Providing 150mm Dia Borewell Arrangements At NVN School In Kumbakonam City Municipal Corporation

Amount

Drilling of Borewells anywhere in Tamilnadu including transportation from one place to another with in Tamilnadu in alluvial soil sedimentary strata of clay and sand stone shale pebbles boulders etc. By first taking a pilot bore of 150mm dia and then enlarging to 300mm dia bore by direct or reverse rotary mud circulation method using rotary rigs fuel, labour and drilling benonite and water required for drilling at site. Site will be shown by the Departmental officers including construction of mud pit..upto 60m depth ending below ground level

Upto 60 mt. Depth ending below ground level

From 60 m upto 90 m Depth ending from ground level

Reaming 150mm dia pilot bore to 300mm dia bore as directed by the Departmental officers.

Upto 60 mt. Depth ending below ground level

From 60 m upto 90 m Depth ending from ground level

Supply of the following casing pipes of ISI approved quality with wall thickness not less than 7.5mm to 8.5mm with PVC couplers and cement Paste etc. Complete and including packing the annular space with pebbles quality and size of pebbles and the PVC pipe should be approved by the departmental officer.

150mm dia OD PVC Plain casing Pipe (CS)

150mm dia OD PVC slot casing Pipe (RS)

150mm dia OD PVC end cap

Labour charges for inserting150 mm dia OD PVC casing pipes assembly. (with slots and without slots) in the drilled hole including jointing the pipes with PVC couplers with cement paste including supplying and packing of pebbles in anular spaces as approved by the Asst.Exe.Engineer.

Charges for developing the borewell with air compressor of 600CFM. Capacity (minimum 8 hours ) including transportation labour and fuel charges for compressor as directed by the Departmental Officers and conducting yield test by 'V' notch methods.

supply and delivery of 1HP single phase Submersible pumpset of duty condition 15lpm x 100 m as per IS 8034 without panel board etc complete as per standard specification.

Supply of single phase Pannel board suitable for 2HP with two level guard and auto start etc complete as per standard specification.

Supplying and delivery of 2.5Sq.mm of PVC insulated and sheathed 3 core flat type copper cable confirming to IS694/ 1990 etc complete as per standard specification.

Labour charges for the errection of 1HP submersible pumpset in the Borewell including fixing and jointing submersible cable with proper clamps upto the starter to required depth and also fixing of riser pipes to the required depth walls errection clamps pressure gauges up to the exterior wall of pumping room and errection of panel board consisting of DPICN switches starter volt meter ammeter, Three Pilot ( Indicating ) lamps capacitor single phasing preventer water level guard and laying and jointing the cable s and twin earthing as per IE rules etc complete and testing to the pumpset and trial run for 10 Days.

Supply and run of 2 of 1.5 sqmm PVC insulated SC unsheathed Cu.Conductor of 1100V Grade on heavrar of 7/20 Gi wire for service conuction SD 65

Supply and fixing of 32A DP switch of 500V with metal clad with fuse and neutral (side handle) on suitable TW board with PWD earthing

Earthing as per P.W.D standard with an earth electrode of 2 Mtr. Class 'B' GI pipe of dia not less than 32mm complete with necessary masonry work SD 234

Supply and fixing of TNEB meter Board suitable for 32A Single Phase service connection with 32A Fuse unit (500V) 32A neutral link and earth link (1" x 1/8" Copper flat) on TW plank of size 375mm x 300mm x 19mm with supporting TW reepers of 1" thick an either side with painting with suitable bolt and nuts for fixing the TW plank on wall with earth connection and inter connection with 7/20 PVC insulated copper wire from EB meter to fuse unit. SD 125

Supplying and fixing of pvc pipe and accessories ISI make including cutting and threading cost and conveyance of all charges etc complete as per standard specification.

50mm upvc pipe

50mm pvc Elbow

Sabareesan (BID ID -1202416)