ELECTRICAL WORK

Amount

Work Portion:- Erection of Main & Auxiliary structure lattic type / ERW Pipe type ( RTD, RTP, RTG, RTF, RTA, TMA), etc. consisting of coloumn, beam, peak, mast etc. and auxilary structure for installation of CTs, PTs, LAs, etc. The job consist of shifting of all material from store to site of erection, erection of structure as per drawing with the help of GI nut & bolt, flat & spring washer, matching the hole, cutting & matching of member if required including cost of all men and T & P excluding GI structure Nut & bolt to complete the work. Erection of Main & Auxiliary structure lattice type/ Pipe type BCT, ALP etc. upon foundation and its proper tightening.

Sorting and stacking of main & auxilary structure.

Febrication of Main Structure for hight Rising RTP upon RTD including cutting of structure, febraction including holes (Angle to be arrange by Depatmant).

Making hole in part of GI main/auxilary structre / cutting of GI angle drilling of hole existing/ deffective structure /plate/Angle and grinding machine with all cost of men, T & P etc.

Erection of 245 KV SF-6 Circuit Breaker.

Erection of 245 KV Bus / Line Isolator ( Motorised )

Erection of 245 KV Tandam Isolator ( Motorised )

Erection of 145 KV SF-6 Circuit Breaker.

Erection of 245 KV Current Transformer.

Erection of 145 KV PotentialTransformer.

Erection of 145 KV Current Transformer.

Erection and mounting of 245/145 KV CT,PT Junction Box.

Erection of 145 KV Bus Isolator and Section isolator without earth switch (Moterized)

Erection of 145 KV Tandom Isolator ( Moterized)

Erection of 245 KV Post Insulator for support.

Erection of 145 KV Post Insulator for support.

Erection of 198 KV Lighting Arrestors.

Erectoin of 120 KV Lighting Arrestors.

Erectoin of 220 / 132 KV Control & Relay Pannel of 160 MVA Transformer Pannel as per technical specification.

Erection of power receptical

Providing and fixing of 132 KV Arm assembly (Male contact 2000Amp)made of aluminium pipe length-870 mm, OD- 60mm, ID-38 mm front side mounting a copper contact OD-40mm, length-120 mm fitted in U-shape. Copper housing mounting upon Arm along with Hot dip galvanized Nut bolt & washer back side mounting a Block of 60mm dia up on arm and connect 02 No copper bond of size 50x6mm and connected with rotary head assembly including dismantling of old 1250 Amp 132 KV Arm assembly and fixing new 2000 Amp assembly, proper checking alignment and adjustment as per technical specification.

Providing and fixing of 132 KV Arm assembly (Female contact 2000Amp) made of aluminium pipe length-870 mm, OD- 60mm, ID-38 mm front side mounting a copper U-shape housing fitted with 6 No 30x5mm copper figure along with hot dip galvanized Jut bolt & washer fitted with SS spring beck side mounting a block of 60dia upon up on fitted arm with and connect 02 No coper bond of size connected with rotary head assembly including dismantling of old 1250 Amp 132arm assembly and fixing new new 2000 amp assembly , proper checking alignment and adjustment as per technical assembly, specification.

Fabrication of 3 Meter long electrodes with following MS Rod having 150 mm long conical shape and then its placing vertically inside the ground with 700mm below ground level including cutting turning and machining of electrode. (M.S Rod Provided by the depatment)

Delta earthing of 198/120 KV LAs of 220/132 KV lines and 100 MVA Transformer nuetral by 150 mm long conical shape its placing inside the ground in rectangular shape and connecting all 3/6 Nos electrodes with 75x10/50x6 mm MS flat laid on its edge and then this rectangle/tringle shape be connected to main earth mat at two place in opposite direction strictly as per drawing. (A) 198 KV LA ( Rectangle shape by 06 electrodes)

(B) 120 KV LA ( Rectangle shape by 06 electrodes)

(C) 220/132 KV 160 MVA Transformer ( Tringular shape by 03 electrodes)

Earthing of equipments by cutting straightening, bending, laying 700 mm below ground and above ground of following size of MS flat for earthing of main and auxiliary structure, equipments structure. Transformer body and its neutral point including welding with main earthmat and with object to be earthed. Excavation of trenches, its back filling and all other associated work as required to complete the work. (A) Laying of MS Flat of size 75x10 mm

(B) Laying of MS Flat of size 50x6 mm/65x8

(C) Laying of MS Flat of size 25x6 mm

Painting of MS flat of different size after cleaning of rusted surface 1st coat of Red Oxide and 2 coat of Bus Green Paint to complete the work. (A) MS Flat of size 75x10 mm

(B) MS Flat of size 50x6 mm

(C) MS Flat of size 25x6 mm

Complete cleaning of disc insulators for all phases by suitable liquid cleaner, testing of IR value by insulation tester, making series connection & ready for hoisting with all cost of men, T & P to complete the work. (A) Cleaning of disc insulator of 220 KV string

(B) Cleaning of disc insulator of 132 KV string

Erection of 4"/3" IPS aluminum pipe after laying on support post insulator and conneecting with isolator, Breaker & CT with proper terminal connector (IPS 4" aluminum pipe, connectors etc. will be provided by the depatment ) including cutting, bending, shaping and breezing work as per site requirment. (A) 220 KV Side (3X65 Mtrs.)

(B) 132 KV Side (3x25 Mtrs.)

Stringing of various Single Phase Jack Bus / Bus Bar of 220 KV, 132 KV with different type conductor and different length of span as mentioned below. The work includes cutting & bending of conductor, fixing of single /double bolted type tension fitting Hoisting of disc insulator and shifting of material from store site to erection site and all other associated work to complete the work satisfactorily as per drawing and technical specification. (A) 220 KV Main Bus -I and II Twin Tarantulla conductor

(B) 220 KV Transfer Bus TwinTarantulla.

(C) 220 KV Jack Bus for 160 MVA Transfer and 220 KV Breaker for Twin Moose conductor.

(D) 132 KV Main Bus -I, Transfer Bus and Jack bus for Twin Moose conductor

(E) Hoisting of 220KV/132 KV string under Beam to pass the jumper including hanging of disc insulator and suspension fitting complete with all work.

Single phase jumpering 220 /132 KV bay equipment ie. Main Bus I,II & transfer bus bar to isolator, breaker, CT and Bus post insulator by Twin Moose conductor between section blow gantries step by step work including jointing of Twin Moose/ Twin Tarantulla blow gentry with the help of suitable PG Clamp through suspension fitting etc. and cutting of conductor as per required to complete the work in all respect satisfactory

Laying of following size armored cable & Termination from different control room equipments to 220/132 KV CB, CT,CVT and their juntion boxes. Transformer marshaling box, isolators box and other outdoor equipments installed in 220/132 KV switch yard as per cable schedule including carriage of cable drum from store and all other associated work. (A) 2 core x 2.5 mm2

(B) 4 core x 2.5 mm2

(C) 7 core x 2.5 mm2

(D) 10 core x 2.5 mm2

(E) 14 core x 2.5 mm2

(F) Termination of control cable

Laying of power cable of following size 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. (A) 3.5 Core x 300 sq mm

(B) 3.5 Core x 50/35 sq mm

Termination of above power cable by providing suitable size aluminum dowell make lugs its crimping and connecting with equipment including cost of lugs and all other associated work to complete the job. (A) 3.5 Core x 300 sq mm

(B) 3.5 Core x 50/35 sq mm

Erection of 160 MVA 220/132 KV Transformer. (A) Shifting of Main tank of 160 MVA Transformer from unloading place to foundation distance about 20 Mtr.

(B) Additional Shifting 5 Mtr (a part of 5 mtr )

(C) Shifting and placing of accessories of 160 MVA Transformer as radiator, conservator tank and other associated material from store to near Transformer plinth.

(D) Filling the Transformer oil from oil drum to oil tanker and its centrifuging upto required BDV and creating the vacuum inside the Main tank and filling of Transformer oil in main tank.

(E) Providing of Dry air plant -40°C at the time of opening of inspection plate for internel inspection of transformer, erection of turret, bushing, pipe line etc.

(F) Complete erection of 100 MVA Transformer and accessories HV/LV/TV/N bushing, Radiators, conservator tank, a frame, Header, oil pipe line, pump cooling fan etc. Oil filling up to rquired level.

(G) Complete evacuation of MV A Transformer main tank and filling of Dry Air of dew point -40°C or better in vacuum up to pressure of 0.25Kg/Cm2 and again evacuating the Transformer tank after required time interval (approx. 12/24 Hrs.) using centrifuging machine the work shall including connecting pipe of machine as required measuring Dew Point values of Dry Air after every cycle till the required value is achieved.

(H) Centrifuging the Transformer oil in Main tank and circulate the Transformer oil through centrifuging machine and taking BDV time to time. ( Centrifuging Machine shall be provided by the contractor).

Installation of high velocity automatic water spraying system for 160 MVA T/F including laying of fire direction water pipe line valves Quartzoid, HVWS nozzles along with all material complete as per details.(A) Supply & installation testing commissioning of quick opening flood, deluge value of HD of 150 NB as per Max working pressure 10 Kg/cm2, as per specification (HD/Mather Platt/equivalent) (In nos.).

(B) Supply & installation & Commissioning of gate value (sluice Valve/Butterfly valve) as per IS specification (IS Code: 14846) of (Zoloto/Kartar/Sir make) (In nos.) 150 NB

(C) Supply & installation & testing commissioning of “Y” Type strainer (Kartar/Sir/Kalpana/Agro make) of dia Max working pressure 7 Kg/cm2 (In Nos.) 150 mm

(D) Supply & laying of different size of M.S pipe B class for fire water pipe line/support as per IS specification (IS Code-1239) Complete with elbow Tee Socket reducer etc. with anti-corrosive treatment with detail as below. (i) 150 NB

(iii) 80 NB

(E) Supply & laying of different size of GI pipe B class for fire detection water pipe line as per specification (IS Code-1239) as per drawing enclosed complete with elbow Tee Socket reducer. (i)65 NB

(iii) 40 NB

(F) Supply & Installation of Flanges as per IS-1538 of different size as per drawing work include proper butt welding with pipe & proper packing and coupling with Nut & Bolt. (i) 150 NB

(iii) 80 NB

(vii) 25 NB

(G) Supply, Installation & Commissioning of high velocity water spray nozzles flow capacity 3.5 Kg./cm2 Spray core angle 900.

(H) Supply & Installation & Commissioning of Quartzite bulb detectors (QBD) operate at 900C sensing at rated temp for actuation of the element 10-12 sec.

(I) Supply, Installation & Testing Commissioning of fixed differential switch (Danfoss/Indfoss make) type pressure switch range 1-10 Kg cm2

(J) Pressure gauge as per IS Specification IS Code-3624 Accuracy 5%

Supply Portion:- (For 220 KV) Bolted type single tension fitting for twin moose / tarantulla bundle Conductor with turn buckle 250mm Speciang for 220KV main / Jack bus Suitable for each disc string comprsing 1x16No. 120KN disc with hardware set as per technical specification .

Bolted type single tension fitting for twin moose / tarantulla bundle Conductor with out turn buckle 250mm Speciang for 220KV main / Jack bus Suitable for each disc string comprsing 1x16No. 120KN disc with hardware set as per technical specification .

Bolted type single Suspension fitting for twin moose / tarantulla bundle Conductor for 250mm Speciang for 220KV main / Jack bus Suitable for single 1x16No. 120KN disc with hardware set as per technical specification .

Spacer for twin moose bundle conductor for 250mm speacing for 220KV system as per techninal specification

Spacer for twin tarantulla bundle conductor for 250mm spacing for 220KV System as per technical specification

Pipe sleeves for 4"IPS Al, tube as per technical specification.

Through / fixed type connector for 220KV bus post insulator suitable for 4" IPS Al, tube for 220KV System as per technical specification.

Expension type connector for 4"IPS Al, tube semicircular clamp twin tarantulla conductor expension made of LM-6 Alloy with GI Nut , bolt & washar both side suirtable for 4'' IPS pipe jointing as per technical specification .

220KV connector suitable for 250 MM Spacing twin tarantulla conductor for 250 MM Spacing 220KV bus /line isoator complete with GI nut & bolt duly febricated as per technical specification .

220KV Expension type connector suitable for 4" IPS Al, tube for 220KV bus /Line isolator with GI nut & bolt duly febricated as per technical specification .

220KV connector suitable for twin tarantulla conductor for 250 MM spacing 220KV tendom isoator with GI nut & bolt duly febricated as per technical specification .

220KV through type connector suitable for 4" IPS Al, tube for 220KV tandem isolator with GI Nut & bolt duly febricated as per technical specification .

220KV connector suitable for twin tarantulla conductor for 220KV Circuit breaker with GI nut & bolt duly febricated as per technical Specification.

220KV Expension type connector suitable for 4" IPS Al, tube for 220KV circuit breaker with GI nut & bolt duly febricated as per technical specification .

220KV Expension type 4" IPS Al, tube for 220KV Current T/F with GI Nut & bolt duly febricated as per technical specification.

4 Bolted type P.G Clamp made of alluminum alloy LM-6 with spring washer along with GI ,Bolts & nuts suitable for moose to moose conductor as per technical specification. (IN Nos.)

4 Bolted type P.G Clamp made of alluminum alloy LM-6 with spring washer along with GI ,Bolts & nuts suitable for moose to Tarantulla conductor as per technical specification. (IN Nos.)

4 Bolted type P.G Clamp made of alluminum alloy LM-6 with spring washer along with GI ,Bolts & nuts suitable for Tarantulla to Tarantulla conductor as per technical specification. (IN Nos.)

(For 132 KV) Bolted type single tension fitting for twin moose / tarantulla bundle Conductor with turn buckle 250mm Speciang for 132KV main / Jack bus Suitable for each disc string comprsing 1x10No. 120KN disc with hardware set as per technical specification .

Bolted type single tension fitting for twin moose / tarantulla bundle Conductor with out turn buckle 250mm Speciang for 132KV main / Jack bus Suitable for each disc string comprsing 1x10No. 120KN disc with hardware set as per technical specification .

Bolted type single Suspension fitting for twin moose / tarantulla bundle Conductor for 250mm Speciang for 220KV main / Jack bus Suitable for single 1x16No. 120KN disc with hardware set as per technical specification .

Pipe sleeves for 3"IPS Al, tube as per technical specification.

Bimetallic 132 KV LA clamp made of aluminum alloy LM-6 for Moose conductor with HDG nut & bolts and washer as per Technical specification.

Expension type connector suitable for 132 KV Isolator clamp made of aluminum alloy LM-6 for 3" IPS Tube with HDG nut & bolts and washer as per Technical specification.

Fixed type connector suitable for 132 KV Isolator clamp made of aluminum alloy LM-6 for 3" IPS Tube with HDG nut & bolts and washer as per Technical specification.

132 KV Isolator clamp for Twin Moose conductor with nut, bolts and washer as per technical specification.

132KV Section Isolator clamp for Twin Moose conductor with nut, bolts and washer as per technical specification.

Expension type connector suitable for 132 KV Tendom Isolator clamp made of aluminum alloy LM-6 for 3" IPS Tube with HDG nut & bolts and washer as per Technical specification.

Bimetalic 132 KV Tendom Isolator clamp for Twin Moose conductor with nut, bolts and washer as per technical specification.

Bimetallic 132 KV CT clamp made of aluminum alloy LM-6 for Twin moose conductor with HDG nut & bolts and washer as per Technical specification.

Expension type connector suitable for 132 KV CT clamp made of aluminum alloy LM-6 for 3" IPS Tube with HDG nut & bolts and washer as per Technical specification.

Through / fixed type connector for 220KV bus post insulator suitable for 3" IPS Al, tube for 132KV System as per technical specification.

PT clamp suitable for moose conductor complete with hot dip galvanized nut, bolts & washer as per technical specification.

Bus Post clamp suitable for Twin moose conductor complete with hot dip galvanized nut, bolts & washer as per technical specification.

Bimetallic terminal connector for 160 MVA T/F HV side bushing rod 60 mm dia made of aluminum alloy LM-6 suitable for 250 MM spacing ACSR Twin Moose conductor of matching with bushing rod complete with hot dip galvanized nut & bolts as per technical specification.

Bimetallic terminal connector for 160 MVA T/F LV side bushing rod 60 mm dia madere of aluminum alloy LM-6 suitable for 250 MM spacing ACSR Twin Moose conductor of matching with bushing rod complete with hot dip galvanized nut & bolts as per technical specification.

132 Breaker clamp for Twin Moose conductor with nut, bolts and washer as per technical specification.

Expension type connector suitable for 132 KV Breaker clamp made of aluminum alloy LM-6 for 3" IPS Tube with HDG nut & bolts and washer as per Technical specification.

220 KV CT Junction box of size 600x450x300 mm made of 16 SWG sheet complete with 16 Amp link type TB 60 No and cable gland 06 No duly painted with one coat of red oxide & two coat of grey paint as per technical specification.

132 KV CT Junction box of size 450x450x300 mm made of 16 SWG sheet complete with 16 Amp link type TB 20 No and cable gland 06 No duly painted with one coat of red oxide & two coat of grey paint as per technical specification.

Cable Gland of Different Size. (i) 2C x 2.5 mm (16mm)

(ii) 4C x 2.5 mm (19mm)

(iii) 6C x 2.5 mm (22mm)

(iv) 10C x 2.5 mm (25mm)

Supply of copper lug of different types. (i) Ring type of size 2.5 mm

(ii) Pin type of size 2.5 mm

Meena Elect & Engg. Works

M/S JAI SHREE ENTERPRISES