Restoration Work of 06 Nos. Towers of 400kV D/C Barmer-Akal Line

Tower-Fabrication, galvanising and supply of various types of towers (including special towers), & its body / leg (equal & unequal) extensions (complete) including stubs and hangers, D-shackles, Bird Guard, U-Bolt, Pack washer etc.

High Tensile Steel

Mild Steel

Supply of Bolts & Nuts for towers and stubs (including step bolts & nuts and anti theft bolts & nuts)

Supply of Earthing material of Towers

Counterpoise Type

Supply of following items for Aviation Requirements **

Span Marker

Obstruction lights(To be proved as per IS:5613)-a) 1 Medium + 2 Low intensity

Design, manufacture and supply of following line material. *** 11/kv 120 KN

Composite Long Rod Insulators

Design, manufacture and supply of following line material. *** 11/kv 160 KN

Composite Long Rod Insulators

GSS Earthwire- size 7/3.66 mm

Hardware Fittings

Single suspension H/W fittings conventional envelop type complete set suitable for ACSR 'MOOSE' conductor for pilot string (suitable for 1x23, 120 KN Disc Insulators or 1x3 Long Rod Insulators).

Single 'I' suspension H/W fittings armour grip type complete set suitable for Twin ACSR'MOOSE' conductor (suitable for 1x23, 120 KN Disc Insulators or 1x3 Long Rod Insulators).

Single 'V' suspension H/W fittings armour grip type complete set suitable for Twin ACSR'MOOSE' conductor (suitable for 2x23, 120 KN Disc Insulators or 2x3 Long Rod Insulators).

Double tension H/W fittings compression type for Twin 'MOOSE' conductor (suitable for 1x24, 160 KN Disc Insulators or 1x3 Long Rod Insulators).

Accessories for ACSR Moose Conductor

Mid Span Compression Joint for ACSR Moose conductor

Repair Sleeve for ACSR Moose conductor

Vibration dampers for 'MOOSE' conductor

Line spacers with retaining rod for Twin 'MOOSE' conductor

Spacers for jumpers without retaining rod for twin 'MOOSE' conductor

Accessories for Earthwire

Vibration Damper for 7/3.66 mm GS Earthwire

Mid Span Compression Joint for 7/3.66 mm GS Earthwire

Suspension Clamp with flexible Copper Bond for 7/3.66 mm GS Earthwire.

Tension Clamp with flexible Copper Bond for 7/3.66 mm GS Earthwire

Repair Sleeve for 7/3.66 mm GS Earthwire

Description of Work / Item(s)

Detailed Survey, including route alignment, profiling, tower optimization & spotting, check survey and Geotechnical Investigations etc.

Setting of stub excluding cost of excavation and concreting but including back filling.

a) Tangent tower

c) Medium angle tension tower

d) Large angle tension tower

Excavation excluding back filling, including shoring, shuttering, De-watering etc. for

a) Normal Dry

b) Wet/Sandy soil

c) Soft/disintegrated rock

d) Hard rock (blasting prohibited)

e) Hard soil/ Soil mixed with bouldersl

Providing and laying cement concrete M- 20 grade 1:1 1/2:3 with single sized aggregate of nominal size 20 mm including preparing surfaces, shuttering mixing, placing, temping curing and finishing with leads and lifts etc. as per specification and drawings.

Providing & laying cement concreting M-10 grade 1:3:6 with single nominal size 20 mm including preparing surfaces, shuttering, mixing placing, temping curing and finishing with leads and lifts etc. as per specification and drawings.

Supply, Cutting, bending, binding, welding of joints if required, fixing and placing of steel reinforcement of Fe 500 grade as per specification and drawings

Erection of all types of super structures towers, their extensions and special towers etc. with its bolts, nuts and washers and bird guard etc.

Erection of Anticlimbing devices.

Fixing of danger plate, circuit plates, number plate and phase plates etc.

Mounting of insulators and stringing of six Nos. twin bundle Moose conductor including laying, jointing, tensioning. Sagging, clamping and fixing of all line accessories etc.

Stringing of two Nos. 7/3.66 mm galvanised steel wire including laying, jointing. tensioning etc.

Earthing of Transmission Line Towers - By counterpoise type earthing sets, excluding cost of all materials

Rates for Tack welding of Bolts & Nuts upto bottom cross arm of the tower

Erection of globules (Day marking sphere) 600 mm dia conforming to the latest ICAO regulations suitable for clamping on stranded steel earthwire alongwith the clamp etc. complete in all respect.

Erection, testing and commissioning of Aviation Warning Light System in accordance with IS-5613, with one medium and two low intensity aviation warning lights.

Painting of tower above 45m from ground level for Aviation purpose

Dismantling of Tower Parts

Destringing