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| 1 | S&F in repair Air termination, single pointed, copper rod 12mm dia and 300mm long all as specified and directed by Engr in charge. |
| 2 | S&F in repair Air termination, single pointed, aluminium rod 12mm dia and 300mm long all as specified and directed by Engr in charge |
| 3 | S&F in repair Lightning Strike Counter To protect the systems against the transient overvoltage (lightning) Digital Type With Li Battery Backup complete all as specified. |
| 4 | S&F in repair copper Flat Air Rod Saddle to air support air rod on flat roof surfaces. |
| 5 | S&F in repair Earthing Display board made up of FRP material having size of 200 mm x 150 mm x 3 mm withfollowing details. It should free standing with suitable mounting stand.(1) Name of Manufacturer/ Trade Name / Supplier (2) PO NO: (3) Feeder Name (4) Earth Pit No(5) Drawing No (6) Length Of Electrode in mm (7) Date of Installation (8) Resistance value in Ohm on Installation date (9) Soil Resistivity in Ohm-Meter |
| 6 | S&F in repair FRP Earth Pit with cover of size 380 mmx380 mmx 214 mm to absorb of 5000 Kg complete all as specified and directed. |
| 7 | M & L for GI tubing, light grade 40mm , galvanised with all fittings complete fixed too wall, floor & under ground complete all as specified and directed. |
| 8 | S&F in repair Copper Strip 20x3 mm with saddles and fixing screws etc for roof conductors and down conductors above ground to interconnect the earth pit, to interconnect the earth pit to Equipment Room/ LT panel. Bus bar, DG set complete all as specified and directed. |
| 9 | S&F in repair Aluminium strip of 25 x 3mm, ISI Marked to interconnect the earth pit to LT Pannel, Bus bar complete all as specified. |
| 10 | S&F in repair test point terminal block made of gun metal or phosphorus bronze size 75x75x25mm drilled and screwed including 3 Nos. 8mm dia 25mm long hex. head screw all as directed. |
| 11 | S&F in repair for PCC earthing pit complete with RCC cover 50 mm thick, 4 mm dia galvanised wire, mesh, funnel size as per electrical plate No 3. |
| 12 | Fixing arrangement of lightening arrester , welding materials & labour at roof top where required complete all as specified and directed . |
| 13 | M&L in repair Maintenance free chemical earthing system complete with 01 (One) Nos. UL 467 approved copper bonded earth rods 17mm dia. 3000mm long electrode buried in ground to bore holes 100mm dia vertically to a depth not less than 3.00 Mtr deep below ground level with top edge earth electrode at a depth not less than 300 mm below normal ground level, provision of copper bus bar of size 100mmX25mmX5mm for inter connection with copper earth lead strip 25mmX2mm and further connected to test point terminal block of size 200mmX50mmX6mm made of copper as directed, including 45 Kg (Minimum) NABL Lab Certified back fill chemical compound for filling bore holes with soil mixed, so as to achieve earth resistance below 2 Ohms including excavation and earth work and earth neutral voltage less than 03 Volts of PCC chamber in PCC (1:3:6) typeC-1 (using 20mm graded stone aggregate) with Pit cover of 300mmX300mm made of Cast Iron complete all as specified. |
| 14 | M&L in repair Earthing complete with copper plate electrode 600x600x3.15mm thick electrode buried directly in ground not less than 3.0 mtr deep below normal ground level with top edge of earth plate not less than 2.5 mtr below normal ground level connected to and including and 20x3 mm copper strip as earth lead by means of bolt ,nuts, check nuts, and washers of stainless steel and duly welded incl PCC pit in PCC 1:2:4 type B-I angle iron 40x40x3mm frame, pit in PCC 1:2:4 type B-I cover 40mm reinforced with XPM weight not less than 4 Kg/Sqm and 6mm dia bar handle, excavation and earth work in any type of soil, charcoal dust and salt light grade GI watering pipe 20mm bore with funnel and wire mash and medium grade GI protection pipe 40mm bore and earth wire up all as shown in electrical plate No 3 of MES SSR- Part-I all as directed and specified by Engineer-in-charge. Note : Excavation work should be done by manpower only. ( Earth test should be done by contractor and if required result is not found entire earthing should by contractor again) |
| 15 | Supply and erecting , in truly vertical position Steel tubular swaged pole with cast iron base plate finial tapper plug, bolts nuts and screws and specified type 410 SP-31 ( 9 mtr long) in truly vertical position 1.5 m length of pole above ground level shall be painted with two coats of synthetic enamel paint in strips of 30 cm width, black and yellow alternatively and painting with two coats of aluminium paint over a coat of red oxide primer on rest part of pole and its connected parts complete all as specified.( Note -Excavation and PCC shall be measured and paid separately ) |
| 16 | Excavating in trenches not exec 1.5 m wide and not exec 1.5 m in depth for foundation, etc line etc not exec 10 sqm on plane and getting out in hard /dense soil |
| 17 | Excavating in trenches not exec 1.5 m wide and exec 1.5 m but not 3 m in depth for foundation etc not exec 10 sqm on plane and getting out in hard /dense soil. |
| 18 | Removing excavated material (soils) not exec 50 m and depositing where directed at a level not exec 1.5 m above the starting point. |
| 19 | M & L for cement concrete in foundations, fillings and mass concrete, of type C2 1:3:6 40 mm graded stone aggregate (Middle strength) |
| 20 | M & L for cement concrete in foundations, fillings and mass concrete, of type B2 1:2:4 40 mm graded stone aggregate(Coping) |
| 21 | M & L for cement concrete in foundations, fillings and mass concrete, of type B2 1:4:8 40 mm graded stone aggregate(Foundation) Please Enable Macros to View BoQ information |
