CONSTRUTION OF 400KV BAY FOR 125MVAR 400KV BUS REACTOR

Amount

Construction of 400KV Bay for 125MVAR 400KV Bus Reactor (M/s. BHEL make) alongwith other associated Works at 400KV Sub Station Sarnath, Varanasi, with all Cost of Men, Misc. Consumables, T&Ps, Crane / Hydra, etc. Required for Satisfactory Completion of the Job, as per Technical Specifications & Direction of the Supervising Engineer, as per Details below :

Erection of 400KV ERW Pipe type Auxiliary Structures including Shifting, Loading and Unloading along with complete accessories from the Stores to the Erection site.

Erection of following Equipments (to be Provided by Department as per Requirement) including their Shifting from Storage Place at the Sub Station to Erection Site :

400KV SF6 Circuit Breaker along with Structure and Control Cubical with all accessories complete.

400KV Current Transformer with Junction Box

400KV Standard Isolators with Two Earth Switch.

400KV Pantograph Isolator with one Earth Switch.

400KV Pantograph Isolator without Earth Switch.

400KV Bus Post insulator.

400KV Control Panel.

400KV BMK.

Jumpering Work between 400KV Jack Bus to 400KV CT by Twin ACSR Moose Conductor including Cutting, Bending etc. as per site requirement to complete the Job Satisfactorily.

Erection of 4” Aluminium Pipe (IPS Tube) with Laying between Equipments & Post Insulators with due proper (aluminium pipe will be provided by the department) Cutting of pipe of required Length by fabrication of Aluminium Pipe including Bending, Cutting, Shaping & Breezing work alongwith interconecction of Bay Equipments & Post Insulators with 4” Aluminium Pipe (IPS Tube) by suitable Clamp, Connectors, Hardware Fittings etc. (3x115 Meter Long 400KV Side)

Laying of following size Armoured Control Cable in Control & Relay Panel in Control Room and various equipment such as BMK, C.T., J.B. etc. in switch yard making the hole of proper size fixing of glands and providing of ferrules and then wiring the same as per drawing, including dressing of control cable and numbering on cables.

Termination of above Laid Control Cables as per Schematic Drawing & Cable Schedule including proper Ferruling, Dressing, Tying and Tagging of Cables. (Both ends Termination of Control Cable will be considered as 1 No.)

Earthing of Auxiliary Structures, Equipments, Cable Racks with suitable size of M.S. Flat and then Cleaning & Painting of M.S. Flats for Satisfactory Completion of the Job, as per Technical Specifications & Direction of the Supervising Engineer, Earthing of 400KV Bay Equipments with suitable size M.S. Flat, alongwith Excavation of Earth, Cutting, Laying, Bending & Welding and Painting inside ground below 700mm for 400KV C.T., C.B., Standard Isolators, Pantograph Isolators etc. including earthing with Main Earth Mat and with Object to be Earthed, backl filling of Soil to completing the Job satisfactorily as per following size.

Laying of MS Flat of size 75 mm x 10 mm

Laying of MS Flat of size 50 mm x 6 mm

Earthing of Grounded Cable racks in the existing cable trenches of 400KV Bay. The work covers earthing of angle Iron Cable Rack by means of 25 mm x 6 mm M.S. flat including Cutting, Straightening, Laying & Welding on Racks, which will run continuous on each and every Bottom, Top & Middle Rack of Trench and it should be connected at distance of every 750 mm on the continuous running Bottom MS Flat.

Connection of Cable Racks with earth mat at every interval of 30 Meter distance by means of 25 mm x 6 mm M.S. flat after soil excavation (700mm below ground) by due Cutting, Bending, Laying and Welding at Round Bars inside ground and Cable Rack to be earthed, then back filling of soil.

Painting of following sizes M.S. Earthing Strips by Rubbing with Sand Paper & Wire Brush, then Painting with 1 coat of Red Oxide Primer & 2 coats (The 2nd coat of Paint shall be applied at the gap of 48 hrs. when 1st coat of Paint is done & Checked by concerned A.E. / J.E.) of 1st quality Synthetic Enamel Paint of Asian / Berger / Nerolac make in Bus Green Colour as per following size.

75 × 10 mm size M.S. Earthing Strip.

50 × 6 mm size M.S. Earthing Strip.

25 × 6 mm / 25 × 5 mm size M.S. Earthing Strip.

Laying of 3.5 Core x 400 mm2 size Power Cable 500mm below ground level including excavation of Trench and Laying of Cable, putting of brick and filling of Ganga sand over the cables then filling of earth with all cost of men, material and T & P for the completion of Job.

Termination of above Power Cable by providing suitable size aluminium dowell make lugs its crimping and connecting with equipment including cost of lugs and all other associated work to complete the job.

Supply of following Materials for Construction of 400KV Bay for 125MVAR 400KV Bus Reactor as per Technical Specifications, as per Details below :

Expansion type connector suitable for 4” IPS aluminium tube for 400KV Bus Post Insulator both end connecting the 4” aluminium tube along with HDG nut & bolt duly fabricated as per technical specification.

Through type ( single sliding ) connector for 4” IPS tube for 400KV Bus Post insulator suitable for 4 “ IPS aluminium tube along with HDG nut & bolt duly fabricated as per technical specification.

Fix type (double sliding) connector for 4” IPS tube for 400KV Bus Post insulator suitable for 4 “ IPS aluminium tube along with HDG nut & bolt, washer as per technical specification.

Bimetallic Expansion Type Terminal connector made of LM-6 alloy with GI Nut, Bolt and washer one side suitable for 4” IPS tube another side connecting suitable for 400KV CT as per technical specification.

Bimetallic Rigid type Terminal Connector made of LM-6 alloy with GI nut bolt and washer one side suitable for Twin Moose conductor and another side suitable for 400KV CT as per technical specification.

Rigid type terminal connector made of aluminium alloy LM-6 for 400KV Pantograph Isolator one side connecting the Isolator pad along with 04 No. 16mm dia hole another side connecting the 4” IPS aluminium pipe as per technical specification.

Expansion type terminal connector for Twin Tarantula Conductor made of aluminium alloy LM-6 for 400KV Pantograph Isolator one side connecting the Isolator pad along with 4 No. 16mm dia another side connecting the 4” IPS aluminium pipe as per technical specification.

Bimetallic Rigid type terminal connector made of aluminium alloy LM-6 for 400KV Standard Isolator one side connecting the Isolator rod another side connecting the 4” dia IPS aluminium pipe as per technical specification.

Expansion type terminal connector made of aluminium alloy LM-6 for 400KV Circuit Breaker one side connecting the Breaker Pad with 12mm dia hole another side connecting the 4” dia aluminium pipe complete with HDG nut, bolt & washer as per technical specification.

Supply BMK with canopy for outdoor installation of size 1500 mm x 800 mm x 300 mm with MS sheet thickness 14 SWG dully powder coated of good quality BMK should be fixed 160 No. connector of 16 Amp on channel gland plate with 20 No. cable gland of different size from 10 to 2 core cable with Provision of heater and indoor lighting fitting 16 Watt CFL BMK with two side door (Front & Back) BMK shall be weather, dust & vermin proof with proper locking arrangement with base as per technical specification.

Meena Elect and Engg Works

Gupta Elect and Engg Works