Ext of 11KV line BBFL

Amount

Extension of dedicated 11KV Border line from newly contructing 33/11KV sub-station Durgachowmuhani for flood lighting along Indo Bangladesh Border Fencing at Rajkandi, Kalatilla, Reang Fwd BOP under ESD Durgachowmuhani, ED Kamalpur.(Partial turn-Key)

A. Supply and Erection for extension of 1.0 KM 11 KV border line from newly constructing 33/11 KV Sub-Station at Durgachowmuhani for Flood lighting along Indo-Bangladesh Border fencing at Rajkandi, Kalatila and Reang Forward B.O.P under electrical Sub-Division, Durgachowmuhani ( Partial Turnkey Basis )

B. Supply & erection of 1x100 KVA Sub-Station for providing three phase service at flood lighting along the Indo-Bangla border fencing at diferrent BOPs under ESD's under ESD/Durgachowmuhani ( Partial Turnkey Basis)

C. Supply and Erection and commissioning of for extension of VCB, pannel board, jointing kits and XLPE Cable with bus-bar connection etc as reqd to newly constructing 33/11 KV Sub-Station at Durgachowmuhani for Flood lighting along Indo-Bangladesh Border fencing at Rajkandi, Kalatila and Reang Forward B.O.P under electrical Sub-Division, Durgachowmuhani

i) 12 mtr. Long ST Pole. (Galvanized)

ii) 11 KV/LT painted stay set complete direct in earth with 16mm. dia. 1.8 mtr. long painted stay rod, one side formed an eye and welded with internal dia 40 mm with one thimble and other side of the rod each threaded and fitted with 2 nos. of suitable hexagonal nuts and with one round MS washer of size 40 X 40 X 2 mm complete with MS Anchor plate of size 300 X 300 X 8 mm, dimension with centre hole of 18 mm dia, Turn buckle of length 356 mm. with 250 mm. long threaded adjustable 16 mm. dia. MS strain rod and thimble including supply & erection of 11 KV/LT guy insulator as per IS specification, hot dip (heavy duty) galvanized stay stranded wire of size 7/2.5 mm. grade - IV as per ISS:2141/1979 having minimum tensile strength 700N/mmsq. with Zinc coating (heavy type coating conforming to IS:4826/1979, fastened with stay clamps as required. ( including supply of MS clamp & Nuts & bolts as read) as per TSECL specification) along with black paint.

iii) Supply, erection, testing and commissioning of 11 KV Grade 3-Core XLPE Cable 95 sq mm insulated conductor and insulation screened Alluminium conductor power cable as per IS 7098/11/1985 and latest amendment.

iv) Supply, erection, testing and commissioning of 11 KV indoor heat shrinkable cable jointing kit with lugs for 11 KV grade XLPE Cable for 3-Core 95 sq mm.

v) Supply, erection, testing and commissioning of 11 KV outdoor heat shrinkable cable jointing kit with lugs for 11 KV grade XLPE Cable for 3-Core 95 sq mm.

vi) Supply, erection, testing and commissioning of 11 KV VCB breaker, control & relay pannel rated voltage 11/12 KV rated current 630/800/1250 Amp nos pole 3-poles, frequency 50 Hz with electrical closing mechanism with internal wiring 2 over current & 1 earth fault combine relay, master trip relay, 3 Amp meter, 1 volt meter, CT operated static trajectory meter with downloading facilities (L&T / Secure /Rascal Make) of CTR 100-200,1-1 A with internal earthing facility and internal arc tested for outgoing feeders (Preferably CGL/Pascal).

vii) Triple pole (3 phase), 12 KV, 200 Amp. Manually gang operated, air break switch, 3 post vertical type single brake, complete with post insulator for operation in 11 KV, 50 Hz, AC system as per relevant IS specification with supply of nuts and bolts as required.

viii) 11 KV Polymeric LA suitable for nominal system voltage of 11 KV, 3 phase, 50 Hz, AC supply. Nominal Creepage distance 300mm. conforming to ISS:3070/1985 as per the direction of the Engineer's In-charge.

ix) Earthing with GI Pipe 2.5 Mtr long and 40 mm dia including excavation, refilling with alternate layer of salt & Charcoal as per the drawing

x) Erection of Laying of 8 SWG wire at 300 MM below the ground label for earthing of Sub-station equipment from the earth electrode

xi) 2.5 Meter Long, 40 mm dia GI pipe Make-Tata/ Jindal as per Techinical Specification

xii) Supply of 60 Kg Salt and 55 Kg Charcoal per ( For one Pit)

xiii) 2.8 mtr. long 75X40X40X6 mm. MS channel bracket for G.O.S & D.O. fuse unit on double steel tubular pole or PCC pole including supply of i) 2(two) nos. clamp of 50x6 mm. MS flat, (ii) nuts and bolts as required

xiv) 3.1 mtr. long 65 X 65 X 6 mm. MS angle sub-station bracket along with drilling of holes as required for using as G.O.S Handle support and fixing including supply with (i) 2(two) nos. clamps of 50x6 mm. MS flat, (ii) nuts and bolts as required

xv) 11 KV Polymeric Pin Insulator as per the direction of the engineer In- Charge

xvi) 11 KV Disc Insulator with fittings, nuts & bolts, washers etc. as required complete as per the direction of the engineer In- Charge

xvii) Supply, testing and commissioning of ACSR Weasel Conductor for jumpering including PG Clamps, bi-metallic connectors, hardware etc as per Technical Specification, approved Drawing & Scope of works as required as per IS.

xviii) 11 KV Polymeric LA suitable for nominal system voltage of 11 KV, 3 phase, 50 Hz, AC supply. Nominal Creepage distance 300mm. conforming to ISS:3070/1985 as per the direction of the Engineer's In-charge.

xix) Civil works at control room in the path way of cable trench (l/S)

D. Supply & erection of servise connection equipments for providing three phase service at flood light Sub-Station at B.O.Ps Rajkandi, Kalatila and Reang Forward under ESD/ Durgachowmuhani.

M/s Bhattacharjee Construction