Bids Are Invited For Servicing/Overhauling Of Air Circuit Breakers (Acbs)/Vcb Four Times In A Year After 03 in India

Work Detail

Bids Are Invited For Servicing/Overhauling Of Air Circuit Breakers (Acbs)/Vcb Four Times In A Year After 03; 1.1 Air cleaning with blower including cleaning of circuit breaker body and bushings. 1.2 Cleaning and assembling of front cover, push button, locking latches etc. 1.3 Cleaning and assembling of arc chute cover and terminal shield. 1.4 Cleaning and assembling of chassis. 1.5 Cleaning and tightening of every point of auxiliary and control unit connection block. 1.6 Cleaning, greasing and assembling of hand pullout System, racking mechanism of chassis and function position indicators. 1.7 Cleanings, checking and assembling of arc chute. 1.8 Physical inspection of main contact. 1.9 Use of anti-corrosion spray where required 1.10 Physical inspection and setting of contact gap & pull rod. 1.11 Inspection, cleaning and setting of tripping releases. 1.12 Cleaning, checking/testing and assembling of tripping Coil/ closing coil. 1.13 Checking for overheating of terminals/ thimbles/ insulation 1.14 Where auxiliary power source such as battery bank/power pack are installed, the water level of batteries, maintenance of batteries, overheating in connection bolts, life of the battery shall be checked by the service provider 1.15 Checking and sealing of cable entry holes 1.16 Cleaning and assembling of electrical spring charging motor. 1.17 Cleaning, greasing and assembling of mechanical charging system. 1.13 Cleaning, greasing and assembling of jaw contacts. 1.14 Testing the closing time, tripping time and springtime as per standards. 1.15 Checking and measuring the closing coil resistance, trip coil resistance and Contact resistance. 1.16 Lubricating the inner mechanism roller and other linkage and knife. 1.17 Applying petroleum jelly on cluster contact. 1.18 Cleaning of all components of ACBs/VCB should be done with petrol and Contacts with CRC as per standard. 1.19 Touch up painting wherever required 1.20 Final testing of the circuit breaker for its electrical/mechanical functions. 1.21 Recharge time of operating mechanism after specified sequence. 1.22 Checking breaker Operation (Local/Remote operation). 1.23 Checking and adjustment of Track alignment and Interlocking mechanism 2. Breakdown Maintenance: The breakdown maintenance is included under the scope of work which has to be carried out free of cost within a specific period of time given by Engineer-in-charge or his authorized representative depending upon the type of breakdown. The field service reports shall be submitted by the service engineer, for the fault attended & remedial action taken & suggestion /advices if any. 3. The damaged/rusted or not working components has to be replaced free of cost with new one if necessary however spare parts would be provided by NSIC. 4. The Service provider shall provide consumables like petrol, CRC, Antirust Spray, cleaning cloths, cotton wool, cleaning agent required for the servicing free of cost. 5. Routine inspections and checking of ACBs/VCB as per manufacturer norms has to be carried out on quarterly basis and reports have to be submitted accordingly. 6. The contract of work does not include free repair to damages caused by Calamities, fire, accident, vandalism, negligence, mishandling, misuse or tempering. 7. All the work has to be carried out without hampering the utilities of premises. 8. The service provider shall use their own tools & tackles, PPE/Safety Gear

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