ERECTION AND COMMISSIONING OF 11 kV CG SWITCH BOARD AT CENTRAL SUBSTATION OF FACT-CD, AMBALAMEDU

ERECTION AND COMMISSIONING OF 11 kV CG SWITCH BOARD AT CENTRAL SUBSTATION OF FACT-CD, AMBALAMEDU

Dismantling of the existing 11kV Heavy Electricals panels at Central Substation ground floor and transporting it to scrap yard or elsewhere in the complex as directed by the engineer. Before transporting to scrap yard, contractor needs to remove busbars, switches, indications lamps and relays. The scope include proper identification and tagging of power / control / earth cables, disconnection of cables, dismantling of panels after removing bus bars links from panels / breakers, lifting using crane/chain block ,loading / unloading, transporting of dismantled items to locations as directed by the engineer and clearing the site. Necessary facility of vehicles / Heavy equipment services/tools and tackles shall be arranged by the contractor himself if facilities/tools/vehicles and cranes available in FACT CD is insufficient for executing the work. If FACT's facilities/tools/vehicles and cranes is required, it will be issued free of cost based on the availability of same.

Unpacking, transportation and erection of new Crompton Greaves make 11kV panels at NP MCC, following the GA drawings and as per direction from site engineer / commissioning engineer of OEM/Supplier. Scope includes leading, positioning, alignment, fixing, bolting panels on the ground, mechanical & electrical inter panel connections etc. After removing old panel, if mounting area is uneven or have any gradient, same shall be rectified by removing PCC and applying a sufficient layer of new PCC to provide an even flat surface (all the material supply required for PCC work and panel fixing will be in contractors scope). New panel is kept in CD main store .Contractor will have to transport panel safely from CD main store to work site. Vehicle for transportation and crane for loading and unloading at site will be issued by FACT free of cost based on availability. If crane available in CD is not suitable for leading panels inside substation suitable, crane shall be arranged by contractor.

Laying / Rerouting, clamping of control cables of size up to 19x2.5sq. mm in one panel section. The scope of work includes laying / rerouting of cables through cable trays/risers/built-in trenches and clamping the cable at regular intervals, not exceeding 500 mm. All materials required shall be supplied by vendor.

Laying /rerouting, clamping of earth cables of size up to 1x400sq.mm in one panel section. The scope of work include laying / rerouting of cable through cable trays / risers / built in trenches and clamping the cable at regular intervals, not exceeding 500 mm. All materials required shall be supplied by vendor.

Carrying out straight joint on 11KV, 3x300 sqmm, XLPE, armoured aluminium power cable using heat shrinkable type straight through joint kits(supply of Denson/3M/RAYCHEM make kit is in contractors scope).All materials required shall be supplied by vendor. Rerouting of cables in sand filled trench and cutting and transportation of cable piece from cable yard/store will be in contractors scope.

Carrying out end termination on 11KV, 3x300 sqmm, XLPE, armoured aluminium power cable using heat shrinkable type end termination kits(supply of Denson/3M/RAYCHEM make kit is in contractors scope). All materials required shall be supplied by vendor.

Glanding and termination of Control cables of various sizes up to 19 x 2.5 sq.mm. The scope of work includes glanding , termination and connection of cables with suitable cable lugs, ferrules, arranging and dressing the leads / cables and clamping the same at regular intervals in trays / risers not exceeding 500mm.

Concrete floor cutting: New position of control cable/power cable entry is different from existing panel, so necessary concrete floor cutting required for routing control/power cable shall be done by contractor. Arranging necessary tools for the concrete cutting and finishing of cut trench using suitable materials (supplied by contractor) will be in contractor's scope.

Interconnection of control wiring such as DC control supply link, annunciation interconnection etc. as per the drawing and the testing of the same. The cables will be supplied by FACT free of cost. All other tools & items required for the completion of the work is under the scope of the contractor. Contractor need to mark SLD of panel in front of panel using black paint/sticker works.

Supply and installation of following items: 11KV danger board, 2 sets of 11KV glove, Two number of 2000W Black & Decker/Bosch/Stanley make heat gun. Two number of compact 37 socket set with ratchet. Make : Stanley/Taparia/Force/Black & Decker/Bosch.

VIKRAMAN NAIR S

Dinu Electricals