Enhancement of Power Supply at NAV- AID sites at B.M.Airport, Ranchi. SH - Provision of Ringmain System for NAV-AID Sites.

Amount

Supply of following sizes of XLPE insulated PVC sheathed, Al conductor, armoured, power cable of 1.1 KV grade conforming to IS:7098 (Part I),1988 amended upto date etc complete as required.

3½ X 185 sq. mm

3½ X 240 sq. mm

Supply of 110 mm dia OD ISI marked HDPE pipe as per IS:4984:2016 of rating PE 80, PN 10 complete as required.

Laying of HDPE pipe through HDD method in soil of 110 mm dia OD, upto depth of approx 2 mtr below the ground along with cable as per technical specification and site condition etc as required as per direction of E-I-C.

Laying of HDPE pipe in soil upto 750 mm deep with excavation of soil & back filling , making good the same with accessories like couplers, bends, tee etc. & as per site requirements of size 110 mm OD.

Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of following size in the existing RCC/ HUME/ METAL/HDPE/Masonary Open Duct pipe as required.

Above 95 sq. mm and upto 185 sq. mm

Above 185 sq. mm and upto 400 sq. mm

Laying and fixing of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of following size on wall surface as required.

Above 95 sq. mm and upto 185 sq. mm

Above 185 sq. mm and upto 400 sq. mm

Supplying and making end termination with brass compression gland and aluminium lugs for following size of PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 KV grade as required.

3½ X 185 sq. mm

3½ X 240 sq. mm

Supplying and making straight through joint with heat shrinkable kit including ferrules and other jointing materials for following size of PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 KV grade as required.

3½ X 185 sq. mm

3½ X 240 sq. mm

Constructing of brick masonry chamber of size 1.5mx1.5mx1.5 (deep) inside, in precast cement concrete solid block made from 1:1.5:3( 1 Cement: 1.5 coarse and sand : 3 graded stone aggregate 20 mm nominal size) in cement mortal 1:4( 1 cement : 4 Coarse and sand) including necessary excavation, foundation concrete 1:5:10 ( 1 cement : 5 fine sand : 10 graded stone aggregated 40 mm nominal size) of thickness 100 mm and inside plastering with cement mortal 1:3 ( 1 cement : 3 coarse sand) 12 mm thick, finished with a floating coat of neat cement complete as per standard design and as per directions of E-I-C.

Providing and placing in position 150mm thick, factory made machine batched & machine precast RCC Rectangular Covers on chambers of various sizes of M-25 grade cement concrete for RCC work, including cost of centering, shuttering, reinforcement of 8 mm dia TMT dia bar hooks etc, i/c cost of cartage, all leads & lift, handling at site etc. all complete as per direction of E-I-C. Slab Size - 1.5 mtr x 0.75 mtr.

Earthing with G.I. earth plate 600 mm X 600 mm X 6 mm thick including accessories, and providing masonary enclosure with cover plate having locking arrangement and watering pipe of 2.7 meter long etc. with charcoal/ coke and salt as required.

Providing and fixing 25 mm X 5 mm G.I. strip in 40 mm dia G.I.pipe from earth electrode including connection with G.I. nut, bolt,spring, washer excavation and re-filling etc. as required.

Providing and fixing 25 mm X 5 mm G.I. strip on surface or in recess for connections etc. as required.

Supplying and fixing cable route marker with 10 cm X 10 cm X 5 mm thick G.I. plate with inscription there on, bolted /welded to 35 mm X 35 mm X 6 mm angle iron, 60 cm long and fixing the same in ground as required.

Fabrication & supply of MS transformer housing box of size 350mm x 350 mm x 450 mm (H) made out 6 mm thick MS sheet and top cover 10 mm thick MS sheet as per drawing and all inserts should be suitable for M-10 size bolt shall be of SS including painting of box with one coat of primer & two coats of black enamel paint etc. as per specificaitons as required.

Installation of MS transformer housing box of size350mm x 350 mm x 450 mm (H) including excavation of surface in soil etc , providing one nos. 250 mm long 15 mm dia 'B' class GI pipe in the bottom surface for drainage of water etc., cutting & threading of pipe i/c leveling of housing box with suitable instrument etc. and installation of housing box by providing base cement concrete of 1:3:6 of size 550 x 550 x 150 mm thick, and PCC of 1:2:4 all around the housing box of width not less than 100 mm and making suitable pedestal of 300mm & 100 mm thick & making slope to the level with the surface all around the housing box, painting, lettering, numbring etc i/c disposal of excavated material and making good the same as original complete as required.

Shiva Enterprises (BID ID -929585)

DOSHI ELECTRIC ENGG. CO. (BID ID -928838)

Awasthi Electric Works (BID ID -929679)

SHIVAUR INFRASTRUCTURES AND PROJECT ENGINEERS PVT LTD (BID ID -928650)

SIMPLEX ELECTRICALS (BID ID -929026)