REPAIR/REPLACEMENT OF EARTHING INFRASTRUCTURE ALONGWITH ALLIED WORKS AT AF STN HALWARA

Amount

M&L for checking of earth values of each earth pit on monthly basis/on periodcity/on demand/on any anomaly observed of any type of earth pit by deploying skilled and trained personnel with calibrated testing equipments and T&P required for the same and recording the actual earthing test results achieved at site, watering with adequate quantity of water to earth pits from nearest available water point to achieve better results complete all as specified and directed Note : Quartely/half yearly/yearly calibration report of the testing equipment shall be submitted by the contractor. Adequate teams shold be provided by contractor to carryout the jobs to complete with in desired periodicity.

Taking down serviceable GI earth strip of any size for replacement of wornout/unserviceable stud insulators and refixing including providing new porcealian/plastic insulators of suitable size with screws/nuts, bolts and washers and welding/brazing of joints/broken points etc complete all as specified.

Taking down serviceable aluminium earth strip of any size for replacement of wornout/unserviceable stud insulators and refixing including providing new porcealian/plastic insulators of suitable size with screws/nuts, bolts and washers and welding/brazing of joints/broken points etc complete all as specified.

Taking down serviceable copper earth strip of any size for replacement of wornout/unserviceable stud insulators and refixing including providing new porcealian/plastic insulators of suitable size with screws/nuts, bolts and washers and welding/brazing of joints/broken points etc complete all as specified

S&F in repair air termination, single pointed copper rod 12mm dia and 300mm long for lighting conductor complete all as directed.

S&F in repair aluminium strip 25x3.15mm with porcealian shaddles and fixing screws for roof conductors and down conductors and welding/brazing of joints above ground complete all as directed.

S&F in repair copper strip 20x3.15mm with porcealian shaddles and fixing screws for roof conductors and down conductors and welding/brazing of joints above ground complete all as directed.

S&F in repair copper strip 32x6mm with porcealian shaddles and fixing screws for roof conductors and down conductors and welding/brazing of joints above ground complete all as directed.

S&F in repair test point terminal block made of gun metal or phosphorus bronze of size 75x75x25mm drilled and screwed including 3 Nos 8mm dia 25mm long hex head screws for lighting conductor complete all as specified.

S&F in repair galvanised iron strip 32x6mm with porcealian shaddles and fixing screws for roof conductors and screwed including 3 Nos, 8mm dia 25mm long hex head scews for lighting conductor complete all as specified.

M&L in repair earthing complete with galavanised steel plate electrode 600x600x6.3mm thick burried directly in ground vertically (earth plate to a depth of not less than2.25 meter deep below ground level) with the top edge of earth plate at a depth of not less than 1.5 meter below normal ground level connected to GI strip 32x6mm by means of bolts, nuts, washers of galvanised iron and provision of earth wire, galvanised iron protection pipe 40mm bore, light grade up to and including test point including necessary earth work in any type of soild and PCC (1:3:6) type C1 (using 20mm graded stone aggregate) earth chamber, watering pipe 20mm dia galvanised iron light grade with funnel, RCC (1:2:4) type B1 precast cover 40mm thick with 6mm dia mild steel bars complete all as shown in electrical plate N.5 of SSR part-I connected to earthing test point all as specified or indicated,including taking down and testing on completion Note:- Quoted rate deemed to include the cost of excavation and earth work, PCC pit, funnel and cover etc,

M&L in repair earthing complete with copper plate electrode 600x600x3.15mm thick burried directly in ground vertically (earth plate to a depth of not less than2.25 meter deep below ground level) with the top edge of earth plate at a depth of not less than 1.5 meter below normal ground level connected to copper strip 20x3mm by means of bolts, nuts, washers of galvanised iron and provision of earth wire, galvanised iron protection pipe 40mm bore, light grade up to and including test point including necessary earth work in any type of soild and PCC (1:3:6) type C1 (using 20mm graded stone aggregate) earth chamber, watering pipe 20mm dia galvanised iron light grade with funnel, RCC (1:2:4) type B1 precast cover 40mm thick with 6mm dia mild steel bars complete all as shown in electrical plate N.5 of SSR part-I connected to earthing test point all as specified or indicated,including taking down and testing on completion Note:- Quoted rate deemed to include the cost of excavation and earth work, PCC pit, funnel and cover etc,

M& for surface dressing not exc 15cm deep of earth pit surrounding area upto 1.5 Mtr away on all sides and complete earth pit, funnel etc of earth pit chamber including by cutting and cleaning away grass, bushes, small plant, vegetable shrubs, bushes of under roots etc and depositing waste to nearby garbage bin complete all as specified and directed.

Dismantling the existing unserviceable earth pit and M&L for constructing earth pit chamber with 120mm thick walls in PCC 1:3:6 type C1 of size 300x300mm (internal size)x250mm deep with 150mm thick foundation of size 690x690mm using PCC 1:4:8 type D2, 15mm thick internal plaster, RCC (1:2:4) type B1 precast cover of size 540x540x40mm thick with 6mm dia 150mm C/C mild steel bars with lifting handles 02 Nos with 8mm dia MS bar complete including marking of earth pit details all as specified and directed.

M&L for repair and renewal of earthing complete including excavation, earth work, taking down of existing earthing plate and earth lead connection. Cleaning the earth plate, provision of earth lead connection with and including GI nuts bolts and washers, Layers of charcoal and salt as per plate No 5 of SSR part I, and precast PCC (1:3:6) type C1 (using 20mm graded stone aggregate) earth chamber and RCC (1:2:4) type B1 precast cover 40mm thick with 6mm dia mild steel bars all as specified and as directed by Engr -in-Charge and testing on completion and result of earthing should be submitted ro Engr-in-Charge in prescribed format. Note : Watering pipe , protection pipe and funnel shall be measured and paid separately

M&L for protection of earthing lead with galvanised steel tubing 40 mm bore light grade with all fittings in earthing including taking down unserviceable pipes complete all as specified and directed.

M&L for watering pipe for eathing as per plate No 5 of SSR part I with galvanised steel tubing 20 mm bore light grade with all fitting including taking down of old steel tubing complete all as specified and directed.

S&F funnel made out of GI/mild steel sheet 3 mm thick in conical shape, dia of the funnel at bottom is 15 mm and at top is 75 mm, placed on GI pipe for watering the earth including taking out existing funnel complete all as specified and directed.

M&L in replacement ASHLOK'S Safe Earthing Electrode │ ASEEL 393 CP 250 │ Conceptualised & Developed using ASHLOK'S Pipe - In - Pipe Technology │ Designed & Manufactured using M.S Pipes │ Outer Dia is 76 mm with a wall thickness of 1.6 mm │ Inner Dia is 42 mm with a wall thickness of 2.6 mm │ Over all Length is 3000 mm │External Corrosion Protection : Coper Paleted (250+ microns) │ Internal Corrosion Protection : A groundbreaking corrosion resistant Crystalline Conductive Compund is filled and compacted in the cavity within the pipes to enhance the electrodes performance. │ Conforms to IS : 3043 - 1987 i.e., Code of Practice For Earthing │ (Tolerance : Dia: ± ı.o mm Wall │ Thickness: ± 0.2 mm │ Length: ± 20 mm). BARON'S Back Fill Compound(s) │CONDUCTOLITE │Conceptualised & Developed by BARON's R & D Centre │ Manufactured using Eco - Friendly minerals │Carbon based, high conductive material │Resistivity : < 0.5 ohm-metre (In dry conditions) │Resistivity is not moisture dependant │Ph Value : 6.5 - 8.0 │Electronic & Ionic conduction │Less susceptible to shrinkage │Maintenance Free │Excellent bonding properties │Enhances electrode size │It helps to improve the conductivity of the soil to aid in faster current dissipation while at the same time having hygroscpic & corrosion resistive properties. │Packing Size : 25 kilograms │ Recommended for harsh conditions incl Poly Plastic Eartpit Chamber Cover Heavy Duty (8 ton Capacity) including laying of copper strip from earth pit to testing point and testing point to equipment alongwith necessary bracing copper rod with copper strip and providing with suitable size of GI pipe from earth pit to test point and test point to equipment complete all as specified and as directed. Note : (a) GI pipe will be measured and paid seperately under respective items of BOQ. However rates for complete bracing material for bracing of earthing electrode with copper stip is deemded to be included in the quoted rates. (b) Earth test value required below 1 ohms, if result on testing not found satisfactorily, the contractor will provide extra material free of cost to achieve the earth value less than 1 ohm.

Supply, fixing, commissioning and testing in replacement of Early Streamer Emission (ESE)-Lightening arrrestor (Protection) system (Bakiral) and accessories, NFC 17-102 UNE 21186 standard certified and CPRI tested complete 01 No with the following components :- (a) Lightening and strike counter of Bakiral 01 No (b) GI mounting mast - 05 meter (c) 70 sqmm mutistranded copper down conductor and accessories - 10 Meters (d) Cu bonded steel rod 3 meter long 17mm dia 250 micron copper bvonded, having a pointed tip at the bottom. Rods are UL listed and CPRI tested - 05 Nos (e) Clamp head assembly, welded, copper bonded, connection clamp having provision to connecte extgernal cables & GI strip including hardwares SS 4 set (Each set consisting of 1 No Hex Bolt - M10x50 fully threaded, 2 Nos nuts, 02 Nos washers, 2mmx25/14 duly fixed on clamp - 05 Nos (f) LOHM maintenance free earthing, Environmental friendly, Mineral compounds semi soluble non corrosive, conductivity improving material of approved branch (LHOM) 30 kg Model No LOHM BF-30 (NABL approved) - 05 Nos (g) Poly plastic HDPE earth pit chamber heavy duty weather proof environmental free with cover size abount 254mm dia & bottom dia 330mm x height 260mm, heavy duty of 7200 Kgs load capacity - 05 Nos (h) Copper strip 25x3mm for inter connection of earh pits including exothermic welding - 20 meters complete all as specified and directed. Note : Earth test value required below 1 ohms, if tests not found satisfactorily, the contractor will provide extra material free of cost required to achieve earth value less than 1 ohm.

YANSHIKA SECURITY SERVICES

M/s Kataria Construction Company

JASSI TRADERS

Bidder Name

CHOUDHARY ENTERPRISES