PROVISION OF BOREWELL FOR AUGMENTATION OF WATER SUPPLY OF NO 1 TRG BN AT MILITARY FARM AREA OF ASC CENTRE NORTH ATC UNDER GE CENTRAL BANGALORE

Amount

M&L for drilling of borehole through any kind of soil, boulders, rocks etc. for minimum 175 mm bore casing pipe as required at site for a depth upto 35 mtrs from ground level including disposal of spoil from the site of work complete all as specified & as directed.

All as per Item Sl No 01 but for depth exceeding 35 mtrs & upto 70 mtrs below ground level complete.

Electro logging of bore for precise delineation of granular zones & also the quality of ground water including report interpretation complete all as specified & as directed. NOTE:- Electric logging shall be carried out by/through an approved Govt Agency.

Supplying and assembling including jointing, lowering & fixing in position ERW casing pipe fine cut of internal dia 175 mm bore of thickness 5.40 mm confirming to IS 4270-2001 (ISI marked) including jointing of pipe by necessary electric arc welding both sides. The pipe shall be duly painted with anti-corrosive paint suitable for drinking water purpose complete all as specified & as directed. MAKE : TATA/JINDAL/PRAKASH

Supplying and lowering PVC slotted pipes of nominal size 150mm, 6kg/sqcm pressure bearing ISI marked all as directed . MAKE : - Supreme/Prince/Finolex as approved by GE.

Supply and fixing well cap suitable for 175 mm bore housing pipe made out of 6 mm thick steel plate complete all as specified and directed. NOTE : After completion of the work well cap will be used to keep the bore well closed until the submersible pumping set is installed.

M&L for development of tube well with air compressor of suitable capacity till sand/mud free water of potable quality is obtained (Compressor with accessories & tube etc. shall be arranged by the contractor) complete all as specified & as directed.

Yield test for the bore well by continuous pumping for 8 hours to determine safe pumping yield. NOTE :- Yield test of bore well shall be carried out in the presence of rep of Accepting Officer.

Supply only strata sample box with glass cover 3mm thick having internal dimension 1000x600x100mm made out of 20mm thick wrought Ist class hard wood shisham with hinges, hasp and staple including polishing complete with samples at various depth evenly 2 mtr interval met in boring including strata chart in duplicate to be submitted all as directed and specified.

M&L for sanitary sealing of tube well with PCC (1:2:4) type B1 of suitable size using 20 mm graded aggregate complete all as specified and as directed.

Collection of water from bore well and doing testing at/from approved Govt lab for potability by doing chemical and bacteriological analysis as per norms of WHO and submission of test reports to the entire satisfaction of Engineer-in-Charge.

Supply, lowering, jointing & testing GI heavy grade column pipe 50 mm bore both ends threaded, ISI Marked with heavy duty socket . MAKE : TATA/JINDAL/PRAKASH

S&F flat submersible cable 3 core multi stranded copper conductor PVC insulated, water proof, ISI marked of size 6 sqmm for connecting from starter to bore well submersible pump sets complete all as specified and as directed. MAKE : FINOLEX/HAVELLS/RR KABEL

Supply and fixing steel rope flexible 10 mm dia with GI clamps, nuts, bolts, washer etc for fixing of submersible pump set complete all as specified & as directed.

S&F mild steel clamp suitable for 50 mm dia column pipe made out of 12 mm thick MS plate fabricated to shape, including drilling holes, nuts, bolts, washers etc complete all as specified & as directed.

M&L for earthing complete with galvanized steel earth plate electrode 600 x 600 x 6.3 mm thick burried directly in ground (in vertical position) earth pit not less than 2.25 mtr below normal ground level with the top edge of the earth plate not less than 1.5 mtr (B.G.L.) and connected to galvanized iron earth strip 32 x 6 mm by means of bolts, nuts, check nuts, and washer of galvanized iron including PCC (1:2:4) type B1 precast RCC cover slab with suitable handle made of 8 mm dia round bar, including necessary excavation and earth work in any type of soil, 20 mm dia med grade galvanized steel tube for watering with one end fixed with cast iron funnel and wire mesh, 40 mm bore light grade galvanized steel tubing for drawing earth lead GI strip protection & common salt, charcoal in alternate layers etc. complete all as shown in EP No 3 of SSR Part 1 and testing on completion complete.

Supply, jointing, testing and laying in trenches / floor /wall etc pipes galvanised iron "Medium grade" ISI marked with all running fittings of size 50 mm bore complete all as specified and as directed. MAKE : JINDAL/TATA/PRAKASH

Supply, jointing, testing and laying in trenches / floor /wall etc pipes galvanised iron "Medium grade" ISI marked with all running fittings of size 25 mm bore complete all as specified and as directed. MAKE : JINDAL/TATA/PRAKASH

Supply, install, testing & commissioning of gun metal globe or gate valve 50 mm dia, ISI marked with iron wheel head, screwed both ends for iron pipe including all necessary accessories complete all as specified and as directed. MAKE : KIRLOSKAR/LEADER/ZOLOTO.

All as per item No 20 here-in-before but 25 mm bore complete. MAKE : KIRLOSKAR/LEADER/ ZOLOTO.

Supply, install, testing and commissioning of multi stage submersible pump set with bronze impeller, directly coupled with motor, suitable for 150mm bore slotted PVC pipes yeild operated on AC 3 phase, voltage range 300V-440V, 50 Hz. The motor casing shall be of stainless steel, pump shaft / motor shaft shall be of stainless steel, pump bowls shall be of high graded cast iron complete all as specified and directed. The pump and motor shall comply to all the requirements of relevant IS. Note: -Pump capacity shall be finalized after boring work. Make of pump & motor :- Kirloskar / KSB/CG/CALAMA.

Supply and laying, jointing & testing cable XLPE insulated, armoured and PVC sheathed LT 1100 volts grade and aluminum conductor confirming to IS 7098 Part - I 1988 laid in trenches/through pipe/floor/fixed wall etc complete all as specified and directed for size of cables 25 Sqmm 3½ core. Note: Excavation, earth work, sand cushioning, cable cover, returning/filling will be measured & paid seperately.

Excavation in trenches n.exc 1.5m wide and n.exc 1.5m in depth for laying of UG cable, DI/GI pipes of any sizes in soft/ loose soil complete all as specified & as directed.

Returning, filling in including spreading, levelling, watering and well ramming in layers n.exc 25cm thick complete all as specified & as directed.

Removing of surplus soil to a distance n.exc 50m and depositing where directed at a level n.exc 1.5m above the starting point complete all as specified & as directed.

M & L for Sand cushioning and covering with clean dry sand in trenches for protection of under ground cables (below, above and around the cable laid in trenches) complete all as specified and directed. (Note: Thickness after punning down shall be measured for payment whose thickness shall not be less than 18cm)

Supply and lay common burnt(Kiln burnt) locally available best quality brick laid at right angle on the cable in trenches for cable protection complete all as directed by Engr-in-charge.

Supply, laying, 80mm bore, Steel water tubing, galvanised, light grade with all fittings and fixtures for cable protection on road/drain/floor or etc including providing MS clamp, bolt, nuts, painting complete all as specified and directed.

RAINBOW ELECTRICALS

B5BUILDING SOLUTIONS