estimate for supply, erection and commissioning of 9 no. eot 3 ton and other allied accessories at various pump houses of siwani canal, jui canal and nigana canal system , supply, erection & commissioning of e.o.t crane tested to 25% overload as per is: 3177& is: 807 completer with di rail type electric wire rope holst confirming to is: 3938, having technical para / meters as under:- * capacity 3 metric ton ( 3000 kgs. ) * span of crane as per site requirement. ( 10-15 mtr. ) . *bridge construction single girder type construction consisting of r.s. joist of adequate strength, complete with ms square bar 40 mm welded to top flange of the beam ( griders ) *height of lift 7.0 mtrs± 2 mtrs ( approximate ) standard lift as per site requirement.*duty class-ii ( indoor / outdoor type ) duty. *electric motors crane duty, tefc squirrel cage induction motor as per is: 325, 5.4 rating suitable for 150 starts per hours with class- f insulation and ip: 55 protection, operating on a.c. 3- phase, 50 mz main power supply at 415 ( volts+ / - 10% ) of bharatbijlee / siemems / abb / cgl make. ( 1 ) hosting motors: 3:00hp ( 2 ) long travel motor: 1 hp * operating speeds ( 1 ) hosting motors: 6 meters: per minute or less ( 2 ) long travel motor: 15.0meters: per minute * brakes all motors of the crane shall be coupled to failsafe, a.c. electromagnetic drum / disc-type brakes designed to be declutched as soon as power supply is cut / switched off. *gears all gears shall be of helical-type precision machine hobbled from tested quality alloy steel dully housed in a totally enclosed dust & vermin proof oil-bath lubricated gear boxes. * wire rope tested quality, un galvanized steel wire rope of 6x36 or 6x37 construction with fiber / hemp core as per is 2266 of usha martin make ( size 13 mm / 4 falls ) shall be used. * controls form ground level through a plastic bodied pendant controller sustended from the hoist having control voltage of 110-volts. for safety of the operator complete with ( mains ) on / off push-buttons. *other safety features contractors & overload relay shall be of slemens / bch make, electrical terminals oftecnoplast / phenix / elemax to prevent over hoisting / lowering of the hook block beyond operating limit two way shunt lever type limit switch shall be provided for long travel movement. finally, a c- series mcb of mg / hager make shall be provided for mains incoming supply beside individual use protection for all motors. * trailing cables trailing cable, consisting of pvc insulated copper cables complete with cable carrier trolleys running on the section of islf: 50 designation as per approved make by irrigation depatt. with all minor civil work. ( for escape ph no. 1 s / c, kairu ph no. 2, 3, ph no. 3, 4, 5, 8, 9 nigana canal and new sagwan minor.