NCTPS I SE MI circle Boiler Maintenance Division Annual Overhaul works for the year 24 25 Specification No 153 24 25

Amount

Charges for scaffolding, including scaffolding material consumable and T&P's.

Renewal of damaged portion of metallic expansion joints Style#01, FS - 2404 x 3102 x 186 mm, Location-FG Duct Inter connection=7.012 Mtrs, and Size-2696 x 4654 x 186 mm, Location-FG Duct above mechanical hopper=10.700 Mtrs and 3062 x 4014 x 186 mm, Location-FG Duct ID inlet, Qty - 02 Nos : 10152 x 02 Nos : 20.304 Mtrs Work involves arresting the upstream and down stream of duct, cutting and removal of existing eroded cover plate and metallic expansion joints; Leading, lifting, positioning of new expansion joints, aligning with the duct channel and complete welding, Fabrication of protection plate (with required profile), fixing inside the Expansion joints and full welding at gas flow side. Including cost of consumables and T&P's.

Renewal of damaged portion of metallic expansion joints Style#02, FS i) Size - 4054 x 3102 x 272 mm, Location-FG Duct Left and right = 10.312Mtrs ii) Size - 2696 x 2467 x 272 mm, Location-FG Duct ESP inlet & outlet, Qty – 8 Nos: 6.326 x 8 Nos: 44.282 Mtrs Work involves arresting the upstream and downstream of duct, cutting and removal of existing eroded cover plate and metallic expansion joints; Leading, lifting, positioning of new expansion joints, aligning with the duct channel and complete welding; Fabrication of protection plate (with required profile) fixing inside the Expansion joints and full welding at gas flow side. Including cost of consumables and T&P's.

Transporting of 6 mm M.S / Checkered plates from central stores to boiler area cutting into required size, leading, lifting, positioning on the eroded portions of the mechanical hopper wall after removal of worn out plates above 1.5 meter level and welding the same inside Mechanical hopper wall area. Including cost of consumables and T&P's. (The Required Materials will be supplied by Contractor)

Charges for leading, Lifting and Transportation of Iron and Steel materials and devoluted to stores including consumables and hire charges.

Corton steel cover Plate for round corner expansion joint: 3.15mm Thick, Grade-A, including loading transportation & unloading (Supply to the NCTPS stores. The contractor should inspect the site in overhaul to ascertain the actual requirement of Iron & Steel material and as per the direction of Engineer in charge) (The materials will be supplied by TANGEDGO if available at stores during execution of works)

Corton steel cover Plate for mechanical hopper: 6mm Thick, Grade-A, including loading transportation & unloading (Supply to the NCTPS stores. The contractor should inspect the site in overhaul to ascertain the actual requirement of Iron & Steel material and as per the direction of Engineer in charge) (The materials will be supplied by TANGEDGO if available at stores during execution of works)

T K CHITI BABU (BID ID -1125339)