Public Works Department-PWD has published Tender For Maintenance Of Street Lights, High Masts, Subway, Underdeck & Pump Fob Lights On Delhi Pwd Road Under Pwd Emsd-Ii, South West. (Sh : Sitc Of Electrical Chain Hoist To Lift Coarse Bar Screen Of 2 Ton Capacity At Nangloi Stand Pump House Najafgar. Submission Date for this Tender is 31-07-2023. Street Lighting Tenders in New Delhi Delhi. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | SITC of Electrical Chain Hoist to Lift coarse bar screen of 2 Ton capacity with pendent control handset andcable, ready to connect up to start work with its chain collector and mains connection already fitted hoist body finish painted RAL 5017 (Traffic blue),hinged removable suspension bracket, operating voltage-3 phase AC,380 to 415 V,50 Hz, degree of protection IP 55 insulation class F, operation via pendent control handset complete with Emergency stop button, degree of IP 65,direct control for GM2/GM4/GM6 48 V contactor control with semi conductor technology for GM 8,quick plug type connector with twist lock,2 lifting speeds (main and precision lift),overload protection with externally adjustable slipping clutch, high strength ,galvanized profile steel chain with chain container, hook path 3000mm,pendent control cable to suit hoist hook path i/c technical specification ie Capacity 2 Ton, Standard Hoists are designed for classes of application as per IS-3938,outdoor type 2nd heavy duty class, wire rope 10 mm dia numbers of falls 4,Speed 3 mtr/min (Up& Down motion),Hoisting Rating 3 HP motor, Gear ans shaft-pinions-EN -24,gears- EN9/EN8, Break Electro Magnetic Disc Type brake mounted externally on the rear end of the hoisting motor ensuring easily accessibility, operation-Hoist would be operated through floor pendent push button, limit switch, hook block assembly etc. |
| 2 | Providing and fixing stainless steel ( Grade 304) railing made of Hollow tubes, channels, plates etc., including welding, grinding, buffing, polishing and making curvature (wherever required) and fitting the same with necessary stainless steel nuts and bolts complete, i/c fixing the railing with necessary accessories & stainless steel dash fasteners , stainless steel bolts etc., of required size, on the top of the floor or the side of waist slab with suitable arrangement as per approval of Engineer-in-charge, (for payment purpose only weight of stainless steel members shall be considered excluding fixing accessories such as nuts,bolts, fasteners etc.. |
| 3 | Steel work welded in built up sections/ framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer using structural steel etc. as required. |
| 4 | In gratings, frames, guard bar, ladder, railings, brackets, gates and similar works. |
| 5 | Providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level:- |
| 6 | 1:2:4 (1 cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources) |
| 7 | Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. |
| 8 | Mild steel and Medium Tensile steel bars |
| 9 | Centering and shuttering including strutting, propping etc. and removal of form for. |
| 10 | Foundations, footings, bases of columns, etc. for mass concrete |
| 11 | Painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade : |
| 12 | Two or more coats on new work over an under coat of suitable shade with ordinary paint of approved brand and manufacture |
| 13 | Supplying and fixing FP sheet steel enclosure on surface/ recess along with 63 A 415 V "C" curve FP MCB complete with connections, testing and commissioning etc. as required redit for dismantle material includes. |
| 14 | Excavation of the cable trenches in hard rock not exceeding 1.5 meters in width and lift upto 1.5 meters, including getting out the excavated soil and disposal of excavated soil as directed within a lead of 50 meters. |
| 15 | Supplying and Fixing of 4 X 6 sq mm XLPE copper conductor Armoured 1.1 KV grade power cable on surface of wall/ceilingetc complete as reqd.(With the help of 1 mm thick saddle) |
| 16 | SITC of Single Girder I-Beam type EOT Crane. Capacity 2 Ton,2 nd Class indoorhaving Spanof 6 Mtr App. Lift 6 Mtr. Approx. End Clearance 200 mm Type. Control Floor Pendent Push Button Operated End Carriages Channel/Plate fabricated type having L Blk. Wheel Assemblies/Open Gear assembly Bay length 4.5 Mtr , IS 807-3177, Speeds Main hoisting 3 Mtr / Min for main. Cross Travel 12-15 Mtr / Min for long travel. Bridge The Main Girder ISMB OR plate Stiffeners fabricated box type construction design to sustain all stresses arising due to vertical & lateral forces with impact to which they are subjected. The maximum deflection of the main girder is limited to 1/750 of span of live loads including the weight of the trolley or hoist. Gear Box Single Helical Reduction mounting on anti frication ball /Roller bearing splash lubrication CI/Fabricated as per IS 226/2062 according to design requirements pinions are made of EN -24 Gear And shafts are made of EN-8&EN-9 Materialaccording to design requirement Main hoisting Gear Box HELICAL GEAR BOX Cross travel Gear Box Geared Motor Long travel Gear Box Geared Motor x 2 Motors All crane duty standard make motor for Hoist, Cross Travel & Long travel. Sq.Cage type Motor as per IS-325 40%CDF CLF Insln. With IP 55 enclosures. International frame size fan cooled type / MZ frame size. Main hoisting 2 Hp. Cross Travel 0.5 Hp.Long Travel 0.5 Hp x 2 .(both side) Brakes Electro Magnetic DC DSIC / Ac Shoe Type Brake Control Panel Contactors, Step down transformers, MCB’s , Transformers, Fittings, etc. Will be provided in Control Panel Limit Switches Main Hoisting – Geared Rotary type / Snap Action, CT / LT – Lever Type. Coupling All coupling to be used in crane will be flexible gear coupling to Minimize dynamic deflections. Wheel Assemblies The Wheels of the Trolley & The end carriages shall be forged steel CN55 AND MN 75 (E-N-9) duly spin hardened to 300 BHN materials Double flanged straight tread type fitted with antifriction bearings with L Type Bearing Housing for the ease of maintenance. For L.T. 150 mm. Total - 4 Nos For C.T. 120 mm Total - 4 Nos. Wire Rope Plough steel wires (as per IS-1835) rope with well lubricated fiber core of 6x36construction. Rope shall conform to IS 2266. (to be tested for breaking load test certificate for Bearing load shall be furnished)Twisted wire rope in crane will be used.( For Main Hoisting - FMC /WRC 6x36 in 4 falls ) 8 MM Cables All flexible copper cables tested to 1100V will move fitted Along with hoist unit End Stopper Steel OR rubber stopper are provided on either side of the bring for motion of the trolley. All the buffer will employ springs for shock absorption. Rope Drum Seam Less pipe/plate rolled suitable dia & suitable shell thickness to accommodate wire rope single layer/Double Groove layer as per IS-2062 Steel Steel confirming to IS- 2062 or equivalent is used in the manufacture of Main Load bearing. Paint Crane will be painted with Golden Yellow. Bottom Hook assembly According to IS 3177, Made of Trunnion, 2 sheaves and a single hook, supported on trunninon by thrust bearing, the hook shall be made of forged steel. Control Panel Enclosure To be mounted on platform, IP-55 To be mounted on platform, IP-55 Protection with plug in system of all Cables including long travel device. Supply 440V, 50 Hz, 3 Phase. Control Voltage 110V 50 Hz i/c testing ,connection etc complete as reqd. |
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