Parts / Items Not Specified Above But Have Been Required Essential For Smooth And Safe Functioning Of The Rmu System Shall Be Deemed To Inclusive In Quoted Rate . ( Ii ) The Pre Commissioning Test Of Rmu Shall Be Carried Out In Presence Of Sei Before Completion Of The Work . ( Iii ) All Arrangements For Testing Shall Be Responsibilty Of The Contractor And The Cost Of T&P And Other Charges Deemed To Be Included In Quoted Unit Rates . Make: Abb / Siemens / Schneider / C&S , Supply And Laying Or Fixing Or Passing Through Pipe , Xlpe Insulated , Screened , Pvc Bedded , Galvanised Steel Wire Orstrip Armoured , Electric Power Cable ( Heavy Duty ) With Aluminium Conductor , 11000 Volts Grade Earthed 95 Sqmm 3 Core Nominal Cross Section Stranded Conductor Complete All As Specified And Directed . Note: - Excavation & Earth Work , Sand Cushioning , Bricks Protection & Gi Pipe Where Reqd . Shall Be Measured & Paid Separately . , Excavation In Trenches Not Exc 1 . 5 M In Depth And Not Exc 1 . 5 Mtr Wide Including Getting Out In Soft / Loose Soil For Laying Of Cable Complete All As Specified And As Directed . , Returning Filling In Including Leveling Spreading Watering And Well Ramming In Layers Not Exceeding 25 Cm Thick In Soft / Loose Soil Complete All As Specified And Directed . , Removing Of Surplus Soil To A Distance Not Exceeding 50 Mtr And Depositing Where Directed At A Level Not Exceeding 1 . 5 Mtr Above The Starting Point Complete All As Specified And As Directed . , Supply And Laying Dry , Course Sand As In Cushioning For Cable In Trenches , Laid To Uniform Thickness Of 23 Cm ( 15 Cm Over The Cable And 8 Cm Under The Cable ) And Gentaly Punned Down To 18 Cm Thickness Complete All As Specified And Directed . Note :- Sand Will Be Measured After Punning . , Supply And Laying Un-Reinforced Precast Concrete Cable Covers , Factory Made , Class-Hv , Type-1 , Flat , As Per Is 5820 , Of Size 450Mmx180mmx40mm Laid Dry Complete All As Specified And As Directed . , Supply And Fix Cable Jointing Kit For 11 Kv ( E ) Grade Cable For In Door Termination , Heat Shrink Type , Joint Complete With Jointing Material And Accessories Suitable For Xlpe , Armoured , Aluminum Conductor Cable Of Size 95 Sqmm 3 Core Complete All As Specified And Directed . , Supply And Fix Cable Jointing Kit For 11 Kv ( E ) Grade Cable For Outdoor Termination , Heat Shrink Type , Joint Complete With Jointing Material And Accessories Suitable For Xlpe , Armoured , Aluminium Conductor Cable Of Size 95 Sqmm 3 Core Complete All As Specified And Directed . , M&L For Earthing Complete With Galvanized Steel Earth Plate 600X600x6 Mm Thick Buried Directly In Ground ( Earth Pit Not Less Than 2 . 25 Mtr Deep Below Normal Ground Level ) With Top Edge Of Plate Not Less Than 1 . 5 Mtr Below Normal Ground Level Connected To Galvanized Iron Strip Size 32X6mm As Earthing Lead By Means Of Bolt , Nuts , Check Nuts And Washer Of Galvanized Iron Or Steel Besides Welding Of All Joints As Shown In Drawing And Including Excavation And Earth Work , G . I . Pipe Light Grade 40 Mm Bore For Protection Of G . I . Strip From Earth Electrode To And Including The Earth Test Point Of Galvanised Iron / Steel Of Size 75 X75x 25 Mm , Supplying And Laying Charcoal Dust , Common Salt Pcc 1:2:4 Type B-I Using 20 Mm Stone Aggregate For Chamber And Ms Angle Iron Frame 40X40x3mm And Rcc Cover 40 Mm Thick ( 1:2:4 ) Type Bi Using 20 Mm Graded Stone Aggregate Reinforced With 8 Mm Dia Tmt Bars @ 75 Mm C / C Both Ways With Ms Handle 12 Mm Dia , Round , Pgi Funnel And Wire Mesh , 20 Mm Dia Gi Pipe Light Grade For Watering All As Shown In Plate No 3 Of Ssr Part I Of 2009 And Connected To Earth Test Point Incl Testing Complete All As Specified And Directed . Note:- Cost Of Earthing Strip & Gi Pipe 40Mm Up To 7 . 5 M Shall Be Deemed To Included In Quoted Rates .
