Construction of 1 no. 160 MVA Transformer Bay at 220 KV GSS Chhonkarwara

Amount

Supply & fixing 30 mm thick ferro cement RCC cable trench covers up to span 1200mm CC Grade <-25 (1 cement: 1 Course sand : 2 graded store aggregate 20mm nominal size) having outer frame of M.S. Flate 30.x3 mm and reinforcement consisting of 6mm dia M.S. round bar both way at the spacing of 8 to 10 cm C/C as required to adjust the spacing welded with outer frame and binding with binding wire in middle with two layers G.I. wire mesh 12mm shape of 24 gauge including proper quantities of concrete additional admixture like plasticizer, bond improving compound etc. manufacture with vibro pressing system,20% cover shall have lifting hooks of 10mm dia plain round bar to be fixed as directed M.S. flat/hooks exposed shall be painted with two coats of superior quality corrosion resistance paint. The above covers shall to take for live load of2000 kg/ sqm and minimum ultimate load of 3000kg/sqm under defection not exceeding L/25(Excluding GST and inclusive of transportation charges upto 10.0 K.M. lead)

Labour charges for spreading of available 20 to 63 mm nominal size hand/ crusher broken stone aggregates in uniform layer of 100 mm thickness in yard of any sustations with manual/ mechanical means, as per safety norms of substations complete in all respect with all lead and lift. (payment shall be done as per stack measurement, after deduction of voids as per norms) (APRROVED BY CE CIVIL )

Labour charges for collection of existing spreaded 20- 63mm nominal size Hand/ Crusher broken stone aggregate of any thickness from substation yard by manual / mechanical means, as permitted by the Engineer in charge, with due care, as per safety norms of substation. This aggregate should be screened & stacked properly. Then this screened aggregate shall be laid in 100mm thick layer in yard as directed, with due care with all, lift. (payment shall be done as per stack measurement, after deduction of voids, as per norms)