Delhi Metro Rail Corporation Ltd. (DMRC) has invited open e-tender for the work “Contract DE-05R: – Design, Detail Engineering, Manufacture, Supply, Installation, Testing and Commissioning of 25KV AC Traction (RIGID OHE), 33KV Auxiliary Sub Stations (ASS), Associated Cabling and SCADA Systems for Krishna Park Ext. Underground Station of Janakpuri west to R. K Ashram corridor (Extn. of Line-8) of Phase-IV Delhi MRTS Project”.
- Tender Reference Number: DE-05R
- Approximate cost of work: INR 22.75 Crore
- Completion period of the Work: 20 Months
- Document Download / Sale Start Date: 09-Aug-2021
- Document Download / Sale End Date: 20-Sep-2021
- Pre Bid Meeting Date: 27-Aug-2021
- Bid Submission Start Date: 09-Sep-2021
- Bid Submission End Date: 20-Sep-2021
- Bid Opening Date: 21-Sep-2021
Scope of work:
The Contractor shall supply all equipment and materials necessary to meet the requirements of ROCS works, include but not be limited to the following:-
- 25 kV Rigid Overhead Contact System (ROCS) for the Underground Portion of under any of the lot as described above.
- Extension of 25kV ROCS from existing Line to new section. Interlinking of 25kV between Existing lines or new lines as applicable may be executed by the contractor.
- Transition arrangement of 25 kV Rigid OCS to 25 kV flexible OHE in different ramp portions.
- Earthing system (based upon simulation study) including providing of METs, Copper cable, relevant connections to OCS & all other services (hydrant pipe, track, walkway, tunnel reinforcement etc).
- Centre Line marking, supports location marking, drilling, Supply and fixing of anchor fasteners for OCS supports.
- Supplying and Fixing of Tunnel earth wire (Size of TEW will be based upon simulation study).
- Provision of thermite /Exothermic welds in track for connection of cables for return current continuity and for earthling of equipment.
- Simulation Study for EMI / EMC and calculation of voltage induced in different services e.g. Rail, 33 kV cable, Earth wire, S & T cables, Tunnel Earth wire, LCX, Coaxial cables, etc. Also, magnetic field produced in a Transverse Plan of the Track.
- All minor civil works or modifications required for installation of the equipment and restoring to final finishes.
- Transfer of Technology.
- Coordination with Contractors responsible for 25kV flexible OHE & other Systems.
- Integrated Testing during train trails.
- Validation (Auditing) of design & installation of ROCS through Independent Agency as per IEC and other relevant Standards. The tenderer/consortium partner/designer shall not be the part of Validation (Auditing) Agency.
- Facilitate Power block during trails upto ROD (Manpower for the same should be deployed by the contractor).
- Protective provisions relating to electrical safety and earthing which include earthing of equipment, cables and non-current carrying metallic components of this Contract, etc.
- All protective measures to suppress EMI/EMC effects due to 25 kV AC traction
- Works Train for transportation of materials & equipment and for construction purposes.
- Supply of Consumables during DLP.
- Special tools, testing and diagnostic equipment and measuring instruments.
- Training.
- Documentation. Supervision of Maintenance during DLP.
- Services.
- Shock treatment charts, first aid boxes and danger notice plates.
- Contractor’s Design team shall supervise the installation of the 25kV Rigid Overhead Contact System (ROCS), for the Underground Portion of Delhi MRTS Phase-IV Project.
- Contractor will be required to interface with SCADA Contractor to enable them for implementation of SCADA system for the Rigid OCS.
- In a general manner, all works, facilities and services and other components as required whether or not specified necessary to deliver the requirements of ROCS works to ensure a perfect and complete execution under this scope and relevant code and standards and to these specifications.
- Any other item of work as may be required to be carried out for completing the work under this Contract in all respects in accordance with the provisions of the Contract and/or to ensure the safety of installation during and after execution.
- Contractor shall provide Rail cum road vehicle during the complete execution of ROCS works. The vehicle shall be capable of running before/after laying of track in tunnel. During the post installation checks of ROCS regarding minimum electrical clearances (Static & Dynamic) the vehicle shall have the provision of pantograph having same design & dimension used in the rolling stock of the line.
- Contractor has to interface with rolling stock contractor for the details of Pantograph. DMRC may provide the contractor pantograph from the O&M similar to the pantograph installed in the line trains the contractor has to install the pantograph on his RRV and conduct the joint checking of SED. After completion of the work the pantograph may be returned to DMRC.
- The work of extension of 25kV ROCS from the existing section shall be done under power block in non-revenue hours as per laid O&M procedures. After the successful energization of ROCS and during the later stage, work will be done under power block during day or night as required due to operational requirement or train trials or as per circumstances.
- During installations all the activities will be executed at site as per the joint interface and sequence of access agreed between the contractors. The execution work may be conducted round the clock in shifts as per the joint interface agreed between the contractors after shared access agreed by them. the contractor.
- Contractor shall depute his staff, manpower, labour etc. and payments, wages to be paid according to statutory requirements of working hours.
The tender documents describing the Scope of Work and Terms and Conditions for the Contracts are available on the website https://eprocure.gov.in/eprocure/app.
Source: DMRC-Tender | Image Credit (representational): DMRC
