Erection of Nuclear Reactor Systems, Turbine systems including Generator and Condenser, Sea water systems, Polar and Trestle Cranes and other related systems and equipments along with accessories, piping, supports, metal structures, painting, KK 5 6

NI SCHEDULE -A Reactor components, Primary system equipments, piping and special structures erection works in Reactor Building

Erection and welding of Reactor, Reactor Internals, Reactor cavity and Inspection well equipments / components: Receipt of materials, Handling from crane pad area (Unloading point ) to erection location, preparation of erection schemes, uncrating, preparation of IMIR (incoming material inspection report), depreservation, trial assembly, shifting, lowering & installation in design position using contractor / NPCIL crane, scrapping and blue matching of seating surface, erection, alignment using optical survey, fit up, welding, torque tightening/stud tensioning to the required value by hydraulic torque wrenches, inspection as per drawings and technical specifications. This work also includes removal of nozzle protection covers, cleaning & optical survey of embedded parts, precision grinding, assembly and erection of components / supports, assembly of special equipment & tools supplied by manufacturer, providing optical instruments, tools and tackles such as slings, D shackle & bow shackle, hydraulic power pack with nut drivers, plant & machineries, consumables, scaffolding at all levels, providing manpower, painting of welded area of equipment, preparation and submission of reports & as built details for NPCIL acceptance for following items. Note: 1.FIM (Free Issue Materials) as per the list provided in Module-1 NI Package Section-V shall be transported from warehouse to erection site (Unloading point) by NPCIL. Transportation of all other FIM from ware house to erection site or fabrication shop, fabrication shop to erection site is in the scope of Contractor and payment shall be made through separate item (Common Schedule - A , Item No. - 1.0 ). 2. Heavy Duty Crane will be provided by NPCIL for handling the equipments (FIM) for unloading and erection at designated erection location as per the list provided in Module-1 NI Package, Section-V. 3. NDE of weld joints as applicable shall be paid through separate item ( NI Schedule - B , Item No. 3.0 ).

Erection, Assembly by surface grinding /milling operations, achieve required flatness accuracy, scraping of seating surface, blue matching , precision alignment, welding & inspection of Support Ring & its accessories , Thrust ring & its accessories and Reference specimen blocks in RPV and PTU as per drawings and technical specifications. Precision leveling, achieve flatness and surface blue matching involved extensively all the contact surfaces of the assemblies , wedges and locks in situ as detailed in Technical specification and working documents. Note: Refer clause 1.4.1.26 , 1.4.3.14 & 1.4.4.9 of Chapter-B, Module-1 NI Package, Section-V to assess the quantum of blue matching works and welding works involved.

Erection of Reactor pressure vessel (Aprox. weight 317MT x 2), Core Barrel (Aprox. weight 76MT x 2), Core Baffle (Aprox. weight 36MT x 2), Protective Tube Unit assembly (Aprox. weight 69MT x 2), Upper Unit assembly (Aprox. weight 96MT x 2), separating bellows, parts of main seal (RPV main stud, nickel gasket, washer & Nut ) and its accessories including assembly & trial assembly of RPV internals. This work also includes assembly of components supplied in separate parts for core baffle & upper unit, installation of Core barrel & upper unit inside RVI wells, erection of assembled core baffle inside core barrel and erection of all internals inside RPV as per drawings and technical specifications. This work also includes trial assembly of core barrel, core baffle, PTU and upper units multiple times as per the requirement of work in reactor and reactor inspection well including welding of components and separating bellows. Note: Refer clause 1.4.4.9 & 2.20.3 of Chapter-B, Module-1 NI Package, Section-V to assess the quantum of welding works involved.

Erection and welding of Reactor cavity equipments such as alignment guides for upper unit, protective steel structure, Electrical equipment and Heat control of Reactor (CPSAR) drives, Thermal insulation and Biological Shielding of RPV Nozzle Area, Upper Unit Thermal Insulation, Detection Unit Motion Mechanism (JKT drives), Device for Incore Instrumentation Detection Withdrawal (jib crane) and their accessories as per drawings and technical specification. Note: Refer clause 3.13.10 of Chapter-B, Module-1 NI Package, Section-V to assess the quantum of welding works involved.

Erection and welding of inspection well equipments such as guide alignment system of Core Barrel & PTU (protective tube unit), Core Barrel transportation device, PTU transportation platform , PTU spacer, PTU hatch, Racks for electromagnet Unit, Racks for drive Housing, Racks for moving units & CPS drive extension shafts, Racks for pitch position indicator, Platform for examination of upper Unit, Air duct, Ladder, Pulley Assembly, Cone and cover centering block and other components as per drawings and technical specification. Note: Refer clause 4.6 of Chapter-B, Module-1 NI Package, Section-V to assess the quantum of welding works involved.

Trial Assembly, final assembly, commissioning & operation of special equipment & tools supplied by the equipment manufacturer such as mounting traverse, universal traverse, RPV turning bed (cradle and rest ), Platform for RPV neck, steam generator mounting traverse for performing erection of above equipment as per drawings and technical specifications. Note: Payment will be made one time per item per unit.

Erection and welding of Steam Generator assembly(JEA): Receipt of materials, Handling from crane pad area (Unloading point ) to erection location, preparation of erection schemes, handling, transportation, uncrating, preparation of IMIR, depreservation, trial assembly, shifting, lowering & installation in design position using contractor/NPCIL crane, erection, alignment and optical survey, fit up, welding, torque tightening/stud tensioning to the required value by hydraulic torque wrenches, inspection as per drawings and technical specifications. This work also includes removal of nozzle/manhole protection covers, cleaning & optical survey of embedded parts, trial assembly, assembly and erection of supports, providing tools and tackles such as heavy duty hydraulic jacks, optical survey instruments, plant & machinery, consumables, scaffolding at all levels, manpower, painting of welded area of equipment, preparation and submission of reports & as built details for NPCIL acceptance for following items. Note: 1.FIM (Free Issue Materials) as per the list provided in Module-1 NI Package Section-V shall be transported from warehouse to erection site (Unloading point) by NPCIL. Transportation of all other FIM from ware house to erection site or fabrication shop, fabrication shop to erection site is in the scope of Contractor and payment shall be made through separate item (Common Schedule - A , Item No. - 1.0) 2. Heavy Duty Crane will be provided by NPCIL for handling the equipments FIM for unloading and erection at designated erection location as per the list provided in Module-1 NI Package Section-V. 3. NDE of weld joints as applicable shall be paid through separate item ( NI Schedule - B , Item No.- 3.0 ).

Erection of steam generator (Aprox. weight 310MT x 8) and steam generator support assembly (Aprox. weight 60MT x 8) consisting steam generator lifting arms, journals, roller support assembly, foundation bed, saddle support, studs, cross piece, couplings, check nuts, height adjustment shim plates, gaskets etc,. This work also includes welding of lifting journals & arms with preheating, inspection as per drawings and technical specifications. Note: Refer clause 6.6.11 of Chapter-B, Module-1 NI Package, Section-V to assess the quantum of welding works involved.

Erection of accessories of steam generator such as single chamber and double chamber surge tanks and its supports, connecting tubes, spacer pipe, steam generator collector covers with displacers, studs, nuts, washers, RTD housing, nozzles, manhole covers, axle, data boards etc, including welding as per drawings and technical specifications. Note: Refer clause 6.6.11 of Chapter-B, Module-1 NI Package, Section-V to assess the quantum of welding works involved.