Extension of 33 KV Line from 33 KV Sub-Station Chawmanu along with installation of necessary equipments and installation of 16 Nos. 33/0.4 KV, 100 KVA Distribution Transformer at 16 Nos. BOPs under ESD - Chawmanu

A. Supply: Construction of 33 KV Line

Laying, hoisting & stringing of ACSR (6/1/2.59 mm dia) weasel conductor including binding, jumpering, etc. as reqduired & as per direction of the Engineer-in-Charge.

11 Mtr. Long Full Galvanised Steel Tubular Pole

GI Stay Set Complete HT-20 sqmm

Stay Insulator 33 KV

GI Stay Wire 7/4 mm

PG Clamp

33 KV Polymer Composite Pin Isulator

33 KV Polymer Composite 70 KN Disk Isulator

33 KV Disc Fittings (7/3.8)

MS Channel (100x50x50x6 mm)

MS Channel (75x40x40x6 mm)

MS Angle (65x65x6 mm)

3/0.433 KVA Transformer Base

33 KV GOAB Switch 800 Amps

33 KV DOF 400 Amps Assembly

Nuts &Bolts (assorted size)

Danger plate

GI Flat 65x6 mm

GI Barbed wire

33KV Polimatric G.O Post Insulator

33KV Polimatric G.O Male, Female & Lace parts

33 KV G.O SWITCH 3PH/ISOLATOR 800A outdour, manually operated horizontal rotating type double break triple pole Gang Operated Isolator complite with post insulator, arching horns, mechanical interlocking arrangement etc. without earth switch

B. Supply: Construction of 33/0.43 KVA Distribution Sub-Station

Laying, hoisting & stringing of ACSR (6/1/2.59 mm dia) weasel conductor including binding, jumpering, etc. as reqduired & as per direction of the Engineer-in-Charge.

GI Stay Set Complete HT-20 sqmm

Stay Insulator 33 KV

GI Stay Wire 7/4 mm

33 KV Polymer Composite Pin Isulator

34 KV Polymer Composite 70 KN Disk Isulator

33 KV Disc Fittings (7/3.8)

MS Channel (100x50x50x6 mm)

MS Channel (75x40x40x6 mm)

MS Angle (65x65x6 mm)

3/0.433 KVA Transformer Base

33 KV GOAB Switch 800 Amps

33 KV DOF 400 Amps Assembly

100 KVA 33/.433 KV Distribution transformer

33 KV Polimeric LA (30 KV, 10 KA)

Nuts &Bolts (assorted size)

Danger plate

GI Flat 65x6 mm

33KV Polimatric G.O Post Insulator

33KV Polimatric G.O Male, Female & Lace parts

Bimetalic Lugs (Assorted Size)

Re-wirable Porcelin Cut Out 300 Amp

70 sq mm PVC Cable

10 sq mm PVC Cable

Wooden Plank with necessary clamp & Nuts & bolts

C. Supply of Plant Equiptment Materials and Structure for 33 KV Sub-Station Bay

30 KV, single phase, 50 Hz station type 10 KA heavy duty type LA solidly grounded neutral system for 33 KV system with surge counter and terminal connectors suitable to ACSR Panther conductor.

33 KV,1250 Amp horizontally centre rotating type double break isolator with post insulator mechanical inter locking arrangement.

a) With earth switch

b) Without earth switch

33 KV, 1250 A, 750 MVA breaking capacity, Outdoor type SF6 Circuit Breaker complete with motor operated spring closing (Local / Remote) arrangement with all accessories and supporting structure complete operative on 110V DC.

33 KV, Single Phase, Outdoor type CT with suitable burden & class of accuracy complete with associated terminal box connecting link etc. a) 4 Core CT of ratio 400-200/1-1-1-0.577A for Transformer/Feeder

33 KV single phase outdoor type PT 33 KV / √3 / 110V / √3 volt with suitable burden and class of accuracy.

Sub- Station Bus Bar materials for 33 KV i/nc. equipment bus materials, complete with Al. Tube of OD 60 mm (for 132 KV equipment bus) and Al. Tube of OD 40 mm (for 33 KV equipment bus), in/c. Disc & Post Insulators, Earth bonds, nuts & bolts, conductors, connectors, Clamps etc. complete with all accesserores and fittings to complete the bus-bar arrengements as per direction of Engineer-In-Charge. a) Single ACSR Panther Conductor for main and Single ACSR Panther Conductor transfer Bus-bar b) ACSR Panther Conductor c) 7/3.15 mm GI Sheilding wire d) Al. Tube of OD 40 mm. e) 33 KV Post Insulator f) 11KV 120KN Disc Insulator g) Clamps and connectors, fittings etc. as per requirement to complete 33 KV bus-bar and bay.

a) 1.1 KV graded PVC Insulated (sheathed) 2.5 sq.mm Copper (Stranded) armoured control cable.

i) 12 core 2.5 Sq.mm Control cable

ii) 7 core 2.5 Sq.mm Control cable

iii) 5 core 2.5 Sq.mm Control cable

iv) 2 core 2.5 Sq.mm Control cable

b) 4 core 6 sq.mm (stranded copper) 1100 V grade armoured power cable as per requirement.

Galvanised Steel Structure for gantry & equipments with Hot Dip Nut Bolts and washer etc. for fastener and foundation nut bolts.

Sub Station Earthing materials complete as per requirement of installed Transformer & electrical equipments fault calculation design.

a) 40 mm Dia, 6 mtr long MS Rod Earthing Electrode

b) 30 mm dia MS Rod for isolator Aux Mat with Dimension of 1500 x 1500 mm having 300 mm spacing

c) 50 x 8 mm GS Flat for equipement and structure earthing for main earth mat and risers

Flexible bimatelic clamp for isolator, CT, breaker & LA etc

"T"-clamp suitable for AASC "DOG" equivalent conductor in one end and 40mm dia Al. tube on other end.

GI Flat 65x6 mm

D. Civil Works for Construction of SWITCHYARD (33KV S/S)

Earth work in excavation by mechanical means (Hydraulicexcavator / manual means) in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan) including dressing of sides and ramming of bottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m. All kinds of soil ( excluding rock)

RCC work 1:2:4 (1 Cement :2 river sand: jhama brick aggrigate of 20 mmnominal size)excluding the cost of centring,shuttering & rainforcement.

Cold twisted steel rainforcement for RCC works i/c bending binding and placing in position complete

First class brick work in foundations & plinth in cement morter 1:6(1 cement:6 river sand.) a.) Cable trenches

Providing & laying cement concrete 1:3:6 ( 1 cement : 3 river sand : 6 jhama brick aggregate 20 mm. nominal size ) excluding the cost of centring & shuttering. a) Foundations and plinth

12 mm cement plaster in single layer including cost of materials required and finishing even and smooth and curing complete. i) In cement mortar 1: 6 (1 cement : 6 fine sand)

Providing centring & shuttering i/c shruttering, propping etc and removal of forms for:- a.) Foundation footing , bases of colum etc of mass concrete.

Neat cement punning

Earth work in excavation over areas exceeding 30cm in depth, 1.5 mtr in width as well as 10 Sqm. on plan in/c disposal of excavated earth lead upto 50 mtr . and lift upto 1.5 mtr .disposed earth to be levelled and neatly ressed. a.) All kinds soil excluding rock.

Supplying and fixing of outdoor LED Luminious complete with 2.5mtr long 40mm dia GI pipe, power coated die cast housing and heat resistant tempered glass / diffuser including necessary connection etc as required. 72 Watt LED street light i/c. SPD

Galvanised LED Street Light Bracket Including Galvanised Bkt Clamp With N& B and other required for installation of the light on PCC Pole.

2.5 sq mm cupper wire for connection of street light from existing LT line as per provision of I.E. Rule.

E. Civil Works for 33 KV Lline and 3

Transformer base (RCC) i/c hard drawn fencing with necessary accessories

Steel pole grouting(CC) 1:2:4 ( cement 1 , sand 2 , 40MM agreegate stone concrete 4 )Erection of 12 mtr long steel tubular pole in normal soil with cement concrete foundation of ratio 1:2:4 (cement: Sand:Jhama brick aggregate) Volume 0.333 cum i/c supply of gradients & centering, shuttering

Erection of stay set in normal soil with cement concrete foundation of ratio 1:2:4 (cement: Sand:Jhama brick aggregate) Volume 0.119 cum i/c supply of gradients centering, shuttering

Detailed Route survey for alignment with coverage of exiting distribution sub-station, submission of route alignment, profile and final survey indicating land mark, road crossing, river, water body, SCADA OFC cable, and P&T line etc.

F. Erection of the Following Items for 33 KV Line

9 Mtr. Long Full Galvanised Steel Tubular Pole

Erection of 11 mtrs.long galvonized tubuler Pole direct in earth including excavation, refilling and ramming etc. as required complete (1 /6 th of the length of the pole to be embedded in earth).

Erection of 3.2 mtr long made of 100x50x50x6 mm. galvonized Channel for D.P. structure as per direction of the Engineer-in-Charge.

Erection of 0.31 mtr long made of 100x50x50x6 mm. galvonized Channel for S.P. structure as per direction of the Engineer-in-Charge.

Erection of 'V' cross arm 2.5 mtr long made of 100x50x50x6 mm. galvonized Channel for SP structure and distence of two pin hole1525mm as per direction of the Engineer-in-Charge.

Erection of 3.5 mtr. long made of 75 x 40 x 40x 6 mm.galvonized Channel for double pole guard bracket as per direction of the Engineer-in-Charge.

Erection of 2.5 mtr. long made of 75 x 40 x 40x 6 mm.galvonized Channel for Single pole guard bracket as per direction of the Engineer-in-Charge.

Erection of 3.5 mtr long made of 75x40x40x6 mm galvonized Channel for G.O, D.O., & GO pipe suport as per direction of the Engineer-in-Charge.

Erection of 3.2 mtr. long made of 65x65x6 mm MS Angle for double pole cross arm as per direction of the Engineer-in-Charge.

Erection of 2.5 mtr. long made of 65x65x6 mm MS Angle for double pole cross arm as per direction of the Engineer-in-Charge.

33 KV GOAB SWITCH 800A

33 KV DOF 400 Amps Assembly

Danger plate

Barbed wire

33 KV G.O SWITCH 3PH/ISOLATOR 800A outdour, manually operated horizontal rotating type double break triple pole Gang operated isolator complite with post insulator, arching horns, mechanical interlocking arrangement etc. without earth switch

33 KV Polymer Composite Pin Isulator

33 KV Polymer Composite 70 KN Disk Isulator with 33 KV Disc Fittings (7/3.8)

ACSR (6/1/2.59 mm dia) weasel conductor

Laying, hoisting & stringing of 8/10 SWG GI wire including binding, jumpering, earthing etc. as reqduired & as per direction of the Engineer-in-Charge.

Eection of 33 KV protective guarding by GI 10 SWG as per technical specification. Acoss road river Telicom line etc. In horizontal formation complite.

Erection of GI Stay Set complete direct in earth with 16 mm. dia. 1.8 mtr. long painted stay rod, anchor plate of size 300 X 300 X 10 mm. thick, turn buckle of length 356 mm. with 300 mm. long threaded adjustable 16 mm. dia. MS rod , thimble, guy insulator as per IS specification, hot dip (heavy duty) galvanized stay stranded wire of size 7/2.5 mm. fastened with stay clamps as required. ( including supply of MS clamp & Nuts & Bolts as reqd) and Grouting of stay set with CC of ratio 1 :2:4 (1 cement: 2 river sand: 4 jhama brick aggregate of 20 mm. nominal size) ilc supply of cement, sand and brick aggregate complete with excavation, refilling of earth, ramming along with centering and shuttering as required ( @ 0.119 Cum per stay set as per TSECL Specification)

Cutting, clearing & disposal of jungle/tree of any girth from 3(three) meter either side of HT/LT line of providing required vertical and horizontal clearance as per provision of I.E. Rule.

Hiring charge of vehicle with driver and will also supply by the agency as reqduired & as per direction of the Engineer-in-Charge.

G. Erection of the Following Items for 33/0.43 KV Sub-Station

9 Mtr. Long Full Galvanised Steel Tubular Pole

Erection of GI Stay Set complete direct in earth with 16 mm. dia. 1.8 mtr. long painted stay rod, anchor plate of size 300 X 300 X 10 mm. thick, turn buckle of length 356 mm. with 300 mm. long threaded adjustable 16 mm. dia. MS rod , thimble, guy insulator as per IS specification, hot dip (heavy duty) galvanized stay stranded wire of size 7/2.5 mm. fastened with stay clamps as required. ( including supply of MS clamp & Nuts & Bolts as reqd) and Grouting of stay set with CC of ratio 1 :2:4 (1 cement: 2 river sand: 4 jhama brick aggregate of 20 mm. nominal size) ilc supply of cement, sand and brick aggregate complete with excavation, refilling of earth, ramming along with centering and shuttering as required ( @ 0.119 Cum per stay set as per TSECL Specification)

2.8 mtr. long 100 X 50 X 50 X 6 mm. MS channel sub-station Top Bkt. as required as per direction of the Engineer-in-Charge.

2.8 mtr. long 100 X 50 X 50 X 6 mm. MS channel sub-station bracket including drilling of holes as required for Transformer support as required as per direction of the Engineer-in-Charge.

0.8 mtr. long 100 X 50 X 50 X 6 mm. MS channel sub-station bracket including drilling of holes as required for Transformer support as required as per direction of the Engineer-in-Charge.

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 as required as per direction of the Engineer-in-Charge.

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 as required as per direction of the Engineer-in-Charge.

33 KV Polymer Composite Pin Isulator

33 KV Polymer Composite 70 KN Disk Isulator with 33 KV Disc Fittings (7/3.8)

ACSR (6/1/2.59 mm dia) weasel conductor

Laying, hoisting & stringing of 8/10 SWG GI wire including binding, jumpering, earthing etc. as reqduired & as per direction of the Engineer-in-Charge.

33 KV GOAB SWITCH 800A

33 KV DOF 400 Amps Assembly

33 KV Plimeric LA (30 KV, 10 KA) as per the direction of the Engineer-in- Charge.

Supply and erection of earthing set as per ISS : 3043 of 1966 and with latest amendment if any, 2.5 mtr long G.I. pipe (ISI marked) of 40 mm diameter with suitable holes on pipe circumference including a pair of clamps (made of 50 X 6 mm M.S. flat), galvanized nuts & bolts along with alternate layers of salt & charcoal including supply of 4.0 mtr long, 12mm dia PVC pipe for each earthing set etc. as required and as per direction of the Engineer-in-Charge.

Commissioning of 100 KVA 33/0.433 KV Distribution Transformer as reqd. as per direction of the Engineer-in- Charge and approved drawing.

Providing three phase service connection with laying PVC cable from nearby electrical pole to premises as required as per direction of the Engineer-in-Charge.

Danger plate

Wooden Plank with necessary clamp & Nuts & bolts

H. Erection of the Following items at 33 KV Sub-Station

30 KV, single phase, 50 Hz station type 10 KA heavy duty type LA solidly grounded neutral system for 33 KV system with surge counter and terminal connectors suitable to ACSR Panther conductor.

33 KV,1250 Amp horizontally centre rotating type double break isolator with post insulator mechanical inter locking arrangement.

a) With earth switch

b) Without earth switch

33 KV, 1250 A, 750 MVA breaking capacity, Outdoor type SF6 Circuit Breaker complete with motor operated spring closing (Local / Remote) arrangement with all accessories and supporting structure complete operative on 110V DC.

33 KV, Single Phase, Outdoor type CT with suitable burden & class of accuracy complete with associated terminal box connecting link etc. a) 4 Core CT of ratio 400-200/1-1-1-0.577A for Transformer/Feeder

33 KV single phase outdoor type PT 33 KV / √3 / 110V / √3 volt with suitable burden and class of accuracy.

Sub- Station Bus Bar materials for 33 KV i/nc. equipment bus materials, complete with Al. Tube of OD 60 mm (for 132 KV equipment bus) and Al. Tube of OD 40 mm (for 33 KV equipment bus), in/c. Disc & Post Insulators, Earth bonds, nuts & bolts, conductors, connectors, Clamps etc. complete with all accesserores and fittings to complete the bus-bar arrengements as per direction of Engineer-In-Charge. a) Single ACSR Panther Conductor for main and Single ACSR Panther Conductor transfer Bus-bar b) ACSR Panther Conductor c) 7/3.15 mm GI Sheilding wire d) Al. Tube of OD 40 mm. e) 33 KV Post Insulator f) 11KV 120KN Disc Insulator g) Clamps and connectors, fittings etc. as per requirement to complete 33 KV bus-bar and bay.

a) 1.1 KV graded PVC Insulated (sheathed) 2.5 sq.mm Copper (Stranded) armoured control cable.

i) 12 core 2.5 Sq.mm Control cable

ii) 7 core 2.5 Sq.mm Control cable

iii) 5 core 2.5 Sq.mm Control cable

iv) 2 core 2.5 Sq.mm Control cable

b) 4 core 6 sq.mm (stranded copper) 1100 V grade armoured power cable as per requirement.

Galvanised Steel Structure for gantry & equipments with Hot Dip Nut Bolts and washer etc. for fastener and foundation nut bolts.

Sub Station Earthing materials complete as per requirement of installed Transformer & electrical equipments fault calculation design.

a) 40 mm Dia, 6 mtr long MS Rod Earthing Electrode

b) 30 mm dia MS Rod for isolator Aux Mat with Dimension of 1500 x 1500 mm having 300 mm spacing

c) 50 x 8 mm GS Flat for equipement and structure earthing for main earth mat and risers

DNIeT NO: DGM/ED-MNU/2025-26/09, Date: 19.11.2025.

I. Carrying of the Following items.