PROVN OF TWO GANTRY CRANES AT

Amount

Supply, installation, testing and commssioning of indoor type electrically operated single grider Goliath crane of capacity 1.5 Ton floor mounted confirming to IS 800,807,3177 & 3938 (latest revision) with span span 7 to 7.5 Meter (approx) height of lift 4.5 to 6 meter (Approx), tavel length 45 meter (approx) suitable for operation on 415 volt, 3 phase, 4 wire, 50 Hz with necessary supporting structures with hoist speed 3 mtrs/min (with micro with VFD) , cross travel speed 6 mtr/min (with micro with VFD), long travel 8 mtr/ min (with micro with VFD) with micro drivers through VVF drive and gread motors of suitable capacities with control panel power and controlling cables, confirming to relevant IS,s controlled by pendent button station and radio remote control switch of operation with and including of dia steel rope 10 mm dia, operation system hoist/cross travel/long travel/electrically operated with pendant DSL system shrowded bus bar including cutting of existing floor/roof surface and making good as per existing srface after installation of cranes with the following specified :-

(v) Brakes for all dirves shall be Electro-magnetic shoe/disc type brakes according to the application. (vi) Hooks shall be shank type supported on anti friction thrus bearing and the sleeves pulley shall be made out of malleable cast iron or fabricated conforming to IS : 15565 (vii) Controls : The crane shall be controlled by pendant push button type. The main electrical components shall be housed sheet steel enclosure suitable for indoor application conveniently located for easy maintenance. Standard protection devices for overload protection and short circuit protection relay shall be provide. (viii) All other incidental, civil, electrical and mechanical works for the following :- Notes : 1 The subject crane is meant for the purpose of handling small to medium components of engine assembly. 2. The crane will be put to user for 365 days continuous duty with CT, LT and hoist movements.

3. The department shall be resposible for providing suitably rated electrical outlet in the main electrical contol panel/main distribution board of building. All other work, electrical earthings and associated incidental and minor work shall be the resposibility of the contactor. 4. The shop floor environment will be dust prone humid, welding fume filled and ambient temprature going up to 50 0 C weather condition are tropical. Crane shall be kept in the normal shop floor condition without any temperature controlled enclosure /shop Max temperature variation is 25 0 C in 24 hours. Sound level should be minimum 75 decimal and the crane should have decent esthetic look ambient temperature 4 0 C to 50 0 C & relative humidity. 55% 5. Major Technical specification of the crane are below :- These are to be complied with by the contractor/manufacturer. The parameters which are not specified are to be as per contractor/OEM,s own design.

STRUCTURAL FABRICATION (Constructional details) : (i) Bridge girder shall be ISMB/Box type single girder construction having min vibrations. and standard joist/ box type fabricated from plate, max deflection of main grider limited to 1/900th span of live loads including the weight of the hoist. (ii) End carriage fabricated from rolled steel section/plates as per IS 2062. (iii) Raw material only tested quality steel Fe 410 WB as per IS 2062, IS 1964 & IS 808 and certified for quality by reputed inspection authorities shall be used. Number of joints allowed : Single joint welding electrodes for all horizontal welding E 018 electrode only should be used. Welded joint Testing : All butt welded joints (both compression/tensison and flanged/web joints) shall be subjected to 100 % X rays testing and X ray films to be produced for evaluation and form part of the completion document. Mechanical Joint : Fit bolts (as per IS 3640 - 1982) for all joints coming in main members.

Gears & Gear Boxes Details : Gear box should be of fabricated type duly stress relieve. Pinions made of En 24 and gears of En 18 gears in all the stages shall helical in design and to be of machined, lapped and hardeded straight and helical spur gearing shall normally be used for motions. worm and bevel gears shall not be used. first and high speed reductions shall be through helical gears. all first reduction pinions and also the other pinion if feasible shall be integral with the shafts. All gears shall be of hardended and tempered alloy or carbon steel with machine cut teeth. Gear teeth shall be cut in metric module system, surface hardening of teeth is not allowed. The Gears/pinion should be hardened to HRC 50 - 55 and ground. Please note that gears and pinion must have pressure angle of 20 degree only. Luburication : Lubrication suitable lubrication system shall be provided for gear box, all rotating parts wherever applicable. Details of the same to be furnished. Please indicate the type of lub, oil & gearse, quantity also.

Rope Drum : Shall be of fabricated type stress relieved or seamless pipe - The circumferntial weld joint shall be tested by 100% X ray quality (please mntion the size). The size of drum shall be as per manufacturer recommendation. Wheel : Trade mean dia of wheel for crass travel shall be as per manufacturer recommendation. Type of Coupling : Coupling should be flexible geared barrel type . No pin/bush/rubber type coupling to be used. Machining Operation : All mechanical mating surfaces and wheel seating areas are to be machined to the required finish and protected.

Hoist wire Rope details : Fibre core confirming to IS : 2266. Mention wire rope 10 mm dia. No of fall - 04, 6x36 construction with a minimum breaking load of 1770 n/sqm, Make : FMC Usha Martin, Mahadev or equivalent make, Inpit power supply shall be 415 + 10% volts, 50 + 3% Hz, 3 phase, AC control voltage shall be 110V DC. Make : Protection : All panels, Limit switches and motors shall have IP 54 protection. Motor Details : Squirrel case Induction crane duly motors. Totally enclosed, fan cooled, insulation class - F & confirm to relevant latest IS 325) and IS 123. S4 duly, 150 starts per hour 40% CDF. Contractor to provide other details like No of motors, capacity of motor, frame size, make, type and No of poles etc. Hoisting motor 3 HP 960 RPM, CT motor 0.50 HP 960 RPM, LT motor 1 HP 960 RPM x 02 Nos.

Types & details of brakes for all motions : Conical rotor type or Fail to safe action type electromegnetic shoe/disc brakes type to be provided to hold the mechanism in position instantaneously as soon as the power supply is Off either accidentally or intentionally for all motions. Brake whell dia for hoisting shall be 100 mm having breaking forged 6kg/m Model MDT - 100. brake sheel dia cross travel shall be 100 mm breaking forged 6 kg/m Model MDT - 100. Electric Contractors : Shall have SIEMENS/L&T/GE contractors suitable for crane operations crane duly AC - 4 rating. Contractor rating : The rating of all contractor shall be at least 50% higher than the respective electric motor full load current at the specified duly cycle. Wiring : All the panel wiring should be done by using standard multi core copper highly flexible double insulated cables and of Buty/Rubber. Earthing for for electrical items in crane shall be carried out as pe IS.

Trailing cables : Trailing cables (Extra flexible having copper conductor only) should be traiveling on roller moving on separate I beam parellel to bridge girder and both for LT & CT shall be supplied and errected by supplier. illumination : 2 nos of 100 W LED light fitting shall be provided under the bridge and 1 No shall be provided under CT trolley fitting shall be of non-integral type (total lights 3 Nos.) Limits switches : Hoist shall be provided with both rotary and counter weight type (over hoisting and over lowering) Shunt, adjustable type limit switch. Limit switches shall be provided for both CT & LT. Two way lever type for CT both direction and LT both direction. Supply and errection of DSL Shrouted busbar : The details of DSL to be provided by contractor for CT & LT and in scope of work.

Painting Instructions : (a) Surface cleaning : Girder to be shot blasted or chemically treated for surface cleaning, after completion of all operaations but prior to painting contractor to furnish the details of facilities for shot blasting M/c at their/OEM,s works. (b) Painting : One coat of Red Oxide primer with 25 micron DFT (Dry film thickness) and 48 hours of compulsory curring after painting . (c) The crane should be thoroughly cleaned and final painting with two coat of enamel paint (colour - golden yelow) each with a DFT of 25 micron and intermittent curing of 16 hour. final touching will be done after erection & commissioning at site if required.

Horizontal Boring under hard standing/ pavements or roads manually using suitable auger for insertion of GI pipes up to 80mm bore and making good the disturbed surface complete all as specified and as directed. [Note: GI pipe will be measured and paid separately]

S&F GI tubes 80 mm bore dia light grade with all fittings laid in trenches or inserting in horizontal boring complete all as specified and as directed.

Supply,laying, jointed and testing LT cable XLPE insulated, screened, PVC bedded, galvanised steel strip, armoured, heavy duty cable with aluminium conductor, 1100 volts laid in trenches/ drawn through pipe/ poles or laid under road / drains / path / complete of cross sectional area 70 sq. mm 3.5 core complete all as specified and directed.

Supply,laying, jointed and testing LT cable XLPE insulated, screened, PVC bedded, galvanised steel strip, armoured, heavy duty cable with aluminium conductor, 1100 volts laid in trenches/ drawn through pipe/ poles or laid under road / drains / path / complete of cross sectional area 25 sq. mm 3.5 core complete all as specified and directed.

Supply and fix flush mounted factory made VTPN DBs, 415 volt IP - 43 protection IK-09 with metal double door with 200 Amp copper bus bar with 2 neutral bar, earth bar and cables management fully insulated bus bar with set of wire and door earthin with provision of space of 100 ampsMCCB as incommer and SP/TP MCCBs as outgoing 4 way complere all as specified and as directed.

Supply and fix MCCB 63 Amp, 4 pole 415 volt 25 KA complete all as specified and directed

Supply and fix MCB SPN 40 Amp. 240 volt C curve 10 KA complete all as specified and directed

Supply and fix MCB SP 6-32 Amp. 240 volt C curve 10 KA complete all as specified and directed

M&L for Earthing complete with copper earth plate electrode 60 cm x 60 cm x 3.15 mm thick, buried directly in ground (earth pit not less than 2.25m deep below ground level) with top edge of earth plate not less than 1.5m below normal ground level, connected to copper earth strip of 20 x 3 mm size by means of bolts, nuts, check nuts and washers of copper/brass and connected from earth plate electrode earthing test point,GI tubing 40 mmbore medium grade protection pipe,GI watering pipe 20 mm bore medium grade with 40 mm thick with PCC 1:3:6 type C1 chamber, MS funnel and wire mess, CI cover, including necessary excavation in any type of soil, returning, filling in, removal of surplus soil to a distance n.exc 50m, charcoal and salt complete all as shown in electrical plate No. 3 of Schedule Part-I 2009 and connected to earthing test point all as specified or indicated and testing on completion. Note :- 1. Earth lead& protection pipes lenght upto & including 7.50 meter shall be deemed to be inclusive in quoted rate 2.Earth filling shall be done by vegitable soil. 3. Soil should be free from stone , boulders, aggregate, gravels etc.

Supply and fixing of 20 X3 mm size copper strip as in earth continuity conductor or main earthing lead buried in ground, fixed to wall, any other indicated situation for loop earthing and the like up to test point on necessary insulators and fastening screws, rawl plugs complete all as specified and directed.

Design, supply, erection, testing and commissioning of outdoor type LT Feeder Pillar of overall size not less than 2100 (W) X1500 (Ht) (Without Canopy & Base channel) x 450 mm Depth, M.S. Channel Base Frame mounted (to be mounted on the 3 side covered brick. pedestal of height 450 mm above ground level) , suitable for 3 phase 4 wire, 415 volts AC supply and having 4 Nos Aluminium bus bars of rating 400 amps insulated , Provision of Spreader link to both incoming and outgoing side of MCCBs for termination of cables the Feeder Pillar shall be duly fabricated in a approved fabrication house who posseses type test certificate from CPRI for similar type of Feeder Pillar and having modern fabrication and testing facility which includes atleast seven (07) tanks pre-treatment facility comprising of de-greasing, rinsing, de-rusting, rinsing, phosphating, rinsing and passivation followed by powder coated painting (thickness not less than 80 Micron) with approved shade of RAL 7032 (SIEMENS GRAY).

The Feeder Pillar shall be duly fabricated in a approved / certified factory / fabrication house who possesses type test certificate from CPRI for similar type of LT panel and having modern fabrication and testing facility which includes at least seven (07) tanks pre-treatment facility comprising of de-greasing, rinsing, de-rusting, rinsing, phosphating, rinsing and passivation followed by powder coated painting (thickness not less than 80 Micron) with approved shade of RAL-7032 (SIEMENS GRAY). The LT Panel shall be provided with suitable rubber gasket to make it completely dust and vermin proof and degree of protection shall not be less than IP-54 and general construction conforming to IS-13947. The feeder pillar shall be made out of 3.15 mm thick CRCA mild steel sheet and 3.15 mm thick gland plate and having compartmentalized construction for individual switchgears and Bus Bars and having front opening facility (with double layer shutter) and rear opening facility with single layer shutter with locking facility and 2 side slanting canopy type roof on top and mild steel channel (MC-75) base frame at bottom, suitable for mounting on the brick pedestal through grouting bolt. The panel board shall be provided with ventilation facility in the form of louvers for better heat dissipation. The feeder pillar shall be comprising of the following: -

PROVISION FOR CABLE ENTRY :- The provision for cable entry / exit shall be provided from the bottom for both incoming and outgoing cables through and including cable gland etc CONTROL WIRING :- All control wirings shall have to be carried out with 1100 volts rated FRLS grade PVC insulated (Gray Colour) multi-flexible type copper wire of cross sectional area 1.50 Sq mm and shall be properly bunched,tied and dressed, ferrule marked for proper identification and crimped with suitable size & type of tinned copper lugs and shall be wrapped with PVC spring type flexible pipes near the door hinges. INCOMING :- (i) S & F MCCB 4 pole having breaking capacity 25 KA, 50 Hz of rating 200 Amp - 01 No Make : Legrand/Schneider/ABB. OUTGOING :- (i) S & F MCCB 4 pole having breaking capacity 16 KA, 50 Hz of rating 63 Amp - 05 No Make : Legrand/Schneider/ABB. MISCELLANEOUS ITEMS :- (a) SP MCB 6 Amps 10 KA (For Control Wiring) - 01 No. Make : LEGRAND /SCHNEIDER / ABB INSTRUMENTATION SYSTEM :- LED Phase Indicating light, shrouded type, 22mm, with cluster LED - 01 set of 3 lamps (RED,YELLOW & BLUE) Digital Multifunction meter - 01 No. Make : L&T / AE/ CONZERV / ELMEASURE C.T having Ratio 500/5, resin cast, - 03Nos.

Excavation in trenches in any type of soil not exceeding 1.5 mtr deep and not exceeding 1.5 mtr wide for laying of cables, RCC poles/stays and struts etc or /getting out cable cover and stacking for reuse/ credit , trimming sides and forming bottom surface all as specified and directed.

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

Removing surplus excavated soil nexc 50 mtr and depositing where directed at a level n-exc 1.5 mtr above the starting point complete all as specified and directed.

M&L for dry sand cushioning to underground cables with 8 CM thick before laying of cables and 15 CM thick after laying and stretching of Cable complete all as specified and directed. Note : Only punned thickness i.e. 18 CM shall be measured and paid.

M & L for sub class 'B' brick for covering to under ground cable laid flat transversally width equal to the lenth of the cable complete all as specified and directed.

Sant Construction Co.

M/s M.S. Electric Co.