Construction of chimney as per CPCB guidelines along with associated electrical work for Barrackpore Regional Office-cum-Lab Complex of West Bengal Pollution Control Board

Laying and Jointing PVC Pipe. Heading

Exhaust system including supply and installation of required size MS Black Pipe (Class B) complete with necessary bends, flanges, and fittings. MS vertical exhaust pipe of required size and thickness (ID: 80 mm, OD: 88.9 mm) complete with bends and flanges. Thermal insulation on both horizontal and vertical sections using mineral wool of required thickness, covered with wire mesh and aluminium cladding of appropriate gauge. MS self-supporting structure for exhaust piping, aluminium cladding of residential silencers, flexible bellows, and provision of lightning arrestors, considering a single exhaust stack.

Extra for providing masonry enclosure on the top of the earth electrode of overall size 86.36 cm x 86.36 cm x 46 cm deep (below Ground level) complete with cemented brick work(1:6) of 25 cm width duly plastered with cement morter (inside) CI hinged inspection cover of size 36.56 cm x 35.56 cm with locking arrangement, GI reducer including drilling of 46 nos. 12 mm dia holes on the GI pipe.

Maintenance-free Chemical Earthing with dual pipe flat Technology, 80 mm dia. 3 meters long with a chemical Compound. Model: G803

Supplying and fixing vertical run of 25 mm × 6 mm GI flat on wall using proper saddles spaced not more than 2'-0" (0.6 m) apart, including making bolted connections with air terminals and mending all damages, complete in all respects and inclusive of hiring charges for scaffolding as required.

Supplying and fixing 25 x 6 mm GI flat from earth installation to test point partly 30 cm below ground level and partly above ground on wall including supplying and fixing 40 mm bore GI protection pipe (Class-B) filled with compound and making connection at terminal ends with nuts, bolts and washers etc and mending good the damages.

Please Enable Macros to View BoQ information