PROVISION OF BOREWELL AT 119 INF BN (TA) ASSAM AND PROVN OF SECURITY LIGHTS WITH ACCESSORIES AT MH SHILLONG UNDER GE SHILLONG

Amount

Trial bore hole of 200mm dia with DTH or reverse rotary circular/direct circulation method or combined in both the processes as per site reqmt in any kind of soil strate including lifting and borning devise and casing pipe etc complete all as specified and directed 0 to 150 mtr depth from ground level (Note : Total 01 Nos point shall be given for trial holes one by one until the suitable stratea and yieldis achieved) including providing PCC exover on unb used bore hole/trial bore hole complete all as per directed by Engr-in-Charge.

Drilling the suitable bore with DTH or reverse rotary circulation or direct circulation method or combination of both by using power rig (preferably with DTH rig) for any kind of soil, boulders as per the method recommended in survery report and the nature of strata under ground from GL upto a depth of 150 mtr BGL through any type of soil/rock/any other formation as per following depth suitable for 200mm dia assembly or pipes incoluding collection of soil strata sample after every one mtr after 30 mtr depth BGL.

From GL upto a depth of 50 mtr BGL

From 50 mtr BGL upto 100 mtr BGL

From 100 mtr BGL upto 150 mtr BGL

Note : FOR ITEM NO 2 ABOVE (a) Depending upon the nature of strata encountered and availability of fractures in the strata to allow percolation of water. If drilling beyond, 150 mtr is reqd the same shall be carried out with written approval of the Engr-in-Charge. (b) The rate for drilling beyond 150 mtrs will be considered the same as in item No 5 above (i) Geo-physical logging of the bore holes under Srl No 3 to 5 to be done after completion of drilling but before lowering the housing pipe etc (ii) Strata samples to be collected during drillong and preserved in PVC container mentioning details for analysis and preparation of lithologic log (iii) Depth of the bore shall be decided by the Engr-in-Charge/AGE which will be final and binding. (c) (i) No extra payment is involved to cutting of small boulder, hard rock boulder etc if any bore upto drilling of 50 mtrs from the GL. (ii) Cost of yield test and verticallity testing, watering testing shall be demand to be included in the cost of drilling.

Supply and lowering 50m bore flanged type long heavy duty MS column pipe jointing with bolts nuts,washers, gubber gaskits incl making/cutting grove at flanged complete all as specified and as directed. Make : Tata/Zindal/Bansal

Supply and packing pea size washed gravels surrounding between assembley pipes and bore holes top to bottom using 3mm size gravel complete all as specified and directed.

Supply and lowering eage type strainer LCG (lower carbon galvanised) 7.0 mm thick confirming to IS 8110, 20mm dia size 09f slot 1 x 4.95 mm wall thickness 7 mm and welded with MS pipe and heavy duty collar and welded centre guide MS flat iron 20 x 6 mm as complete all as specified and directed by Engr-in-Charge.

Supply, Lowering, Assembling & fixing in position ERW duty mild steel casing pipe 150 mm dia bore, 6.0 mm wall thickness, plain ended duly weld butt joint with heavy duty collar and 20x6.0mm Mild Steel Flat Iron Centre Glide ( 4 No in Each joint), complete all as specified and as directed.

Supply, Lowering, Assembling & fixing in position ERW duty mild steel casing pipe 200 mm dia bore, 6.0 mm wall thickness, plain ended duly weld butt joint with heavy duty collar and 20x6.0mm Mild Steel Flat Iron Centre Glide ( 4 No in Each joint), complete all as specified and as directed.

Development of tube wells with air compressor of suitable capacity till sand/mud free water of potable quality is obtained and to achieve mimimum discarging capacity of 10,000 GPH, (Hire charges of Compressor with accessories and fuel reqd for developement of tube well incl tplt to work site shall be deemed to be included in the unit rate quoted by the contractor) complete all as specified and as directed.

Supply and fixing pressure guage 50 mm dia size 0 to 20 Kg/Cm2 complete all as splecified and directed. Make - FILBIG/GURU

S&F cap suitable for 250mm bore pipe in two parts made out of mild steel plate folr covering tube well duly welded with locking arrangement including making holes for passing 16 Sqmm 3 core flat submersible cable complete all as specified and directed by Engr-in-Charge

Supply and fix mild steel clamp for holding 80 mm bore column pipe bent to shape as required including drilling holes and provision of bolts, nuts and washers complete all as specified and directed (Note : Clamp shall be made out of 700 mm long MS flat iron of size 150 x 10 mm thick.

M & L for sample box made out of wood for sample received from different strata during digging at interval of 5.0 mtrs. Complete all as slpecified and as directed

M & L for tesing of borewell water for minimum acceptable quantity of discharge 2800 GPH at 150 mtrs head by doing contineous pumpong of water upto 8 hrs to determine actual pumping yield of lthe borewell through yield test by V-notch method or any other method available complete all as specified and directed

M & L Pipe 100 mm bore steel water tubing medium grade galvanised with all fitting and laid in trenches complete all as specified and directed by Engr-in-Charge.

S & L Submersible cable 10 Sqmm 3 core, Flat with stranded copper conductor, PVC insulated and PVC sheathed 1100 Volts grade, Complete all as specified and as directed.

Material & Laying trenches or fixing/passing through pipe including jointing and testing of PVC/XLPE insulated and PVC sheathed armoured electric cable (heavy duty) with aluminium conductors 1100 volts grade conforming to IS 7098 Part-I cross sectional area 50 sqmm 4 core complete all as slpecified and directed

S&F sluice valve with SS spindle double flange conforming to ISI 14846 both ends flanged class PN 1.0 size 100 mm dia incl necessary nuts, bolts, washer and gasket complete all as specified and directed by Engr-in-Charge. Make : LEADER/L&T/BIR/ UPADHYA/RMCO/KIRLOSKAR

S&F valve reflux (NRV) confirming to IS 14845 screwed both ends meant for horizontal pipes chromium S/S parts of size 100mm bore complete all as specified and directed. Make : LEADER/L&T/BIR/UPADHYA/RMCO/KIRLOSKAR

S&F cast iron air release valve double acting including jointing materials such as gaskets, nuts and bolts complete double air outlet of size 100 mm dia complete all as specified and directed by Engr-in-Charge Make : LEADER/BIR/UPADHYA/KIRLOSKAR

Construction of stone/PCC block/brick masonry valve pit size 900mm x 900mm x 900 mm (internal dimension) complete with MS angle iron frame work (angle size 40 x 40 x 6mm) 3 mm thick MS Sheet top cover, openable through hinges incl necessary locking arrangement rendering CM 1:4 and painting steel surfaces with two coats of bituminous paint inside and on exposed surfaces complete all as shown in Drg No TD/EM/6 Sht 1/2 & 2/2 and as specified

Supply, install, lowring, testing and commissioning of submersible pumping set not less than 10 HP capacity electrically driven with supply voltage of 415 Volts 50 Cycles with discharge capacity 120 LPM at 117 mtrs head of outlet of suitable size including splriing loaded SS suction straniner and connected with coloumn pipe complete all as specified and directed. Make : KSB/Calama/Crompton Greaves NOTE : Column pipe of 80 mm bore shall be connected with submersible pump without any extra cost to the contractor

M&L for carrying out Electo Logging test of the drilled Bore Hole upto the depth of pilot Bore Hole below ground level and submission of the log report in Triplicate, Complete all as specified and as directed

M&L for Earthing complete with galvanised iron earth plate electrode 600 x 600 x 6mm thick , burried directly in ground vertically to deplth not less than 2.25 metres below ground level with top edge of the plate at a depth of not less than 1.5 metres below the ground level, connected to galvanised iron strip of 32 x 6 mm earth lead by means of by means of bolts and nuts , check nuts and washers made of galvanised steel, earth strip protected by and including GI pipe 40 mm bore (light grade) and connected to main test point as directed and including concrete pit using PCC (1:3:6) Type C1, precast RCC (1:1:5:3) Type A1 cover slab of size 40 x 40 x 5 cm reinforced with 8 mm dia MS bar @ 150 mm C/C both ways with one handle for lifting, made out of 8 mm dia MS bar embedded in pre-cast cover slab, funnel, wire mesh, 20mm bore galvanised or steel pipe (Light grade) for waterring, charcoal and salt in alternate layers including necessary excavation and earth work in any type of soil complete all as specified and as directed.

Excavation in trenches not exc 1.5 m wde and 1.5 m deep for taking out/laying of UG cable/GI pipe of any dismeter in soft/loose soil and getting out complete all as specified and directed

Returning and filling including spreadking levelling watering and well ramming in layers not exc 25 cm thick soft/loose soil complete all as specified and directed

Removing excavated material at a distance n exc 50m and deposited where directed at a level not exc 1.5 above the starting point for soft/lose soil complete all as specified and directed

M & L for sand filing in treances for providing sand cushion for protection of UG cable complete all as specified and directed.

Supply and laying of sub class B bricks locally available alying perpendicular of UG cable complete all as specified and directed.

Supply and fixing LED street light fitting 90 Watt 230 V AC outdoor type with high pressure die cast aluminum hosing and heat resistant complete with driver, lamp, suitable size bracket, nuts, bolts, washers, clamps with impact and corrosion resistant including thermal management in multiple optics complete with IP 65/66 protection complete all as specified and directed.

Supply, laying & testing cable XLPE insulated PVC inner sheathed, armoured with galvanized steel strip or wire heavy duty underground with stranded aluminum conductor 10 sqmm 4 Core 1100 Volts grade laid in trenches / duct passing through pipe / duct or fixed on pole and connecting and testing complete all as specified and directed.

Supply and fixing factory made IP-65 (Dust and power jet Proof according to IEC 60529) opaque street light junction box of size 260 mm x 210 mm x 116mm made of high quality polycarbonate (shock proof, rust free, corrosion free acid and chemical resistant, fire retardant having high impact (IK 08) totally insulated made of halogen and silica free recyclable material, UV resistant having high grade gasket made of polyurethane with copper terminal , MCB SP 6 Amps rating 10 KA with locking arrangement and 2 Nos M40 size cable gland and one M32 size gland suitable up to 35 Sqmm cable etc complete all as specified and directed. Make : HENSEL Cat No K-8350 or equivalent in Sintex .

Supply and fixing PVC Insulated and sheathed three core Heavy duty cables 1100 volts 03 core having multi stranded aluminium conductor service cable size 4 sqmm complete all as specified and directed.

Boring of holes under road , pavement, hard standing by trenchless technology using ultra sounding technique and necessary machine including HDPE pipe of 150 mm dia suitable for 0.4 mpa working pressure complete all as specified and directed.

Material and labour for earthing complete with galvanised steel earth plate electrode 60 Cm X 60 Cm X 6 mm buried directly in ground vertically to a depth notless than 2.25 mtr deep below ground level with top edge of earth plate at a depth not less than 1.5 m below normal ground level connected to galvanised earth lead wire 32 x 6 mm GI Strip by means of bolts, check nuts and washers ,galvanised steel and protected by GI pipe 40 mm bore light grade & connected to main switch board or main control board as directed and including concrete pit in PCC (1:3:6) type C1, precast RCC (1:2:4) type B1 cover slab 30 cm X 30 cmX 5 cm with 10mm dia TMT bars 8 cm C/c both ways and one handle for lifting made out of 8 mm dia TMT bar, funnel, wire mesh, 20mm bore galvanised iron pipe (medium grade) for watering, charcoal or coke and salt in alternative layers, necessary excavation and earth work in any type of soil and including necessary testing complete all as shown in Electrical Plate No 3 of SSR part -I.

Supply and fix time switches astro type (Having longitude and latitude of Indian cities in memory) 250 V single phase of 20 Amp rating with contactor, MCBs, with complete wiring including steel metal enclosure of 3 mm thick plates size 60cm x 60cm x 20cm fixing on the pole with clamps, nuts, bolts and washers etc all as specified and as directed

M & L for providing dry river sand as in sand cushioning to UG cable including punning gently complete all as specified and directed.

Supply and fixing GI Tube light grade of size 40 mm with all fittings and fixed complete to walls, poles and ceiling or laid in floor for cable crossing complete all as specified and directed.

M & L for cement concrete (1:3:6) type C-1 using 40 mm graded stone aggregate as in necessary foundation work and finishing exposed faces of concrete even and smooth without extra cement all as specified and directed.

M/s Hussain & Bros