Spec.no.51-II/22-23,Erection, Maintenance and Dismantling of electrical networks (OH Line and Cable) including Sub-stations maintenance in Tharamani Sub division of Adyar division for a period ending upto 31.03.2023.

Amount

Excavation of Pole pit/Stay Pit

Excavation of Pole pit of size 2'x2'x1/6 of the height of the pole upto 8 mtr pole by using JCB or Manual

Excavation of Pole pit of size 2'x2'x1/6' of the height of the pole for 9 mtr/Square pole by using JCB or Manual

Excavation of RSJ /Rail/tubular pole pit above 9.0 M by using JCB or manual

Excavation of pit in Hard rock place which requires blasting

Excavation of pit in Hard rock place which does not requires blasting (Where Houses are located)

Excavation of Stay pit 2'x2'x5' depth by using JCB or manual

Erection of poles /Stay

Erection of RCC poles/PSC poles/Metal poles up to 8.00 M (27' ) by using JCB or manual

Erection of RCC poles/PSC poles/Metal poles 9.0 M by using JCB or maual

Erection of RSJ , Rail and fabricated poles above 9.0 M by using JCB or maual

Erection of stay set complete

FIXING OF Line Materails

Fixing of HT "V" cross arms(all types) / channel cross arms/guarding Cross arms

Fixing of LT 3 phase cross arms

Fixing of LT Single phase cross arms

Fixing of HT/LT TI Fittings

Fixing of HT pin Insulators 11 KV/ 22 KV/ 33 KV

Fixing of HT 11 KV strain disc.

Fixing of HT 22 KV/33 KV strain disc.

Fixing of LT pin Insulator

Fixing of LT shackle

Fixing of Aluminium Knob

Earthing of pole with pin including looping binding and burying

Earthing of additional Cross arm

Fixing of top channel 15' centre

Fixing of belting angle

Fixing of cross bracing(4 nos angles) 10' Centre

Fixing of cross bracing(4 nos angles) 15' Centre

Fixing of danger board

Erection of Transformer centre set arrangments

Fixing of Distribution Transformer Name Board (Name of the 22/11KV #, Name of the SS and Capacity) including Supply of board (1' x 1.5' x 3 mm thickness) including the cost of paint and labour charges

Fixing of LT Cable arrangements while erecting single pole DT

Fixing of Earth coller for earth pits

Erection of Aluminium bus bar pipe complete for HT bus bar arrangements for DP structure

For Triple pole and four pole structure

Excavation of stay pit by JCB or manual

Erection of stay set complete

LT BUS arrangement

Feeder arrangements with open type fuse units

LT -LAS fixing

Paving and Stringing of Conductor

Paving of Conductor, Stringing, binding, jumpering etc., complete with ACSR for lines with DOG conductor

Paving of Conductor, Stringing, binding, jumpering etc., complete with ACSR for lines with 7/4.09 mm

Paving of Conductor, Stringing, binding, jumpering etc., complete with ACSR for lines with 7/3.35 mm ACSR or 7/3.15 mm AAAC

Paving of Conductor, Stringing, binding, jumpering etc., complete with ACSR for lines with 7/2.59 mm or 7/ 2.50 mm

Painting of Poles and Materials

Numbering of pole by using Enamel paint including cost of paint and painting charges ( 150 diameter with 2.5" height letters or 100x150mm with 2.5"letters)

Painting of Cement Poles by using Distemper paint (Single Coat)

Painting of Metal Poles by using Aluminium paint (Single Coat)

Painting of top channel

Painting of AB switch

Painting cross Bracing (4 Nos. Angles) both 10' & 15' centre

Painting of Transformer (only one coat) upto 100 KVA

Painting of Transformer (only one coat) above 100 KVA

Painting of HG fuse.

Painting of HT metering set and Box

Painting of poles and all other metal parts while erecting new double pole

Painting of poles and all other metal parts while erecting D.P Structure

Painting of pole and all other metal parts while erecting new single pole distribution transformer Structure

Concreting of poles:

Structure Concreting , Concreting of poles with size (2'x2'x5') including cost of Cemnet ,jelly and Sand with a mixture of 1:3:6 and plastering of concrete with ratio 1:2

Sleeve concreting with size (2'x2'x3') including cost of excavation Cement ,jelly and Sand with a mixture of 1:3:6 and plastering of concrete with ratio 1:2 including materials

Stay concreting of Stay with Size 1.5' X 1.5' X 3.0' including cost of 40mm Cement,Jelly and sand (with supply) with mixture 1:3:6 along sleeve concreting and plastering of concrete portion above the ground level with ratio 1:2.

Erection of Structure

Erection of Double Pole Transformer Structure Complete

Excavation of structure pole pit 2' x 2' x 6' by using JCB or manual

Erection of poles by using JCB or manual

Erection of Top channel

Erection of Bed channel

Erection of Cross with stud for bed channel

Belting Angle

Erection of AB switch

Erection of H.G.Fuse

Structure earthing complete with 3 pits and earth loops

HT -LAS fixing

HT jumpering complete

Excavation of stay pit by JCB or manual

Erection of stay set complete

Feeder arrangements with open type fuse units

LT LAS fixing

Erection of Single pole Transformer Structure Complete

Excavation of structure pole pit 2' x 2' x 6' by using JCB or manual

Erection of poles by using JCB or manual

Erection of Tapping channel

Erection of Transformer centre set arrangements

Erection of AB switch

Erection of H.G.Fuse

Structure earthing complete with 3 pits and earth loops

HT -LAS fixing

HT jumpering complete

Excavation of say pit by JCB or Manual

Erection of stay set complete

Feeder arrangements with open type fuse units for 2 feeders

LT LAS fixing

Guarding arrangements

LT split neutral guarding

Flat guarding including fixing of 2 Nos. cross arms HTLT

D.O.T. Crossing

Railway Crossing ( cradle guarding).

. Loading , Unloading and Transporting of Materials

Transport of poles/Materials/ conductors /DT/Metering Set and other materials( excluding loading and unloading charges.)

a). Below 8 Kms.

b). Above 8 Kms. For additional Km.

Loading of poles up to 27' RCC/PSC/Metal poles

Loading of poles 30' RCC/PSC poles and RSJ Pole of all sizes

Unloading of poles

Loading of cement bag of 50Kg.

Unloading of cement bag of 50Kg.

Loading of Transformer oil drum with oil 200 Lit. capacity

Unloading of Transformer oil drum with oil 200 Lit. capacity

Loading of materials

Un-Loading of Materials

Loading and Stacking of Materials

Transporting of poles from road side to pole pit Location including loading and unloading of poles by using JCB or Manual Up to 200 m

Transporting of poles from road side to pole pit including loading and unloading of poles by using JCB or Manual above 200 m

Erection of Transformer

Loading or unloading of Transformer upto 200 KVA and Metering set

Loading or unloading of Transformer above 200 KVA

Erection of Transformer upto 200 KVA including connections

Erection of New Transformer above 200 KVA including connections

Loading/Unloading/Erection of HT Metering set including connections

Resagging of Conductors

Re-sagging of HT line with ACSR 7/4.72 mm Conductor

Re-sagging of HT / LT line with ACSR 7/4.09mm Conductor

Re-sagging of HT / LT line with ACSR 7/3.35mm or AAAC 7/3.15 mm conductor

Re-sagging of HT / LT with ACSR 7/2.59mm or AAAC 7/2.50 mm conductor

Other Works

Erection of street light including fixure fitting

Erection of street light service

Fixing of new SV/MV/LED lamp fittings

Assisting for survey of HT/LT

Hut service fixing

Agricultural service fixing / service

Breaking and Releasing of grills from RCCPSC poles

Releasing of single phase service wire and re-fixing.

Releasing of 3 phase service wire and (upto 50 HP) re-fixing.

Releasing of 3 phase service wire and (above 50 HP) re-fixing.

Labour charges for alteration of Back clamps to suit for the works

Labour charges for alteration of Stay clamps to suit for the works

Fixing of Double Channel X arm/ Double V' cross arm.

Erection of new earth pipe by replacing the corroded earth pipe including burying, looping and binding

Providing LT bus bar arrangement in distn. Trs. Structure location

Fixing of meter on LV side of DT

Earthing of new double pole distribution transformer structure complete

Erection of 3 nos new 10' Earth pipe replacing the corroded earth pipe and renewal of earthing including burying looping and binding.

Earthing of D.P.complete

Earthing of new single pole distribution transformer structure complete

Erection of concrete earth tub to Distribution Transformer earth pipe

Dismantling of detoriated cables/Replacement of various size(120,240 Sq.mm) from Distribution Transformer LT bushing to LT open type clamp and provision of suitable lugs at both the ends.

Dismantling and Erection of LT open type fuse unit Aluminium clamps

Dismantling of Distn. Transformer from structure Transporting to special Maintenance assisting the special maintenance crew in overhauling and reerection at the structure.

a)up to 8Kms

b)Above 8Kms per km

Releasing of ACSR/AAAC conductors from conductor drum and coiling ACSR 7/3.35, 7/2.59, AAAC 7/2.50, 7/3.15 MM (Per/Km.)

Tiding of service connection with erection of clamp jumper in Low tension single phase SC/line,Aerial Board, Fuse unit and looping.

Tiding of service connection with erection of clamp jumper in Low tension three phase line, Aerial Board, Fuse unit and looping.

Renewal of jumper from 22/11 KV line to AB switch to HG Fuse, HG Fuse to Distn. Transformer with PG clamps.

Cutting of coconut leaves /tree branches

Drilling of hole in channel only 3/4" & 1" per hole

Cutting of flat

Cutting of channel

Cutting of Angle

Cutting of pipe

RSJ pole cutting

RSJ pole welding

Providing of line spacers for single phase line

Providing of line spacers for three phase line

Hiring Charges for JCB

Clearing of Jungle

Clearing of scrup in Yard (DT/SS)

Set right the leaning of pole in HT/LT in Pin point

Set right the leaning of pole in HT/LT in Cut point

Erection of LT Shunt Capacitor

Ground patrolling of HT lines during Breakdown

Rectification of snapped HT line during Break down

Rectification of snapped LT line during Break down

Erection of Single phase meters

Erection of Three phase meters

Maintenance of Distribution Transformer

Monthly Maintenance

Maintaining Transformer Yard and earth pits neat and tidy

Cleaning the entire transformer including the bushings

Checking for oil level and reportingif the level is below the mark

Checking the earth connections and watering the earth pits

Checking the oil leaks and reporting if any noticed

Reconditioning the breather (by reactivating Silicagel or replacing it if necessary)

Checking the LT fuses and renewing them if necessary

Quarterly Maintenance

Renewing the HG fuses

Measuring the insulation resistance and Load currents

Annual Maintenance

Lubricating the AB switches and checking their operation

Checking the lines and earth connections of AB switch

Checking the lines and earth connections of HT and LT lightning arresters

Checking the HV and LV bushing connections

Substation Maintenance

Complete maintenance of Power Transformer of all capacities

Complete maintenance of Breaker,CT/PT for 110 KV and above

Complete maintenance of Breaker,CT/PT for capacity less than 110 KV

Complete maintenance of Centre Rotating Switch 110 KV and above

Complete maintenance of Centre Rotating Switch below 110 KV

Replacement of Clamps of all sizes

Complete maintenance of LAS 110 KV and above

Complete maintenance of LAS below 110 KV

Replacement of Jumpers less than 1 metre

Replacement of Jumpers more than 1 metre

Maintenance of earth pits and watering

Cleaning of control and relay panels (Front,Back and inside)

Mainenance of Capacitor Bank cell

Replacement of capacitor bank cell

Replacement of PT Insulator

Replacement of Female/Male contact for 110 KV

Replacement of Female/Male contact for less than 110 KV

Maintenance of Battery

LAYING OF HT CABLE

Excavtion of cable trench 0.6 meters width and 1.2 meters depth including cost

Normal Road (earth)

Tar Road

Concrete Road

Transporting of 11 KV HT cable from departmental stores to work spot by

3x300 sq mm XLPE (1 drum: 200 m)

3x120 sq mm XLPE (1 drum: 200 m)

LAYING OF HT CABLE

Laying of 300 sq mm XLPE cable

Laying of 120 sq mm XLPE cable

Covering HT cable by cement "V" trough after covering the cable with good loose earth including loading, unloading and transport from stores to site and letter painting of feeding details & Cable size on the trough

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

Transport back any balance cable, empty drums and other materials if any by engaging private vehicle including recoiling, coiling and loading and unloading at both sides from workspot to departmental stores (minimum 2 empty drums)

LAYING OF LT CABLE

Transport of LT cable by engaging private vehicle including recoiling coiling and

240 sq.mm ( 1 drum - 200 meters)

120 sq. mm ( 1 drum - 500 meters)

25 sq. mm ( 1 drum - 500 meters)

16 sq. mm ( 1 drum - 500 meters)

Excavation of cable trench 45 cm width and 75 cm depth including cost of

Normal Road (earth)

Tar Road

Concrete Road

Laying of LT Cables

Laying of 240 sq.mm cable

Laying of 120 sq.mm cable

Laying of 25 sq.mm cable

Laying of 16 sq.mm cable

TRENCHLESS CABLE LAYING(NEW/RECTIFICATION)

Laying of cable using Trenchless technique with scanner without pipes

upto 50 mt LT/11 KV/33 KV single run

above 50 mt LT/11 KV/33 KV single run

ERECTION OF PILLAR BOX

Erection of pillar box including excavation of foundation pits as per standard

Mini pillar boxes for 3 feet

4/6/8 way pillar box 3 feet

4/6/8 way pillar box 4 feet

Cleaning, painting with Aluminium paint 2 coats & numbering pillar box with

8 way pillar box

6 way pillar box

4 way pillar box

Mini way pillar box

DISMANTLING OF PILLAR BOX

Dismantling of old pillar box including associated accessories, loading on the

4/6/8 way pillar box

Mini pillar box

Maintenance of pillars works such as replacement of damaged insulators worn out stembolts, lugs, termination of cables and dressing

8 way pillar box

6 way pillar box

4 way pillar box

Mini pillar box

Earthing of pillar boxes

8/6/4 and Mini pillar boxes