DFCCIL invites tender for maintenance of 2×25 kV OHE on Bhestan-New Gholwad section for 2 years

Dedicated Freight Corridor Corporation of India Limited (DFCCIL) has invited open e-tenders, in Single Stage Two Packet System for Maintenance of 2×25 kV high rise over head equipment (OHE) on Bhestan-New Gholwad Section of DFCCIL including the connection to Indian Railways at Bhestan & Sanjan for a period of 24 (Twenty Four) months under CGM Mumbai (North) Unit.

• Tender Reference Number: DFCC-MUM-N-EL-BHET-GVDN-OHE-T1
• Name of Work: Maintenance of 2×25 kV high rise over head equipment (OHE) on Bhestan-New Gholwad Section of DFCCIL including the connection to Indian Railways at Bhestan & Sanjan for a period of 24 (Twenty Four) months under CGM Mumbai (North) Unit.
• Estimated Cost of Work: INR 1,89,07,261.74/-
• EMD: INR 2,44,536/-
• Period of Contract: 24 Months
• Document Download / Sale Start Date: 04th July, 2023
• Document Download / Sale End Date: 03rd August, 2023
• Bid Submission Start Date: 04th July, 2023
• Bid Submission End Date: 03rd August, 2023
• Tender Opening Date: 03rd August, 2023

Scope of Work:

• The work requires a high degree of planning and execution.
• Preventive/breakdown Maintenance of given under assets shall be done by contractor.
• 2×25 kV A.C. Traction Overhead Equipment on main line, 25kV HIGH RISE OHE in loop lines and IR connecting line of Bhestan- New Gholwad Section. There are 03 nos. of station Yard in the Section i.e New Ancheli CS, New Pardi CS & New Gholwad CS.
• To maintain these, DFCCIL has established 01 no. IMD (Integrated Maintenance Depot) at New Pardi and 01 nos. IMSD (Integrated maintenance sub depot) is being established at New Gholwad.
• The material required for the maintenance shall be issued by an authorised representative of CGM/Mumbai (North) available at IMD/IMSD. The consumable material for the maintenance/ replacement for the defective parts & rest all other required tools and plants for maintenance shall be arranged by contractor.
• Special Checks & Preventive maintenance of the 2×25 kV A.C. Traction Overhead Equipment including negative feeders under Power Block activities but strictly under the supervision of competent representatives of DFCCIL and with their time to time instructions only, in accordance with the Standard Maintenance Instructions issued by the DFCCIL.
• Immediate attention for any breakdown in the 2×25 kV A.C. Traction Overhead Equipment for its quick restoration.

Regular Maintenance Activity:

Checking & Maintenance of Modular/ IR Modified Cantilever assembly:

• The Checking and Maintenance of Modular/ IR Modified Cantilever assembly shall be carried out as frequently as required to maintain it in good condition. However, the minimum frequency for maintenance is every 1.5 years.
• The detailed scope of work is given at Para 4.2.1.1 of this tender document, the scope given is minimum & not limited to the same.
• The Checking and Maintenance of Modular/ IR Modified Cantilever assembly shall be carried out in line with Maintenance instruction of RDSO/ Maintenance manual /Approved drawings (As Built Drawings)/Specifications of DFCCIL with its latest correction slips, if any.
• The price shall cover checking & maintenance of Cantilever assembly including all components, Stay & Bracket insulators, dropper wires and copper wires include small parts steelwork, all OHE parameters at the cantilever assembly, Checking of RRA clamps & contact wire at double cantilevers and carrying out periodic overhauling work of cantilever along with Zylo testing of non-ferrous parts.
• Check and adjust heights and staggers on the basis of setting distance and rail level marked. Close coordination with Permanent Way Inspectors is required for keeping the permanent way at the correct location.
• Price shall also cover dismantling & erection of new cantilever assembly including Stay & Bracket insulators. Price shall cover measurement and recording of all HIGH RISE OHE parameters, make, Sr.No., batch no. etc. of various HIGH RISE OHE components.
• Cantilever Maintenance sheets to be signed by both DFCCIL and contract representatives. The work shall be carried out as and when required by Engineer in-charge during the contract period.
• The Joint Report/Maintenance sheets to be signed by Engineer in-charge and Contractor’s representative which will be submitted by contractor to DFCCIL centralised office.

Checking & Maintenance of 25kV OHE Conductors:

• The Checking and Maintenance of 25kV OHE Conductors shall be carried out as frequently as required to maintain it in good condition. However, the minimum frequency for maintenance is every 1.5 years.
• The detailed scope of work is given at Para 4.2.1.2 of this tender document, the scope given is minimum & not limited to the same. The Checking and Maintenance of 25kV OHE Conductors shall be carried out in line with Maintenance instruction of RDSO/ Maintenance manual /Approved drawings (As Built Drawings)/Specifications of DFCCIL with its latest correction slips, if any.
• The job shall include checking of 25kV OHE on Masts, Portal structures, Bridge masts, Special masts if any etc., OHE Conductors for final adjustment & inspection of OHE stagger, removal of kinks and knots, adjustment of OHE as per SED annually. Tower wagon and ladder trolleys, as and when required, will be provided by DFCCIL.
• The job shall include Checking and adjustment of contact wire parallel clamp, contact wire dropper clip, catenary wire dropper clip complete with bolts, nuts etc., catenary ending clamp, large span wire clamp, adjuster, anchor double strap assembly, compensating plate / equalising plate, caution boards, number plates etc.
• The Joint Report/Maintenance sheets to be signed by Engineer in-charge and Contractor’s representative which will be submitted by contractor to DFCCIL centralised office.

Checking & Maintenance of all types of 25kV OHE Jumpers:

• The Checking and Maintenance of all types of 25kV OHE Jumpers shall be carried out as frequently as required to maintain it in good condition. However, the minimum frequency for maintenance is every 1 year.
• The detailed scope of work is given at Para 4.2.1.3 of this tender document, the scope given is minimum & not limited to the same. The Checking and Maintenance of all types of 25kV OHE Jumpers shall be carried out in line with Maintenance instruction of RDSO/ Maintenance manual /Approved drawings (As Built Drawings)/Specifications of DFCCIL with its latest correction slips, if any.
• The job shall cover checking and maintenance of all types of 25kV High rise OHE Jumpers not covered in other items including special arrangement at support & terminal fittings for conductors including adjustable and Jumper wires.
• The job shall cover adjustment of all components including PG clamp and Jumper wires on the OHE & shaping etc. Job shall also cover replacement of any jumper assembly complete if required (material will be supplied by DFCCIL), and no extra payment will be made for this replacement.
• All kinds of Jumpers with broken strands should be invariably replaced (material will be supplied by DFCCIL). Broken strands are most likely at the point of entry into PG clamps, possibly due to sharp edges in the clamp.
• PG clamps should have properly rounded off edges to prevent the cutting of strands. The clamps should be checked for signs of overheating and proper tightness.
• The Joint Report/Maintenance sheets to be signed by Engineer in-charge and Contractor’s representative which will be submitted by contractor to DFCCIL centralised office.

Checking & Maintenance of Overlaps (IOL/UIOL):

• The Checking and Maintenance of Overlaps (IOL/UIOL) shall be carried out as frequently as required to maintain it in good condition. However, the minimum frequency for maintenance is every 1 year.
• The detailed scope of work is given at Para 4.2.1.4 of this tender document, the scope given is minimum & not limited to the same. The Checking and Maintenance of Overlaps (IOL/UIOL) shall be carried out in line with Maintenance instruction of RDSO/ Maintenance manual /Approved drawings (As Built Drawings)/Specifications of DFCCIL with its latest correction slips, if any.
• The price shall cover checking and maintenance of all components and fittings with fasteners installed at Overlaps (insulated or uninstalled) including jumper connections between two sets of overhead equipment conductors at overlaps or neutral section & good length of sweeping zone to be achieved.
• The price shall also cover checking and maintenance of all materials including different types of jumpers, insulator and all adjustments required at crossing, overlaps and neutral sections whenever required.
• The price shall cover checking of potential equaliser jumpers at insulated overlaps. The price shall also cover replacement of different types of jumpers completely, if required and no extra payment will be made for this replacement.
• The Joint Report/Maintenance sheets to be signed by Engineer in-charge and Contractor’s representative which will be submitted by contractor to DFCCIL centralised office.

Checking & Maintenance of Anti creep arrangement on HIGH RISE OHE:

• The Checking and Maintenance of Anti creep arrangement shall be carried out as frequently as required to maintain it in good condition. However, the minimum frequency for maintenance is every 1 year.
• The detailed scope of work is given at Para 4.2.1.5 of this tender document, the scope given is minimum & not limited to the same. The Checking and Maintenance of Anti creep arrangement shall be carried out in line with Maintenance instruction of RDSO/ Maintenance manual /Approved drawings (As Built Drawings)/Specifications of DFCCIL with its latest correction slips, if any.
• The price shall cover checking and maintenance of all materials for anti-creep including adjusters, mast anchor fittings with bolts & nuts etc. at its termination on either side on structures ending clamps, Guy rod assembly and other fitting viz. single clevis assembly, anchor double strap assembly, double suspension clamp, double eye distance rod and 9 ton insulator, anti-creep wire. The price shall also cover checking/cleaning of the muffing of the anchor block of the guy rod assembly.
• The Joint Report/Maintenance sheets to be signed by Engineer in-charge and Contractor’s representative which will be submitted by contractor to DFCCIL centralised office.

Checking & Maintenance of 25kV Isolator (SP/DP) including earthing heel arrangement if any:

• The Checking and Maintenance of 25kV Isolator (SP/DP) including earthing heel arrangement if any shall be carried out as frequently as required to maintain it in good condition. However, the minimum frequency for maintenance of the isolator is every 1 year.
• The detailed scope of work is given at Para 4.2.1.6 of this tender document, the scope given is minimum & not limited to the same. The Checking and Maintenance of 25kV Isolator (SP/DP) including earthing heel arrangement if any shall be carried out in line with Maintenance instruction of RDSO/ Maintenance manual /Approved drawings (As Built Drawings)/Specifications of DFCCIL with its latest correction slips, if any.
• The price shall cover checking and maintenance of 2x25kV Isolator ( SP/DP) switch complete with post insulators, bus bar and related small part steel, operating rod, operating rod guides and operating rod insulator, mounting base, arcing horns, integral lock etc. including earthing heel arrangement and motorised unit if any.
• The earthing heals provision if any or earth electrode, including all fastenings at both ends. Inspection of earth’s pits, watering of all earth pits and recording earth resistance. Earths having resistance of over 10 ohms should be attended to as per the provisions made in maintenance manual of DFCCILs with its latest correction slips if any. The required coke, crushed coal and salt will be supplied by DFCCILs at no cost to the contractor.
• The price shall include for making jumper connections with HIGH RISE OHE, if required. The price shall also cover erection of the new 2x25kV Isolator (SP/DP) assembly complete on HIGH RISE OHE mast / structure gantries including erection of jumper, bus bar, if required and no extra payment will be made for this replacement.
• The Joint Report/Maintenance sheets to be signed by Engineer in-charge and Contractor’s representative which will be submitted by contractor to DFCCIL centralised office.

Checking & Maintenance of 25kV HIGH RISE OHE at Turnouts:

• The Checking and Maintenance of 25kV OHE at Turnouts shall be carried out as frequently as required to maintain it in good condition. However, the minimum frequency for maintenance is every 1 year.
• The detailed scope of work is given at Para 4.2.1.7 of this tender document, the scope given is minimum & not limited to the same. The Checking and Maintenance of 25kV OHE at Turnouts shall be carried out in line with Maintenance instruction of RDSO/ Maintenance manual /Approved drawings (As Built Drawings)/Specifications of DFCCIL with its latest correction slips, if any.
• The price shall cover checking and maintenance of all components and fittings with fasteners installed in 25kV HIGH RISE OHE at turnouts including knuckle or crossing equipment at a turnout and parallel clamps for jumper connections between two sets of overhead equipment conductors at a turnout.
• The price shall also cover maintenance of jumper wire and all adjustments required at turnouts, crossing whenever required. Turnouts Maintenance sheets to be signed by both Railway and contract representatives.
• The Joint Report/Maintenance sheets to be signed by Engineer in-charge and Contractor’s representative which will be submitted by contractor to DFCCIL centralised office.

Checking & Maintenance of 25kV HIGH RISE OHE on a crossover:

• The Checking and Maintenance of 25kV OHE at Turnouts shall be carried out as frequently as required to maintain it in good condition. However, the minimum frequency for maintenance is every 1 year.
• The detailed scope of work is given at Para 4.2.1.8 of this tender document, the scope given is minimum & not limited to the same. The Checking and Maintenance of 25kV HIGH RISE OHE on a crossover shall be carried out in line with Maintenance instruction of RDSO/ Maintenance manual /Approved drawings (As Built Drawings)/Specifications of DFCCIL with its latest correction slips, if any.
• The price shall cover checking and maintenance of all components and fittings with fasteners installed in 25kV OHE on a crossover including knuckle or crossing equipment at both side turnouts or a diamond crossing and parallel clamps for jumper connections between two sets of overhead equipment conductors.
• The price shall also cover maintenance of jumper wire, section Insulator assembly on crossover and all adjustments required at both turnouts of cross over, crossing whenever required.
• The Joint Report/Maintenance sheets to be signed by Engineer in-charge and Contractor’s representative which will be submitted by contractor to DFCCIL centralised office.

Eligibility:

• The tenderer must have successfully completed or substantially completed any one of the following categories of work(s) during last 07 (seven) years, ending last day of month previous to the one in which tender is invited:
  • Three similar works each costing not less than the amount equal to 30% of advertised value of the tender, or
  • Two similar works each costing not less than the amount equal to 40% of advertised value of the tender, or
  • One similar work costing not less than the amount equal to 60% of advertised value of the tender.

The Tender document can be downloaded from IREPS website www.ireps.gov.in and DFCCIL’s website www.dfccil.com

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Source: DFCCIL- Tender | Image Credit (representational): DFCCIL