2059 P.W. M&R S.R

Name of work: Replacing Old & u/s Transformer and Arm.Al Cable in HT Sub Station at Jilla Seva Sadan - 2 Rajkot

Item Quantities estimated Item of work Tendered Total amount

Item Quantities estimated Item of work Tendered Total amount

No. but may be more or Rate according to

Qty. Unit estiamted

Replacing Old & u/s by Providing, erecting, testing &

commissioning approved make oil immersed ONAN cooled,

double wound, core type indoor / outdoor copper wound 11kV/

433V step down transformer of following capacities operating

on 3 phase, 50 Hz 4 wire & neutral earthed system

continuously rated for a full temperature rise in oil not

exceeding 45 Deg.C.at maximum ambient temp. of 50 Deg. C.

complete with necessary radiator first filling of new

1 transformer oil & standard fitting as below complying with IS

1180( Part 1 ):2014 standards with energy efficiency level

Off load tap changing range steps +2.5% to -5% on H.V for

variation should be provided. The H.V. shall be connected

Delta & Secondary with star connection. The transformer

should have cable-end boxes on H.T. side suitable for up to

core 150 sq.mm. XLPE cable & on L.T. side suitable for bus

duct or cables as per requirement complete with test

certificates from manufacturers

1. Oil conservator with filling Hole & Cap - One No.

Thermometer pocket with 6" dial type thermometer switch

alarm & trip contacts- Two nos. 3. Silica-gel breather

with charge- One No.4. Plain oil level gauge - One No

Drain / Sampling / Filter valve- One No. 6. Top Filter Valve -

One No.7. Explosion vent with Diaphragm - One No.

Rating & Diagram plate - One No. 9. Additional neutral

bushing for earthing - One No. 10. Bi directional Roller -

Four Nos. 11. Earthing terminals - Two Nos. 12. Lifting lugs -

Two Nos. 13. Air release plug. - One No. 14. Double float

buchholz relay with Alarm and trip contacts. 15. Control

cable as required from Transformer to VCB Panel is to be

provided with necessary connection to VCB relays for

protection.as per IS 1180 level-1 (d) 800 KVA

Max. allowable loses as per IS 1180 level-1 at the time of

Providing and erecting ISI Marked 3 core 95 Sq.mm XLPE

insulated 11 kV armoured cable Aluminium conductor IS-

7098 to be laid on wall with clamps or in provided cable trench

/ pipe approved manner as directed.

Providing and erecting cable end termination kit, heat

shrinkable Push on type Densons/ Raychem/ Elastimold make

suitable for 11 kV XLPE cable 3core 95 & 120 Sq.mm (B)

Replacing Old & u/s by Providing and erecting FRLS-

XLPE(IS:7098)(I)-88 ISI armoured cable multistrand

4 20 Mtr Aluminium conductor for 1.1 kV. to be laid on wall with 1689.73

necessary clamps or in existing trench / pipe of following size

of cables (J) 3 1/2 core 300 Sq.mm ( 150 Sq. mm 1/2 core)

Providing and, fixing heavy duty flange type brass double

compression type cable gland with rubber ring for PVC

5 4.0 Mtr insulated armoured cable complete with out going tails, 280.78

insulating tape etc for following size of cables. (I) 3 & 1/2

core 300 Sq. mm

Item Quantities estimated Item of work Tendered Total amount

Item Quantities estimated Item of work Tendered Total amount

No. but may be more or Rate according to

Qty. Unit estiamted

Solder less crimping type Aluminium lugs conforming to IS

suitable for cable of following size evenly crimped with high

6 12 Ea. pressure tool & connected to switchgear terminals with 98.98

brass/cadmium plated nut bolts in an approved manner. (K)

Supplying & erecting earth pit of minimum bore dia.150mm

size approved make Earthing Electrode consisting Pipe-in-Pipe

Technology as per IS 3043-1987 made of corrosion free hot

dipped G.I.Pipes having Outer pipe dia of 50mm having 80-

200 Micron galvanising, Inner pipe dia of 25 mm having 200-

250 Micron galvanising, connection terminal dia of 12mm with

constant ohmic value surrounded by highly conductive

compound with high charge dissipation suitable for following

type of applications with chamber and heavy duty cover.

(A)(approved make OEM has to submit test certificate

including value of earth resistance of installation duly stamped

and signed by agency and officer Incharge has to ensure the

value of earthing resistane mentioned in test Certificate) &

having back filling compound of (B) Inner chemical (CCM

Compound)- Resistivity:- 0.2 ohm / meter testing as per IEC

62561-2017, Voltage drop:- < 1 volt at no load & dry form,

Sulphar content:- <2%(C) Back fill Compound :- Earthing

compound should be capable to retain moisture for long time

Necessary test report must be submitted by Agency.

(c) For Electrical Installation covering Transformer Neutrals,

Lightning arrester Earthing, A.C.Plant & Sensitive Computer

System(like Automation, SCADA) i.e independent Earthing in

Length of Pipe : 3.00 mtrs

Back filling Compound :2 nos Bags of 25 Kg.

Note:- The Credit of dismentalled materials for Rs.151407.00 shall be recovered from the First R.A. bill payable to the

contrator and there after the dismentalled materials shall be the property of the contractor.

I/We am/are willing to carry out the work at__________________% above/below (in

figures)_____________________________________percent Above / below (in words) the estimated rates mentioned above

amount of my\our tender works out as under :-

Estimated amount put to Tender Rs. _________

Deduct________% below Rs. _________

Net Amount Rs. _________

Estimated amount put to Tender Rs. _________

Net Amount Rs. _________

A I/We hereby declare that I/we have visited the site and fully acquainted my self / our selves with the local

situation regarding material,labour and other factors pertaining to the work before submitting this tender.

B I/We hereby declare that I/we carefully studied the conditions of contract, detailed technical specifications

and other tender documents of this work and agree to execute the same accordingly.

Item Quantities estimated Item of work Tendered Total amount

Item Quantities estimated Item of work Tendered Total amount

No. but may be more or Rate according to

Qty. Unit estiamted

C Any Excess in Tender Item/Extra Item if Needs to be Execute. Contractors has to carry out work on the

instruction of Competant Authority on Tender Submitted rate,No Excuse will be Accepted.Hence Contractor

are Requested to quote the rate considering this condition.

D Contractor are requested to quote the Tender by considering that payment will be made after availibility of

grant.Contractor has to start the work immediately after issue of Work Order and as per instruction of

E Engineer-in-Charge

"This irrespective

estimate has been preparedofonavailibility

the new SOR of grant.

wich is exclusive of GST hence GST additional will be

paid to the agency as per existing guidelines."

(Signature of the Contractor)

Note 1 Please strike out whichever is not applicable.

2 In the case of tendered amount being quoted incorrectly the quoted pered percentage Below/Above will be