Fabrication Works Tenders

FABRICATION Fabrication works for cold flow tests with weld as per Specifications in Annexure-1

Dismanatling of existing old/worn out of one Boiler Chimney and fabrication & Erection of New one Boiler Chimney as per Drawing No. V2 BR- 321 identical to the existing chimney of 40 Mtr, Height:- Dia from Bottom upto 10 Mtr- 2.8 Mtr. to 2.2 Mtr Dia above 10 Mtr- 2.20 Mtr apto 40 Mtr. Thickness of MS plate to be used for fabrication of Chimney shells will be 8/10/12mm size; The Welding is to be under taken from both inner & outer side of the shells, The provision of ladder and two working plateform throught of the height of the chimney with connection of ducting of two Boilers as per existing size, Providing MS channel of ISMC 200 in four side of throught the chimney from bottom to Top of the chimney. One coat of the primer and Two coat of Aluminium paint on outer surface of the chimney and one coat of Anti Corrosion paint in side the surface of the chimney, providing earthing strip from top to bottom with Trisul on Top also includes the scope of work.

Design, Supply, Installation, Testing and Commissioning of cubical type Main L.T. panel suitable for 415V, 3 Phase, 4 wire, 50Hz AC supply system fabricated in compartmentalized (perferably) designed from CRCA sheet steels of 2mm thick for frame work and cover, 3mm thick for gland plates, face area 3.2 sqmtr and 1000mm deep including cleaning and finishing complete with 7 tank process for powder coating in approved shade and having 2500Amp capacity extensible type TPN copper bus bars of high conductivity, DMC / SMC bus bar supports, with short circuit withstand capacity of 31MVA for 1 Sec. bottom base channel of MS section not less than 100mm x 50mm x 5mm thick, fabrication shall be done in transportable sections, entire panel shall have a common copper earth bar size of 50mm x 10mm at the rear with 2 Nos. earth stud, solid connections from main bus bars to switchgears with required sizes of copper bus bar and control wiring with 2.5sq.mm. PVC insulated copper conductor S/C cable, cable alleys, cable gland plates in two half including providing following switch gears :- INCOMER TPN copper bus bars of minimum 2500 Amp capacity with shrinkable coloured sleeves and including DMC / SMC bus bar supports at required intervals complete for cross section, size supports and their spacing etc. for withstanding fault level of 31MVA for 1 Sec. OUTGOING 2 Nos. 1600 Amps four pole horizontal Drawout type Air Circuit Breaker for fault breaking capacity of 50KA (ICS = Icu upto 433 Volts) manually operated, fitted with interlocked door, automatic safety shutters, mechanical ON / OFF and service / test / isolated position indicators and frame earthing contact, conforming to IS : 13947-2, 1993 as amended upto date complete with following accessories for each ACB.