REPAIRS/ MAINTENANCE OF COPE POINTS GALLERY CABLES, PUMPS, MOTORS AND ELECTRICAL EQUIPMENT OF DRY DOCK AREA AND PPHH AT NAVAL DOCKYARD VISAKHAPATNAM UNDER GE (I) (DM) VISAKHAPATNAM

Amount

M&L for repair and refurbishment of all fair wear and tear of Deisel Engine, Alternator, Radiator, Connected cooling & lubricate system, control circuitary and all associated and sub-components of Diesel Generator of 560kVA capacity including testing and commissioning complete all as specified and directed.

M&L for maintenance of Diesel engine connected with DG Set 560 KVA for 'B' check as per recommendation of manufacturers including replacement of necessary filters, accessories like fuel filter with ring, Air filter and ring, super bypass filter element, 'O' Ring Seal, Oil filter and engine Oil complete all as specified and directed.

M&L for repair of Diesel Engine by dismantling the Sub-assemblies such as fuel pump, fuel injection, Governor, turbo-charger, radiator, oil cooler, engine heads, rocker arms, dynamo engine wiring, terminal contacts and safety controls etc. including replacement of spare parts as required & scheduled and re-assembling the sub-assemblies after carrying out necessary repairs including testing and commissioning complete for the capacity (560KVA) all as specified and directed. Notes: Supply only spare parts required shall be measured and paid separately under relevant items.

Supply only the following spare parts as required shall be measured and paid separately under relevant items of Sch'A' for 560 KVA DG set make Powerica, Cummins of existing make etc., all as specified and directed.

FUEL FILTER AND RING (KIT 3238493)

ELEMENT LUB OIL (KIT 3238204)

KIT SUPER BYPASS FF FILTER (KIT 3879438)

SEAL O RING (3010937)

STRIP TEST (4912590)

INHIBITOR CORROSION 5 LTRS

ELEMENT AIR FILTER OUTER (3237953)

ELEMENT AIR FILTER INNER (3226019)

GASKET ROCKER LEVER COVER (3077198)

M&L for Repair & Calibration of Self Starter including re-winding (If neccessary) of Commutator, replacing carbon brush set, carbon brush holder, King Pins Holders, armature check nuts, body screws, clutch plate assembly and solenoid etc. as required for the following capacity of DG Sets for 560 KVA all as directed.

M&L for De-scaling of radiator by dismantling the upper & lower tank and cleaning the core pipes with cleaning chemicals, components and arrest the leaking core by brazing/dummy with lead including cleaning of upper and lower tanks and replacing the upper and lower gaskets and required nuts, bolts, refixing the same including testing and painting complete all as specified and directed for the following capacity of DG Sets for 560 KVA all are as directed

M&L for Maintenance and servicing of alternator of any make of any capacity by opening the end cover, cleaning the dust and rust formed over the terminals, cleaning with CTC liquid up to the satisfaction and checking of diodes, excitation winding, isolating transformer and AVR panel and applying Dr. beck paint for insulation improvement over the strips/winding and drying till getting satisfactory insulation resistance complete, and refixing the covers and testing complete all as specified and directed for the following capacity of DG Sets for 560KVA all as directed.

M&L for repair of Head reconditioning of 710 BHP Diesel Engine by dismantling of old unsv/burnt spare parts including replacement of spare parts as required and re-assembling of all parts with new one as per existing after carrying out necessary repairs including testing and commissioning complete all are as directed by Engineer-in-charge for the following capacity of DG Sets for 560 KVA all as directed. Note: Supply only spare parts required shall be measured and paid separately under relevant items.

Supply only the following spare parts as required shall be measured and paid separately under relevant items of Sch'A' during repair of engine Head-reconditioning of capacity 560 KVA as per existing make of Cummins complete all as specified and directed.

CR BEARING (PART NO: 20060)

RING SET (PART NO: AR3801755)

SEAL OIL (PART NO: 3020182)

ELEMENT AIR FILTER (PART NO: 3237953)

ELEMENT AIR FILTER (PART NO: 3226019)

HOSE A/C (PART NO: 3230440)

HOSE PUMP (PART NO: 103806)

CLAMP T BOLT (PART NO: 125739)

CLAMP T BOLT (PART NO: 125742)

HOSE (PART NO: 556150)

GASKET TURBO MTG. (PART NO: 3709749)

HOSE TURBO OIL (PART NO: 3026832)

KIT BARREL PLUNGER & CUP (PART NO: 3880783)

HOSE (PART NO: AS1001500SS)

BELT (PART NO: 3225785)

BELT (PART NO: 178456)

M& L for painting of DG Set structural members post surface preparation. One coat of primer, One coat of Anticorrosive and finish Coated PU paint complete all as marine standard specification.

M&L for Repair and Overhauling of Electric Driven Horizontal Pump (Fire-main) as per OEM binding data of the system as designed by providing at least 01 year warranty period. The pump specifications as mentioned as PUMP: Make-WILO Mather and Platt pumps PVt Ltd, Pune, Model-MISO 150-500, Capacity - 500 cm/hr, Net Gen head-80 m, shut off head - 103m, NPSH(r) - 3.66 m Eff – 75.12, KW absorbed-149.36, Wt-309.5, Wt Accessories-163kg, Brgs—6313zz-2, Suction-200mm, Discharge-150mm, Impeller dia-532mm. Note: Supply only spare parts required shall be measured and paid separately under relevant items.

Repair & Overhauling of Fire-main Pump Dissembling & identify the each component of Fire-main pump and make a complete list along with live status as per OEM binding data trails and commissioning of the system as designed by providing at least 01 year warranty period PUMP: Make-WILO Mather and Platt pumps PVt Ltd, Pune, Model-MISO 150-500, Capacity - 500 cm/h, Net Gen head-80 m, shut off head - 103m, NPSH(r) - 3.66 m Eff – 75.12, KW absorbed-149.36, Wt-309.5, Wt Accessories-163kg, Brgs—6313zz-2, Suction-200mm, Discharge-150mm, Impeller dia-532mm Note: Supply only spare parts required shall be measured and paid separately under relevant items.

Supply only the following spare parts as required shall be measured and paid separately under relevant items during repair of MISO 150 model Industrial pump complete all as specified and directed.

Impeller

Shaft

Shaft sleeve

Key for Impeller

Key for Coupling

Neck Ring

Gland Packing

Bearing End Cover (NDE)

Bearing End Cover (DE)

O-Ring

Impeller Nut

Gland Bush

Bearing

Coupling Rubber Pads

Fastners

Pressure Gauges

S&F of PLC based Local & Remote Display for Descrete Valve Position Indicaton Instrument System to Butter Fly Valve of 1800mm dia at South Dry Dock (SDD) Pump House by providing all the sensors with proper base and holdings on the Gear Box without disturbing the existing system. Notes: Supply only spare parts required shall be measured and paid separately under relevant items.

Supply only the following spare parts as required shall be measured and paid separately under relevant items of Sch'A' during Installation of PLC Based Valve Position Indication Instrument System for 1800mm dia Butter Fly Valve of SDD Pump House for specified schedule of 16.00 complete all as specified and directed.

Proximity Sensors to the suitable existing 1800mm dia BFV valve

Compactable Panel Board of size (LXWXH) 400x300x200 mm

7 Inch HMI Display for showing the Indication of the Valve by Proximity Sensor

Compact suitable PLC with 16 IN/OUT channel point as suggested & directed.

Power Supply protection 220 V, 50 Hz MCB

8 Core, 0.5 sqmm Armoured Control cable laying from SDD pump house to SCADA Control room of SDD Office Spaces

5 port Ethernet switch with cable all integrated/ programmed for operation on Ethernet platform for indication of valve at (i) Full Close (ii) 1/4 Open (iii) 1/2 Open (iv) 3/4 Open (v) Full Open

Repair and refurbishment of 2/3/5 Ton Capacity of HOT Crane, Inspection, Lubrication, Tightening and adjustment of wire ropes, drums, pulleys, bearings, couplings, rotation of each mechanism is normal and safe, check the material thickness replace the same if the limit corrosion is beyond 20%, replace the fisser plate, champs & complete painting including load testing as per design and commissioning the entire system as per specifications and directed.

Repair/Maintenance of Electricity Operated Lifts 02 (Two ) Nos RACK & PINION TYPE, MEKASTAR make installed in dry dock area testing as specified and as recommended by the manufacturers and as directed by the Engineer-in-Charge to ensure smooth, safe and efficient functioning including all spares/accessories etc. of compatible make as specified by the OEM except the spares as catered here under complete and all as specified in particular specification and as directed.

Detailed Inspection and defect Identification of 02 in no lifts to be carried out and make a consolidated list including the spares required to repair & catered and supplied to user for maintenance spares also for 01 year in maintenace aspects

Complete cleaning of the Vertical shafts and metal build up and grinding and polishing required to get it into the required shape and size for smooth functioning of the lift for RACK & PINION type.

Complete cleaning of the Gear moment shafts and metal build up and grinding and polishing wherever required to get it into the required shape and size for smooth functioning of the lift.

Repair & Refurbishment/ Renewal of the Gear Mechanisms complete all as per specifications and directed by Engineer-In-Charge

Repair/ Refurbishment of the motors and reinstallation after testing/ trials after checking all the technical parameters complete all as specified and directed.

Repair/ Refurbishment of wire rope/ pulleys and associated jigs & fixtures and renewal wherever necessary complete all as specified and directed.

Repair & Overhauling of Electrical & Electronic components such as indications/ push switches/ stabilizer/ control circuitary system and renewal wherever necessary as user guided complete all as specified and directed.

Ovehauling of the complete tracks by replacement of small wornout parts and accessories like springs, clamps, nut and bolts and removal of the rusts by grinding, cleaning and renewal wherever necessary.

Repair/ Replace passenger cabins by changing enclosures with SS sheets inside, providing non-skid mats for floors, provisioning scissor type doors along provisioning of sufficient illumination & ventilation system.

Load test to be carried out as standard procedure by competent authorized person, load blocks arrangement, handling, transportaton & securing of load blocks should be contractor's scope.

M&L for painting of lift structural members post surface preparation to ST3 standard. One coat of primer, one coat of anticorrosive and finish coat of PU paint complete all as marine standard specifications.

Repair/ Overhauling of LT Motor of capacity 250 HP (187.5kW) including Dynamic Balancing of Rotor, Bushings, Undercutting, metalizing of end shield covers, Reconditioning of Rotor Shaft at Bearing Locations (Both ends), Replacement of Rotor Shaft, Replacement of Cooling Fans, Terminal Blocks, (Supply by OPGC): The procedure of LT Motor Rewinding/Overhauling at OPGC as follows:- (a) Careful disassembly of the motor, remove old windings (b) Cleaning of stator core & slot suitably with compressed air/mechanical cleaning/chemical cleaning. (c) Hot Spot testing of stator cope and re-staggering of the stator core if required (d). Rewinding of stator with good quality material and specified insulation if required by intimating Engineer In-Charge. (e). Varnishing & Drying of Winding (f). Repair of rotor (Stamping only) if required, bearings to be replaced if required, bearing covers to be repaired/replaced as per requirement.

(g) Use phase insulation in all three phases. Stator insulation strength must be ensured by measuring R60/R15 and should be more than 1.3. The VVVF drive motors, special varnishing shall be done on the stator windings, that shall be carried out by VPI process i.e., dip impregnating coils in Class F moisture protection and finishing varnish by VPI Process and curing the same in Auto control cut off oven. (h) Brazed connections to be used instead of crimped ones. (i) Rewinding of rotor as per requirement (j) Healthiness of motor space heater to be ensured (k) Final assembly of motor with terminal chambers.

(l) Conduct relevant tests as per relevant, Latest BIS Standards, Prepare test reports and submission with the purchaser. (m) Third party inspection, the cost of thirty party deputations shall be in the scope of Purchaser. (n) All kinds of enabling jobs e.g. replacement of minor hardware i.e., Circlips, fasteners etc., (o) Replacement of cooling fans, Terminals Blocks shall be done if required. (p) Dynamic balancing of Rotor, bushing, end shield covers, undercutting and metalizing jobs, reconditioning of shafts (At bearing locations)/replacement of shaft. (q) The motor shall be painted with one coat of red oxide primer and two coats of epoxy paint of original color followed by proper surface cleaning.

M&L for Repair and modification of foundation of Pillar Box/ Cope-Point in Surya, Varuna Galleries and 09 Berth as work Involves:- The specifications for the Pillar Box/ Co-point as follows: Supply of LT Indoor Pillar Box/ co-point of size 1.5Mtrx1.5Mtrx1Mtr made out of 50x50x5 mm angle 75x40mm channel base, 3mm thick aluminium sheet for doors and canopy. Outside the panel and internal partition of 2mm thick MS sheet, 1mm FRP lining on the outer surface, Internal/ External area painted with Enamel paint with the following Switch Gear mentioned and 2000 Amps Cu Bus Bars including extension busbar links complete al as per specifications: Incomer: (a) ACB 4 Pole 50 kA MDO 1250Amps – 01 No (b) Voltmeter, Ammeter with Indication Lamps & Suitable CT coils - 01 Set Outgoing: (c) MCCB 630 Amps, 3 Pole, 35 kA – 01 No (d) MCCB 400 Amps, 3 Pole, 35 kA – 01 No (e) MCCB 250 Amps, 3 Pole, 35 kA – 02 No

(f) Ammeter with & Suitable CT coils for each Outgoing - 04 Set Fitment of modified distribution box with a minimum clear area of 30 cms ahead, 30 cms on top and foundation space of 30 cms in bottom by increasing the height of the foundation. Note:- Unit Rate quoted shall deemed to include the cost of following: (a) The requisite site visit to be undertaken by expertise to assess the actual site requirement and necessitate modification (b) The redesigning drawings as per site condition to be made and submitted to executed department (GE(I)DM) and user department (MDS) for approvals before placing/ manufacturing the Pillar Boxes. The product manufacturing to be started after getting the final approvals from the user (MDS) & executing (GE(I)DM) departments strictly. (c) The execution involves, removal of existing pillar boxes/ co-points and redesigning the units to smaller sizes as fitted to site condition (tailor made) with compact switch gears. The each co-point unit should have the capacity as mentioned above.

(d) The connections, terminations with gland fits and energising the pillar boxes/ co-points with suitable loads is also the part of scope. (Loads to be provided by the user (MDS) dept by existing docked/ berthed vessels). (e) The area covered by co-point (2 ft extra around) to be painted by latest marine environment applicable Insulation Paint. (f) Additional top roof cover required to protect from leakage water/rain water ingress and it provides all seasonal weather protection

REAL ENGINEERING WORKS

AARAV POWER CONTROLS

MVV Prasad

CIVILEC ENGINEERING WORKS

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