tender for construction and commissioning of tubewell in desalsar mandlawtan. - construction of tube well up to 100 mtr. depth in all type of rocks by dth system & over burden to accommodate casing pipe of following sizes in all types of soils & over burden including lowering of casing pipes, (if required) excluding cost of casing pipes, as per is:2800 part 1: 1991 and is:2800 part ii: 1979 (both amended upto date) and technical specifications. the work would be completed after obtaining sand free water. the tube well should have a through out bore as per nominal dia of casing pipe. 200 mm dia 2 add 15% extra on above item (item no 2.4.1 to 2.4.2) for drilling depth beyond 100 mtr and upto 200 mtr from ground level, rate shall be japplicable for only extra depth beyond 100 mtr and up to 200 mtr. 3 add 30% extra on above item (item no 2.4.1 to |2.4.2) for drilling depth beyond 200 mtr and from ground level, rate shall be applicable for only extra depth beyond 200 mtr. 4 add 15% extra on above item (item no 2.4.1 to |2.4.4) for drilling, where strata is collapsible and |lowering of casing pipe is required. the work includes lowering of casing pipe, but excudign the cost of casing pipe. the rate shall be applicable for stretch of collapsible strata only. 5 supply of erw m.s. black casing pipe isi marked (is: 4270/2001) or amended up to date of following sizes 200 mm dia nb (thickness of pipe 5.4mm & 6 supply & fixing tube well cover of ms sheet &mm thick at top & smm thick 100mm wide shroud around the edge so as to form a cap on |the top end of casing pipe with gi nipple 4scm |long & two gi flanges at both ends in 80mm sizes passing through a hole in the centre of ms sheet. a 25 mm socket with end plug shall also be welded over top plate. a gi nipple having outside thread of size 1/2 (for installation pressure gauge) shall be provided & welded |with 80mm gl nipple near top plate nipple shall be provided with end plug. 200 mm dia 7 providing & lowering in tube well isi marked gi pipe medium duty (b class), steel tube as per is:1239 or amended up to date and zinc coating as per is 4736, threaded and double langed (welded) on both ends and two number 25x3mm ms flat welded on both ends etween pipe & flange, rubber washer & nut bolts etc. |complete in all respect. 65 mm dia 8 supply & installation of 3 phase isl marked |submersible motor pump set of three star or better rating of bee and as per is: 8034-2018 (pump) and is 9283-2013 (motor) or as amended up to date of approved make of |following duty condition with required accessories including making connection suitable for tube well/dcb. the job includes |lowering of motor pump, installation of complete fitting & accessories, jointing of electrical cables up to switch board, testing of submersible pump set and interconnection up |to water mains, complete in all respect.15 kw (20 hp) and adove, head up to 120mtr 9 supply & fixing of isi marked three core pvc |flat submersible cable as per is 694:1990 or amended up to date and conductor as per class 5 of is 8130:1980 including making connection etc. 3 core 10.0 sq.mm 10 supply & fixing xlpe insulated /pv.c. sheathed cabbe of i.1 kv grade with aluminium conductor armoured of is.7095-/1554-1 approved make in ground as per is.1255 incuding excavation of 30cmx75cm size trench, 25 cm thick under layer of sand, second class bricks covering. refilling earth, compaction of earth, making necessary connection, testing etc. as required of size. 30.0 sq.mm, 3.5 core 11 supply & fixing ms clamp set of sox6 mm flat from iron with nuts and bolts etc for holding the riser pipe assembly of submersible pump set. 12 supply and fixing of electric control feeder panel comprising of suitable rating mccb, fully automatic star-delta starter, over load relay, ampere meter with cts, volt meter, phase preventer, suitable starting capacitors, phase indicators, lighting arrangement etc complete suitable for three phase pump set. the panel should have space for energy meter (supplied by discom). all these equipment’s shall be housed by panel box made out from 18 gauge m.s. sheet with powder coating. panel should be of minimum size 900 x 600 x 450 mm with stand ( made of angle iron of size 35x35x5mm) duly bolted/screwed with enclosure box having 4 legs, each legs length 18 and double door including in built locking system. the legs should be embedded in m-15 cement concrete plat form. the size of cc platform should be equal or bigger than the base size of panel having height of at least 200 mm from ground level. the panel should have opening of suitable size in front of space for energy meter with glass for meter reading. the operation of panel should be suitable for on 440 volt ac supply. 20 hp to 30hp 13 providing & fixing of double flanged, cl body, isi marked nrv of approved make of following sizes 65 mm dia 14 contingencies