Laying of 33 KV 1x630 sq.mm XLPE UG cable from 230KV TNEB Headquarters SS to the Spencer Plaza 33/11 KV SS (Route length 1.10 Km)

Amount

Removing the black topping of 30cm thickness and forming cable open trench and cable duct at road crossing 60 cm wide and 135 cm deep (clear) including cost of using machinary providing danger lights, indication arrangements wherever necessary labour, lead, lift, tools and plants etc., complete. The removed Tar blacks, RCC/PCC and other debris shall be removed from site before the start of excavation of trench.

Earth work excavation in all soils to a depth from 31cm to 135cm including slush and silt under water requiring the aid of basket and vessels and forming cable trench and cable duct including cost of signal boards, danger lights, indication arrangements wherever necessary and providing shoring and strutting arrangements wherever necessary all labour, lead, lift, tools and plants etc., complete. The excavated earth should be placed in one side of trench preferably on foot path side, not to obstruct free flow of traffic

Earth work excavation in all soils only (no tar / PCC / RCC removal ) for breadth of 60cm and to a depth of 135cm from including slush and silt under water requiring the aid of basket and vessels and forming cable trench and cable duct including cost of signal boards, danger lights, indication arrangements wherever necessary and providing shoring and strutting arrangements wherever necessary all labour, lead, lift, tools and plants etc., complete. The excavated earth should be placed in one side of trench preferably on foot path side, not to obstruct free flow of traffic

Drilling, Reaming & Laying of 33KV Cable (3Nos.) using Trenchless Technology Method at a depth of about 1.5m or more by using directional drilling unit equipped with automated pipe handling system (Horizontal Directional Drilling Machine), using bentonite mud mixing system and all necessary accessories using pulling the cable carefully without damaging other service like telephone, internet cables, water pipes etc., installation including cost of pipe, hire charges for all the accessories and equipment etc. taking the necessary drive pit for drilling & laying the cable, remove the excavated earth. The rate quoted for including the charge of GPR (Ground Penetrating radar) Survey for identifying the existing utility in the proposed bore path.

GPR Survey

Drilling profile drawing

Soil test(Once in every 200 meters)

Test /Drive/Exit pit soil Excavation

Drilling (Piloting)

Fluid process (including mud Engineer consultation)

Pre Reaming

Laying of cable

As built drawing (actual)

Dismantling the brickwork, PCC, RCC inside the cable trench and cable duct wherever occur of any thickness and clearing trench/duct free from debris and without hindrance to the cable and cable laying work including leads, lifts, labour, tools & plants etc., complete.As per direction of Engineer - in - charge

Dismantling BW in CM - 1cum

Dismantling PCC -1 cum

Dismantling RCC - 1cum

Providing M.S. barricading 1.5m Height Using M.S Sheet 4 mm thick MS Angle 50 x 50 x 8 mm mm Base Channel 100 x 50 of all materials, leads, lifts, labour,welding and Erection , Transporting at site, Placing in position, Shifting to New Location after completing works, Tools, & Plants etc., Complete

Removing of RCC cover slab over the RCC duct whevever necessary for placing the cables,stacking safely for re-use and refixing in position of the RCC cover slabs after placing the cables in the existing RCC duct including all labour,lead,lift,etc., complete.

Suplply and Laying of 140 mm dia PVC Pipes , cutting and jointing the pipe, tieing with 7/20 SWG G.I.Wire inside the pipe and closing the ends with End cap including cost of PVC Specials, labour, lead, lift , T&P etc ,. Complete.

140 mm dia PVC Pipe supplied by the contractor along with laying

140 mm dia PVC Pipe supplied by the TANGEDCO along with laying

Laying plain cement concrete 1:3:6 using 20 mm BG Metal for bottom portion of trench for fixing PVC Pipe in the cable duct in proper alignment and level as per the standard specification including cost of all materials , labour, lead, lift etc ,. Complete.

Transporting of 33 KV Cable drums inlcuding cost of Loading at stores, unloading of 33KV cable drums each weighing approximately 7T in lorries using truck mounted crane for both loading and unloading including cost of labour required, etc.,(3 drums at a time)

Laying of 1x630 Sq.mm 33KV XLPE UG cable by means of winch over rollers provided by the contractor. The rate includes the cost of pulling the steel wire rope from winch side to drum side, providing labour as required at site for tying the cable in trefoil formation with nylon rope etc., complete.

Refilling with filling sand in layers well consolidated as per std. specification including cost of all materials, labour,lead, lift etc., complete.

Suplply and Laying of RCC cover slab (60cmx50cmx5cm) inclusing cost of slab ,stencilling and laying carefully as directed by the Engineer including cost of all materials, labour, lead, lift etc,. Complete.

Rcc cover slab supplied by the contractor along with laying

Rcc cover slab supplied by TANGEDCO (laying only)

Refilling with excavated earth in layers and well consolidated as per std. specification including cost of all materials, labour,lead, lift etc., complete.

Transporting and clearing the excess excavated earth and debris then and there immediately to avoid any hinderence to the normal flow of traffic and public beyond a distance of 5km from work spot as per the direction of Engineer-in- charge including loading and unloading etc., complete.

Transporting of 33KV empty drums loading at site, and devolution of empty 3KV steel cable drum each weighing 1 to 1.5T from various work site (2 drums at a time) and balance cables if any to departmental stores

Providing watch and ward (Unskilled) at site as instructed by the site -in-charge.

Bailing out of water from cable trench and duct while excavating and also while laying cable using 5HP diesel pump including cost of fuel, operator etc., complete.

Providing 18 gauge aluminium strip with Nylon tie at 10m intervals for engraving voltage level, size of the cable, name of the feeder including cost of all materials, labour charges, transportation charges, etc., complete. (Every 10m intervals)

Casting & placing of RCC offset slab (cable route indicaton slab) of size 750x750x60mm casting in RCC 1:2:4 using 12 to 20 mm HBG metal with necessary reinforcement, piling, shuttering, curing, transport from casting yard to various locations & fixing the slab along 33 KV cable route as directed by site Engineer with PCC 1:3:6 including cost of all materials, labour, lead, lift etc including 2 coats of flourescent painting. (TANTRANSCO RATE)

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