Bid Documents

Bid Documents
ASSAM POWER DISTRIBUTION COMPANY LTD.
LOWER ASSAM REGION
BID DOCUMENT
FOR
CONSTRUCTION OF 33KV LINE FROM 132/33KV SISHUGRAM SUB STATION TO 33/0.433KV,
2X2000KVA SUB STATION OF NATIONAL LAW UNIVERSITY & JUDICIAL ACADEMY, AMINGAON
UNDER AMINGAON ELECTRICAL SUB DIVISION OF GUWAHATI ELECTRICAL CIRCLE-II UNDER
DEPOSIT SCHEME (LINE LENGTH=2.30KM (2.000KM, OVERHEAD+0.300KM U.G CABLE))
ON
“TURNKEY” MODE
SCHEME: “DEPOSIT SCHEME”
NIT No: CGM (D)/APDCL/LAR/LAW UNIV./15-16 / D-14
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 1 of 123
SECTION :1
NOTICE INVITING TENDER
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 2 of 123
ASSAM POWER DISTRIBUTION CO. LTD
Lower Assam Region
SHORT TENDER NOTICE
NIT No: CGM (D)/APDCL/LAR/LAW UNIV./15-16 / D-14
Sealed Tenders are invited from experienced & financially sound Electrical Contractor(s)
(individual or joint venture)/Firm(s) having valid electrical contractor license up to 33 KV issued
by the competent authority of the Govt. of Assam & having experience of erection of 33 KV Lines
for construction of 33KV line from 132/33KV Sishugram Sub Station to 33/0.433KV,
2x2000KVA Sub Station of National Law University & Judicial Academy, Amingaon under
Amingaon Electrical Sub Division of Guwahati Electrical Circle-II under Deposit Scheme (line
length=2.30km (2.000km, overhead+0.300km U.G Cable)) on “Turnkey” mode.
Tender papers can be purchased in all working days up to 4 PM w.e.f. 05.05.2015 to
12.05.2015 from the office of the Chief General Manager (D), APDCL, LAR, BijuleeBhawan,
5thFloor,Paltanbazar, Guwahati- 781001 on payment of Rs. 5000.00 (Five thousand ) onlyin
the form A/C payee DD/Banker’s cheque (which is non refundable) duly pledged in favour of
“CGM (F&A), APDCL” along with an application in plain paper.
Tender
papers
can
also
be
downloaded
from
our
official
website
www.apdcl.gov.inw.e.f. 05.05.2015 up to 12.05.2015. However, bidders must depositthe
requisite fees by way of the draft/banker’s cheque purchased on or before 12.05.2015, the
date of closing of the sale of tender paper.
Details may be seen in the websitefrom 05.05.2015.
Chief General Manager (D),
APDCL (LAR),
BijuleeBhawan ,5th floor, Guwahati- 781001.
Memo No. CGM (D)/ APDCL/LAR/LAW UNIV./15-16/ D-14/5 Date: 02.05.2015
Copy to: 1.
2.
3.
4.
5.
6.
The Managing Director, APDCL, for favour of kind information.
The General Manager, Guwahati Zone, APDCL (LAR), Guwahati-22 for information.
The CEO, Guwahati Elect. Circle-II, APDCL (LAR), for information & necessary action.
The AGM, Guwahati Elect. Division (West), Amingaon, Guwahati, for information.
The SDE, Amingaon Elect. Sub Division, Amingaon, Guwahati, for information.
The PRO, ASEB, BijiuleeBhawan, Paltan Bazar, Guwahati for publication of the above
tenderin one issue of “The Assam Tribune” and one in vernacular daily.
7. The OSD to MD, APDCL, BijiuleeBhawan, Paltanbazar, Guwahati-1 for publication in
the official website.
8. The Office file.
Chief General Manager (D),
APDCL (LAR)
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 3 of 123
ASSAM POWER DISTRIBUTION COMPANY LIMITED.
(LOWER ASSAM REGION)
NIT No: CGM (D)/APDCL/LAR/LAW UNIV./15-16/D-14 Dated:02/05/2015
Sealed tenders are invited from the experienced Contractors/Firms having valid electrical contractor
license up to 33KV, issued by the competent authority of Govt. of Assam, subject to the electrical supervisors
certificate of competency and workman permit & havingsufficient experience of construction 20 (Twenty) Km. of 33
KV lines in last 5 years for the Package in the State of Assamfor the following works under Deposit Scheme on
―Turnkey‖ mode.
Name of the Work :
CONSTRUCTION OF 33KV LINE FROM 132/33KV SISHUGRAM SUB STATION TO 33/0.433KV, 2X2000KVA SUB
STATION OF NATIONAL LAW UNIVERSITY & JUDICIAL ACADEMY, AMINGAON UNDER AMINGAON
ELECTRICAL
SUB
DIVISION
OF
GUWAHATI
ELECTRICAL
CIRCLE-II
ON
DEPOSIT
SCHEME
(LINE
LENGTH=2.30KM (2.000KM, OVERHEAD+0.300KM U.G CABLE UNDER „‟TURNKEY” MODE.
Scope of Work:
The work is to be carried out forconstruction of 33KV line from 132/33KV Sishugram SubStation
to 33/0.433KV, 2x2000KVASubStation of National Law University & Judicial Academy, Amingaon under
Amingaon Electrical Sub Division of Guwahati Electrical Circle-II on Deposit Scheme (line length=2.30km
(2.000km, overhead+0.300km U.G Cable)).
.
The entire work will be executed as per direction of field Engineers of APDCL.
Scheme of work: Deposit head of APDCL (LAR).
Completion period:
90 (ninety) days from the date of issue of LOI/Work Order.Parties capable of completing the work
within90(ninety) days should only participate in the bid.
Bid Validity:
The validity of the bid shall be at least 120 (One hundred twenty) days.
Earnest Money:
The earnest money for the work isRs.2, 00, 000/-(Rupees two Lakh) only.EMD should be submitted along with
Techno-Commercial bid in the form of A/C payee Demand Draft/Fixed Deposit receipt/Bankers Cheque/Bank
Guarantee from any Nationalized Bank or scheduled bank of RBI, pledged in favour of “ASSAM POWER
DISTRIBUTION COMPANY LIMITED”.Any tender without EMD will be rejected outright.
Eligibility Criteria:
(1)
The tenderer must have valid electrical contractor‘s and supervisor‘s license(HT up to 33KV) from the
statutory body, Govt. of Assam.
(2)
The bidder must have earlier experience of doing construction of at least 20 (Twenty) Km. of 33 KV lines
in last 5 years for the package in the State of Assam. Experience & performance certificate from the
concerned engineer not below the rank of DGM/CEO are to be furnished.
(3)
The bidder must not be involved in any litigation with ASEB/APDCL or any other successor company of
ASEB. The bidder should submit a declaration to that effect.
The bidder must be financially solvent so as to execute the proposed work. Financial solvency certificate
from the concerned Bank to be submitted.
(4)
(5)
The average financial turnover of the bidder in each financial year should be more than Rs. 5 (five) crore
for last 3 (three) consecutive financial years for the Package and a certificate from a Charter
Accountant to that effect must be furnished along with the Techno-commercial bid of the offer.
(6)
Past & present performance of a bidder in execution of awarded work under ASEB or any of the successor
companies shall be taken into Account in deciding the eligibility of the bidder.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
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(7)
The bidder should have adequate experience in similar nature of work and to be substantiated through
certificate issued by an Engineer not below the rank of Superintending Engineer/DGM/CEO along with
supporting copies of the works executed under any department.
Cost of Tender paper:
The tender paper will be issued on payment of Rs. 5000.00 (Five thousand) only in the form A/C payee
DD/Banker‘s Cheque (which is non refundable) duly pledged in favour of “CGM (F&A),APDCL ”. Tender paper will
be issued from the office of the CGM (D), APDCL (LAR), Bijulee Bhawan, 5th Floor, Paltanbazar, Guwahati-1, on all
working days from05. 05.2015 to 12. 05.2015.
Tender papers can also be downloaded from our official website www.apdcl.gov.in . However,
bidders must deposit Rs. 5000.00 (Five thousand ) only for the package in the form mentioned above
along with the bid, but the draft / bankers cheque to be deposited as cost of the tender paper must be of
on or before 12. 05. 2015, the date of closing of the sale/purchase of tender paper
Submission of Bids:
The Techno-commercial & price bids (both Hard & Soft copy in Excel form) must be submitted in two separate
sealed cover, super scribing the following on both the covers:
(i)
Name of bidder with full address
(II)
NIT No.
(ii)
Name of the bid i.e.“Techno-commercial bid with Earnest Money” for envelope containing Technocommercial bid and “Price Bid” for envelope containing the price bid separately.
Both the bids should be placed in one bigger sealed envelope superscribing Name of Bidder, NIT No
etc.addressed to Chief General Manager (D), APDCL (LAR), Bijulee Bhawan, Paltanbazar, Guwahati-1.
The tender (bid) will be received up to 13.00 hrs of 18.05.2015
The bids are to be submitted to the O/O the Chief General Manager (D), APDCL (LAR), Bijulee
Bhawan,5th floor, Paltanbazar, Guwahati-781001.
TheTechno-commercial bid will be opened on 13.00 hours of 18.05.2015 in presence of the intending
tenderers or their representative. The price bids of the eligible bidders will be opened on a subsequent date to be
notified later.
The company reserves the right to accept or reject any tender in part or in full or split the work without assigning any
reasons thereof.
Chief General Manager (D),
APDCL (LAR), BijuleeBhawan, 5th floor,
Paltanbazar, Guwahati-781001.
Memo No.CGM (D)/ APDCL/LAR/LAW UNIV./14-15/
dated
Copy to:1. The MD, APDCL, Bijulee Bhawan, Paltanbazar, Guwahati - 781001, for favour of information.
2. The Public Relation Officer, ASEB, 4th floor, BijuleeBhawan, Paltanbazar, Guwahati-781001.
3. The General Manager, Guwahati Zone, APDCL (LAR), Six-miles, Guwahati-781022.
4. The Chief Executive Officer, Guwahati Elect. Circle-II, APDCL (LAR), for information.
5. Concerned File.
Chief General Manager (D),
APDCL(LAR).
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 5 of 123
SECTION: 2
TENDER INVITING PROPOSAL
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 6 of 123
ASSAM POWER DISTRIBUTION CO. LTD
(LOWER ASSAM REGION)
TENDER INVITING PROPOSALS WITH TERMS & CONDITIONS FOR
Intent of the Tender Enquiry
The intent of the Tender Enquiry is to invite proposals from the prospective and relevantly experienced and financially
sound contractor(s) (individual or joint venture)/firms to carry out the works as mentioned above on turnkey mode.
1.
Scope of Work
The various activities under the scope of work shall among other related aspects cover the following.
i. Procurement and supply of those materials as specified for the Turn Key Contractor for the work.
ii. Arrange inspection / testing of any/all items ordered at manufacturer‘s works for officer deputed by APDCL for such
inspection/testing.
iii. Site unloading, storage and handling of all materials supplied including watch and ward for safe custody.
iv. Site fabrication work as per requirement.
v. Submission of implementation schedule from the date of award of contract for: Route survey for laying new line.
Erection, testing installation and commissioning of all materials/equipment supplied by Turn Key Contractor &
APDCL
vi. Project management and site organization.
vii. Obtaining clearance from Statutory Agencies, Government Departments, Village Panchayats etc. wherever
necessary
viii. Submission of technical specification/Test Certificate/Drawings/ GTPs etc. of all materials supplied.
ix. A list of various items normally involved in proposed type of work is provided in this document. This, however, is not
to be considered as limiting but only typical. Vendors‘ scope will include all other items and materials as may be
required to effectively complete the work.
x. Mapping of electric works awarded at all voltage levels on Geographical Information System (GIS).
Above all, the scope of work of the vendor/contractor will include all items and facilities as may be necessary to
complete the work on semi turnkey basis and as binding requirement.
2.
i.
ii.
iii.
iv.
v.
3.
Basic specification of the various equipment/ works to be supplied /carried out.
All equipment/materials supplied shall conform to the requirement of relevant ISS (BIS) as approved by ASEB or its successor
Company and that of APDCL specification and construction standards.
All materials supplied shall be erected, protected as per approved standard practice for proposed type of electrical work so as to
supply the electricity to the consumers most effectively and in an intrinsically safe manner.
All equipment supplied and installed shall provide easy and effective:
Maintainability
Reliability
Availability
Long life
All equipment supplied and installed shall be provided stable and adequate weather protection, system earthling etc. LA should be
earthed separately.
All items, which may require frequent opening up/ dismantling for maintenance, shall be adequately sealed against any tampering/
theft etc.
General supply and erection of materials and system shall meet the requirement of construction standard being followed in the
electrification work.
Basic qualifying requirement:
To be qualified for the package the bidder must compulsorily meet the following minimum criteria
A. Technical.
The prospective bidder must fulfill the following qualifying requirements
a. The bidder must have valid electrical Contractor‘s and Supervisor‘s License (HT) issued by the Licensing
Authority of Govt. Of Assam.
b. The bidder must have successfully erected and commissioned or completed erection works of at least 20
(Twenty) Km. of 33 KV lines in last 5(five) years.The bidder must have the above mentioned
experience of working in the state of Assam.
c. The bidder shall furnish details of the work / works along with its value already in hand either of APDCL, or
in any other successor companies of ASEB along with date of completion as per Letter of Award and likely
date of completion duly certified by the competent authority as per format enclosed as Annexure-I(A). This
shall be treated as one of the major qualifying criteria for technical evaluation of the bid. The bidder must
also fill up the format as per Annexure-I(B), I(C), I(D).
B. Financial
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 7 of 123
a.
b.
4.
i.
ii.
iii.
iv.
v.
vi.
vii.
5.
Average annual turnover of the bidder for the last three consecutive financial years should be as per NIT
and the annual turnover must be certified by a registered Chartered Accountant. This should be supported
by the copy of the income tax return submitted by the firm for the last three previous years.. In case of joint
venture firms, the figures of average annual turnovers for each Joint Venture partners shall be added
together to determine the bidder‘s compliance with the minimum average turnover requirement for the bid.
However, the lead partner must meet at least 40% and each of the other partners must meet at least 25%
of the minimum average annual turnovers criteria required for the bid.
If any bidder for certain valid reason did not undertake sufficient work in the previous three years, then
APDCL, if satisfied with the reasons, may take into account the financial turn over & experience of best of
three years out of previous five consecutive years.
If the total work in hand against the works of APDCL or any successor companies of ASEB and
other agencies exceed more than 3(three) times the average annual turnover of the bidder, the bid
shall be treated as non-responsive.
c.
The bidder shall furnish latest VAT registration, WCT, CST Registration certificate, Service tax registration,
Employee - Provident Fund and valid Labour License (wherever applicable).
d.
The bidder shall furnish copy of their Pan Card. The card must be in the name of the firm if the bidder is a
firm. If it is a joint venture copy of Pan Card of both the partner must be submitted.
e.
Joint venture agreement should be a registered one or certified by Notary.
f.
Power of attorney should be a registered one.
g.
Formal authority, Registered / Notarized for signing the tender or other documents on behalf of the
firm / individual must be submitted along with the bid. In case of registered company Board‟s
resolution of the company for authorized signatory should be furnished.
h.
Notwithstanding anything stated herein above, APDCL reserves the right to assess the capacity and
capability of the bidder to execute the work, should the circumstance warrant such assessment in the
overall interest of APDCL
Joint Venture Requirement
The Bid and, in case of successful Bid, the form of agreement shall be signed so as to be legally binding
both the partners.
One of the partners shall be authorized to be as the lead partner and this authorization shall be evidenced by
submitting a Power of Attorney signed by legally authorized signatories of the partners. Also the lead partner
must have valid electrical Contractor‘s and Supervisor‘s License (HT) issued by the Licensing Authority of
Govt. Of Assam
The lead partner shall be authorized to incur liabilities, receive payments and receive instructions for and on
behalf of any or all partners of the joint venture and the entire execution of the contract.
All the partners of the joint venture shall be jointly and severally liable for the execution of the contract in
accordance with the contract terms and a relevant statement to this effect shall be included in the
authorization mentioned under (ii) above as well as in the bid form and the form of agreement (in case of
successful bidder).
A copy of the agreement entered into by the joint venture partners shall be submitted with the bid.
The figure of average annual turnovers for the joint venture partners shall be added together to determine
the bidder‘s compliance with the minimum average turnover requirement for the package. However, the lead
partner must meet at least 40% and other partner must meet the at least 25% of the minimum average
annual turnover criteria given in the Tender.
The bidder must fill up Financial format as per FIN-I, FIN-II, FIN-III
Other requirements:
The Bidder
i) Should be acquainted himself / herself / themselves with relevant conditions of the local geography and
socio economic setup of the different location of the State and being capable accordingly to mobilize,
organize and expedite the activities.
ii) Should have adequate working personnel comprising of Electrical/ Mechanical engineers, electrical
supervisor, skilled and unskilled labour to be deputed to the proposed assignment.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 8 of 123
iii) Should be conversant with the code/ standards applicable to proposed type of work. ISS / APDCL
guidelines.
6.
Submission of bid
The bidder shall submit the bid/bids in sealed envelope/envelopes as follows:
Techno-commercial bid
Techno-commercial bid should be submitted in a sealed envelope, Superscripting ―Technocommercial bid with EMD‖ with name of bidder, full address and NIT reference, Name of Package and under
this shall include defined vendors scope of work, responsibilities, guarantees, specification of equipment,
commercial terms and conditions, vendor‘s company credentials, experience of similar assignments, registration
details, etc. as per requirement. Bidding format for techno-commercial Bid is enclosed as Annexure-I(A).
a. Earnest Money Deposit (EMD):
The Tender must be accompanied with earnest money as mentioned in the NIT against the work, to be
deposited in the form of Bank Guarantee (BG) of Nationalized Bank/ Bank Call Deposit/ Term Deposit pledged
in favour of “ASSAM POWER DISTRIBUTION COMPANY LIMITED”. The EMD should be submitted along with
Techno- Commercial bid. The earnest money will be released to the unsuccessful bidders on finalization of the
tenders. The EMD to the successful bidder will be released on submission of performance Security Deposit at
the time of execution of the agreement as per clause 14
Submission of documents with technical bids.
i)
Detail list of makes and materials offered with catalogues, technical specification ,type tests certificate ,
performance certificate from utilities, authorization letter from manufacturer, customer list etc.
ii) Certificates and testimonials in support of credentials of the bidder‘s organization.
iii) Details of past experience along with present works in hand with awarded amount and progress report.
iv) Brief write-up on methodology to carry out the assignment, if awarded.
v) Details of manpower to be engaged for the assignments.
vi) Any other information, the vendor may feel facilitative in evaluating the bid.
vii) Copies of bidder and supervisor‘s license, etc.
viii) Certificate from Registered Charted Accountant in support of Annual turn over
ix) Solvency certificate from Bank
x) Certificate in support of performance of the bidder
xi) If the bidder is involved in any litigation with ASEB/ or any successor company of ASEB. The bidder should
xii) Furnish the information to that effect.
xiii) The bidder should submit the list of materials that are to be brought from outside the state
xiv) GTP‘S of major items as described in BOQ. such as poles, conductors , insulators, surge arrestor,
D.O,GOAB Stay Set, Earth pipe etc as per bid requirements should invariably be submitted along with the
tender otherwise tender is liable to be rejected .
b. Price Bid
Price bid should be submitted in a sealed envelope superscripting ―Price Bid‖ with name of bidder, NIT
reference No, Name of Packageand both soft copy and hard copy of the bid in Excel Formatare to be submitted.
This will include rates of supply and erection of different items for erection. The bidding format for price Bid is
enclosed as Annexure-II (A).
c. Submission of bid
Both the envelope should be placed in a bigger envelope duly sealed superscripting name of bidder,
NIT reference, Name of Package and addressed to CGM(D), APDCL(LAR), Bijulee Bhawan, Paltanbazar,
Guwahati-1.
Note:-:
a. If there is discrepancy between the unit price and the total price that is obtained by multiplying the unit price and quantit y, the
unit price shall prevail and total price should be corrected. If there is a discrepancy between the words and figures, the
amount in word should prevail. If the bidder does not accept the correction of the errors as above, his bid will be rejected and
the amount of bid guarantee/security will be forfeited.
b. No separate declaration offering discount on price will be allowed. Offered price in the price schedule will be final.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 9 of 123
c. All custom duties, excise duties, import duties, toll, octroi royalty, entry tax etc. whichever is applicable shall be
included in the tender price and no claim of any account of any of the above shall be entertained by APDCL. WCT
and service tax should be shown separately. E-1 transaction shall not be allowed.
7.
a.
b.
8.
9.
10.
Estimation of material requirement: The total quantity of materials required is indicated in the BOQ
Quantity Variation: There may increase or decrease in quantity of individual item subject to the condition that
the corresponding change in total contract value does not increase or decrease by more than 10% keeping the
unit rate of individual material and labour unchanged.
A maximum of 5% wastage/damage on dismantled items shall be allowed on the total quantity
dismantled and deposited to departmental store against conversion works if any.
Award of work:
i)
The evaluation of bids will be carried out, first of techno-commercial bid and thereafter opening the price bid of
only those who qualify and meet the technical requirement.
ii)
Company reserves the right not to order/ award the job to the price-wise lowest party if the party during
evaluation is found technically non responsive.
iii) Work should be started within fifteen 15 (fifteen) days from the date of issue of the work order, failing which
order will be cancelled without further correspondence.
iv) The successful bidder must have to complete survey works within 3 (three) days from date of issue of LOI &
submit quantity variation within that period.
v)
The Sub-station equipments installed shall be under custody of the contractor till the date of commissioning
and charging. The properties will be taken over by APDCL, LAR after satisfactory commissioning and
charging.
Period of completion 90 (ninety) days from the date of issue of LOI/Work order.
Implementation schedule:
Comprehensive implementation schedule of work for the mentioned works
1
5 days
25 days
1 day
1 5 days
Description
12 days
Sl
no.
2 days
EXECUTION PERIOD
Signing of Agreement
2
Survey works
3
Manufacture & supply of materials
4
Erection of equipments
5
Testing & commissioning
11. Terms of Payment:
a)
During the currency of the contract, maximum of 2(two) nos. of progressive payment on the actual work
done (i.e. supply +erection) can be made against the claims preferred by the contractor subject to 80% of the
claimed amount. 20% will be retained as security deposit which will be released along with final bill on
satisfactory completion including commissioning.
All payment shall be made from the office of the CGM (F &A), APDCL on recommendation of the CGM
(D), APDCL, LAR after due verification by the concerned SDE and duly passed by the Asstt. General Manager
concerned and countersigned by the concerned CEO and on submission of work progress report (as per format
enclosed herewith). Bills whether progressive or final shall be entertained only after completion of both
supply and erection of works of specified items.
b)
The right of the contractor/supplier to have payment or reimbursement of any cost for execution of works/supply
of materials as the case may be, against this order will be forfeited or deemed to have been relinquished if the
claim for it is not preferred to the appropriate authority within 6 (Six) months from the date of completion or
deemed completion as per cause No. 25.0 of Company‘s General Conditions of Supply and Erection.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
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12. Agreement and Security deposit
The successful bidders shall have to made an agreement with the CGM (D), APDCL, LAR and shall have to
deposit security money in the form of Bank Guarantee issued by any Nationalized Bank or scheduled bank of RBI in
Company‘s standard proforma on non-judicial stamp of appropriate value for an amount equal to 2.5% of the
contract value at the time of execution of agreement in favour of “CGM (F&A), APDCL”. The security deposit is
liable to be forfeited in case of non-execution of contract / work order. The security deposit will be released on
successful commissioning and testing of the materials ordered and after depositing performance B/G.
a.
b.
If the contractor fails or neglects to perform any of his obligations under the contract within the guarantee
period, APDCL shall have the right to forfeit the BG submitted against performance either in full or in part at its
absolute discretion.
No interest shall be payable on such deposits.
All Bank Guarantees (BG) submitted along with the bid or to be submitted later should be from those branches
of nationalized or scheduled Bank of RBI having their regional offices in Assam or at least a branch office at
Guwahati (In case of those, whose regional office is not located in the state of Assam) with a certificate from the
Bank to the effect that the verification or any confirmation in regard to the BG issued by the bank can be taken up
with the Branch office at Guwahati..
A Performance Bank Guarantee from any Nationalized Bank in Board‘s Standard Proforma, with a
validity of 18(eighteen) months from the date of successful commissioning of the work, for an amount equal to
10% of the total value of worksexecuted shall have to be furnished by the contractor before releasing the final
payment to the CGM (D), APDCL, LAR in favour of the CGM (F &A), APDCL.
13. Project Management and site Organizations:
In Consideration of the tight schedule of the project, the successful bidder(s) /Contractor(s) shall exercise systematic
closely controlled project management system with the aid of commonly used soft tools. Following are the major
activities/deliverables to be organized /generated for submission to the Board.
(I)
Liaison/Construction offices will be established in each Circle of APDCL,LAR.
(II)
Work Progress Report:
Progress monitoring by the contractor as per implementation schedule and approved milestones.
Fortnightly progress report will be submitted to the concern Deputy General Manager, Asstt. General
Manager & Sub-Divisional Engineers.
The progress report will highlight the points like, work completion vis-à-vis planned, plan for next working
period, delay analysis vis-à-vis committed schedule with reasons and remedies, etc.
(III)
Site Organization.
The vendor at each working site shall establish the following.
Store house
Site fabrication facilities
Construction supervision office
All offices shall be adequately furnished and staffed so as to take all site decisions independently without frequent
references to head Work‘s/offices.
14.
Guarantees and Penalties
a) Liquidated Damages (LD) The proposed work is on top priority of Government of Assam and therefore has to be
completed within stipulated/agreed schedule. Any delay beyond that will attract penalty as per Company‘s
General condition of supply and erection.
b) Equipment and system supplied & installed shall be guaranteed individually for integrated operations for a
period of 18 (Eighteen) months from date of commissioning of a system in general.
c) Warranty from the manufacturer shall be produced along with manufacturer‘s test certificate for all equipment/
materials covered under Manufacturer‘s warranty.
15.
Approvals/Clearances:
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 11 of 123
1. APDCL, concerned DGM shall approve all site/location and documents prepared by the contractor for
construction of the S/S.
2. GTP and drawings of all equipment/ materials shall be approved by the concerned CEO of the Elect. Circle,
APDCL (LAR).
3. The contractor shall obtain all statutory approvals and clearances from the statutory authorities before charging
the system at his/her own cost.
16.
Testing & Inspection:
All the equipments / materials to be supplied and erected shall be tested /inspected at manufacturer‘s works by
authorized officer/ Engineers of APDCL before dispatching them to worksite. The contractor shall intimate the CEO,
Guwahati Elect. Circle-II, APDCL, LAR sufficiently in advance regarding the date of inspection of materials/
equipments at manufacturer‘s works. The materials are to be dispatched to site only after receipt of dispatch clearance
to be issued by the CEO, Guwahati Elect. Circle-I for works under his control after satisfactory testing of the same.
17.
Environmental Considerations:
While carrying out the assignment, no damage to environment /forests will be caused by the contractor. If so done,
the contractor will have to compensate the same to the satisfaction of the concerned Authority.
18.
Submission of documents.
a)
With bids. -----As per clause 7c
b)
During project execution
i)
All documents for approval shall be submitted in 6 copies.
ii)
All final documents to be submitted to statutory organizations will be furnished as per requirement of the
Authority.
19.
Funding of the project. The proposed work is funded by deposit head of APDCL (LAR).
20.
Ceiling on acceptance of bid value
As a deterrent for cartel formation APDCL at its discretion have the right to scrap the tender if values quoted by all
the bidders is above 25% of the estimated cost. Also the price bids whose total quoted value is below 15% of the
estimated cost, the bid is liable to be rejected by APDCL
21.
Termination of contract on Contractor‟s default
If the Contractor shall neglect to execute the Works with due diligence and expertise or shall refuse or neglect to
comply with any reasonable order given to him, in the Contract by the Engineer in connection with the works or shall
contravene the provisions of the Contract, the owner may give notice in writing to the contractor to make good the
failure, neglect or contravention complained of. Should the contractor fail to comply with the notice within thirty (30)
days from the date of serving the notice, then and in such case the Owner shall be at liberty to employ other
workmen and forthwith execute such part of the works as the Contractor, may have neglected to do or if the owner
shall think fit, without prejudice to any other right he may have under the Contract to take the work wholly or in part
out of the contractor‘s hands and re-contract with any other person or persons to complete the works or any part
thereof and in that event the Owner shall have free use of all Contractor‘s equipment that may have been at the time
on the site in connection with the works without being responsible to the Contractor for fair wear and tear thereof and
to the exclusion of any right of the contractor over the same, and the Owner shall be entitled to retain and apply any
balance which may otherwise be due on the Contract by him to the contractor, or such part thereof as may be
necessary, to the payment of the cost of executing the said part of the work or of completing the Works as the case
may be. If the cost of completing of Works or executing a part thereof as aforesaid shall exceed the balance due to
the contractor, the contractor shall pay such excess. Such payment of excess amount shall be independent of the
liquidated damages for delay which the contractor shall have to pay if the completion of works‘ is delayed.
In addition, such action by the Owner as aforesaid shall not relieve the Contractor of his liability to pay liquidated
damages for delay in completion of works as defined in clause no.26 of GCSE
Such action by the Owner as aforesaid, the termination of the Contract under this clause shall neither entitle the
contractor to reduce the value of the contract Performance Guarantee nor the time thereof. The contract
Performance Guarantee shall be valid for the full value and for the full period of the contract including guarantee
period.
22.
Termination of contract on owners‟ initiative
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 12 of 123
The Owner reserves the right to terminate the Contract either in part or in full due to reasons other than those
mentioned under clause entitled ―Contractor‘s Default.‖ The Owner shall in such an event give fifteen (15) days
notice in writing to the Contractor of his decision to do so.
The Contractor upon receipt of such notice shall discontinue the work on the date and to the extent specified in the
notice, make all reasonable efforts to obtain cancellation of all orders and contracts to the extent they are related to
the work terminated and terms satisfactory to the Owner, stop all further sub-contracting or purchasing activity
related to the work terminated, and assist the Owner in maintenance, protection, and disposition of the Works
acquired under the Contract by the Owner.
In the event of such a termination, .the Contractor shall be paid compensation, equitable and reasonable, dictated by
the circumstances prevalent at the time of termination.
If the Contractor is an individual or a proprietary concern and the individual or the proprietor dies and if the contractor
is a partnership concern and one of the partners dies then unless the Owner is satisfied that the legal
representatives of the individual contractor or of the proprietor of propriety concern and in the case of partnership,
the surviving partners, are capable of carrying out and completing the Contract, the Owner shall be entitled to cancel
the Contract as to its uncompleted part without being in any way liable to payment of any compensation to the estate
of deceased Contractor and/or to surviving partners of the contractor‘s firm on account of the cancellation of the
contract. The decision of the owner that the legal representatives of the deceased contractor or surviving partners of
the contractor‘s firm cannot carry out and complete the contract shall be final and binding on the parties. In the event
of such cancellation, the Owner shall not hold the estate of the deceased Contractor and/or the surviving partner of
the Contractor‘s firm liable to. Damages for not completing the Contract
23.
Frustration of contract
In the event of frustration of the contract of supervening impossibility in items of Section 56 of the Indian Contract
Act, parties shall be absolved of their responsibility to perform the balance portion of the contract.
In the event of non-availability or suspension of funds for any reasons whatsoever (except for reason of willful or
flagrant breach by the Owner and/or contractor) then the Works under the contract shall be suspended. Furthermore,
if the Owner is unable to make satisfactory alternative arrangements for financing to the contractor in accordance
with the terms of the Contract within three months of the event, the parties hereto shall be relieved from carrying out
further obligations under the Contract treating it as frustration of the Contract. In the event Performance Bank
Guarantee, the parties shall mutually discuss to arrive at reasonable on all issues including amounts due to either
party for the work already done on ―Quantum merit‖ basis which shall be determined by mutual agreement between
the parties.
24.
Disclaimer:
While the Company will make every endeavor to extend necessary facilitation in expediting the work, the contractor
shall be responsible to organize and arrange all necessary inputs right from mobilization activities up to completion of
the project. Company will not entertain any failure / delay on such accounts. Also, Company will not be responsible
for any compensation, replenishment, damage, theft etc. as may be caused due to negligent working, insufficient
coordination with Government / non Government / Local Authority by the contractor and/ or his personnel deputed for
work. The contractor shall take necessary insurance coverage under LIC/GIC. etc. for his working personnel and the
goods in store as well as in transit. The contractor will be deemed to have made him acquainted with the local
working conditions at site(s) and fully provide for into the bid submitted.
25.
If for any reason the last date of receiving and opening of tender or the date of pre-bid discussion is a declared
holiday the next working day will be considered for receiving and opening of bid or pre bid discussion.
26.
In case any clause mentioned in the bid document contradicts or differ any clause of theAPDCL‘s General condition
of Supply and Erection the clauses appended in this document will prevail.
27.
The intending bidders are requested to physically survey the location of the line and Sub-Station. The BOQ shown in
the bid document are only indicative and in case the bidder feel that some additional item are required to complete
the work in totality they may indicate the same separately with unit rate along with the price bid but in a separate
sheet. The evaluation of the bid shall however be done on the basis of materials stated in the BOQ of the bid. Also
Before submitting the tender the bidder should have discussion with concerned Sub-divisional Engineer /Asstt.
General Manager of APDCL.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 13 of 123
28.
The quantity mentioned in the bill of quantity (BOQ) and price bidding schedule are purely provisional and shall be
finalized on completion of detailed survey work and submission of bill of materials thereof subject to quantity variation
clause mentioned in clause 8
Terms and conditions, which are not specified, herein above will be governed by
Company‟s General Conditions of supply and erection in force.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 14 of 123
Annexure –I(A)
Tender Format part – I (Techno-commercial Bid)
NIT No: CGM (D)/APDCL/LAR/LAW UNIV./15-16 / D-14
1.
Name and full address of the Bidder.
:
2.
Particulars of payment made for Purchase of
tender document in the shape of .
:
3.
Amount of earnest money paid in the shape of
:
4.
Whether Sales Tax clearance
certificate submitted
:
5.
VAT Registration. No/ Service Tax Regd. No.
:
6.
Acceptance of guarantee clause of
Materials /equipment and system
Installed individually and for integrated
Operation.
:
7.
Acceptance of penalty clause
:
8.
Acceptance of terms of payment
:
9.
Certificate/ documents regarding adequate
Experience of doing similar job
:
10.
Details of work presently in hand with amount
(Awarded by APDCL and other successor
Companies of ASEB)- a separate sheet if
Required may be enclosed.
:
11.
Details of manpower and T&Ps including
Vehicles available with the firm to be
enclosed separately.
:
12.
List of documents enclosed
.
a)
….
b)
….
c)
….
:
Yes / No
Signature with full name
and designation of bidder or
his/herauthorized representative
with seal
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 15 of 123
Annexure-I(B)
Furnished
Sl.
Qualification Requirement
No.
LEGAL
1
Document in support of legal status of firm
2
Memorandum of Association &Registered/Notarized Joint venture Agreement if JV
in the Bid.
4
Board resolution of the company to authorizing the signatory
Information regarding any litigation, current or during the last five years, in which the
5
Bidder is involved, the parties concerned, and disputed amount
6
Valid Electrical Contractor‘s License
7
Valid Electrical & Supervisory License
8
VAT/CST/WCT/Service Tax registration certificate
9
Provident Fund Registration Certificate
10.
Valid Labour license
B
Financial
1
Audited Balance sheet, Profit & Loss account, Auditor‘s report for last three year
2
CA Certified Turnover of bidder during the last 3(three) years.
Evidence of adequacy of working capital for this contract (access to line (s) of credit
and availability of other financial resources)
4
Authority to seek references from the Bidder's Bankers
5
Income Tax return for last 3(three) years
7
Remark
Registered/Notarized power of attorney of the signatory of the Bidder to participate
3
6
Page
Annexure
A
3
at
Value of similar work performed by the bidder in each of the last five years –
Statement
Proposals for subcontracting components of the Works amounting to more than 10
percent of the Contract Price
8
Details of the Bank Guarantee as EMD(BG/TD/Bank Call Deposit)
C
Technical ability and experience
Experience in works of a similar nature and volume for each of the last 5(five) years
1
and details of works under way or contractually committed including full address of
client for communication- Statement
Certificates issued by an Engineer not below the Cadre of Deputy General
2
Manager/SE along with supporting photo-copies of agreements for the works
executed in any one year (12 months)
3
4
5
6
D
Detailed activity plan and methodology supported with layout and necessary
drawings and calculations (detailed) to allow the employer to review their proposals.
Quality Assurance plan with Bar Chart
List of technical personnel and their qualification and experience with organization
chart
Proof of availability of the tools, tackles, spare parts, etc. for carrying out the works.
Technical particulars of equipments and Materials offered in the Bill of
Material and their GTPs
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 16 of 123
ANNEXURE- I(C)
LIST OF ONGOING & COMPLETED PROJECTS
List of ongoing & completed projects of APDCL & Other successor companies of ASEB
Sl.No
Name of the
. work
Order No
Contract value
Scheme
Stipulated date
completion
of
Present Status
11
1
2
3
Annexure- I(D)
BIDDER‟S INFORMATION SHEET:
Bidder‟s Information
Bidder‟s legal name
In case of JV, legal name of each
partner
Bidder‟s
country
of
constitution
Bidder‟s year of constitution
Bidder‟s legal address in
country of constitution
Bidder‟s
authorized
representative
(name,
address,
telephone
numbers, fax numbers, e-mail
address)
Attached are copies of the following original documents.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 17 of 123
FINANCIAL SITUATION (FIN-1)
Each bidders or member of JV must fill in this form
Financial Data for Previous 3 Years [Rs in lakhs]
Year 1:
Year 2:
Year 3:
Information from Balance Sheet
Total Assets
Total Liabilities
Net Worth
Current Assets
Current Liabilities
Information from Income Statement
Total Revenues
Profits Before Taxes
Profits After Taxes

Attached are copies of financial statements (balance sheets including all related notes, and income statements) for the last three years, as
indicated above, complying with the following conditions
Form FIN - II: Average Annual Turnover
Each Bidder or member of a JV must fill in this form
Annual Turnover Data for the Last 3 Years
Amount (Rs. In lakhs)
Year
Average Annual Turnover
The information supplied should be the Annual Turnover of the Bidder or each member of a JV in terms of the amounts
billed to clients for each year for contracts in progress or completed in ₹(Rupees).
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 18 of 123
Form FIN – III: Financial Resources
Specify proposed sources of financing, such as liquid assets, unencumbered real assets, lines of credit, and
other financial means, net of current commitments, available to meet the total construction cash flow demands
of the subject contract or contracts as indicated in Section 3 (Evaluation and Qualification Criteria)
Financial Resources
No.
Source of financing
Amount (Rs. In lakhs)
1
2
3
4
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 19 of 123
SECTION: 3
BILL OF QUANTITIES
&
PRICE BIDDING SCHEDULE
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 20 of 123
BILL OF QUANTITY
WORK
Package
Construction of 33KV line from 132/33KV SishugramSubStation to 33/0.433KV, 2x2000KVA
SubStation of National Law University & Judicial Academy, Amingaon under Amingaon Electrical
Sub Division of Guwahati Electrical Circle-II under Deposit Scheme (line length=2.30km (2.000km,
overhead+0.300km U.G Cable)) on “Turnkey” mode.
SCHEME: DepositPROSPECTIVE CONSUMER: National Law University & Judicial Academy
Sl
no
1
Particulars of materials
GI Steel Tubular Pole SP-76
Unit
Total
Qty
No
72
2
GI Steel Tubular Pole SP-66
No
9
3
Grouting of tubular pole
No
81
4
33KV CTPT Set(100/5A)
GI wire 6 SWG
GI wire 8 SWG
G.I. 33KV Top Cleat (100x50x6x350mm)
C.I. Earth pipe 100mm
GI Channel 100x50x6x3200mm
GI Channel 100x50x6x5000mm
GI Angle 50x50x6 mm
I Hook G.I.
33KV Disc Insulator composite Polymeric
33KV Pin insulator composite polymeric
Pole clamp GI
AAAC Wolf conductor
H.T.Stay set
Stay wire 7/10 SWG
H.T.Guy insulator
P.G. Clamp for wolf
GI Nuts & Bolts (Assorted), washer
Set
2
Kg
2600
Kg
1800
No
38
No
120
No
150
No
30
mtr
700
No
400
Set
222
Set
236
No
800
Km
6.8
Set
64
Kg
960
No
64
No
160
Kg
1100
Kg
150
mtr
300
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
GI strip 50x10mm
control cable 2c,4c,7c,10c & 14cx2.5sqmm
33KV C&R panel for Tr. With diff. relay
33KV VCB with GI mounting
33KV CT with GI Mounting (200-100/5)
33KV/110V PT with GI mountings
33KV LA 10 KA with surge monitor GI Mountings
33KV Lightning Arrester line type
33KV line Isolator 400A with E/S
33KV Isolator without E/S
HT Danger Plate
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
No
1
Set
1
Set
1
Set
1
Set
1
Set
3
No
1
No
2
No
80
Remarks
APDCL
SUPPLY
Page 21 of 123
33
34
35
36
37
38
39
40
41
42
43
44
33KV DO set
Bimetallic Lug (Assorted)
Installation of earth mat with GI Flats & Pipes
PCC Foundation for CT/PT/LA
PCC Foundation for VCB
PCC Foundation for Isolator (Set)
Security fencing with RCC Footing
Cable Trench for Control Cable size 950x450mm
33KV XLPE 1-core 300sqmm(Al.) Cable Armoured
U.G.Cable trench digging, filling and materials
Switchyard gravelling of 0.15mtr thick 40mm stone
Sub Station lighting with 4 nos. sodium vapour lamp coplet
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Set
2
No
50
Sqmtr.
100
CuMtr.
6
Each
1
Set
3
RM
60
RM
60
Mtr.
60
Mtr.
60
Sqmtr.
200
No
1
Page 22 of 123
Annexure –II(A)
Tender Performa Part-II (PRICE BID) NIT No: CGM (D)/APDCL/LAR/LAW UNIV./15-16 / D-14
The schedule of item wise rates for the Single Package of Works consisting of following works on ―Turnkey‖ mode under deposit head of APDCL( LAR).
Package:Construction of 33KV line from 132/33KV SishugramSubStation to 33/0.433KV, 2x2000KVASubStation of National Law University & Judicial Academy,
Amingaon under Amingaon Electrical Sub Division of Guwahati Electrical Circle-II under Deposit Scheme (line length=2.30km (2.000km, overhead+0.300km U.G Cable))
on ―Turnkey‖mode.
NB. Bidder should fill up all columns properly. If any column of taxes and duties is left blank or written as NA, the applicable taxes against that item shall be added in bid evaluation.
Supply of materials
Sl.
No
Brief Item Description
1
1
Unit
Qty
3
4
2
GI Steel Tubular Pole SP-76 including grouting
with PCC in the ratio 1:3:6 as per drawing and
direction.
No
5
6=(4x5)
Unit
Erection/
installation
charges
(Rs)
Total
Erection
cost
(Rs)
7
8=(4x7)
Total cost of
supply&
erection
(Rs)
9=(6+8)
72
2
GI Steel Tubular Pole SP-66 including grouting
with PCC in the ratio 1:3:6 as per drawing and
direction.
No
9
3
33KV CTPT Set(100/5A) with metering cabinet
Set
2
4
GI wire 6 SWG
Kg
2600
5
GI wire 8 SWG
Kg
1800
6
G.I. 33KV Top Cleat (100x50x6x350mm)
No
38
7
C.I. Earth pipe 100mm
No
120
8
GI Channel 100x50x6x3200mm
No
150
9
GI Channel 100x50x6x5000mm
No
30
10
GI Angle 50x50x6 mm
Mtr.
700
11
I Hook G.I.
No
400
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Unit price
of item,
Total
inclusive
Amount
of ED, F&I
(Rs)
up to
work site
Erection of Materials
APDCL
SUPPLY
0
Page 23 of 123
Work
Contract
Tax @ 5%
(Rs)
Grand
Service Tax @
Total
12.36%
(Rs)
10=(9x5%)
11=(8x12.36%)
12=9+10+11
12
33KV Disc Insulator composite Polymeric
Set
222
13
14
15
33KV Pin insulator composite polymeric
Pole clamp GI
AAAC Wolf conductor
Set
No
Km
236
800
6.8
16
H.T.Stay set
Set
64
17
Stay wire 7/10 SWG
Kg
960
18
H.T.Guy insulator
No
64
19
P.G. Clamp for wolf
No
160
20
GI Nuts & Bolts (Assorted), washer
Kg
1100
21
GI strip 50x10mm
Kg
150
22
control cable 2c,4c,7c,10c & 14cx2.5sqmm
Mtr.
300
23
33KV C&R panel for Tr. With diff. relay
No
1
24
33KV VCB with GI mounting
Set
1
25
33KV CT with GI Mounting (200-100/5)
Set.
1
26
33KV/110V PT with GI mountings
Set
1
27
33KV LA 10 KA with surge monitor GI Mountings
Set
1
28
33KV Lightning Arrester line type
Set
3
29
33KV line Isolator 400A with E/S
No
1
30
33KV Isolator without E/S
No
2
31
HT Danger Plate
No
80
32
33KV DO set
Set
2
33
Bimetallic Lug (Assorted)
No
50
34
Installation of earth mat with GI Flats & Pipes
Sqmtr.
100
35
PCC Foundation for CT/PT/LA
Cumtr.
6
36
PCC Foundation for VCB
Each
1
37
PCC Foundation for Isolator (Set)
Set
3
38
Security fencing with RCC Footing
RM
60
39
Cable Trench for Control Cable size 950x450mm
RM
60
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 24 of 123
40
33KV XLPE
Armoured
41
U.G.Cable trench digging, filling and materials
42
43
1-core
300sqmm(Al.)
Cable
Switchyard gravelling of 0.15mtr thick 40mm
stone
Sub Station lighting with 4 nos. sodium vapour
lamp coplet
Mtr.
60
Mtr.
60
Sqmtr.
200
No
1
ITEMWISE BREAKUP PRICE (ALL TAXES & DUTIES) OF THE PACKAGE COMPULSORY TO BE SHOWN SEPARATELY. BIDS WITHOUT THE BREAKUP
WILL BE REJECTED OUTRIGHT.
Total Value for the Package-:Rs. ……………………… (In words)
Signature of the Bidder with seal
Name of Signatory:
Telephone/Mobile No:
FAX No:
E-Mail Address
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 25 of 123
SECTION: 4
GENERAL REQUIREMENTS
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 26 of 123
GENERAL REQUIREMENTS
The bidder shall comply with the following general requirements along with other specifications.
1.0
1.1
1.2
1.3
QUALITY ASSURANCE PLAN
The bidder shall invariably furnish the following information along with his offer failing which the offer shall be
liable for rejection. Information shall be separately given for individual type of equipment offered.
i)
The structure of organization
ii)
The duties and responsibilities assigned to staff ensuring quality of work
iii)
The system of purchasing, taking delivery and verification of materials
iv)
The system for ensuring quality of workmanship
v)
The quality assurance arrangements shall confirm to the relevant requirement of ISO 9001 on ISO 9002
as applicable.
vi)
Statement giving list of important raw materials, names of sub-supplies for the raw materials, list of
standards according to which the raw material are tested, list of tests normally carried out on raw
material in the presence of suppliers representative, copies of test certificates.
vii)
Information and copies of test certificates as on (i) above in respect of bought out items
viii) List of manufacturing facilities available
ix)
Level of automation achieved and list of areas where manual processing exists.
x)
List of areas in manufacturing process, where stage inspections are normally carried out for quality
control and details of such test and inspection.
xi)
List of testing equipment available with the bidder for final testing of equipment specified and test plant
limitation, if any vis-à-vis the type. Special acceptance and routine tests specified in the relevant
standards. These limitations shall be very clearly brought out in "Schedule of Deviations" from the
specified test requirement.
The contractor shall within 30 days of placement of order, submit the following information to the purchaser.
i) List of the raw material as well as bought out accessories and the names of sub-suppliers selected
from those furnished along with the offer.
ii) Type test certificated of the raw material and bought out accessories if required by the purchaser.
iii) Quality Assurance Plant (QAP) with hold points for purchasers inspection. QAP and purchasers hold
points shall be discussed between the purchaser and contractor before the QAP is finalized.
The contractor shall submit the routine test certificates of bought out accessories and central excise asses for
raw material at the time of routine testing if required by the purchaser and ensure that the quality assurance
requirements of specification are followed by the sub-contractor.
The Quality Assurance Programme shall give a description of the Quality System and Quality Plans with the
following details.
i)
Quality System
The structure of the organization.
The duties and responsibilities assigned to staff ensuring quality of work.
The system of purchasing, taking delivery of verification of materials
The system of ensuring of quality workmanship.
The system of control of documentation.
The system of retention of records.
The arrangement of contractor internal auditing.
A list of administrator and work procedures required to achieve contractor‘s quality requirements.
These procedures shall be made readily available to the purchaser for inspection on request.
ii)
Quality Plans
An outline of the proposed work and program sequence.
The structure of contractor‘s organizations for the contract.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 27 of 123
The duties and responsibilities ensuring quality of work.
Hold and notification points.
Submission of engineering documents required by this specification.
The inspection of the materials and components on request.
Reference to contractor‘s work procedures appropriate to each activity.
Inspection during fabrication /construction.
Final inspection and test.
2.0
2.1
2.2
2.3
2.4
2.5
Inspection
The Owner's representative or third party nominee shall at all times be entitled to have access to the works
and all places of manufacture, where insulator, and its component parts shall be manufactured and the
representatives shall have full facilities for unrestricted inspection of the Contractor's and sub-Contractor's
works, raw materials, manufacture of the material and for conducting necessary test as detailed herein.
The material for final inspection shall be offered by the Contractor only under packed condition as detailed in
the specification. The Owner shall select samples at random from the packed lot for carrying out acceptance
tests. Insulators shall normally be offered for inspection in lots not exceeding 5000 nos. the lot should be
homogeneous and should contain insulators manufactured in the span of not more than 3-4 consecutive
weeks.
The Contractor shall keep the Owner informed in advance of the time of starting and the progress of
manufacture of material in their various stages so that arrangements could be made for inspection.
No material shall be dispatched from its point of manufacture before it has been satisfactorily inspected and
tested unless the inspection is waived off by the Owner in writing. In the latter case also the material shall be
dispatched only after satisfactory testing for all tests specified herein have been completed.
The acceptance of any quantity of material shall be no way relieve the Contractor of his responsibility for
meeting all the requirements of the specification and shall not prevent subsequent rejection, if such material
are later found to be defective.
3.0
3.1
3.2
4.0
4.1
4.2
4.3
4.4
5.0
5.1
Additional Tests
The Owner reserves the right of having at his own expense any other test(s) of reasonable nature carried out
at Contractor's premises, at site, or in any other place in addition to the type, acceptance and routine tests
specified in these bidding documents against any equipments to satisfy himself that the material comply with
the Specifications.
The Owner also reserves the right to conduct all the tests mentioned in this specification at his own expense
on the samples drawn from the site at Contractor's premises or at any other test center. In case of evidence
of noncompliance, it shall be binding on the part of the Contractor to prove the compliance of the items to the
technical specifications by repeat tests or correction of deficiencies, or replacement of defective items, all
without any extra cost to the Owner.
Test Reports
Copies of type test reports shall be furnished in at least six (6) copies along with one original. One copy shall
be returned duly certified by the Owner only after which the commercial production of the concerned materials
shall start.
Copies of acceptance test reports shall be furnished in at least six (6) copies. One copy shall be returned duly
certified by the Owner, only after which the material shall be dispatched.
Record of routine test reports shall be maintained by the Contractor at his works for periodic inspection by the
Owner's representative.
Test certificates of test during manufacture shall be maintained by the Contractor. These shall be produced for
verification as and when desired by the Owner.
List of Drawings and Documents:
The bidder shall furnish the following along with bid.
i)
Two sets of drawings showing clearly the general arrangements, fitting details, electrical connections
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 28 of 123
ii)
iii)
etc.
Technical leaflets (user‘s manual) giving operating instructions.
Three copies of dimensional drawings of the box for each quoted item.
The manufacturing of the equipment shall be strictly in accordance with the approved drawings and no deviation
shall be permitted without the written approval of the purchaser. All manufacturing and fabrication work in
connection with the equipment prior to the approval of the drawing shall be at the supplier's risk.
Approval of drawings/work by purchaser shall not relieve the supplier of his responsibility and liability for ensuring
correctness and correct interpretation of the drawings for meeting the specification.
5.2
The requirements of the latest revision of application standards, rules and codes of practices. The equipment
shall conform in all respects to high standards of engineering, design, workmanship and latest revisions of
relevant standards at the time of ordering and purchaser shall have the power to reject any work or materials
which, in his judgment is not in full accordance therewith.
5.3
The successful Bidder shall within 2 weeks of notification of award of contract submit three sets of final
versions of all the drawings as stipulated in the purchase order for purchaser's approval. The purchaser shall
communicate his comments/approval on the drawings to the supplier within two weeks. The supplier shall, if
necessary, modify the drawings and resubmit three copies of the modified drawings for their approval. The
supplier shall within two weeks. Submit 30 prints and two good quality report copies of the approved drawings
for purchaser's use.
5.4
Eight sets of operating manuals/technical leaflets shall be supplied to each consignee for the first instance of
supply.
5.4.1 One set of routine test certificates shall accompany each dispatch consignment.
5.4.2 The acceptance test certificates in case pre-dispatch inspection or routine test certificates in cases where
inspection is' waived shall be got approved by the purchasers.
6.0
Any Item specification if not available in this document Contractor shall supply and execute the items meeting
the relevant IS specification with the approval of the purchaser.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
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SECTION :5
FORMS OF BID
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 30 of 123
PROFORMA OF BANK GUARANTEE FOR BID GUARANTEE/SECURITY
(To be stamped in accordance with Stamp Act)
The non-Judicial stamp paper should be in the name of issuing bank
Ref…………………………..
Bank Guarantee No…………..
Date…………………….
To
The Chief General Manager (D)
Assam Power Distribution Company Ltd (LAR)
Bijulee Bhawan, Paltanbazar
Guwahati-1
Dear Sir/ Madam,
In accordance with invitation to bid under your Bid No………………. M/s………………. having its Registered/ Head
Office at ……………..( hereinafter called the ‗Bidder‘) wish to participate in the said Bid or ………………… and you, as
a special favour have agreed to accept an irrevocable and unconditional Bank Guarantee for an amount of
……………….. validupto……………………. On behalf of Bidder in lieu of the Bid deposit required to be made bythe
bidder, as a condition precedent for participation in the Said Bid.
We, the …………………. Bank at …………………… have our Head Office at…………..( local address) guarantee and
undertake
to
pay
immediately
on
demand
by
,
the
Amount
of
………………………………………………………………………………………………..( in words & figures) without any
reservation, protest, demur and recourse. Any such demand made by said ‗Owner‘ shall be conclusive andbinding on
us irrespective of any dispute or difference raised by the Bidder.
The Guarantee shall be irrevocable and shall remain valid up to and including …………. @....................... if any
further extension of this guarantee is required, the same shall be extended to such required period ( not exceeding
one year) on receiving instruction from M/s ………… … ………. on whose behalf this guarantee is issued.
In witness whereof the Bank, through its authorized office, has set its hand and stamp on this
…………… day of ………………….. 20………… at …………………………
WITNESS
………………………
(Signature)
……………………..
(Name)
…………………….
( Official Address)
…………………….
( Signature)
……………………
(Name)
……………………
(Official Address)
@ This date shall be thirty (30) days after the last date for which the bid is valid.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
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PROFORMA OF BANK GUARANTEE FOR CONTRACT PERFORMANCE
(To be stamped in accordance with Stamp Act)
Ref…………………………..
Bank Guarantee No…………..
Date…………………….
To
The Chief General Manager (D)
Assam Power Distribution Company Ltd (LAR)
Bijulee Bhawan, Paltanbazar
Guwahati-1
Dear Sir/Madam,
In consideration of Assam Power Distribution Company Ltd., (herein after referred to as the ‗Owner‘ which expression
shall unless repugnant to the context or meaning thereof include its successors, administrators and assigns) having
awarded to M/s…………………………………….with registered/ Head office at ……………….( hereinafter referred to
as ― Contractor‖ which expression shall unless repugnant to the context or meaning thereof include its successors,
administrators, executors and assigns), a Contract by issued of Owner‘s Letter of Award No……………
dated……………….. and the same having been acknowledged by the contractor, resulting in a contract bearing
No…………….. dated contractor having agreed to provide a Contract Performance Guarantee for the faithful
performance of the entire Contract equivalent to……………… being(%) (percent *) of the said value Contract to the
Owner.
We………………………………………………………………………………………….. (Name & Address) having its Head
Office at …………………( hereinafter referred to as the ― Bank‖ , which expression shall, unless repugnant to the
context or meaning thereof, include its successors, administrators, executors and assigns) do hereby guarantee and
undertake to pay the owner, on demand any all monies payable by the contractor to be extent of …………………. As
aforesaid at any time up to ………………………..**( day/month/year) without any demur, reservation , contest ,
recourse or protest and / or without any reference to this contractor. Any such demand made by the owner on the
bank shall be conclusive and binding notwithstanding any difference between the Owner the Contractor or any dispute
pending before any Court, Tribunal, Arbitrator or any other authority. The bank undertakes not to revoke this
guarantee during its currency without previous consent of the owner and further agrees that the guarantee herein
contained shall continue to be enforceable till the owner discharges this guarantee.
The Owner shall have the fullest liberty without affecting in any way the liability of the Bank under the guarantee, from
time to time to extend the time for performance or the contract by the contractor. The owner shall have the fullest
liberty, without affecting this guarantee, to postpone from time to time the exercise of any power vested in them or of
any right which they might have against the contractor, and to exercise the same at any time in any matter, and either
to enforce or to for bear to enforce any covenants, contained or implied, in the contract between the owner and the
contractor or any other course or remedy or security available to the owner. The Bank shall not be released to its
obligations under these presents by any exercise by the owner of its liberty with reference to the matters aforesaid or
any of them or by reason of any other act of omission or commission on the part of the owner or any other
indulgences shown by the owner or by any other matter or thing whatsoever which under law would, but for this
provision have the effect of relieving the Bank.
The bank also agrees that the owner at its option shall be entitled to enforce this guarantee against the Bank as a
principal debtor, in the first instance without proceeding against the contractor and not withstanding any security or
other guarantee the owner may have in relation to the Contractor‘s liabilities.
Notwithstanding anything contained herein above our liability under this guarantee is restricted to …………………….
And it shall remain in force up to an including …………………….. and shall be extended from time to time for such
period( not exceeding 1 year) as may be desired M/s………………………………………………………….on whose
behalf this guarantee has been given.
Dated this……………………. Day of ……………………….. 20……………… at…………
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 32 of 123
WITNESS
…………………………….
(Signature)
………………………
(Signature)
……………………………
(Name)
……………………..
( Name)
…………………………..
(Official address)
……………………..
(Official address)
Attorney as per power
Of Attorney No…………..
Date……………………..
Notes
* This sum shall be 2.5%( two & half) of the Contract price.
** The date will be 90(Ninety) days after the end of the Warranty Period as specified in the contract.
1. The stamp paper of appropriate value shall be purchased in the name of issuing bank.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 33 of 123
PROFORMA OF EXTENSION OF BANK GUARANTEE
Ref…………………………..
Date…………………….
To
The Chief General Manager (D)
Assam Power Distribution Company Ltd (LAR)
BijuleeBhawan, Paltanbazar
Guwahati-1
Dear Sir/ Madam,
Sub:
Extension of Bank Guarantee No……………….. forRs…………………. Favouring yourselves, expiring on
…………………. On account of M/S………………………….. in respect of contract no……………………. dated
…………….. (Hereinafter called original Bank Guarantee).
At the request of M/s ……………………… we …………………… bank, branch office at ………………….. and having
its Head Office at ………………………. Do hereby extend our liability under the above mentioned Bank Guarantee
No…………………dated………………………for a further period of ……………………… (Years/ Months)
from………………….. to expire on………………….. expect as provided above, all other terms and conditions of the
original Bank Guarantee No………………………. dated ………………. Shall remain unaltered and binding .
Please treat this as an integral part of the original Bank Guarantee to which it would be attached.
Yours faithfully
For………………………………
Manager/ Agent/Accountant …………………..
Power of attorney No……………………
Dated……………………………………
SEAL OF BANK
Note: The non-judicial stamp paper of appropriate value shall be purchased in the name of the Bank who has issued
the Bank Guarantee.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 34 of 123
PROFORMA OF BANK GUARANTEE FOR ADVANCEPAYMENT
( To be stamped in accordance with Stamp Act )
Ref…………………………..
Bank guarantee No……………………
Date…………………….
To
The Chief General Manager (D)
Assam Power Distribution Company Ltd (LAR)
BijuleeBhawan, Paltanbazar
Guwahati-1
Dear Sir/Madam,
In consideration of Assam Power Distribution Company Ltd.(hereinafter referred to as the ‗Owner‘, which
expressions shall unless repugnant to the context or meaning thereof include its successors, administrators and
assigns) having awarded to M/s…………………………… hereinafter referred to as the ‗Contractor‘ which expression
shall unless repugnant to the context or meaning thereof , include its successors, administrators, executors and
assigns), a Contract by issue of Owner‘s letter of Award No…………………… Dated……………………and the same
having been acknowledged by the contractors, resulting in a Contract bearing no………………….
Dated………………….
Valued
(at………………………………(
in
words
and
figures).
For
………………………….Contract (space of work)………………………………….. (hereinafter called the ‗Contract‘) and
the Owner having agreed to make an advance payment to the Contractor for performance of the above contract
amounting ……………………………… (in words and figures) as an advance against Bank Guarantee to be furnished
by the Contractor.
We…………………………..( Name of the Bank) having its Head Office at……………………………… ( hereinafter
referred to as the ‗Bank‘, which expression shall, unless repugnant to the context or meaning thereof , include its
successors, administrators, executors and assigns) do hereby guarantee and undertake to pay the owner ,
immediately on demand any or, all monies payable by the contractor to the extent of ………………..as aforesaid at
any time upto…………………….. (a….) without any demur, reservation, contest, recourse or protest and/or without
any reference to the contractor. Any such demand made by the Owner on the Bank shall be conclusive and binding
notwithstanding any difference between the Owner and the Contractor or any dispute pending before any Court,
Tribunal , Arbitrator or any other authority. We agree that the guarantee herein contained shall be irrevocable and
shall continue to be enforceable till the owner discharges this guarantee.
The Owner shall have the fullest liberty without affecting in any way the liability of the Bank under this guarantee, from
time to time to vary the advance or to extent the time for performance of the contract by the Contractor. The Owners
shall have the fullest liberty without affecting this guarantee, to postpone from time to time the exercise of any power
vested in them or of any right which they might have against the Contractor and to exercise the same at any time in
any manner, and either to enforce any covenants, contained or implied, in the contact between the Owner and the
Contractor or any other course or remedy or security available to the Owner. The Bank shall not be released of its
obligations under this presents by any exercise by the owner of its liberty with reference to the matter aforesaid of any
of them or by reason of any other act or forbearance or other acts of omission or commission on the part of the owner
or any other indulgence shown by the owner or by any other matter or thing whatsoever which under law would be for
this provision have the effect of relieving the Bank.
The Bank also agrees that the Owner at its option shall be entitled to enforce this guarantee against the Bank as a
principal debtor, in the first instance without proceeding against the contractor and not withstanding any security or
other guarantee that the owner may have in relation to the contractors liabilities.
Notwithstanding anything hereinabove our liability under this guarantee is limited to………… and it shall remain in
force upto an including ……………………….( @ and shall be extended from time to time for such period ( not
exceeding 1 year as may be desired by M/s…………………………………………………………………...dated this
………. Day of ……………….. 20……. At……………………………..
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 35 of 123
WITNESS……………………………………..
………………
(Signature)
…………………………….
(Name)
……………….
(Signature)
………………………………
(Name)
…………………………..….
(Designation)
(Official Address) (With Bank Stamp)
Attorney as per Power of attorney No……………………….…. Dated………………….
Strike whichever is not applicable
@ The date will be 90(ninety) days after the date of completion of the Contract.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 36 of 123
PROFORMA OF “AGREEMENT”
(To be executed on non-Judicial stamp paper)
This Agreement made this …………….. day of ………… two thousand……………. Between Assam Power Distribution
Company Ltd. having its head office at BijuleeBhawan, Paltanbazar, Guwahati-1 (hereinafter referred to as ‗Owner‘ or
‗‘, which expression shall include its administrators, successors and assign on one part and (hereinafter referred to as
the ‗Contractors ‗X‘ ( Name of the contracting Co.) which expression shall include its administrators, successors,
executors and permitted assigns) on the other part.
WHEREAS desirous of …………………….. in ……………. Circle associated with at ……………….(District) invited
Bids for…………………………………………….. ………………………………. (Briefly describe scope of works) for the
first state of the project as per its Bid Specification No………………………………
AND WHEREAS……………………….‖X‖ ………………………. Had participated in the above referred Bidding vide
their proposal No……………………. dated………………. And awarded the Contract to……………..‖ X‖…………….. on
terms
and
conditions
documents
referred
to
therein
which
have
been
acknowledged
by……………….‖X‖…………………..resulting into a ―Contract‖
NOW THEREFORE THIS DEED WITNESS AS UNDER:1.0 Article
1.1 Award of Contract
Awarded the contract to……………..‖X‖……………… for the work of …………… on the terms and conditions
contained in its letter of Award No…….. ………. Dated…………… and the documents referred to therein. The
award has taken effect from aforesaid letter of award. The terms and expression used in this agreement shall
have the same meaning as are assigned to them in the ‗Contract Documents‘ referred to in this succeeding
Article.
2.0 Documentation
2.1 The contract shall be performed strictly as per the terms and condition stipulated herein and in the following
documents attached herewith( hereinafter referred to as ―Contract Documents‖.)
i. Section 1-11 of the Bidding Document.
ii. Proposal Sheets, Data Sheets, Drawing work schedule submitted by ―X‖.
Letter of Award No………….. dated……………….duly acknowledged by ―X‖.
Quality Plans for manufacturing and field activities entitled as Quality Plan.
All the aforesaid Contract Documents shall form an integral part of this agreement , in so far as the same or any part
conform to the bidding documents and what has been specifically agreed to by the Owner in its letter of Award. Any
matter inconsistent therewith, contrary or repugnant thereto or any deviations taken by the Contractor in its ‗Proposal‘
but not agreed to specially by the Owner in its Letter of Award shall be deemed to have been withdrawn b y the
Contractor. For the sake of brevity, this agreement along with its aforesaid Contract Documents shall be referred to as
the ‗Agreement‘.
3.0 Conditions & Covenants
3.1 The scope of Contract, Consideration, Terms of Payment, Price Adjustments, Taxes wherever applicable,
Insurance, Liquidated Damage, Performance Guarantees and all other terms and conditions are contained in ‘s
Letter of Award No………........... dated……………… read in conjunction with other aforesaid contract documents.
The contract shall be duly performed by the Contract Documents, but which are needed for successful, efficient,
safe and reliable operation of the equipment unless otherwise specifically excluded in the specification under
‗exclusion‘ or Letter of Award.
3.2 The scope of work shall also include supply and installation of all such items which are not specifically mentioned
in the contract Documents, but which are needed for successful, efficient, safe and reliable operation of the
equipment unless otherwise specifically excluded in the specifications under ‗exclusions‘ or ‗Letter of Award‘.
3.3 Time Schedule
3.3.1 Time is the essence of the Contract and schedules shall be strictly adhered to ―X‖ shall perform the work in
accordance with the agreed schedules.
3.4 Quality Plans
3.4.1 The Contractor is responsible for the proper execution of the Quality Plans mentioned in Section 4.8 of GTC.
The work beyond the customer‘s hold points will progress only with the owners consent. The Owner will also
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 37 of 123
undertake quality surveillance and quality audit of the Contractor‘s /Sub-contractor‘s works, systems and
procedures and quality control activities. The Contractor further agrees that any change in the Quality Plan will
be made only with the Owner‘s approval. The contractor shall also perform all quality control activities,
inspection and tests agreed with the Owner to demonstrate full compliance with the contract requirements.
3.4.2 The contractor also agrees to provide the Owner with the necessary facilities for carrying out inspection, quality
audit and quality surveillance of contractors and its Subcontractor‘s Quality Assurance Systems and
Manufacturing Activities.
These shall include but not limited to the following:
Relevant plant standards, drawing and procedures;
Detailed Quality Assurance System manuals for manufacturing activities.
Storage procedures and instructions weld, NDT, heat treatment prior to commencement of manufacture;
Complete set of log sheets ( blank) mentioned in the Quality Plans.
It is expressly agreed to by the contractor that the quality test and inspection by the owner shall not in any way
relief the contractor of its responsibilities for quality standards and performance guarantee and their other
obligations under the Agreement. 3.4.4 ―X‘ agrees to submit quality Assurance Documents to for review and
record after completion and within 3 weeks of dispatch of material.
The package will include the following:
Factory test result, inspection report for testing required by this contract or applicable codes and standards.
Two copies of inspection reports duly signed by Quality Assurance personnel of both APDCL and ―X‖ for the
agreed customer hold points.
Report of the rectification works where and if applicable.
3.5 It is expressly agreed to by the Contractor that notwithstanding the fact that the Contract is termed as Supply-cumErection Contract or indicates the break-up of the Contract consideration, for convenience of operation and for
payment of sale tax on supply portion, it is in fact one composite Contract on single source responsibility basis
and the Contractor is bound to perform the total Contract in its entirely and non-performance of any part or portion
of the Contract shall be deemed to be breach of the entire Contract.
3.6 The Contractor guarantees that the equipment package under the Contract shall meet the ratings and
performance parameters as stipulated in the technical specifications (Section10) and in the event of any
deficiencies found in the requisite performance figures, the Owner may at its option reject the equipment package
or alternatively accept it on the terms and conditions and subject to levy of the liquidated damages in terms of
Contract documents. The amount of liquidated damages so leviable shall be in accordance with the contract
document and without any limitation.
3.7 It is further agreed by the contractor that the contract performance guarantee shall in no way be constructed to
limit or restrict the owner‘s equipment right to recover the damages/compensation due to shortfall in the
equipment performance figures as stated in Para 3.6 above or under any other clause of the agreement. The
amount of damages/compensation shall be recoverable either by way of deduction from the contract price,
contract performance guarantee and or otherwise. The contract performance guarantee furnished by the
contractor is irrevocable and unconditional and the owner shall have the power to invoke it notwithstanding any
dispute or difference between the owner and the contractor pending before any court tribunal, arbitrator or any
other authority.
3.8 This Agreement constitutes full and complete understanding between the parties and terms of the payment. It shall
supersede all prior correspondence terms and conditions contained in the Agreement. Any modification of the
agreement shall be effected only by a written instrument signed by the authorized representative of both the
parties.
4.0 SETTLEMENT OF DISPUTES:
4.1 It is specifically agreed between parties that all the differences or disputes arising out of the agreement or touching
the subject matter of the agreement shall be decided by process of settlement and Arbitration as specified in
clause 41 of the General Condition of the Contract and provision of the Indian Arbitration Act, 1996 shall apply.
Guwahati Courts alone shall have exclusive jurisdiction over the same.
4.2 NOTICE OF DEFAULT
Notice of default given by either party to the other under agreement shall be in writing and shall be deemed to
have been duly and properly served upon the parties hereto if delivered against acknowledgement or by telex or
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 38 of 123
by registered mail with acknowledgements due addressed to the signatories at the addresses mentioned at
Guwahati.
IN WITNESS WHEROF, the parties through their duly authorized representatives have executed these presents
(execution where of has been approved by the competent authorities of both the parties) on the day, month and year
first above mentioned at Guwahati .
WITNESS:
1. ………………………..
2. ………………………
3. ……………………..
4. ……………………..
(Owner‘s signature) ( Printed Name)
(Designation)( Company‘s Stamp)
(Contractor‘s Signature)(Company‘s Name)
(Designation)(Company‘s Stamp)
Applicable in case of single award is placed on one party on Supply-cum- Erection basis. In two separate
awards are placed on single party/two different parties this clause is to be modified suitably while signing the
contract agreement to be signed separately for two awards to incorporate cross fall breach clause.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 39 of 123
FORM OF POWER OF ATTORNEY FOR JOINT VENTURE
(On Non-judicial Stamp Paper of Appropriate value to be Purchased in the
Name of Joint Venture)
KNOW ALL MEN BY THESE PRESENTS THAT WE, the Partners whose details are given
hereunder……................................................................. have formed a Joint Venture under the laws
of……………………..and
having
our
Registered
Office(s)/Head
Office(s)
………………………………………………………………………………………………………….....(herein
at
after
called the 'Joint Venture' which expression shall unless repugnant to the context or meaning thereof,
include
its
successors,
administrators
and
assigns)
acting
thorough
M/S………………
………………………………………………………………………….. being the Partner in-charge do hereby'
constitute,
nominate
and
appoint
M/S……………………………………
………………………………..a
Company incorporated under the laws of arid having its Registered/Head Office at..as our duly 'constituted
lawful Attorney (hereinafter called "Attorney" or" Authorized Representative" or "Partner In-charge") to
exercise all or any of the powers for and on be.ha1f of, the Joint Venture in regard* to --------------------(Name of the Package) (Specification No.-------------------------) of Assam Power Distribution Company Ltd.
Bijulee Bhawan, Paltan Bazar, GUWAHATI (hereinafter called the "Owner"). and the bids for which' have
been invited by the Owner, to undertake the following acts:
i)
To submit proposal and participate in the aforesaid Bid Specification of the Owner on behalf of the
―Joint Venture‖.
ii) To negotiate with the Owner 'the terms and' conditions for award of the Contract pursuant to the
aforesaid Bid and to sign the Contract with the Owner for and on behalf of the "Joint Venture'.
iii) To do any other act or submit any document rated to the above.
iv) To receive, accept and execute .the Contract for and on behalf of the "Joint Venture".
It is clearly understood that the Partner In-charge (Lead Partner) shall ensure performance of the Contract(s)
and if one or more Partner fail to perform their respective portion of the Contract(s), the same shall be
deemed to be a default by all the Partners.
It is expressly understood that this Power of Attorney shall remain valid binding and irrevocable till completion
of the Defect Liability Period in terms of the Contract.
The Joint Venture hereby agrees and undertakes to ratify and confirm all the above whatsoever the said
Attorney/ Authorized Representative/Partner In-charge quotes in the bid, negotiates and signs the Contract
with the Owner and/or proposes to act on behalf of the joint Venture by virtue of this Power of Attorney and
the same shall bind the Joint Venture as if done by itself.
* Strike which is not applicable.
IN WITNESS THEREOF the Partners Constituting the Joint Venture as aforesaid have executed
these presents on this …………….. day of ……………....... under the Common Seal(s) of their
Companies.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 40 of 123
for and on behalf of
the Partners of Joint
Ventures
The Common Seal of the above Partners of the Joint Venture:
The Common Seal has been affixed there unto in the presence of :
WITNESS
1.
Signature _________________________
Name___________________________
Designation_______________________
Occupation ________________________
2.
Signature _________________________
Name___________________________
Designation_______________________
Occupation ________________________
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 41 of 123
SECTION: 6
TECHNICAL SPECIFICATION
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 42 of 123
1. TECHNICAL SPECIFICATION FOR STEEL TUBULAR POLES
SCOPE:
1.1 This specification covers the general requirements towards design, manufacture, testing at manufacturers works, supply and
delivery for tubular steel poles of circular cross section ( swaged type ) for overhead lines.
1.0 STANDARD :
1.1. The tubular steel poles shall conform to the latest edition of Indian Standard specification
IS: 2713 ( Part – I, III ) : 1980 Specification for Steel Tubular poles
The Steel Tubular Poles conforming to other internationally accepted, which ensure equal or higher quality than
the standards, mentioned above also be acceptable. In case the bidder who wish to offer material conforming to the
other standards, salient points of difference between adopted and specific standards with authentic English Translation
shall be furnished.
2.0 Topography and Climatic Condition :
2.1. The materials offered, shall be suitable for operation in tropical climate and will be subjected to the sun and inclement
weather and shall be able to withstand wide range of temperature variation. For the purpose of design, average
atmospheric temperature may be considered to be 50 °C with humidity nearing saturation.
3.0 Materials :
3.1. The materials used in construction of tubular steel poles shall be of the tested quality of steels of minimum tensile
strength 540 MPa( : 55 Kgf/mm2 ). Or 410MPa as the case may be.
3.2. The materials, when analysed in accordance with IS : 228 ( Part-III : 1972 ) and
IS : 228 ( Part-IX) shall not show sulpher and phosphorous contents of more than 0.060
percent each.
4.0 Types, Size and construction :
4.1. Tubular Steel Poles shall be swaged type.
4.2. Swaged poles shall be made of seamless or welded tubes of suitable lengths swaged and jointed together. No
circumferential joints shall be permitted in the individual tube lengths of the poles. If welded tubes are used they shall
have one longitudinal weld seam only : and thelongitudinal welds shall be staggered at each swaged joint.
4.3. Swaging may be done by any mechanical process. The upper edge of each joint shall be chamfered if at an angle of
about 45o. The upper edge need not be chamfered if a circumferential weld is to be deposited in accordance with clause
No. 5.3 2 of IS: 2713 (Part-I):1980.
4.4. The length of joints on swaged poles shall be in accordance with clause No. 5.4 of IS: 2713(Par-I): 1980.
4.5. Poles shall be well-finished, clean and free from harmful surface defects. Ends of the poles shall be cut square. Poles
shall be straight, smooth and cylindrical. The weld joints, if any, shall be of good quality, free from scale, surface defects,
cracks, etc.
4.6. Tolerances for outside diameter, thickness, length, weight and straightness shall be in accordance with IS: 2713 (Part-I) :
1980.
4.7. The poles shall be coated with black bituminous paint conforming to IS : 158-1968 throughout, internally and externally,
upto the level which goes inside the earth. The remaining portion of the exterior shall be painted with one coat of red
oxide primer as specified in IS: 2074-1979 or equivalent international specifications.
5.0 Earthing Arrangements :
5.1. For earthing arrangement a through hole of 14mm diameter shall be provided in each pole at a height of 300mm above
the planting depth.
6.0 PRINCIPAL PARAMETERS
Sl.
No
ITEM DESCRIPTION
PARAMETERS
PARAMETER
PARAMETERS
1.
Type of Pole
SP-76
SP-66
SP-60
2.
Overall Length
14.5 M
12.0 M
12.0 M
3.
Planting Depth
2.0 M
2.0 M
2.0 M
0.60 M
0.60 M
0.60 M
Load Applied from top at a
4.
distance of
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 43 of 123
5.
Height above ground
6.
Length of sections
12.5 M
10.0 M
10.0 M
a.
a Bottom
6.5 M
5.80 M
5.80 M
b.
Middle
4.0 M
3.10 M
3.10 M
c.
Top
4.0 M
3.10 M
3.10 M
7.
Outside Diameter
&thickness of section
a
Bottom, MM
219.1 x5.90
219.1 x5.90
165.1 x 5.40
b
Middle ,MM
193.7 x4.85
193.7 x4.85
139.7 x 4.50
c
Top,MM
165.1 x 4.5
165.1 x 4.5
114.3 x 3.65
8.
Approx. Wt of pole
380 KG
322 KG
208 KG
9.
crippling load
514 kgf
650 kgf
333 kgf
10.
breaking load
724 kgf
916 kgf
469 kgf
11.
Ultimate tensile strength
410 MPa ( 42 KGf / mm2 )
410 MPa ( 42 KGf
/ mm2 )
410 MPa ( 42 KGf
/ mm2 )
A Mild Steel base plate of
size 400 mm x 400 mm x 8
mm shall be welded at the
bottom of the pole.
A Mild Steel
base plate of size
400×400×8 mm
shall be welded at
the bottom of the
pole.
A Mild Steel base
plate of size
400×400×8 mm
shall be welded
at the bottom of
the pole.
The inner side & outer
underground portion of the
pole is to be painted with
black
bituminous
paint
conforming to IS : 158-1968
throughout,[ internally and
externally, up to the level
which goes inside the earth].
The balance outer portion of
the pole 9 12.5m) is to be
painted with 2 coat of metal
primer and 2 coats of
aluminium paint.
The inner side &
outer underground
portion of the pole
is to be painted
with
black
bituminous paint
conforming to IS :
158-1968
throughout,[
internally
and
externally, up to
the level which
goes inside the
earth].
The
balance
outer
portion of the pole
9 12.5m) is to be
painted with 2
coat of metal
primer and 2 coats
of
aluminium
paint.
The inner side &
outer underground
portion of the pole
is to be painted
with
black
bituminous paint
conforming to IS :
158-1968
throughout,[
internally
and
externally, up to
the level which
goes inside the
earth].
The
balance
outer
portion of the pole
9 12.5m) is to be
painted with 2
coat of metal
primer and 2 coats
of
aluminium
paint.
12.
Base Plate
13. Painting
7.0 Tests and Test Certificates :
7.1. The following tests shall be conducted on finished poles :
A. Tensile test and chemical analysis for Sulphur and phosphorous,
B. Deflocation test,
C. Permanent set test, and
D. Drop test.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 44 of 123
7.2. In addition to above verification of dimensions as per IS : 2713 (Part-III) : 1980 shall be carried out during acceptance of
lots.
7.3. Number of poles selected for conducting different tests shall be in accordance to clause No.10.1.1 and No. 10.1.12: of IS:
2713 (Part-I) 1980.
7.4. Tests shall be carried out before supply of each consignment at the manufacturers woks and test certificates should be
submitted to the purchaser for approval prior to delivery.
7.5. Re-tests, if any, shall be made in accordance with IS: 2713 (Part-I) 1980.
7.6. Purchaser reserves the right to inspect during manufacturing and depute his representative to inspect/test at the works.
7.7. If any extra cost is required for carrying out the above specified tests, the same shall be borne by the tenderer.
8.0 Marking :
8.1. The poles shall be marked with designation, manufacturer‘s identification, year of manufacture and name of the
purchaser: APDCL
8.2. The poles may also be marked with the ISI certification mark if applicable.
9.0 Performance :9.1. The bidder shall furnish a list of the major supplies effected during the last 3 (three) years indicating the volume of supply
and actual delivery dates alongwith the bids.
9.2. Bids may not be considered if the past manufacturing experience is found to be less that 3 (three) years.
10.0Deviation :13.1Any deviation in technical specification shall be clearly indicated with sufficient reasons thereof. Purchaser shall however
reserve the right to accept and/or reject the same without assigning any reasons what-so-ever.
11.0Guaranteed technical particulars :
11.1. The tenderer shall furnish all necessary guaranteed technical particulars in the prescribed format enclosed hereinafter.
Annexure ‗B‘
TECHNICAL GUARANTEED AND OTHER PARTICULARS.
(To be filled in by the Bidder)
1. Type of Pole offered
2. a) Whether tubes are of seamless
constn. Or welded type.
b) Is it manually welded tubes? If so,
state name/address of manufacturer
c) It is ERW tubes? If so, state
name/address of manufacturer
3. Overall length
4. Effective length of section
a) Bottom
b) Middle
c) Top
5. Effective dia thickness of section
a) Bottom
b) Middle
c) Top
6. Approximate weight (Kg.)
7. Breaking Load (Kg.)
8. Working Load (Kg.)
9. Weight/Mtr.
i) Top Section (kg)
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 45 of 123
ii) Middle Section (kg)
iii) Bottom Section (kg)
10. Crippling load (kg)
11. Load for permanent set
12. Load for temporary deflection
13. Joint length
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 46 of 123
2.
2.1.0
2.1.1
TECHNICAL SPECIFICATION FOR 33 KV ISOLATORS
SCOPE
This section of the specification is intended to cover design specifications for manufacture and testing of 33 KV
gang operated switch (Isolators) with all fittings and accessories.
2.1.2The Isolators are for outdoor installation suitable for horizontal/vertical mounting on mounting structures and for use at su b-stations.
2.1.3Isolators shall be supplied with Earth Switch as and where specified.
2.2.0
GENERAL
2.2.1The Isolators and accessories shall conform in general to IS 9921 (or IEC: 62271-102) except to the extent explicitly modified in specification.
2.2.2All isolating switches and earthing switches shall have rotating blades and pressure releasing contacts. All isolating and earth switches shall
operate through 90 angle from closed position to fully open position.
2.2.3Complete isolator with all the necessary items for successful operation shall be supplied including but not limited to the following:
(i).
Isolator assembled with complete base frame, linkages, operating mechanism, control cabinet, interlocks etc.
(ii).
All necessary parts to provide a complete and operable isolator installation, control parts and other devices whether specifically
called for herein or not.
(iii).
The isolator shall be designed for use in the geographic and meteorological conditions as given in Section 1.
2.3.0
DUTY REQUIREMENTS
2.3.1
Isolators and earth switches shall be capable of withstanding the dynamic and thermal effects of the maximum possible short circuit
current of the systems in their closed position. They shall be constructed such that they do not open under influence of shor t circuit
current.
2.3.2The earth switches, wherever provided, shall be constructionally interlocked so that the earth switches can be operated only when the isolator
is open and vice versa. The constructional interlocks shall be built in construction of isolator and shall be in addition to the electrical and
mechanical interlocks provided in the operating mechanism.
2.3.3
In addition to the constructional interlock, isolator and earth switches shall have provision to prevent their electrical and manual operation
unless the associated and other interlocking conditions are met. All these interlocks shall be of failsafe type. Suitable individual
interlocking coil arrangements shall be provided. The interlocking coil shall be suitable for continuous operation from DC supply and within
a variation range as stipulated elsewhere in this specification.
2.3.4
2.3.5
The earthing switches shall be capable of discharging trapped charges of the associated lines.
The isolator shall be capable of making/breaking normal currents when no significant change in voltage occurs across the ter minals of
each pole of isolator on account of make/break operation.
2.3.6
The isolator shall be capable of making/breaking magnetising current of 0.7A at 0.15 power factor and capacitive current of 0 .7A at 0.15
power factor at rated voltage.
2.4.0
CONSTRUCTIONAL DETAILS
.All isolating switches and earthing switches shall have rotating blades and pressure releasing contacts. All isolating and earth switches
shall operate through 90 angle from closed position to fully open position.
2.4.1
Contacts:
a)
The contacts shall be self-aligning and self-cleaning and so designed that binding cannot occur after remaining closed for prolonged
periods of time in a heavily polluted atmosphere.
b)
No undue wear or scuffing shall be evident during the mechanical endurance tests. Contacts and spring shall be designed so that
readjustments in contact pressure shall not be necessary throughout the life of the isolator or earthing switch. Each contact or pair
of contacts shall be independently sprung so that full pressure is maintained on all contacts at all time.
c)
Contact springs shall not carry any current and shall not lose their characteristics due to heating effects.
d)
The moving contact of double break isolator shall have turn-and -twist type or other suitable type of locking arrangement to ensure
adequate contact pressure.
2.4.2
Blades:
a)
All metal parts shall be of non-rusting and non-corroding material. All current carrying parts shall be made from high conductivity
electrolytic copper/aluminium. Bolts, screws and pins shall be provided with lock washers. Keys or equivalent locking facilities if
provided on current carrying parts, shall be made of copper silicon alloy or stainless steel or equivalent. The bolts or pins used in
current carrying parts shall be made of non-corroding material. All ferrous castings except current carrying parts shall be made of
malleable cast iron or cast-steel. No grey iron shall be used in the manufacture of any part of the isolator.
b)
The live parts shall be designed to eliminate sharp joints, edges and other corona producing surfaces, where this is impracticable
adequate corona shield shall be provided..
c)
Isolators and earthing switches including their operating parts shall be such that they cannot be dislodged from their open or closed
positions by short circuit forces, gravity, wind pressure, vibrations, shocks, or accidental touching of the connecting rods of the
operating mechanism.
d)
The switch shall be designed such that no lubrication of any part is required except at very infr equent intervals i.e. after every 1000
operations or after 5 years whichever is earlier.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 47 of 123
2.4.3
Insulators:
a)
The insulator shall conform to IS: 2544 and/or IEC-60168. The insulators shall have a minimum cantilever strength of 400 Kgs. for
33 kV insulators respectively.
b)
2.4.4
Pressure due to the contact shall not be transferred to the insulators after the main blades are fully closed.
Base:
Each isolator shall be provided with a complete galvanised steel base provided with holes and desi gned for mounting on a supporting
structure.
2.5.0
EARTHING SWITCHES
2.5.1
Where earthing switches are specified these shall include the complete operating mechanism and auxiliary contacts.
2.5.2
The earthing switches shall form an integral part of the isolator and shall be mounted on the base frame of the isolator.
2.5.3
The earthing switches shall be construction ally interlocked with the isolator so that the earthing switches can be operated only when the
isolator is open and vice versa. The constructional interlocks shall be built in construction of isolator and shall be in addition to the
electrical interlocks.
Suitable mechanical arrangement shall be provided for de-linking electrical drive for mechanical operation.
2.5.4
Each earth switch shall be provided with flexible copper/aluminum braids for connection to earth terminal. These braids shall have the
same short time current carrying capacity as the earth blade. The transfer of fault current through swivel connection will not be accepted.
2.5.5
The frame of each isolator and earthing switches shall be provided with two reliable earth terminals for connection to the earth mat.
2.5.6
Isolator design shall be such as to permit addition of earth switches at a future date. It should be possible to interchange position of earth
switch to either side.
2.5.6The earth switch should be able to carry the same fault current as the main blades of the Isolators and shall withstand dynam ic
stresses.
2.6.0
OPERATING MECHANISM
2.6.1
The bidder shall offer manual operated Isolators and earth switches..
2.6.2
Control cabinet/operating mechanism box shall be made of aluminum sheet of adequate thickness (minimum 3 mm).
2.6.3
Gear should be of forged material suitably chosen to avoid bending/jamming on operation after a prolonged per iod of non-operation. Also
all gear and connected material should be so chosen/surface treated to avoid rusting.
2.7.0
OPERATION
2.7.1
The main Isolator and earth switches shall be gang operated.
2.7.2
The design shall be such as to provide maximum reliability under all service conditions. All operating linkages carrying mechanical loads
shall be designed for negligible deflection. The length of inter insulator and interpole operating rods shall be capable of adjustments, by
means of screw thread which can be locked with a lock nut after an adjustment has been made. The isolator and earth switches shall be
provided with ―over center‖ device in the operating mechanism to prevent accidental opening by wind, vibration, short circuit forces or
movement of the support structures.
2.7.3
Each isolator and earth switch shall be provided with a manual operating handle enabling one man to open or close the isolator with ease
in one movement while standing at ground level. Detachable type manual operating handle shall be provided. Suitable provision shall be
made inside the operating mechanism box for parking the detached handles. The provision of manual operation shall be located at a
height of 1000 mm from the base of isolator support structure.
2.7.4
The isolator shall be provided with positive continuous control throughout the entire cycle of operation. The operating pipes and rods shall
be sufficiently rigid to maintain positive control under the most adverse conditions and when operated in tension or compress ion for
isolator closing. They shall also be capable of withstanding all torsional and bending stresses due to operation of the isolator. Wherever
supported the operating rods shall be provided with bearings on either ends. The operating rods/ pipes shall be provided with suitable
universal couplings to account for any angular misalignment.
2.7.5
All rotating parts shall be provided with grease packed roller or ball bearings in sealed housings designed to prevent the ingress of
moisture, dirt or other foreign matter. Bearings pressure shall be kept low to ensure long life and ease of operation. Locking pins wherever
used shall be rustproof.
2.7.6
Signaling of closed position shall not take place unless it is certain that the movable contacts, have reached a position in which rated
normal current, peak withstand current and short time withstand current can be carried safely. Signaling of open position shall not take
place unless movable contacts have reached a position such that clearance between contacts is atleast 80% of the isolating distance.
2.7.7
The position of movable contact system (main blades) of each of the Isolators and earthing switches shall be indicated by a m echanical
indicator at the lower end of the vertical rod of shaft for the Isolators and earthing switch. The indicator shall be of metal and shall be
visible from operating level.
2.7.8
The contractor shall furnish the following details along with quality norms, during detailed engineering stage.
(i)
Current transfer arrangement from main blades of isolator along with millivolt drop immediately across transfer point.
(ii)
Details to demonstrate smooth transfer of rotary motion from motor shaft to the insulator along with stoppers to prevent over travel.
2.8.0
TEST AND INSPECTION
2.8.1
The switches shall be subjected to the following type test in accordance to with IS: 9920 or equivalent international specifications.
I)
Dielectric test (impulse and one minute) power frequency withstands voltage.
II)
Temperature rise test
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 48 of 123
2.8.2
2.8.3
III)
Rated off load breaking current capacity
IV)
Rated active load breaking capacity
V)
Rated line charging breaking capacity
VI)
Rated short time current
VII)
Rated peak withstand current
VIII)
Mechanical and Electrical Endurance
The equipment shall be subjected to the following routine test.
I)
Power frequency voltage dry test
II)
Measurement of resistance of the main circuit
III)
Operating test.
The porcelain will have pull out test for embedded component and beam strength of porcelain base.
2.9.0
CONNECTORS
2.9.1
Each isolator shall be provided with appropriate number of bimetallic clamping type connectors as detailed in the schedule of requirement.
The maximum length of jumper that may be safely connected or any special instruction considered necessary to avoid under load s on the
post isolators should be stated by the tenderer.
2.10.0 SUPPORTING STRUCTURES
2.10.1
All isolators and earthing switches shall be rigidly mounted in an upright position on their own supporting structures. Details of the
supporting structures shall be furnished by the successful tenderer. The isolators should have requ isite fixing details ready for mounting
them on switch structures.
2.11.0 PRE-COMMISSIONING TESTS
2.11.1Contractor shall carry out following tests as pre-commissioning tests. Contractor shall also perform any additional test based on specialties of
the items as per the field instructions of the equipment Supplier or Employer without any extra cost to the Employer. The Contractor shall
arrange all instruments required for conducting these tests along with calibration certificates and shall furnish the list of instruments to the
Employer for approval.
2.12.0
SL
No.
(a)
Insulation resistance of each pole.
(b)
Manual operation and interlocks.
(c)
Insulation resistance of control circuits and motors.
(d)
Ground connections.
(e)
Contact resistance.
(f)
Proper alignment so as to minimise to the extreme possible the vibration during operation.
(g)
Measurement of operating Torque for isolator and Earth switch.
(h)
Resistance of operating and interlocks coils.
(i)
Functional check of the control schematic and electrical & mechanical interlocks.
(j)
50 operations test on isolator and earth switch.
TECHNICAL DATA SHEET FOR ISOLATORS
Technical Particulars
33 kV
1
2
3
4.
Nominal system voltage, kV
Highest system voltage, kV
Rated frequency, Hz.
Type of Isolator
33
36
50
5
6
7
Rated continuous current, A
Rated short time current, kA for 3sec
Rated duration of short time current,
Second
Rated lightning impulse withstand
voltage, kV (peak)
i) To earth & between poles
ii) Across isolating distance
800 A
25
3
8
9
Isolators class
Rated 1 minute power
withstand voltage, kV (rms)
i) To earth & between poles
Double
center
rotating
Break,
pole
170
170
frequency
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 49 of 123
SL
No.
Technical Particulars
Isolators class
33 kV
ii) Across isolating distance
10
11
Minimum
creepage
insulators, mm
Temperature rise
distance
70
80
of
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
900
As per relevant IS
Page 50 of 123
3. TECHNICAL SPECIFICATION FOR 33kV ARRESTORS
3.0.0
3.1.1
3.1.0
3.2.1
3.2.0
3.3.1
3.3.2
3.3.3
3.3.4
3.3.5
3.3.6
3.3.7
3.3.8
3.3.9
3.3.10
3.3.0
3.4.1
3.4.2
3.4.3
3.4.4
3.4.0
3.5.1
3.5.2
3.5.0
3.6.1
SCOPE
This Section covers the specifications for design, manufacture, shop & laboratory testing before despatch of 33
kV 10 kA, Station class heavy duty, gapless metal (zinc) oxide Surge Arrestors complete with fittings &
accessories.
STANDARDS
The design, manufacture and performance of Surge Arrestors shall comply with IS: 3070( Part-3 )/1993 unless
otherwise specifically specified in this Specification
GENERAL REQUIREMENT
The surge arrestor shall draw negligible current at operating voltage and at the same time offer least resistance
during the flow of surge current.
The surge arrestor shall consist of non-linear resistor elements placed in series and housed in electrical grade
porcelain housing/silicon polymeric of specified creepage distance.
The assembly shall be hermetically sealed with suitable rubber gaskets with effective sealing system
arrangement to prevent ingress of moisture.
The surge arrestor shall be provided with line and earth terminals of suitable size. The ground side terminal of
surge arrestor shall be connected with 25x6 mm galvanized strip, one end connected to the surge arrestor and
second end to a separate ground electrode. The bidder shall also recommend the procedure which shall be
followed in providing the earthing/system to the Surge Arrestor.
The surge arrestor shall not operate under power frequency and temporary over voltage conditions but under
surge conditions, the surge arrestor shall change over to the conducting mode.
The surge arrestor shall be suitable for circuit breaker performing 0-0.3sec.-CO-3min-CO- duty in the system.
Surge arrestors shall have a suitable pressure relief system to avoid damage to the porcelain/ silicon polymeric
housing and providing path for flow of rated fault currents in the event of arrestor failure.
The reference current of the arrestor shall be high enough to eliminate the influence of grading and stray
capacitance on the measured reference voltage.
The Surge Arrestor shall be thermally stable and the bidder shall furnish a copy of thermal stability test with the
bid.
The arrestor shall be capable of handling terminal energy for high surges, external pollution and transient over
voltage and have low losses at operating voltages.
ARRESTOR HOUSING
The arrestor housing shall be made up of silicon polymeric housing and shall be homogenous, free from
laminations, cavities and other flaws of imperfections that might affect the mechanical and dielectric quality.
The housing shall be of uniform brown colour, free from blisters, burrs and other similar defects.
Arrestors shall be complete with insulating bases, surge counters with leakage current meters (33 KV LA) and
terminal connectors.
The housing shall be so coordinated that external flashover shall not occur due to application of any
impulse or switching surge voltage up to the maximum design value for arrestor. The arrestors shall not fail
due to contamination. The arrester housings shall be designed for pressure relief class as given in Technical
Parameters of the specification.
Sealed housings shall exhibit no measurable leakage.
FITTINGS & ACCESSORIES
The surge arrestor shall be complete with insulating bases, surge counters with leakage current meters (for 33
KV LA) and terminal connectors.
The terminals shall be non-magnetic, corrosion proof, robust and of adequate size and shall be so located that
incoming and outgoing connections are made with minimum possible bends. The top metal cap and base of
surge arrestor shall be galvanized. The line terminal shall have a built in clamping device which can be
adjusted for both horizontal and vertical takeoff.
SURGE MONITOR
A self-contained discharge counter suitably enclosed for outdoor use and requiring no auxiliary or battery
supply for operation shall be provided for each single pole unit. Leakage current meter with suitable scale
range to measure leakage current of surge arrestor shall also be supplied within the same enclosure. The
number of operations performed by the arrestor shall be recorded by a suitable cyclometric counter and surge
monitor shall be provided with an inspection window. There shall be a provision for putting ammeter to record
the current/alarm contacts in the control room if the leakage current exceeds the permitted value. Similar
provision shall be considered for surge counter also.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 51 of 123
3.6.2
Surge monitor shall be mounted on the support structure at a suitable height so that the reading can be taken
from ground level through the inspection window and length of connecting leads up to grounding point and
bends are minimum.
3.6.3
Surge monitor shall have to be provided for 33 KV class only.
3.6.0
TESTS
3.7.1Test on Surge Arrestors
The Surge Arrestors offered shall be type tested and shall be subjected to routine and acceptance tests in
accordance with IS: 3070 (Part-3) or equivalent international specifications. In addition, the suitability of the
Surge Arrestors shall also be established for the following:
- Residual voltage test
- Reference voltage test
- Leakage current at M.C.O.V
- P.D. test
- Sealing test
- Thermal stability test
- Aging and Energy capability test
- Watt loss test
Each metal oxide block shall be tested for guaranteed specific energy capability in addition to
routine/acceptance test as per IEC/IS.
3.7.2
The surge arrestor housing shall also be type tested and shall be subjected to routine and acceptance tests in
accordance with IS: 2071 or equivalent international specifications.
3.7.3
Galvanization Test
All Ferrous parts exposed to atmospheric condition shall have passed the type tests and be subjected to
routine and acceptance tests in accordance with IS: 2633 & IS 6745.
3.8.0
NAME PLATE
3.8.1
The name plate attached to the arrestor shall carry the following information:
Rated Voltage
Continuous Operation Voltage
Normal discharge current
Pressure relief rated current
Manufacturers Trade Mark
Name of Sub-station
Year of Manufacturer
Name of the manufacture
Purchase Order Number along with date
3.9.0
PRE-COMMISSIONING TESTS
3.9.1Contractor shall carry out following tests as pre-commissioning tests. Contractor shall also perform any additional
test based on specialties of the items as per the field instructions of the equipment Supplier or Employer
without any extra cost to the Employer. The Contractor shall arrange all instruments required for conducting
these tests along with calibration certificates and shall furnish the list of instruments to the Employer for
approval.
1.
Operation check of LA counters.
2.
Insulation resistance measurement.
3.
Capacitance and Tan delta measurement of individual stacks.
4.
Third harmonic resistive current measurement (to be conducted after energisation.
3.10.0 TYPE AND RATINGS
SL
No.
Particulars
Voltage
class
33 kV
1
2
3
Rated voltage of arrester, kV
Rated frequency, Hz
Nominal discharge current of arrester, kA
30
50
10
4
Maximum residual voltage at nominal discharge
current, kV (peak)
Maximum steep current impulse residual voltage at
kV (kVP)
One minute power frequency withstand voltage of
108
5
6
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
130
70
Page 52 of 123
arrester insulation, kV (rms)
7
9
1.2 / 50
second impulse withstand voltage of
arrester insulation, kV (peak)
Line discharge class
10
Insulator Housing
4
1.0
170
2
a)
Power frequency withstand test voltage (wet)
(kV rms)
70
b)
Lightning impulse withstand tests voltage(KVp)
170
c)
d)
Pressure Relief Class
Creepage distance not less than (mm)
40
900
TECHNICAL SPECIFICATION FOR GALVANIZED CHANNEL
SCOPE :
This specification covers the design, manufacture, testing at manufacturer's works, transport to site,
insurance, storage, erection and commissioning of Galvanized Cross Arm and Channel used for lines
and S/S complete with all accessories as specified.
2. Standards
The M.S Cross Arm and channel supplied under this specification shall conform to the latest issue of the relevant Indian
Standards IS – 226:1975, Regulations etc. except where specified otherwise.
The rolling and cutting tolerance for steel product conforming to IS: 266 shall be those specified in the IS: 18521973 with latest revision.
Galvanization conforming to latest version of 1S:2629 or equivalent international specifications
In the event of conforming to any standards other than the Indian Standards, the salient features of comparison
shall be clearly set out separately
3.0 GENERAL REQUIREMENT :
i. The cross arm shall be fabricated grade of mild steel of channel section as per requirement.
ii. All steel members and other parts of fabricated material as delivered shall be free of warps, local
deformation, unauthorized splices, or unauthorized bends.
iii. Bending of flat strap shall be carried out cold. Straightening shall be carried out by pressure and not by
hammering. Straightness is of particular importance if the alignment of bolt holes along a member is
referred to its edges.
iv. Holes and other provisions for field assembly shall be properly marked and cross referenced. Where
required, either by notations on the drawing or by the necessity of proper identification and fittings for field
assembly, the connection shall be match marked.
v. A tolerance of not more than 1mm shall be permitted in the distance between the center lines of bolt holes.
The holes may be either drilled or punched and, unless otherwise stated, shall be not more than 2mm
greater in diameter than the bolts.
vi. When assembling the components force may be used to bring the bolt holes together (provided neither
members nor holes are thereby distorted) but all force must be removed before the bolt is inserted.
Otherwise strain shall be deemed to be present and the structure may be rejected even though it may be,
in all other respects, in conformity with the specification.
vii. The back of the inner angle irons of lap joints shall be chamfered and the ends of the members cut where
necessary and such other measures taken as will ensure that all members can be bolted together without
strain or distortion. In particular, steps shall be taken to relieve stress in cold worked steel so as to prevent
the onset of embitterment during galvanizing.
viii. Similar parts shall be interchangeable.
ix. Shapes and plates shall be fabricated and assembled in the shop to the greatest extent practicable.
Shearing flame cutting and chipping shall be done carefully, neatly and accurately. Holes shall be cut,
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 53 of 123
x.
xi.
xii.
xiii.
xiv.
xv.
xvi.
xvii.
xviii.
drilled or punched at right angles to the surface and shall not be made or enlarged by burning. Holes shall
be clean-cut without torn or ragged edges, and burrs resulting from drilling or reaming operations shall be
removed with the proper tool.
Shapes and plates shall be fabricated to the tolerance that will permit fielderection within tolerance, except
as otherwise specified. All fabrication shall be carried out in a neat and workmanlike manner so as to
facilitate cleaning,
painting, galvanizing and inspection and to avoid areas in which water and other matter can lodge.
Contact surfaces at all connections shall be free of loose scale, dirt, burrs, oil and other foreign materials
that might prevent solid seating of the parts.
Welded joints not permissible.
The rolling and cutting tolerance for steel product conforming to IS: 266 shall be those specified in the IS:
1852-1973 with latest revision.
all dimensions are subject to the following tolerances:
a) dimensions up to and including 50mm:+1mm: and
b) dimensions greater than 50mm: +2%
The channel cross arm shall be properly brushed to make it free from rust.
For galvanized channel :
All ferrous parts including all sizes of nuts, bolts, plain and spring washers, support channels, structures,
shall; be hot dip galvanized conforming to latest version of 1S:2629 or any other equivalent authoritative
standard. The zinc coating shall be smooth, continuous and uniform. It shall be free from acid spot and
shall not scale, blister or be removable by handling or packing. There shall be no impurities in the zinc or
additives to the galvanic bath which could have a detrimental effect on the durability of the zinc coating.
Before picking, all welding, drilling, cutting, grinding and other finishing operations must be completed and
all grease, paints, varnish, oil, welding slag and other foreign matter completely removed. All
protuberances, which would affect the life of galvanizing shall also be removed.
The weight of zinc deposited shall be in accordance with that stated in Standard IS 2629 and shall
not less than 0.61kg/m² with a minimum thickness of 86 microns for items of thickness more than
5mm, 0.46kg/m² (64 microns) for items of thickness between 2mm and 5mm and 0.33kg/m² (47
microns) for items less than 2mm thick.
The raw materials and fabrication thereof in respect of cross arm shall be furnished along with dimension.
The hole for fixing of insulator and pole clamp shall be provided as per requirement.
One copy of the drawing of cross arm for each size shall be furnished along with the technical bid.
a. REQUIRED TECHNICAL SPECIFICATION FOR GI CHANNEL CROSS ARM
[
sn
Description
Particular
1
Type of cross arm
G.I Channel
2
Size
100 x 50x 6
3
Material
Mild Steel channel
4
5
Breadth
100 mm
6
Width
50 mm
7
Thickness
6 mm
8
Hole for fixing of insulator
26 mm
Center
to 1525 mm
9
centerdistance of hole
10
Hole for pole clamp
18 mm
11
Weight
The cross arm shall be properly brushed
to make it free from rust and hot dip
12
Galvanization
galvanized confirming to IS: 2629 or
equivalent international specifications.
13
Standard applicable
IS: 266; IS: 1852-1973 or equivalent international
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 54 of 123
specifications
5. TECHNICAL SPECIFICATION FOR 33 KV COMPOSITE POLYMERIC INSULATORS
This section covers the specifications for design, manufacture, shop & laboratory testing before dispatch of
33kvcomposite polymeric pin insulators .The Composite insulator shall be pin insulator for straight line
location and Long rod insulator for conductors in tension application at angle/ cut point, the insulator shall
be of boll and socket type or tongue & Clevis type.
1.1
STANDARDS
Sl.
Indian
No
Title
International Standard
Standard
.
1.
Definition,
test
method
and
acceptance criteria for composite
IEC:61109
insulators for a. c. overhead lines
above.
2.
Porcelain insulators for overhead
IS:731
power lines with a nominal voltage
IEC:60383
greater than 1000V
3.
IS:2071
Methods of High voltage testing
IEC:60060-1
4.
Specification for insulator fitting for
overhead power lines with a nominal
IEC:60120
IS:2486
voltage greater than 1000V General
IEC:60372
Requirements and tests Dimensional
Requirements locking devices.
5.
Thermal mechanical performances
IEC:60575
test on string insulator units.
6.
Guide for the selection of insulators in
IS:13134
IEC:60815
respect of polluted conditions.
7.
Characteristics of string insulator units
IEC:60433
of the long rod type.
8.
STRI GUIDE
Hydrophobicity classification
1.92/1
9.
Radio interference characteristics of
CISPR:18-2
overhead power lines and highPART2
voltage equipment
10.
IS:8263
Methods of RI test of HV insulators
IEC:60437
11.
Standard for insulators- composite
ANSI c29.13distribution dead end type
2000
12.
Hot dip Zinc coatings on structural
ISO:1459
IS:4759
steel & other allied products.
ISO:1461
13.
Recommendation of weight for hot,
IS:2629
ISO:1461(E)
dip galvanization for iron and steel
14.
Determination of weight of Zinc
IS:6745
coatings on zinc coated iron and steel
ISO:1460
articles
15.
Method of testing of local thickness of
IS:3203
ISO:2178
electroplated coating
16.
Testing of uniformity of coating of zinc
IS:2633
coated articles
17.
Standard specification for glass fiber
ASTM D 578standards
05
18.
Standard
test
method
for
ASTME 1131compositional
analysis
of
03
thermogravimetry
19.
IS:4699
Specification for refined secondary
Zinc
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 55 of 123
1.2
SERVICE CONDITION
0
Maximum ambient temperature
:* *48 C
0
Minimum ambient temperature
: -5 C
Relative humidity
: 0 to 100%
The size of composite insulator, minimum creepage distance and mechanical strength alongwithhardware
fittings shall be as follows.
Type
Visible
Highest
discharge
system
test
voltage
voltage KV
KV (rms)
(rms)
Wet
power
frequenc
y
withstand
voltage
KV (rms)
P
Min.
Failing
load( KN)
S
of
composite
insulator
Nominal
system
voltage
KV (rms)
I
Long rod
insulator
33
36
27
75
170
720
900
45/70**
Ii
Post/ pin
insulator
33
36
27
75
170
720
900
10
Sl.
No.
Impulse
withstand
voltage
KV (rms)
Min.
Creepage
distance (mm)
Normal
Heavily
&
polluted
moderat
(25mm/
ely
KV)
polluted
(20mm/
KV)
Pin Ball
Shank
Diameter
(mm)
Dimensional Tolerance of composite insulators
±(0.04d=1.5) mm when d < 300 mm
±(0.025d=6) mm when d < 300 mm
1.0
2.0
3.0
4.0
5.0
5
TECHNICAL SPECIFICATION FOR POLYMERIC 33 KV PIN INSULATOR
Scope
This specification covers design, manufacture, testing at manufacturer‘s works, transport to site, storage,
insurance, erection and commissioning of polymeric 33 KV pin insulator for 33 kV lines.
Standard
Polymeric compact insulator with suitable groove in upper pin and long threads in lower part of the pin with
nuts, suitable for 33 KV lines shall be conforming to IEC : 1109 with its latest amendments and revision and
having minimum mechanical failing load of 10 K.N. Insulators conforming to any other internationally accepted
standards which ensure equal or higher quality than the standard mentioned would also be acceptable. A high
class quality, corrosion resistant, fiberglass reinforced rod is the core of every insulator with ultimate
mechanical strength at least twice the maximum working load.
General Requirements
The composite polymer insulator should be uni-body design and injection molded directly to the rod and sealed
to the end fittings with bead of silicon to give the insulator high dielectric strength and protect it from all
environmental conditions. The design of the insulator shall be such that stress due to expansion and contraction
in any part of the insulator shall not lead to deterioration.
The insulator shall be in one piece.
The dimensions of the pins insulator shall be as follows:
33 KV
a) Composite insulator length
310 mm
b) Failing minimum load
10 KN
c) Creepage distance (min) mm
925 mm
d) Dry power frequency 1 min withstand voltage
70 kV (RMS)
e) Wet power frequency 1 min withstand voltage
70 kV (RMS)
f) Dry lightning impulse withstand voltage
170 Kvp
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 56 of 123
6.0
Tests
Pin shall comply with the following tests.
1.1
Type test:
a) Visual examination test
b) Verification of dimensions
c) Checking of threads
d) Galvanizing test
e) Mechanical strength tests
1.2
Routine test:
a) Visual examination test
1.3
Acceptance test:
Checking of threads on heads
a) Galvanizing test
b) Mechanical test
7.0
Inspection
All tests and inspections or shall be carried out at the place of manufacturers unless otherwise agreed by the
purchaser and the manufacturers at the time of purchase. A manufacturer shall afford the inspector or third
party nominee representing the purchaser all reasonable facilities, without charge to satisfy that the materials
are being purchased as per specification. The purchaser reserved the right to have the test carried out at his
co.st by an independent agency, whenever there is dispute regarding the quality of the materials supplied.
8.0
Marking
The pins shall be marked with name of manufacturer, year and name of project.
7. TECHNICAL SPECIFICATION FOR AAA “WOLF” & “RACCOON” CONDUCTOR
1.0
SCOPE:
This specification covers design, manufacture, testing at works, transport, insurance,
storage, erection and commissioning of All Aluminum Alloy Stranded Conductors at site in 33
KV.
2.0
3.0
CONDUCTOR SIZE:
i)
19/3.40 mm (175 mm² Alloy Area) – Wolf
ii)
7/3.81 mm ( 80 mm² Alloy Area ) - Raccoon
APPLICABLE STANDARDS:
Unless otherwise stipulated in this specification, the conductor shall comply with IS: 398 (Part-IV) 1994 or the latest version thereof.
4.0
PROPERTIES OF WIRES:
The properties of Aluminum alloy wires to be used in the construction of the stranded conductors
shall be as in the following Table-1
Table-1
Cross
Maximum
Diameter
area of
breaking
Mass
Resistance at 20° C
nominal
load after
Dia. wire
stranding
Nominal
Min
Max
Max
Standard
Mm
mm
mm
mm2
Kg/Km
KN
Ohm/Km
Ohm/Km
3.40
3.37
3.43
9.079
24.51
2.80
3.67
3.96
3.81
3.77
3.85
11.401
30.78
3.34
2.938
2.851
5.0
PROPERTIES OF CONDUCTORS:
The properties of stranded all aluminum alloy conductors of various sizes shall be as in the following
Table-II
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 57 of 123
All Aluminum Alloy Conductors (AAAC)
Table II
6.0
Nomina
l Alloy
Area
Stranding
& Wire dia.
Sectional
area
Approx.
overall dia.
Approx.
Mass
1
mm2
173
80
2
Mm
19/3.40
7/3.81
3
mm2
172.52
79.81
4
mm
17.00
11.43
5
Kg/Km
474.02
218.26
Calculated
resistance
at 20° C
(Max)
6
Ohm/Km
0.1969
0.425
Approx
calculated
breaking
load
7
KN
50.54
23.41
FREE FROM DEFECTS:
The wire shall be smooth and free from all imperfection such as spills, splits etc.
7.0
JOINTS IN WIRES:
Conductors containing three/seven wires shall be no joint in any wire of a stranded conductor
containing three/seven wires except those made in the base rod or wire before final drawing.
8.0
STRANDING:
8.1
The wires used in the construction of a stranded conductor shall before stranding satisfy all the
relevant requirements of this standard.
8.2
The lay shall be within the limits given in Table-III
Lay Ratios for Aluminum Alloy Stranded Conductors
No. of wires in conductors
7
19
Lay ration
Min.
Max
10
14
10
16
8.3
The outer layer shall be right handed. The wires in each layer shall be evenly and closely stranded.
9.0
CLIMATIC CONDITIONS:
The conductor shall be designed to suit for the climatic conditions specified in these bidding
documents.
10.0
TESTS:
The samples of individual wires for the test shall normally be taken before stranding. The
manufacturer shall carry out test on samples taken out at least from 10% of aluminium wire spools.
However, when desired by the purchaser, the test sample may be taken from the stranded wires.
However the minimum breaking load test shall be done on a sample taken from stranded wires and
the minimum breaking load shall not be less than the value indicated in Table-I.
The wires for alloy conductors shall comply with the following tests as per IS: 398(Part-IV)-1994
11.0
i)
Breaking loads test.
ii)
Elongation test
iii)
Resistance test
PACKING & MARKING:
The conductors shall be owned in reels or drums conforming to the latest version of IS: 1778-1980
―Specification for reels and drums for bare wire and name of the project TDF shall be indicated
clearly on the drums.
10.1
Packing
10.1.1 The gross mass of packing of various conductors shall not exceed by more than 10% of the values
given in the following table:
Conductor size
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Gross Mass
Page 58 of 123
175 mm2 alloy area ( 19/3.40mm)
80 mm² Alloy Area (7/3.81 mm)
2500
1600 KG
10.1.2 The normal length of various conductors shall be as given in the following table:
Conductor size
175 mm2 alloy area ( 19/3.40mm)
80 mm² Alloy Area (7/3.81 mm)
Normal Length
1.1 Km
1.3 KM
10.1.3 Longer lengths shall be acceptable.
10.1.4 Short length, not less than 50% of the normal length shall be acceptable to the maximum extent of
10% of the quantity ordered 10.2 marking.
The following information shall be marked on each package.
11
a)
Manufacturer‘s name.
b)
Trade Mark, if any.
c)
Drum or identification number.
d)
Size of conductor
e)
Number & lengths of conductor
f)
Gross Mass of the package
g)
Net mass of the conductor
h)
ISI certification mark.
i)
Name of the Project TDF
INSPECTION:
All tests and inspection shall be made at the place of manufacture. The manufacturer shall afford the inspection
representing the purchaser or third party nominee all reasonable facilities without charge to satisfy him that the
material is being furnished in accordance with this specification.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 59 of 123
8. TECHNICAL SPECIFICATION FOR 33KV COMPOSITE POLYMERIC DISC
INSULATORS 90 KN
1.0
SCOPE
This specification cover the design, manufactures, testing at manufacturer's works, transport to
site, insurance, storage, erection and commissioning of 33 kV composite polymeric disc
insulator for 33 kV line.
2.0
STANDARD
Strain insulators Tongue and Clevis type/ ball and socket type, suitable for 33 KV lines shall be
conforming to IEC : 1109 with its latest amendments and revision and having mechanical failing load
of 90 K.N. Insulators conforming to any other internationally accepted standards which ensure equal
or higher quality than the standard mentioned would also be acceptable. A high class quality,
corrosion resistant, fiberglass reinforced rod is the core of every insulator with ultimate mechanical
strength at least twice the maximum working load.
Where the material is offered according to the inter-national accepted standard a copy of the
specification shall be attached with the tender.
2.1
GENERAL REQUIREMENT:
The composite polymer insulator should be uni-body design and injection molded directly to the rod and
sealed to the end fittings with bead of silicon to give the insulator high dielectric strength and protect
it from all environmental conditions. The design of the insulator shall be such that stress due to
expansion and contraction in any part of the insulator shall not lead to deterioration.
2.2
The insulator shall be in one piece.
2.3
CLIMATIC CONDITIONS.
i. Maximum ambient temperature in shade
ii. Minimum daily average ambient air temperature
iii. Maximum yearly average ambient air temperature
iv. Maximum ambient temperature
v. Maximum relative humidity
vi. Average number of thunder storms days per annum
vii. Average number of rainy days per annum
viii. Average annual rainfall
ix. Number of months of tropical monsoon conditions
x. Maximum wind pressure
xi. Altitude not exceeding
2.4
BASIC INSULATION LEVEL
The test voltage (minimum requirement) of the insulator shall be as follows:
a)
b)
c)
d)
e)
f)
2.5
:
40°C
:35°C
:
30°C
:2°C
:93%
: 45 days
:
150 days
:2280 mm
:
5 months
:
150 Kg/sq.m
:1000 M
Highest system voltage
Min. Creepage distance
Section length
Rated mechanical tensile load
Wet frequency 1 min. withstand voltage
Dry lighting impulse withstand voltage
: 36 KV(rms)
: 1050mm
: 680mm
: 70 KN
: 85 KV
: 230 KV
MARKING
Each insulator shall be legibly and indelibly marked to show the following:
a)
b)
c)
d)
Name or trade mark of the manufacturer
Month and year of manufacture
Minimum failing load in KN
Country of manufacture
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 60 of 123
e)
ISI certificate mark and name of the project under "TDF 2010-11"
The marking on insulator shall be printed and shall be applied before suitably.
3 TEST
3.1
Type test
The following type tests shall be conducted on a suitable number of individual insulator unit, components,
materials or complete strings:
3.2 Verification of dimensions
3.3
3.4
3.5
3.6
3.7
3.8
Thermal mechanical performance test
Power frequency voltage withstand and flashover test (i) dry (ii) wet
Impulse voltage withstand and flashover test (dry)
Visible discharge test (dry)
RIV test (dry)
Mechanical failing Load Test (for pin insulator only)
3.9 24 hrs. Mechanical strength test (for strain I string insulator only)
4.0 Acceptance Tests
a)
b)
c)
d)
e)
f)
g)
h)
i)
j)
k)
l)
m)
n)
o)
p)
4.1
Visual examination
Verification of dimensions
Temperature cycle test
Galvanizing test
Mechanical performance test
Test on locking device for ball and socket coupling
Eccentricity test
Metallurgical test
Grain size
Inclusion rating
Chemical analysis
Microstructure
Mechanical failing load test (for Pin Insulator only)
Electro-mechanical strength test (for Strain insulator only)
Porosity test
Puncture test (for strain Insulator only)
Routine Tests
a. Visual Inspection
b. Mechanical routine test for Strain Insulator only)
c. Electrical routine test (for Strain Insulator only)
4.2
Tests During Manufacture
On all components as applicable
a) Chemical analysis of zinc used for galvanizing
b) Chemical analysis, mechanical, metallographic test and magnetic particle inspection for malleable
castings.
c) Chemical analysis hardness tests and magnetic particle inspection for forgings
d) Hydraulic Internal Pressure tests On disc insulator shells
4.3
4.4
Test Reports
Copies of type test reports shall be furnished in at least six (6)' copies along with one original. One
copy shall be returned duly certified by the Owner only after which the commercial production of the
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 61 of 123
4.5
4.6
4.7
concerned materials shall start.
Copies of acceptance test reports shall be furnished in at least six (6) copies. One copy shall be
returned duly certified by the Owner, only after which the material shall be dispatch.
Record of routine test reports shall be maintained by the Contractor at his works for periodic
inspection by the Owner's representative.
Test certificates of test during manufacture shall be maintained by the Contractor. These shall be
produced for verification as and 'When desired by the Owner.
5.0 INSPECTION
5.1
The Owner's representative or third party nominee shall at all times be entitled to have access to the
works and all places of manufacture, where insulator, and its component parts shall be manufactured
and the representatives shall have full facilities for unrestricted inspection of the Contractor's and sub
Contractor's works, raw materials, manufacture of the material and for conducting necessary test as
detailed herein.
5.2
The material for final inspection shall be offered by the Contractor only under packed condition as
detailed in the specification. The Owner shall select samples at random from the packed lot for
carrying out acceptance tests.
5.3
After placement of award, the Contractor shall submit fully dimensioned insulator drawings containing
all the details, in four (4) copies to Owner for approval. After getting approval from Owner and
successful completion of all the type tests, the Contractor shall submit 20 more copies of the same
drawing to the Owner for further distribution and field use at Owner's end.
9.
1.0
2.0
TECHNICAL SPECIFICATION OF CONTROL CABLES
SCOPE:
1.1
Specification calls for design, manufacture, stage testing, inspection and testing beforedispatch,
packing and delivery of Copper control cables and Aluminum power cables for 33/11KV substations.
1.2
The control and power cables shall be ISI marked, 1.1 KV Grade. The cores shall have a size of 2.5
sq.mm for control cables and 4 sq. mm. power cable, using solid/stranded Copper conductor with
different number of cores as specified below:1.3
COPPER CONTROL CABLES Unarmoured
i) 12 Core 2.5 sq.mm, solid conductor
ii) 7 Core 2.5 sq.mm., solid conductor.
iii) 4 Core 2.5 sq.mm., solid conductor
iv) 2 Core 2.5 sq.mm., solid conductor
STANDARDS:
2.1
The control and power cables shall conform to the latest applicable Indian Standards. In case bidders
offer control and power cables conforming to any other International Standards which shall be
equivalent or better than IS, the same is acceptable. Cables for which Indian Standards are not
available, the relevant equivalent International Standards will be applicable. Please attach photocopy
of all such standards according to which the cables have been offered
(i) IS: 1554: PVC insulated (Heavy Duty) Control Cables for working voltage & including 1100 Volts.
(ii) IS: 3961: Recommended current ratings for PVC insulated and PVC sheathed heavy duty cables
(iii) IS: 4905: Methods of random sampling
(iv) IS: 5831: PVC insulation and sheath of electric cables
(v) IS: 8130: Conductors for insulated electric cables and flexible cords
(vi) IS: 10418: Wooden drums of electric cables
(vii) IS: 10810: Methods of tests for cables
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 62 of 123
3.0
GENERAL TECHNICAL REQUIREMENTS AND CONSTRUCTIONAL DETAILS:
3.1
Cables shall be suitable for laying on racks, in ducts, trenches, conduits and underground
buried installation with chances of flooding by water. Cables shall be designed to withstand
mechanical, electrical and thermal stresses developed under steady-state and transient operating
conditions as specified elsewhere in this specification.
3.2
CONTROL CABLES
Control cables shall be of 1.1 KV grade, multicore (as specified in Clause 1.3 above), PVC insulated,
PVC inner sheathed, un armoured, PVC outer sheathed with solid copper conductor conforming to
latest version of IS: 1554 or equivalent International Standards.
3.3
The conductor shall be made from high conductivity copper rods complying with latest version of
IS:613 or equivalent International Standards. The conductor shall consist of annealed copper wires
complying with IS: 8130 with latest amendments or equivalent International Standards.
3.4
POWER CABLES:
Power cable shall be of 1.1 KV grade, multicore (as specified in Clause 1.3 above), PVC insulated, PVC inner
sheathed, PVC outer sheathed with stranded conductor.
3.5
INSULATION:
Conductor shall be provided with PVC insulation applied by extrusion in accordance with latest version of IS:
5831 or equivalent International Standards. The average thickness of insulation shall be in accordance with the
IS: 1554 (Part-I) with latest amendments or equivalent International Standards. Insulation shall be so applied
that it fits closely on the conductor and shall be possible to remove it without damages to the conductor.
3.6
CODE IDENTIFICATION:
Colouring of insulation shall identify cores of the cables of upto 5 cores. Following colour schemes shall be
adopted:Sl .No.
1
2
3
No of Cores
2 core
4 core
5 core
Colour Scheme
Red and Black
Red, Yellow, Black, Blue and Grey
a) Two adjacent cores (counting and direction core) in each layer, Blue
and Yellow, remaining cores Grey or in accordance with the scheme
given in IS 1554
b). Cables having more than 5 cores, as an alternate to the provision of
(a) above, core identification may be done by numbers as indicated in
latest version of IS: 1554 (PART-I) 10 core identification.
3.7
LAYING UP OF CORES:
In multi-core cables, the cores shall be laid up together with a suitable lay, the outer most layer shall have righthand lay and successive layer shall be laid with opposite lay, where necessary, the interstices shall be filled with
non hygroscopic materials.
3.8
INNER SHEATH:
The laid up cores shall be provided with inner sheath applied by extrusion. It shall be ensured that the shape be
as circular as possible. The inner sheath shall be so applied that it fits closely on the laid up cores and it shall be
possible to remove it without damage to the insulation. Thickness of inner sheath shall be conforming to latest
version of IS: 1554 (Part-I) or equivalent International Standards.
3.9
FILLER AND INNER SHEATH:
Filler and inner sheath shall be of the following:
Unvulcanised rubber,?? or
Thermoplastic?? materials, or
Proofed tape (for?? inner sheath only)
Unvulcanised rubber or thermoplastic material used shall not be harder than PVC used for insulation and outer
sheath. Material shall be chosen to be compatible with temperature ratings of the cable and shall have no
deterious effect on any other component of the cable.
3.10
OUTER SHEATH:
The outer sheath shall Over the inner sheath in case of??be applied by extrusion. It shall be applied: unarmoured
multicore cables Outer sheath shall be so applied that it fits closely over insulation / inner sheath / armouring. It shall
be possible to remove it without damage to the insulation / inner sheath. The colour of the
outer sheath shall be black. Thickness of outer sheath insulation shall conform to latest version of IS: 1554 Part-I or
equivalent international standards.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
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4.0
IDENTIFICATION:
4.1
In addition to manufacturer‘s identification on cable as per clause-17.1 of IS: 1554 (Part-I) with latest
amendments, following marking shall also be embossed over outer sheath at every three meters:Cable size and?? voltage grade
Word ―APDCL‖ and Name?? of manufacturer
ISI marking and?? sequential marking by means of embossing
The embossing shall be in line throughout the length of the cable and shall be legible and indelible.
5.0
PACKING AND MARKING:
5.1
Cables shall be supplied in non-returnable drums. The surface of the drum and outer most cable layer
shall be covered with waterproof layer. Both the ends of the cables shall be properly sealed with heat
shrinkable PVC or rubber caps, secured by ‗U‘ nails so as to eliminate ingress of water during
transportation storage and erection. Following information should be stenciled on the drum:
Reference?? no of relevant Indian or International Standard.
Manufacturer‘s name,?? brand name or trade mark
Type of cable and?? voltage grade
Number of cores??
Nominal?? cross-sectional area of the conductor
Cable code??
Colour of cores??
Length of cable on?? the drum
Number of lengths on?? drum (if more than one)
Direction of rotation?? of drum by means of an arrow
Approximate gross?? weight
Running end of cable??
Country of?? manufacturer and year of manufacture
5.2
As mentioned, the cable drum must bear relevant Indian/International Standard certification Mark. In
this connection, a certified Photostat copy of valid standard marking license rights duly attested must
be submitted along with the inspection offer as documentary evidence. In absence of these
documents, the inspection offer will not be considered.
6.0
STANDARD DRUM LENGTH:
6.1
Standard drum length for cable shall be 500/250 meters.
6.2
TOLERANCE:
Tolerance on the overall diameter of the Cable shall be ± 2 mm over the declared value in the techanical data sheets
of Guaranteed Technical Particulars. Length per drum shall be subjected to maximum tolerance of ± 5% of the
standard drum length. The Employer shall have option to reject cable drums with shorter length. Over all tolerance in
total quantity for each type and size of cables shall be ± 2%.
7.0
TESTS:
7.1
All types and sizes of cable being supplied shall be subjected to Type tests, Additional test,
Routine tests and Acceptance tests as specified below at the expense of manufacturer and according to relevant
standards.
7.2
TYPE TESTS AND ADDITIONAL TESTS:
It is essential to furnish all the type test reports for each type and size of cable as stipulated in latest version of IS:
1554 (Part-I) and following Additional Tests:
Loss of mass test??
Heat shock test??
Thermal stability?? test
Accelerated water?? absorption test
Dielectric strength?? retention test
Above tests shall be conducted in NABL approved Testing laboratories only.
7.3
ACCEPTANCE TEST
Acceptance test shall be carried out on each type and size of cables on cable drums selected at random as per
following plan :Sl.No
Numbers of Drums in the Tests
Number of Drums to be taken as
samples
1
Upto 50
2
2
51 to 100
5
3
From 101 to 300
13
4
From 301 to 500
20
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 64 of 123
5
From above 501
32
7.4
The following shall constitute acceptance tests :Annealing Test??
Conductor Resistance?? Test
Wrapping Test??
Tensile Test??
Test for Thickness of?? Insulation and Sheath
Tensile Strength and?? elongation test before ageing and after ageing at break of insulation
and sheath
High Voltage Test?? (Water Immersion Test)
High Voltage Test at?? Room Temperature
7.5
ROUTINE TESTS:
Routine test shall be carried out for each drum of cables of all types and sizes. Following shall constitute routine
tests :
Conductor Resistance?? Test
Resistance Test??
High Voltage Test at?? Room Temperature
7.6
i.
ii.
iii.
iv.
While preparing cable schedules for control/protection purpose following shall be ensured:
Separate cables shall be used for AC & DC.
For different cores of CT & PT/CVT separate cable shall be used
At least one (1) cores shall be kept as spare in each copper control cable of 4C, 5C or 7C size whereas
minimum no. of spare cores shall be two (2) for control cables of 10 core or higher size.
For control cabling, including CT/PT circuits, 4.0 sq.mm. size copper cables shall be used per
connection
10.
1.0
TECHNICAL SPECIFICATION FOR CAST IRON EARTH PIPE
Scope
This specification covers design, manufacture, testing, transport to site, insurance, storage, erection and
commissioning of the cast iron earth pipe for use on line &substation as earthing pipe
2.0
Standard
The Earth pipe shall comply with the Indian Standard specification IS: 1729/1964 and as amended from time to time
except where they conflict with the specific requirements in this specification.
3.0
Manufacture
Metal used for the manufacture of pipes shall be good quality cast iron.
Casting shall be stripped with all precautions necessary to avoid wrapping and shrinkage defects. They shall be free
from defects which effect the use of castings. By agreement between the purchaser and the manufacturer,
minor defects may be rectified.
Pipes shall be such that they could be cut, drilled or machines.
Bolts, buts &washers shall be made of Steel and well galvanized. The bolts shall be of 200 mm length, 16 mm
diameter with 2(two) nos. plain washers, one locknut &one check nut. Threaded length of the bolts should be 50
mm.
4.0
Sizes
Dimensions of pipe &socket shall be conform to the sizes shown below and as per drawing enclosed:
Nominal length of the pipe with socket
1800 mm
Nominal diameter of pipe
100 mm
External diameter of pipe
110 mm
Thickness of pipe
5 mm
Projection of spigot bead
3 mm
Width of spigot bead
15 mm
Internal dia of socket
129 mm
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 65 of 123
Thickness of socket
6 mm
Internal depth of socket
70 mm
Internal Radius of socket
5 mm
Width of grooves of socket
10 mm
External dia of grooves socket
155 mm
Depth of grooves of socket
5 mm
Nominal weight of pipe (Exclusive of ear)
21.67 Kg
5.0
Tolerance
The Tolerance of the 100 mm nominal diameter pipe shall be ±3.5 mm
The Tolerance of pipe thickness shall be
- 15 percent
The Tolerance of length of the pipe shall be
- ± 20mm
The Tolerance of weight of the pipe shall be
- 10 Percent
Pipes weighing more than the nominal weight may be accepted provided they comply in every other respect with the
requirements of this standard.
6.0
TEST
Hammer test: Each pipe when tested for soundness by striking with a light hand hammer shall emit a clear
ringing sound.
Hydraulic test : If so required by the purchaser, pipe shall be tested hydraulically at a pressure of 0.4
2
kg/cm without showing any sign of leakage, sweating or other defect of any kind. The pressure shall be applied
internally and shall be maintained for not less than 15 seconds. The tests shall be conducted before coating of
pipe.
7.0
Inspection
All tests and inspection shall be carried out at the place of manufacturers unless otherwise agreed by the purchaser
and the manufacturer at the time of purchase. A manufacturer shall afford the inspector representing the
purchaser or third party nominee all reasonable facilities without charge to satisfy that the materials are being
purchased as per specification. The purchaser reserves the right to have the test carried out at his cost by an
independent agency, whenever there is dispute regarding the quality of materials supplied. All incoming
consignment shall be checked at stores.
8.0
Coating
Normally pipes, unless specially ordered, shall be supplied free of coating on surfaces.
9.0
Marking
Each pipe shall have the Trade mark of the manufacturer and nominal size suitably marked on it. The pipe marked
with the ISI certificate mark, shall be preferred. The equipments shall be marked with name of manufacturer,
year and name of project.
11.
a)
TECHNICAL SPECIFICATION FOR G.I. WIRE
Scope
This specification covers the manufacturing, testing at works, transport to site, insurance, storage, erection and
commissioning of Galvanised Iron Wire of sizes 4 mm and 5 mm diameter.
1.0
General requirements
It relating to the supply of mild steel wire shall be as per IS: 1387/1967 and the wire shall be drawn from the wire
rods conforming to IS: 7887/1975.
The requirements for chemical composition for the wires shall conform to IS:7887/1975.
Mild steel wire for General Engineering purpose shall be of following sizes:
I)
4mm - diameter (8 SWG)
II)
5mm - diameter (6 SWG)
Tolerance permitted on the diameter of wire shall be as per Table -1 of IS:280/1978.
7.0
Climatic Conditions
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 66 of 123
The cross arms should be suitable for the climatic condition mentioned In these bidding documents:
8.0
4.1
4.2
Mechanical Properties
Tensile Test: Tensile strength of wire when tested in accordance with IS:
1521-1972, shall be within the limits given in Table-2 of IS: 280/1978.
Wrapping Test: Wires shall be subjected wrapping test in accordance with IS: 1755-1961. The wire
shall withstand without breaking or splitting. being wrapped eight times round its own diameter and
subsequently straightened.
9.0
Surface finish
a.
The wire shall have galvanized finishes. The galvanized coating of steel wire shall conform to the
requirements for anyone of the types of coatings given in IS: 4826-1968 as per agreement with the
purchaser.
The coating test for finishes other than galvanized, copper coated or tinned shall be subject to
between the purchaser and the manufacturer.
Unless otherwise agreed to the method of drawing representative samples of the material
and the criteria for conforming shall be as prescribed in Appendix (A) of IS: 280/1978.
All finished wires shall be well and cleanly drawn to the dimensions specified. The wire shall be
sound, free from splits, surface flaws, rough jagged and imperfect edges and other harmful surface
defects.
Each coil of wire shall be suitably bound and fastened compactly and shall be protected by suitably
wrapped.
b.
c.
d.
e.
10.0
11.0
Marking
Each coil of wire shall be marked legibly with the finish size of wire, lot number and trade mark of the
name of the manufacturer. The material may also be marked with the ISI certification mark and
name of the project.
INSPECTION
Inspection may be carried out by the purchaser or third party nominee at any stage of manufacture. The
supplier shall grant free access to the purchaser's representative or third party nominee at a
reasonable time when the work is in progress. Inspection and acceptance of any equipment under
this specification by the purchaser shall not relieve the supplier of his obligation of furnishing
equipment in accordance with the specification and shall not prevent subsequent rejection if the
equipment is found defective.
12.
1.0
2.0
TECHNICAL SPECIFICATION FOR DANGER NOTICE PLATE 33 kV
SCOPE:
This specification covers Danger Notice Plates to be displayed in accordance with rule No.35 of
Indian Electricity Rules, 1956.
APPLICABLE STANDARDS.
Unless otherwise modified in this specification, Danger Notice [Plates shall comply with IS:-1982
or the latest version thereof.
3.0
DIMENSIONS.
Size of Danger Notice Plates as follows are recommended
For display at 33 KV installation - 250 x 200 mm.
The comers of the plate shall be rounded off.
The location of fixing holes as shown in Figs. 1 to 4 is provisional and can be modified to suit
the requirements at site.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 67 of 123
4.0
LETTERINGS
All letterings shall be centrally spaced. The dimensions of the letters, figures and their
respective position shall be as shown in figs. 1 to 4. The size of letters in the words in each language
and spacing between them shall be so chosen that these are uniformly written in the space
earmarked for them.
5.0
LANGUAGES
I.
Under Rule No. 35 of Indian Electricity Rules, 1956, the owner of every medium, and
extra high voltage installation is required to affix permanently in a conspicuous position a
danger notice in Hindi or English and in addition, in local language, with the sign of
skull and bones.
II.
The type and size of lettering to be done in Hindi is indicated in the specimen danger
notice plates shown in fig: 2 and 4 and those in English are shown in fig. 1 and 3.
III.
Adequate space has been provided in the specimen danger notice plates for having the
letterings in local language for the equivalent of Danger, 33000 ‗Volts‘
6.0
MATERIAL AND FINISH
The plate shall be made from mild sheet of at least 1.6 mm thick and vitreous enameled white,
with letters, figures and the conventional skull and cross-bones in signal red colour (refer 1S: 51978) on the front side. The rear side of the plate shall also be enameled.
7.0
TESTS.
The following tests shall be carried out.
i)
Visual examination as per 18:2551-1982.
ii)
Dimensional check as per IS: 2551-1982.
iii) Test for weather proof as per IS: 8709-1977 (or its latest version).
8.0
MARKING.
9.0
Maker's name and trade mark and the purchaser's name shall be marked in such a manner and
position on the plates that it does not interfere with the other information.
PACKING.
The plates shall be packed in wooden crates suitable for rough handling and acceptable for rail/road.‘
12
1.0
2.0
3.0
TECHNICAL SPECIFICATION FOR HARDWARE FITTINGS INCLUDING TENSION CLAMP ASSEMBLY FOR
“RACCOON” CONDUCTOR
Scope: This specification covers design, drawings, manufacture, testing at manufacturers‘ works, supply and delivery of
suspension clamp for use with Raccoon (7/3.81mm-80 sqmm)/Wolf (19/3.4mm-175sqmm) conductors within the
state of Assam.
Standard: The material and process adopted in the manufacture shall conform to the provision of the following standards
amended up-to-date IS: 2486 specification or equivalent international specifications for Insulator fitting for
overhead power lines.
General: The tension clamps offered shall be made of die cast high strength aluminum alloy and shall be suitable for use
with ―Raccoon and Wolf‖ conductors together with one set of preformed armour rods. Suitable sheet metal liner
shall be provided.
The clamp shall move easy oscillation around horizontal axis.
The bidder is to quote separately for suspension clamp:
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 68 of 123
i)
Envelope type
ii)
Bottom free centre type design.
The single tension clamp shall consist of the following components: Description
Quantity Material
1.
Ball hook without provision for
1 no.
Forged Steel
Arching horn
2.
Socket type without provision for
1set
MCI
Arching horn
1.
Tension clamp for AAAC
1 no
Aluminum alloy
Raccoon /Wolf conductors
The clamp shall be of high corrosion resistant, light in weight, have low effective power loss and small moment
of inertia enabling it to follows freely the movements of the conductor
The tension clamp shall also be provided with suitable socket or clevis eye for connecting it to the insulator
string.
The seat and clamping surface should be smooth, without any projections or sharp bends and should be formed
to support the conductor on long, easy curves at the comparatively sharp bends. Minimum failing load = 70 KN.
The slip strength of tension clamp shall not exceed 15% of the breaking load of the conductor.
4.0
Tests: The hardware fittings shall be subjected to all the tests in accordance with relevant Indian Standard
Specifications. The purchaser shall have the right to carryout acceptance tests, in the presence of
representatives of the purchaser.
The bidder shall submit type test certificate along with the tenders.
The following tests shall be carried out.
i)
Type Test: 13 Slip Strength test for clamp.
14 Mechanical test for clamp & fittings
15 Heating cycle test.
16 Verification of dimensions.
17 Galvanizing / Electroplating test.
18 Visual examination test
ii)
Acceptance Test:
a)
Dimensional test.
b)
Galvanizing test.
c)
Mechanical test for clamp & fittings
d)
Electrical Resistance Test.
iii)
Routine Test:
a) Visual examination test.
b) Routine mechanical test.
Guaranteed Technical Particulars (GTP) and drawing specifically showing all dimensions are to be
submitted along with technical bids
N.B: ANY TECHNICAL SPECIFICATION FOUND MISSING/ NOT PROVIDED IN
THIS BID MAY BE COLLECTED FROM THE O/O THE CGM (D), APDCL (LAR).
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 69 of 123
SECTION :7
GUARANTEED TECHNICAL
PARTICULARS
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 70 of 123
1 TECHNICAL SPECIFICATIONS FOR 36 KV VACUUM CIRCUIT BREAKER
1.0
SCOPE
1.1
This section of specification covers the design, manufacture, assembly under stringent quality
control at every stage of manufacturing, testing at manufacturer's works before dispatch, supply
and delivery at destination store and supervision of erection, testing and commissioning of 36
KV outdoor type vacuum circuit breakers at various substations in SEB.
1.2
The scope of supply shall also include necessary special tools and plants required for erection,
maintenance and necessary spares, required for normal operation and maintenance of the
circuit breakers for a period of five years.
1.3
The circuit breakers should be complete in all respects with insulators, bimetallic connectors,
interrupting chamber, operating mechanism control cabinet, interlocks, auxiliary switches
indicating devices, supporting structures, accessories, etc., described herein and briefly listed in
the schedule of requirements. The spares/attachments which are meant necessary for the
smooth functioning of the equipment and specifically are not mentioned here shall be assumed
to be included the scope of supply.
1.4
It may be noted that the Vacuum Circuit Breaker must meet the following minimum criteria. Failure to
comply with the requirements may results in rejection of the BID as non-responsive:
1.4..1
2.0
The Manufacturer must have designed, manufactured, type tested and supplied vacuum circuit
breaker in at least two power utilities of similar rating which are in successful operation for at least 5
(Five) years as on the date of bid opening which should be substantiated by furnishing performance
report from the official of the rank not below DGM/SE
1.5
The manufacturer of the VCB must use their own make Vacuum Interrupters and must have inhouse manufacturing facility for Vacuum Interrupter & Breaker (including mechanism)
1.6
Design and construction of Vacuum Circuit Breaker shall be such that there is no possibility for
entry of moisture. There should not be any condensation or accumulation of moisture on the
internal insulating surfaces and operating rod of the circuit breaker. For this purpose complete
interrupter housing and support insulator should be filled either with SF6 gas or with Nitrogen or
some other dielectric medium pressurized to avert condensation. For monitoring positive gas
pressure monitoring device shall be provided by supplier for each pole. Bidder may please note
that any other device like heater, fan etc. which requires operation monitoring on continuous
basis are not acceptable to the purchaser.
STANDARDS
2.1
The circuit breaker shall conform in all respects to the requirements of latest issue of IS/IEC
specifications except for modifications specified herein. The equipment manufactured according
to any other authoritative standards which ensure an equal or better quality than the provision of
IS/IEC specifications shall also be acceptable. The salient point of difference between the
proposed standard and provision of these specifications shall be clearly brought out in the
tender. A copy of English version of such specifications shall be enclosed with the tender.
2.2
The list of standards mentioned in this specification and to which the circuit conform is given
below:
1.
IEC-56
High Voltage A.C. Circuit Breakers
2
IEC-137
Bushing for alternating voltage above 1000 volts
3.
IEC-71
4.
IEC-694
Insulation Co-ordination
Common clauses for high voltages switchgear and control gear standards
5.
IEC-815
Specification for Creepage distance
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 71 of 123
6.
IS-13118
7.
IS-2099
Specifications for high voltage alternating current
circuitporcelain
breakersbushings
High voltages
8.
IS-4379
Identification of the contents of industrial gas cylinders
9.
IS-3072
10.
IEC-267
Installation and maintenance of switchgear
Guide for testing of circuit breakers with respect to out
of use
phase
switching steel in overhead
Code of practice for
of structural
11.
IS-802
12. IEC-17A
Group
13. 5tudy
IS-1554
Dec.1981
14.
IS-5
3.0
lines
Sealingtransmission
of interrupters
I breakers
PVC insulated cables upto and including 1000 volts
Colors for ready mixed paints and channels
CLIMATIC CONDITONS
The breakers and accessories to be supplied against this specification shall be suitable for satisfactory continuous
operation under the tropical conditions specified in this bidding document.
4.0
AUXILIARY POWER SUPPLY
4.1
Auxiliary electrical equipment shall be suitable for operation on the following supply system.
a. Power Devices (like drive motors) 415 V, 3 phase 4 wire 50 hz, neutral grounded AC supply
b. DC Alarm, Control and Protective Devices 110 V DC,
c. Lighting 240 V, single phase 50 Hz AC supply
4.2
Each of the foregoing supplies shall be made available by the Purchaser at the terminal point for each
circuit breaker for operation of accessories and auxiliary equipment. Bidder's scope includes supply of
interconnecting cables, terminal boxes, etc. The above supply voltage may vary as indicated below
and all devices shall be suitable for continuous operation over the entire range of voltages
1) AC Supply
2) Frequency
415V (+ 10% /-- 15%)
50Hz (± 5%)
2) DC Supply
110V ( - 15% to + 10%)
5.0
GENERAL REQUIREMENT OF 36 KV/OUTDOOR VACUUM CIRCUIT BREAKERS
5.1
The vacuum type circuit breaker shall have vacuum interrupters, designed to provide a long contact life
at all currents upto rated making and breaking current during switching operation: The vacuum interrupters
sealed for life shall be encapsulated by porcelain insulators for out door installation requirement of the circuit
breakers. The offered breakers shall be suitable for out door operation under climatic conditions specified
without any protection from sun, rain and dust storm.
5.2
The vacuum interrupters of each phase shall be housed in a separate porcelain insulator. The three
identical poles shall be mounted on a' common base frame and the contact system of three poles should be
mechanically linked to provide three pole gang opening/closing for all type of faults.
i.
The performance of breakers shall be adequately proven by type tests for the designed rating at
internationally reputed independent testing station.
ii.
The offered equipment shall be practically maintenance free over a long period.
iii.
All mechanical parts and linkages shall be robust in construction and maintenance free, over at least
30,000 switching operations except for lubrication of pins/articulated joints at interval of 5 years or
5000 operations.
iv)
Similar parts shall be strictly interchangeable without special adjustment of individual fittings. Parts
requiring maintenance shall be easily accessible, without requiring extensive dismantling of adjacent
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 72 of 123
parts.
6.0
7.0
v)
The operating mechanism will be self maintained and of proper operation endurance not less than the
mechanical life of circuit breaking unit. It shall be spring operated type described hereinafter.
vi)
The circuit breaker shall be supplied complete with all auxiliary equipment meant necessary for the
safe operation, routine and periodic maintenance. All internal wiring including those of spare auxiliary
contacts shall be complete and wired upto terminal blocks situated near cable gland plate.
vii)
The breaker shall be totally restrike free under all duty conditions and shall be capable of performing
the duties without opening resistor. The details of any device incorporated to limit or control the rate of
rise of restriking voltage across the circuit breaker contacts shall be stated.
viii)
The breaker shall be reasonably quiet in operation and the noise level shall not exceed 140 decibels.
ix)
The breaker shall be suitable for three phase reclosing operation.
x)
An operation counter, visible from the ground level even with the mechanism housing closed shall be
provided.
VACUUM INTERRUPTER ASSEMBLY
6.1
Each pole of the circuit breaker shall be provided with vacuum interrupter, one for each phase,
hermetically sealed for life and encapsulated by ceramic insulators. The interrupter shall be provided
with steel chromium are chamber to prevent vaporized contact material being deposited on the
insulating body. A further shield giving protection to the metal bellows shall also follow the travel of the
moving contacts to seal the interrupter against the surroundings atmosphere.
6.2
It shall have high and consistent dielectric strength of vacuum unaffected by environment and
switching operations. Bronzed joints should ensure retention of vacuum for life time. It shall have low
and stable contact resistance due to absence of oxidation effects and shall ensure low power loss. The
arcing voltage shall be low
with minimum contact erosion.
6.3
The manufacturer of VCB should use their own Vacuum interrupter so that the drive mechanism is
matched perfectly with that of the requirement of Vacuum Interrupter.
6.4
The vacuum bottles should be capable of withstanding minimum 100 full short circuit operations as
per test duty 1 to 5 of IEC-56. The vacuum bottles, capable of withstanding less than 100 full short
circuit faults, would not be considered and therefore should not be offered.
6.5
A manufacture‘s type test reports / literature for vacuum bottles, may, therefore be supplied along with
tender in duplicate.
6.6
Vacuum Interrupters of China make should not be offered.
FIXED AND MOVING CONTACT
7.1
The fixed and moving contacts of the breaker have to ensure permanent full contact during closing
without unusual maintenance. All making and breaking contacts shall be hermetically sealed and free
from atmospheric effects.
7.2
The contacts metallurgy and geometry shall be such that there is minimum contact burning and wear.
Main contact shall have ample area and contact pressure for carrying the rated current and rated short
time current without excessive temperature rise which may cause pitting or welding of the contacts.
7.3
The main contacts should have low contact resistance. The contact should be self cleaning type, i.e.,
the layer of copper oxide should be cleaned during rubbing of contacts. The contact area should be
well defined, spring used for contact shall be of gradually rising characteristic i.e., they should be soft.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 73 of 123
The contacts should not provide contact grip, ie., electro-magnetic forces should not grip the contacts
and oppose the opening process. It would be desirable to have separate main contacts and arcing
contacts in order to have longer life of the contacts. The contours of the energized metal parts of the
breaker shall be such as to eliminate areas or points of high electrostatic flux concentration. Surfaces
shall be smooth with no projection or irregularities which may cause visible corona. No corona shall be
visible in complete darkness when the equipment is subjected to the specified test voltage.
7.4
8.0
RECOVERY VOLTAGE AND POWER FACTOR
8.1
9.0
10.0
9.1
The complete data for the phase factor, amplitude factor, etc., for rate of rise of restriking voltage shall
be furnished in the tender.
9.2
The circuit breaker shall be designed so as to be capable of interrupting line charging currents without
undue rise in the voltage on the supply side without restrike and without showing sign of undue strains.
9.3
The maximum permissible switching over voltage shall not exceed 2.5 p.u. The guaranteed over
voltage, which will not be exceeded while interrupting the rated line charging current for which the
breaker is designed to interrupt shall also be stated. The results of the tests conducted along with the
copies of the oscillographs to prove ability of the breakers to interrupt the rated as well as lower values
of the line charging current shall be furnished with the tender.
TRANSFORMER CHARGING CURRENT BREAKING CAPACITY
The breaker shall be capable of interrupting inductive currents, such as those occurring while switching
off unloaded transformers, without giving rise to undue over voltage and without restrikes. The
maximum over voltage value, which will not be exceeded under such conditions, shall be stated in the
tender.
BREAKING CAPACITY FOR SHORTLINE FAULTS
11.1
12.0
The circuit breaker shall be capable of interrupting rated power with recovery voltage equal to the rated
maximum line to line service voltage at rated frequency and at a power factor equal to or exceeding
0.15.
RESTRIKING RECOVERY and LINE CHARGING INTERRUPTING CAPACITY
10.1
11.0
The circuit breaker units shall be suitable for installation on outdoor R.C.C. foundations. Ground
clearance of the live parts of the breakers should be 3700 mm from foundation. The circuit breakers
shall be spring operated.
The interrupting capacity of the breaker for short line faults shall be stated in the tender. The details of
the test conducted for proving the capability of the breaker under a short line fault occurring from one
phase to earth conditions shall also be stated in the tender. The rated characteristics for short line
faults shall be in accordance with stipulation contained in clause 8.0 of IEC-56(2)-1971.
AUTOMATIC RAPID RECLOSING and OUT OF PHASE SWITCHING
12.1
36 KV circuit breaker shall be suitable for 3 pole rapid reclosing. The dead time of the breaker shall be
adjustable and the limits of the adjustment shall be stated in the tender.
12.2
The circuit breaker shall be capable of satisfactory operation even under conditions of phase
opposition that may arise due to faulty synchronization. The maximum power that the breaker can
satisfactorily interrupt under "Phase Opposition" shall be stated in the bid".
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13.0
14.0
TEMPERATURE RISE
13.1
The maximum temperature attained by any part of the equipment when in service at side and under
continuous full load conditions and exposed to the direct rays of the sun shall not exceed the
permissible limits fixed by IEC. When the standards specify the limits of temperature rise these shall
not be exceeded when corrected for the difference between ambient temperature specified in the
approved specification.
13.2
The limits of temperature rise shall also be corrected for altitude as per IEC and stated in the bid.
INSULATORS SUPPORTS AND HOUSING
14.1
The basic insulation level of the external insulator supporting shall be as stated in the "Technical
Parameters" and these shall be suitable for use under climatic conditions as stated elsewhere in the
specification. The porcelain used shall be homogenous, free from cavities and other flaws.
14.2
The insulators shall be designed to have ample insulation, mechanical strength and rigidity for
satisfactory operation under conditions specified above.
14.3 All bushings of identical rating shall be interchangeable. The puncture strength of bushing shall be
greater than the flash over value. The design of bushing shall be such that the complete bushing in a
self-contained unit and no audible discharge shall be detected at a voltage upto a working voltage
(Phase Voltage) plus 10%. The support insulator shall conform to IEC-137.
15.0
14.4
Minimum clearance between phases, between live parts and grounded objects shall be as per IS3072-1975 and should conform to Indian Electricity Rules-1956. The minimum creepage distance for
severely polluted atmosphere shall be 27 mm/KV.
14.5
. The air clearance of bushing should be such that if the bushings were tested at an altitude of less
than 1000 meters, air clearance would withstand the application of higher voltages (IS-2099-1973 para
6.1). In order to avoid breakdown at extremely low pressures the support insulators should not be
covered by moisture and conducting dust. Insulators should therefore be extremely clean and should
have anti-tracking properties. Sharp contours in conducting parts should be avoided for breakdown of
insulation. The insulators shall be capable to withstand the seismic acceleration of 0.5 g in horizontal
direction and 0.6g in vertical direction.
OPERATING MECHANISM GENERAL REQUIREMENTS
15.1
The operating mechanism shall be stored energy type and capable of giving specified duty of the
breaker The breaker shall also pass the operational test which ascertain the capabilities of operating
mechanism. The operating mechanism shall be capable to perform the following functions efficiently.
i)
To provide means where the circuit breaker can be closed rapidly, without hesitation at all currents
from zero to rated making current capacity.
ii)
To hold the circuit breaker in closed positions by toggles or latches till the tripping signal is received.
iii) To allow the circuit breaker to open without delay immediately on receiving tripping signal.
iv) Operating mechanism should also be suitable for three phase auto reclose duty. The closing spring
shall be automatically charged by motor immediately after closing operation.
v)
In case of failure of supply to the spring charging motor, the spring shall be chargeable by hand crank.
vi)
The contact pressure spring and tripping spring shall be chargeable during closing operation to ensure
the breaker is ready to open.
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vii) Mechanically ON/OFF indicator, spring charged indicator and operation counter shall be provided on
the front of the control cubicle. For tripping, the spring provided shall ensure the trippings.
16.0
Tripping/Closing Coils
16.1
The circuit breakers shall be provided with two trip coils and one closing coil per breaker. First trip coil
shall be utilized for tripping the breaker on main protection fault detection. Whereas second trip coil
shall be used to trip the breaker when first trip coil fails to trip the breaker and backup protection comes
into operation and shall also be used to trip the breaker on command.
16.2
The trip coils shall be suitable for pre-closing and after closing trip circuit supervision. All the breakers
shall have provision for independent electrical operation of trip coils from local as well as remote
through local/remote selector switch. The breaker shall be provided with suitable protection device
against discrepancies in the operation of individual pole.
16.3
Closing coil shall operate correctly at all value of voltage between 85% and 110% of the rated voltage.
Shunt trip coils shall operate correctly under all operating conditions of the circuit breaker upto the
rated breaking capacity and at all values of supply voltage between 70% and 110% of rated voltage.
16.4
Trip Free Features
a. When the breaker has been instructed to close by manual instructions by pushing of push button,
the operating mechanism will start operating for closing operations. If in the mean time a fault has
taken place, the relay provision shall be such that it should close the trip circuit simultaneously
interrupting the live circuit of closing coil which has been instructed for close command.
b. The trip free mechanism shall permit the circuit breaker to be tripped by the protective relay even if it
is under the process of closing. An antipumping device to prevent the circuit breaker from reclosing
after an automatic opening shall be provided to avoid the breaker from pumping i.e., anti pumping
relay should interrupt the closing coil circuit.
17.0
Controls
17.1
The circuit breaker shall be controlled by a control switch located in the control room. The control
arrangement shall be such as to disconnect the remote control circuits of the breaker, when it is under
test.
17.2
Local control devices, selector switch and position indicator shall be located in weather and verminproof cabinet.
17.3
The circuit breaker control scheme shall incorporate trip circuit supervision arrangement. Local/remote
selector switch shall be provided for all breakers for selection of "Local" control/remote control.
Provision shall be made for local manual, electrical and spring controls. Necessary equipment's for
local controls shall be housed in the circuit breaker cabinet of weather-proof construction. In addition to
this, a hand closing device for facilitating maintenance shall also be provided.
17.4
Each circuit breaker shall have a mechanical open/closed and spring charge indicator in addition to
facilities for provisions for semaphore indicators for breakers which are required for the mimic diagram
in the control room.
17.5
Lamps for indicating, 'close/open' position of the breaker shall also be provided.
17.6
Mechanical indicator, to show the 'open' and 'close' position of the breaker shall be provided in a
position where it will be visible to a man standing on ground with mechanism housing open. An
operation counter, visible from the ground even with the mechanism housing closed, shall be provided.
Electrical tripping of the breaker shall be performed by shunt trip coils.
17.7
Operating mechanism and all accessories shall be enclosed in control cabinet. A common marshalling
box for the three poles of the breaker shall be provided, along with supply of tubing, cables from
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individual pole operating boxes to the common marshalling box, local.
18.0
SPRING OPERATED MECHANISM and MOTOR
18.1
The motor compressed spring mechanism shall consist of a closing spring which is wound or
compressed by an electric motor immediately after the breaker closes. The closing action shall also
wind or compress a tripping springs shall be wound.
18.2
After the breaker has tripped, the tripping spring shall remain in the released position as long as the
breaker is open, but the closing spring shall remain wound and ready for closing operation. Spring
charging motor shall be standard single phase universal motor suitable for 220 volts supply.
i) Operating voltages for closing/tripping coils shall be 110 Volts DC.
ii) Operating voltages for heater elements shall be 220V AC 50 HZ. Other features of the spring operated
mechanism shall be as follows.
18.3
The spring operating mechanism shall have adequate energy stored in the operating to close and latch
the circuit breaker against the rated making current and also to provide the required energy for tripping
mechanism in case the tripping energy is derived from the operating mechanism.
18.4
The mechanism shall be capable of performing the rated operating duty cycle of 0-0.3Sec-CO-3 MinCO as per IEC-56.
18.5
The spring charging motor shall be AC/DC operated and shall not take more than 30 sec., to fully
charge the closing spring made for automatic charging. Charging of spring by the motor should not interfere with the operation of the breakers.
18.6
The motor shall be adequately rated to carry out a minimum of one duty cycle. Also provision shall be
made to protect the motor against overloads.
18.7
In case of failure of power supply to spring charging motor, the mechanism shall be capable of
performing one open-close-open operation.
18.8
Mechanical interlocks shall be provided in the operating mechanism to prevent discharging of the
closing springs when the breaker is already in closed position. Provision shall be made to prevent a
closing operation to be carried out with the spring partially charged.
18.9
Facility shall be provided for manual charging of closing springs.
19.0
CONTROL CABINET
19.1
The switchgear operating mechanism, the control equipment such switch for closing and tripping the
breakers, various control relays, anti pumping device, timer for adjusting breaker reclosing, a set of terminal
blocks for wiring connections, MCB's for disconnecting the control auxiliary power supplies. Including relays,
etc., shall be enclosed in a cabinet to 'be mounted on a suitable structure at a convenient working height at the
end of the breaker in the outdoor switchyard. The supporting structure and the enclosure shall be capable of
withstanding the typical tropical climatic conditions, change of ambient temperature, severe dust-storms, very
high relative humidity those are prevailing at the site of location of switchgear .
19.2
The enclosure shall be made out of stretched level steel plates not less than 3.15 mm thick and of light
section structural steel. It should be weather proof as well as vermin proof and conforming to IP: 55 degree of
protection.
19.3
Each cabinet section shall have full width and full length hinged doors mounted on the front that swing
fully open. The doors shall be provided with latches to securely hold it with the cabinet. Doors shall be of sturdy
construction, with resilient material covering, to provide dust protection and prevent metal to metal contact
except at the latch points. Filtered ventilation shall be provided along with the rigid supports for control and
other equipment, measuring instruments, mounting cabinet members and equipment shall not restrict easy
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access to terminal blocks for terminating and testing external connection or to equipment for maintenance.
19.4
All screws and bolts used for assembling and mounting wire and cable termination, supports, devices
and other equipment shall be provided with lock washers or other locking devices. All metal parts shall be clean
and free of weld splatter, rust and mill scale prior to application of double coat of zinc chromate primer which
should be followed by an Polyurethane paint to serve as base and binder for tile finishing coat. The exterior of
the cubicle shall be painted matty grey to shade NO.692 of IS-5 or shade No.631 and interior to white shade.
Sufficient quantity of paints shall also be supplied along with the cubicle to restore at site any damage during
transportation. The mounting structure shall be galvanized and shall be as per IS-802-11-1978.
19.5
Suitable heaters shall be mounted in the cabinet to prevent condensation. Heaters shall be controlled
by thermostat ON/OFF switches and fuses shall be provided. Heaters shall be suitable for 240 V AC supply
voltage.
19.6
At least one 20 watts fluorescent tube fixture and lamp holder working on 240V, 50 c/s AC supply shall
be provided in each switchgear control cubicle section and shall be located to provide adequate interior lighting
of the cubicle. Ballasts shall be rated at not less than 0.90 power factor. A single pole 20 Amp. ‗T‘ rated
lighting switch shall be provided for each cubicle, flush-mounted on the left end. One duplex 220 volt
convenience outlet shall be provided inside each door or pair of doors inside each cubicle. The lighting and
convenient outlet circuits shall be completely wired in conduit and terminated on cubicle terminal blocks.
19.7
Unless otherwise specified control wire shall be stranded tinned copper stranded wire with 1.1 KV PVC
insulation conforming to the requirements of IS-1554.
All the control circuit and secondary wiring shall be wired completely and brought out preferably to a vertical terminal
block ready for external connections in the control cabinet. The control wire shall not be of cross-section less
than 2.5 mm2 copper.
19.8
All spare auxiliary contacts of the circuit breaker shall be supplied wired up to terminal block. At least
20 number spare terminals shall be provided over and above the number required. All wiring termination on
terminal blocks shall be made through lugs. For current and DC supply circuits disconnecting sturdy type
terminal blocks will be provided. For other control circuits, non-disconnecting snap on type terminal blocks shall
be provided.
All wires shall be identified with non-metallic sleeve or tube type markers at each terminations.
Terminal blocks shall be made up of molded non-inflammable plastic material with blocks and barriers
molded integrally have white marking strips for circuit identification and moulded plastic covers.
19.9
19.10
A ground bus of copper bar not less than 6 mm by 25 mm shall be provided along the inside of the
front or rear of the each cubicle and equipment rack. The ground bus shall be bolted to the frame of each panel
in such a way as to make good electrical contact with each panel or section. Lugs shall be provided for
connection of the ground bus to the station ground bus/earth mat.
20.0
ACCESSORIES
20.1
Each circuit breaker assembly shall be supplied with the following accessories.
a)
i)
Line and earthing terminals and terminal connectors.
ii)
Control housing with:
One auxiliary switch with adequate number of auxiliary contacts, but not less than 12 nos. (6 No + 6
NC) for each breaker. These shall be over and above the No. of contacts used for closing, tripping and
'reclosing' and interlocking circuit of the circuit breaker. All auxiliary contacts shall be capable of use as
"Normally closed" or "Normally open" contacts. Special auxiliary contacts required for the reclosing
circuit if any, shall also be provided. There shall be provision, to add more auxiliary contacts at a later
date, if required.
b)
Operation counters
c)
Position indicator (Close/Open)
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21.0
d)
Necessary cable glands
e)
Fuses
f)
Manual trip device and local test push buttons
g)
Terminal blocks and wiring for all control equipment and accessories
h)
Adequate number of heaters for continuous operation to prevent moisture condensation in the housing
of operating mechanism
i)
Selector switch for local/remote control.
SUPPORTING STRUCTURE
22.0
21.1
The circuit breakers shall be supplied complete with necessary galvanized steel supporting structures,
foundation and fixing bolts, etc., the galvanizing shall be as per IS. The mounting of the breaker shall
be such as to ensure the safety of the operating staff and should conform to Indian Electricity Rules,
1956. Minimum ground clearance of live part from ground level shall be 4000 mm inclusive of
foundation (300mm above GL).
21.2
The bidder shall submit detailed design calculations and detailed drawings in respect of supporting
structures suitable for the equipment offered. The tenders shall specify the loads which shall be
transmitted to the equipment foundation under most adverse operating conditions of the breaker.
21.3
Facility to earth the circuit breaker structure at two points shall be provided.
GALVANISING
All ferrous parts including all sizes of nuts, bolts, plain and spring washers, support channels, structures, shall; be
hot dip galvanized conforming to latest version of 18:2629 or any other equivalent authoritative standard.
23.0
CABLE TERMINATION
Suitable cable glands for terminating the multi-core cable shall be provided wherever required.
24.0
TERMINAL CONNECTIONSAND EARTH TERMINALS
24.1
25.0
INTERTERLOCKS
25.1
26.0
Each circuit breaker connected with incoming and outgoing feeders shall be provided with solder less
clamp type bimetallic connectors suitable for ACSR/AAAC conductor mentioned in 'Technical
Parameter'
Necessary interlocks to prevent closing or opening of the breaker under low pressure of the contact
spring and devices for initiating alarm shall be provided. Provision shall also be made to enable
electrical interlocking with the isolators associated with the breaker to prevent opening or closing of the
isolators.
TYPE TESTS
26.1
Type test certificates for the following tests, as per IS:13118 or IEC 62271-100 with latest amendment
thereof, from any of the NABL accredited Laboratory shall invariably be furnished
a. Short circuit duties test
b. Short time withstand current and peak withstand current tests
c. Temperature rise test
d. Mechanical endurance test
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e. Lightning impulse voltage withstand test
f. Power Frequency withstand voltage test (dry & wet)
g. Single Capacitor bank switching test
h. Degree of protection IP-55 as per IS:13947:93(Part-I)/IEC 60529:89
27.0
26.2
Type test certificates must accompany drawing of type tested equipment, duly sealed & signed by type
testing authority.
26.3
Type tests conducted on the equipment should not be earlier than 3 years from the date of opening of
bids.
26.4
In case of any change in design/type of breaker already type tested and the one being offered against
this specification, the Employer reserves the right to demand repetition of some or all tests without any
extra-cost at NABL accredited lab.
ACCEPTANCE AND ROUTINE TEST :-
27.1
Employer shall have access at all times to the works and all other places of manufacture where the
Circuit Breakers are being manufactured and the Bidder shall provide all facilities for unrestricted
inspection of the Bidder/manufacturer‘s works, raw materials, manufacture of all the accessories and
for conducting necessary tests as detailed herein. The Employer reserves the right to insist for
witnessing acceptance/routine testing of the bought out items. The Bidder/manufacturer shall submit
the routine test certificates of bought out items and raw material also, at the time of routine testing of
the fully assembled breaker
27.2
No material shall be dispatched from its point of manufacture unless the material has been
satisfactorily inspected and tested.
27.3
Bidders shall indicate the inspections and checks carried out at various stages of manufacture of the
circuit breakers. Complete record of stage inspection would be kept by the Bidder/manufacturer and
this record should be made available for inspection by the representative of the Employer.
Bidder/manufacturer should indicate the manufacturing programme and the Employer will have a right
to depute inspecting officers during the manufacture of the equipment. The Employer reserves the right
to carry out stage inspections at all stages, for which advance intimation shall be given and all
necessary cooperation shall be rendered by the manufacturer.
27.4
At the time of inspection, Bidder/manufacturer shall identify each and every item/accessories of the
particular Circuit Breaker under testing. Unless all the items are identified, the manufacture will not be
treated as complete. Various tests stipulated in IS/IEC shall be performed in the presence of the
Employer‘s engineers or when the inspection waiver has been given, in such a case, testing shall be
done at the manufacturer's works as per IS/IEC stipulations and same should be confirmed by
documentary evidence by way of Test Certificate which shall be got approved by the Employer.
27.5
It is expected that before circuit breaker is finally offered for inspection, internal testing of the same for
various important parameters are already done. Routine test report for such tests shall also
accompany the letter of inspection call so that the Inspecting Officer at the time of inspection may
verify the parameters brought out in the preliminary report. Details of all tests should be clearly brought
out.
27.6
In case for any reason, inspection is not completed or equipment is not found to be complete with all
accessories as per confirmation given with the letter of inspection call, the Employer will reserve the
right to recover complete cost of deputation of inspecting team to the works of the manufacturer.
Acceptance of any quantity of circuit breaker & its accessories shall in no way relieve the successful
bidder of his responsibility for meeting all the requirement of this specification and shall not prevent
subsequent rejection if such equipments are later found to be defective.
27.7
28.0
RATING PLATES & SURFACE FINISH PAINTING & GALVANISING:-
28.1
Each circuit breaker shall be provided with a detailed rating plate. Details on the rating plate shall be as
per ISS and shall also indicate manufacturer name, serial no., order no. and month & year of dispatch.
28.2
All interiors and exteriors of tanks, mechanism, enclosures, cabinets and other metal parts shall be
thoroughly cleaned to remove all rust, scales, corrosion, greases or other adhering foreign matter. All
steel surfaces in contact with insulating oil, as far as accessible, shall be painted with not less than two
coats of heat resistant, oil insoluble, insulating paint.
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29.0
28.3
All metal surfaces exposed to atmosphere shall be given two primer coats of zinc chromate and two
coats of epoxy paint with epoxy base thinner or hot dip galvanized or two packs of aliphatic
polyurethane finished paint. All metal parts not accessible for painting shall be made of corrosion
resistant material. All machine finished or bright surfaces shall be coated with a suitable preventive
compound and suitably wrapped or otherwise protected. Paints shall be carefully selected to withstand
tropical heat and extremes of weather within the limits specified.
28.4
Paint shall not scale off or wrinkle or be removed by abrasion due to normal handling. All external
paintings shall be as per shade no. 697 or any other suitable shade of IS:5 or polyurethane paint
28.5
All ferrous parts & steel structure including all sizes of nuts, bolts, plain and spring washers, support
channels, structures, etc. shall be hot dip galvanized or stainless steel or electro-galvanized.
DOCUMENTATION:
29.1
List of Drawings and Documents: Bidders shall furnish four sets of relevant descriptive and illustrative
published literature, pamphlets and following drawings for preliminary study;
(a) General outline drawings showing dimensions and shipping weights.
(b) Sectional views showing the general constructional features of the circuit breaker including operating
mechanism, arcing chambers, contacts with lifting dimensions formaintenance.
(c) All drawings & data typical and recommended schematic diagram for control
supervision& reclosing shall be annotated in English. .
(d) Schematic diagrams of breaker offered for control supervision and reclosing.
(e) Structural drawing, design calculations and loading data for support structures.
(f) Short circuit oscillogram& certificates for similar type tested breakers. General
arrangement of foundation and structure mounting plan including weights of varnish
components and impact loading data for foundation design.
(g) Type test reports.
29.2
29.3
30.0
Successful bidders shall, within two weeks of placement of order, submit four sets of final version of all
the above drawings for the Employer's approval. The Employer shall communicate his
comments/approval on the drawings to the Bidder/manufacturer within two weeks.
Bidder/manufacturer shall, if necessary, modify the drawings and resubmit four copies of the modified
drawings for the Employer's approval within two weeks from the date of comments. After receipt of the
Employer's approval, the Bidder/manufacturer shall, within three weeks, submit 4 prints per breaker
and two set of good qualities reproducible of the approved drawings for the Employer's use.
Successful bidders shall also furnish two sets each of bound manuals covering erection,
commissioning, operation and maintenance instructions and all relevant information and drawings
pertaining to the main equipment as well as auxiliary devices along with each breaker. Marked erection
drawings shall identify the component parts of the equipment as shipped to enable erection by the
Employer‘s own personnel. Each manual shall also contain one set of all the approved drawings, type
test reports as well as acceptance reports of the corresponding consignment dispatched.
29.4
Manufacturing of equipments shall be strictly in accordance with the approved drawings and no
deviation shall be permitted without the written approval of the Employer.
29.5
Approval of drawings/work by the Employer shall not relieve the bidders of any of his responsibility and
liability for ensuring correctness and correct interpretation of the drawings for meeting the requirements
of the latest revision of the applicable standards rules and codes of practices. Equipment shall conform
in all respects to high standards of engineering, design, workmanship and latest revisions of relevant
standards at the time of supply and the Employer reserves the right to reject any equipment or material
which, in his judgment, is not in full accordance therewith.
PACKING AND FORWARDING:
30.1
Equipment shall be prepared for ocean shipment (foreign equipment) or rail road transport (local
equipment). Equipment shall be packed in suitable crates in such a manner to protect it from damage
and withstand handling during transit. Bidder/manufacturer shall be responsible for and make good at
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his own expense any or all damage to the equipment during transit, due to improper and inadequate
packing and handling. Easily damageable materials shall be carefully packed and marked with the
appropriate caution symbols. Wherever necessary, proper arrangement for lifting such as lifting hooks
etc. shall be provided. Any material found short inside the packing cases shall be supplied by the
Bidder/manufacturer without any extra cost. Each consignment shall be accompanied by a detailed
packing list containing the following information:
(a) Name of the consignee.
(b) Details of consignment.
(c) Destination.
(d) Total weight of consignment.
(e) Sign showing upper/lower side of the crate.
(f) Handling and unpacking instructions.
(g) Bill of material indicating contents of each package and spare material.
31.0
COMPLETENESS OF EQUIPMENT AND BOUGHT OUT ITEMS:
31.1
32.0
GUARANTEEDTECHNICAL PARTICULARS:
32.1 It is obligatory on the part of bidders to furnish Guaranteed Technical Particulars enclosed with the bid
document duly filled in complete in all respects. In case Guaranteed Technical Particulars duly filled in
complete in all respects is not furnished, the bid may be treated as non-responsive.
32.2
SN
Bidders must furnish following information along with technical bid. A list of all the accessories which
will be supplied with the breakers should be furnished. While furnishing the list of accessories, items
which will be manufactured by the Bidders and balance items, which will be procured from subBidder/manufacturers should be clearly identified and stipulated in the bid.
The salient technical particulars of the VCB should be as follows:
Type of Circuit Breaker
Vacuum ,Outdoor
1.
Standards Applicable
IEC 62271-100 & IS 13118
2.
Nominal System Voltage (KVrms)
33 kV
3.
4.
Highest system voltage
Rated continuous current at design temperature of 50 deg.C (Amps)
36kV
1250A
5.
Rated Frequency (Hz)
50
6.
Design ambient temperature
50 deg
7.
8.
Maximum temperature rise for main contacts over desugn ambient temperature
of 50 deg.C
Short time current rating (kA)
25 kA for 3 sec
9.
Rated Operating Duty
0-0.3 sec-CO-3 min-CO
10.
Operating Mechanism
11.
12.
a) Type of operating mechanism for
i) Closing
ii) Opening
Dielectric withstand voltage
40 deg.C
Spring Charging
Spring Charging
i) One minute dry & wet power frequency withstand voltage
13.
a) Between live terminal and ground (kVrms)
70
b) Between terminals with breaker contacts open (kVp)
70
ii) 1.2/50 micro second impulse withstand test voltage
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a) Between live terminal and ground (kVp)
b) Between terminals with breaker contacts open (kVp)
170
170
16 TECHNICAL SPECIFICATION FOR33 KV CONTROL AND RELAY PANEL FOR FEEDERS
1.0 SCOPE
1.1. This specification provides for design, engineering, manufacture, assembly, shop testing, inspection and
testing at works, transport to site, insurance, storage, erection and commissioning of Control, Relay, Alarm
and Annunciation Panels for 33/11 KV, Substations.
1.2. It is not the intent to specify completely herein all details of the design and construction of equipments.
However, the equipment shall conform in all respects to high standards of engineering, design and
workmanship and shall be capable of performing in continuous commercial operation acceptable to the
purchaser, who will interpret in a manner the meanings of drawings and specifications and shall have the
power to reject any material which in his judgment is not in accordance therewith. The equipment offered
shall be complete with all components necessary for its effective and trouble free operation. Such
components shall be deemed to be within the scope of Bidder's supply, irrespective of whether these are
specifically brought out in this specification and/or the commercial order or not.
1.3. It may be noted that the Control & Relay Panels must meet the following minimum criteria. Failure to
comply with the requirements may results in rejection of the BID as non-responsive:
1.3.1. The Manufacturer must have designed, manufactured, type tested and supplied Control 7 Relay Panels
in at least two power utilities of similar rating which are in successful operation for at least 5 (Five) years
as on the date of bid opening. Which should be substantiated by furnishing performance report by the
official of the rank of minimum DGM/SE
2.0 STANDARDS
All equipment provided under this specification shall in general conform to the latest revision/amendment etc. of the
following:
Sl
Standard
Title
IS: 3231, IEC
Electrical relays for power system protection.
N
o
.
1
255 PartI to III,
BS: 89
2
IS: 1248; IS:
Indicating instruments
2419;
BS: 89
3
IS-13010; IS:
Energy meters
722(Part
-I to IX)
IEC 521; BS
3T
4
IS: 4237
General requirement of switchgear and
control gear for voltages not exceeding
1 KV
5
IS: 375
Marking
arrangement
for
switchgear,
busbars, main connection & auxiliary
wiring.
6
IS:
8686,
IEC-255
Part
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Specification for static protective relays and
tests
V
Page 83 of 123
&VI
IEC 801-4
7
IEC
337;
IEC:
Control switches ( LV switching devices for
control and auxiliary circuits)
337-1;
IS: 6875
8.
IS: 2516
MCCB sand load break switches having a
break capacity of 30 KVA rms at 415 V.
9
IS: 4047
Fuse switching units
10
IS: 2208
HRC fuse links
11
IS:
Current transformers
2705;
IEC-185
12
IS:
3156;
Potential transformers
IEC: 186
13
IS: 8623
Factory built assemblies of switchgear &
control gear for voltages upto& including
1000V AC &1200 V DC
14
IEC: 439
Low voltage switchgear and control gear
assemblies
15
IS: 4237
General requirement of switchgear & control
gear for voltages not exceeding 1000V
16
IS: 2147
Degree of protection provided by enclosures
for low voltage switchgear and control
gear
17
IS: 5028
Aluminum alloy bars
18
IS: 1897
Copper strips for electrical purpose
19
IS: 3618; IS :
6005
Code of practice for phosphate
20
IS: 4064
Air break switches, air break disconnectors,
air
break
combination
disconnectors&
units for
fuse
voltages
not
exceeding 1000 V AC or 1200 V DC.
21
IS: 9224 Part
HRC cartridge fuses
II
22
IS: 5578
Guide for making of insulated conductors
23
IS: 2032
Graphical symbols
Ref-abbreviations
Name and Address
24
IEC
Institution Electro Technical Bureau. Central
dale commission Electro Technique
International.
1. Rue de vermbe Geneva Switzerland
25
ISO
International
Organization
standardization.
Danish
for
Board
of
Standardization..DanishStandardizating
Sruat Aurehoeqvaj-12 DK- 2990, Heel
prup Denmark
26
IS
Bureau
of
Indian
ManakBhawan
Standard
9,
Standards
Bahadur
Shah
ZafarMarg, New Delhi- 110 002, India.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 84 of 123
2.1. Equipment meeting with the requirements of other authoritative Standards, which ensure equal or better
performance than the standards mentioned above, shall also be considered. When the equipment offered
by the Bidder conforms to other standards, salient points of difference between standards adopted and the
standard specified in this specification shall be clearly brought out in the relevant schedule. Four copies of
such standards with authentic translation in English shall be furnished along with the offer.
3.0 CLIMATIC CONDITIONS
3.1. The climatic and isoceraunic conditions at site under which the equipments shall operate satisfactorily
under the tropical conditions specified in this bidding documents.
3.2. The reference ambient temperature assumed for the purpose of this specification are as follows:
i. Maximum ambient temperature
: 40° C
ii. Maximum average daily ambient temperature
: 35° C
iii. Maximum average yearly ambient temperature
: 30° C
4.0 PRINCIPAL PARAMETERS
4.1. The details of Current Transformer are given below:
1
2
3
5 P 20
PS
20 VA
----
Min. Vk = 100 V
Max. Im= 0.03 A
accuracy0.5, Instrument
15 VA
-----security factor < 5
33 KV side Feeder CTs Ratio: 400-200/5-5 A
O/L &
----E/F Protection
Transformer
differential
protection
Metering
5.0 Drawing, Manuals, Literatures etc.
5.1. The tenderer shall furnish along with his tender fully dimensioned drawings of the equipments offered,
along with illustrated and descriptive literatures, for various component parts like relays, meters, control
switches etc. to enable the purchaser for proper evaluation of the offer. The tenders shall also be
accompanied with the schematic drawings showing protection, indicating metering schemes etc
5.2. Soon after the award of the contract and before proceeding with the manufacturing works, the successful
tenderer shall furnish drawings in quadruplicate which shall include but not limited to the followings for
approval of the purchaser:
i)
Principal layout drawings for the Boards showing the equipments on the panels with dimensions.
A list of the equipments mounted on each panel shall be prepared and tabulated in the same drawings.
The drawings shall also show the constructional details, foundation details indicating foundation bolts,
cable entries etc.
ii)
Elementary control drawings and other schematics for the equipments furnished, including
protection, metering, annunciating and indicating circuit, breaker control ,circuits etc. All wires terminals
shall be clearly marked and numbered as per general practice.
iii)
Single line and three line diagrams showing all AC and D.C power connections and all secondary
connectors for relays, meters etc.
iv)
Internal wiring diagrams of all the panels and boards giving internal wiring connections for all the
equipments in the panels. The drawings shall also clearly indicate the connections to be made at site
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 85 of 123
or to the external equipments or between boards etc. with wires terminals marked properly.
v)
After approval of the drawings the tenderer shall furnish six copies of the each of the final
drawings along with the literatures, instruction manuals etc. for purchaser's reference.
5.3. In addition to the above the successful bidders shall supply three sets each of the following relevant
equipments supplied to each substation:
a. All final drawings mentioned above.
b. Literature describing construction, operation, adjustment, testing, calibration, maintenance of all
protective and auxiliary relays, instruments, control switches etc.
c. List of spare parts giving identification numbers of the parts.
6.0 GENERAL TECHNICAL REQUIREMENT
6.1.
Control & Relay panels: Detailed Description
The control and relay panels shall be of Simplex type. Each Simplex panel shall consist of a vertical front panel with
equipment mounted thereon and having wiring access from the rear. It shall have double leaf door with lift off
hinges at the back for panels of width more than 800 mm. Doors shall have handles with built-in locking facility.
7.0 Constructional Features
7.1. Panels shall be completely metal enclosed and shall be dust, moisture and vermin proof. The enclosure
shall provide a degree of protection not less than IP-51 in accordance with IS:2147.
7.2. Panels shall be free standing, floor mounting type and shall comprise structural frames enclosed
completely with specially selected smooth finished, cold rolled sheet steel ofthickness not less than 3
mm for weight bearing members of the panels such as bass frame, front sheet and door frames,
and 2.0 mm for sides, door top and bottom portions. There shall be sufficient reinforcement' to provide
level Surface resistance to vibration and rigidity during transportation and installation.
7.3. All doors, removable covers and panels shall be gaskets all around with neoprene gaskets. Ventilation
louvers to be provided having screens and filters. The screens shall be made of brass wire mesh.
7.4. Design, materials selection and workmanship shall be such as to result in neat appearance inside and
outside with no welds, rivets or bolt head apparent from outside, with all exterior surfaces true and smooth.
7.5. All necessary anchor bolts and other materials required for foundation of panels shall be supplied
7.6. Cable entries to the panel shall be from the bottom. The plates of the panel shall be fitted with removable
gland plates for fixing the cable glands. Necessary number of cable glands of sizes to suit owner's external
cables to the panels shall be supplied by the bidder. Cable glands shall be screwed type, and shall be
suitable for PVC cables. Cable gland plate fitted in the bottom of the panel shall be connected to the
earthing Panel / Station through a flexible braided copper conductor rigidly.
7.7. Relay panels of modern, modular construction would also be acceptable.
7.8. The total height of the panel shall be 2250 mm. The depth of the panel shall be 600 mm. The panels
shall have suitable width required for mounting of all the equipments on the front panel.
7.9. The panels shall match with the existing panels in APDCL substations, the details of which will be
furnished to the successful bidder. Matching includes height , depth of the panels, colour matching and
mimic matching' and arrangement of equipment on the front.
8.0 Mounting
8.1. All equipment on and in panels shall be mounted and completely wired to the terminal blocks ready for
external connection. The equipment on front of panel shall be mounted flush.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
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8.2. Equipment shall be mounted such that removal and replacement can be accomplished individually without
interruption of service to adjacent devices and are readily accessible without use of special tools. Terminal
marking shall be clearly visible.
8.3. The contractor shall carry out cutouts, mounting and wiring of the free issue items supplied by others, if
any which are to be mounted in this panel in accordance with the corresponding equipment manufacturer's
drawings. Cutouts if any, provided for future mounting of equipment shall be properly blanked off.
8.4. The center lines of switches, push buttons and indicating lamps shall be not less than 750 mm from the
bottom of the panel. The center lines of relays, meters and recorders shall be not less than 450 mm from
the bottom of the panel.
8.5. The center lines of switches, push buttons and indicating lamps shall be matched to give a neat and
uniform appearance. Likewise the top lines of all meters, relays and recorders etc., shall be matched.
8.6. No equipment shall be mounted on the doors.
8.7. All the equipment connections and cabling shall be designed and arranged to minimize the risk of fire and
damage which may be caused by fire.
9.0 Panel Internal Wiring and Other Accessory Equipment
9.1. Panels shall be supplied completely. with interconnecting wiring provided between all electrical devices
mounted and wired in the panels and between the devices and terminal blocks for the devices to be
connected to equipment outside the panels. When panels are arranged to be located adjacent to each
other all inter panel wiring and connections between the panels shall be furnished and the wiring shall be
carried out internally. These adjacent inter panel wiring shall be clearly indicated in the drawing furnished
by the contractor.
9.2.
All wiring shall be carried out with 1100 V grade, single core, stranded copper conductor wires with
PVC insulation and shall be heat resistant grade and vermin and rodent proof. The minimum size of the
stranded copper conductor used for internal wiring shall be as follows:
i) All circuits except current transformer and potential transformer circuits one multi strand 2.5
Sq. mm per lead
ii) Current transformer circuit : one 4.0 Sq. mm per lead. The minimum number of strands per
conductor shall be three.
9.3. All internal wiring shall be securely supported, neatly arranged, readily accessible and connected to
equipment terminals and terminal blocks. Wiring gutters and troughs shall be used for this purpose.
9.4. Auxiliary bus wiring for AC and DC supplies, voltage transformer circuits, annunciation circuits and other
common services shall be provided near the top of the panels running throughout the entire length of the
panels.
9.5. Wire termination shall be made with solder less crimping type and tinned copper ring type lugs which firmly
grip the conductor and insulation. Insulted sleeves shall be provided at all the wire terminations. Engraved
core identification plastic ferrules marked to correspond with panel wiring diagram shall be fitted at both
ends of each wire. Ferrules shall fit tightly on the wire and shall not fall off when the wire is disconnected
from terminal blocks
9.6. All wires directly connected to trip circuit of breaker or device shall be distinguished by the addition or red
coloured unlettered ferrule. Number 6 and 9 shall not be included for ferrule purposes.
9.7. Longitudinal troughs extending throughout the full length of the panel shall be preferred for inter panel
wiring. Interconnections to adjacent panel shall be brought out to a separate set of terminal blocks located
near the slots or holes meant for taking the inter connecting wires. Arrangements shall permit easy inter
connections to adjacent panels at site and wires for this purposes shall be provided by contractor looped
and bunched properly inside the panel.
9.8. The Successful bidder shall be solely responsible for the completeness and correctness of the internal
wiring and for the proper functioning of the connected equipment.
10.0Terminal Blocks
10.1. All internal wiring to be connected to the external equipment shall terminate on terminal blocks preferably
vertically mounted on the side of each panel. Terminal blocks shall be 1100 V grade and have 10 amps
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 87 of 123
continuous rating ,complete with insulated barriers, stud type terminals, washers, nuts and lock nuts.
Terminal block design shall include a white fibre markings strip with clear plastic slip-on terminal covers.
Markings on the terminal strips shall correspond to wire number and terminal numbers on the wiring
diagrams.
10.2. Terminal blocks for current transformer and voltage transformer secondary leads shall be provided with
test links and isolating facilities. Also current transformer secondary leads shall be provided with short-circuiting and earthing facilities.
10.3. At- least 20 % spare terminals shall be provided on each panel and these spare terminals shall be
uniformly distributed on all terminal blocks.
10.4. Unless otherwise specified. terminal blocks shall be suitable for connecting the following conductors of
purchasers cable on each side
i.
All circuits except current and potential transformer circuits : minimum of one of 2.5 sq.mm
copper.
ii.
All CT and PT circuits: minimum of two of 4.0 mm square copper.
10.5. There shall be a minimum clearance of 250 mm between the first row of terminal blocks and associated
cable gland plate. Also the clearance between two rows of terminal blocks shall be minimum, of 150 mm.
10.6. Arrangement of the terminal block assembles and the wiring channel within the enclosure shall be such
that a row of terminal blocks is run parallel and in close proximity along each side of wiring duct to provide
for convenient attachment of internal panel wiring. The side of the terminal block opposite the wiring duct
shall be reserved for purchaser's external cable connection. An adjacent terminal block shall also share
this fired wiring corridor. A steel strip shall be connected between adjacent terminal block rows at 450 mm
intervals for support of incoming cables.
10.7. The number and sizes of the Purchaser's multi-core incoming cable will be furnished to the Contractor
after placement of the order. All necessary cable terminating accessories such as gland plates, packing
glands, crimp type tinned copper lugs supporting clamps .and brackets, wiring troughs and gutters etc., for
purchaser's cable shall be included in contractor's scope of supply.
11.0
Painting
11.1. All sheet steel work shall be phosphated, in accordance with the 18:6005 "Code of Practice for
phosphating iron and steel". Oil, grease, dirt and sweat shall be thoroughly removed by emulsion
cleaning. Rust and scale shall be removed by picking with dilute acid followed by washing with running
water rinsing with a slightly alkaline hot water and drying.
11.2. After phosphating thorough rinsing shall be carried out with clear water followed by final rinsing with dilute
dichromate solution and oven drying. The phosphate coating shall be sealed with application of two coats
of ready mixed, stoved type zinc chromate primer. The first coat may be "flash dried" while the second
coat shall be stoved .
11.3. After application of the primer, two coats of finishing synthetic enamel paint shall be applied, each coat
followed by stoving. The second finishing coat shall be applied after completion of tests. The exterior
Colour of the paint shall be selected by the purchaser at a later date.
11.4. Each coat of primer and finished paint shall be of a slightly different shade to enable inspection of the
painting. The powder coat paint shade should Air Craft Grey (IS : 5) and thickness of 50-60 microns.
A small quantity of finished paint shall be supplied for minor touching up required at site after installation of
the panels.
11.5. In case the bidder proposes to follow any other established painting procedure like electrostatic painting,
the procedure shall be submitted along with offer/bid for purchaser's review and approval.
12.0
Mimic Diagram
12.1. Coloured mimic diagram and symbols showing the exact representation of the system shall be provided in
the front of control panels.
12.2. Mimic diagram shall be made preferably of anodized aluminum or plastic of approved fast Colour material
which shall be screwed on to the panel and can be easily cleaned. Painted overlaid mimic is also
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 88 of 123
acceptable. The mimic bus shall be 2 mm thick. The width of the mimic bus shall be 10 mm for bus bars
and 7 mm for other connections.
12.3. Mimic bus Colour will be decided by the Purchaser and shall be obtained from the Purchaser by the
successful Bidder.
12.4. When semaphore indicators are used for isolator position they shall be so mounted in the mimic that the
isolator closed position shall complete the continuity of mimic.
12.5. Indicating lamp, one for each phase for each bus shall be provided on the mimic to indicate bus charged
condition.
13.0
Name Plates and Markings
13.1. All equipment mounted on front and rear side as well as equipment mounted inside the panels shall be
provided with individual nameplates with equipment designation engraved. Also on the top of each panel,
on front as well as rear side, large and bold nameplates shall be provided for circuit/feeder designation.
13.2. AlI front mounted equipment shall be also provided at the rear with individual name plates engraved with
tap numbers corresponding to the one shown in the panel internal wiring to facilitate easy tracing of the
wiring. The nameplates shall be mounted directly by the side of the respective equipment in a visible
manner and shall not be hidden by the equipment wiring.
13.3. Nameplates shall be made of non-rusting metal or any other suitable material. Nameplates shall be black
with white engraving lettering. The nameplates inscription and size of nameplates and letters shall be
submitted to the purchaser for approval.
13.4. Each instrument and meter shall be prominently marked with the quantity measured e.g. kV, A, MW, etc.
All relays and other devices shall be clearly marked with manufacturer's name, manufacturer's type, serial
number and electrical rating data.
13.5. Each switch shall bear clear inscription, identifying its function e.g. "BREAKER" ,"52 A‘‘, "AMMETER" etc.
Similar inscriptions shall also be provided on each device whose function is not otherwise identified. If any
switch device does not bear this inscription separate name plate giving its function shall be provided for it.
Switch shall also have clear inscription for each position indicating e.g. "TRIP-NEUTRAL-CLOSE", "ONOFF", "R-Y-B-N:-OFF", etc.
14.0
Miscellaneous Accessories and Supporting Steel
14.1. Plug point- An AC 240 Volts, single phase, 5A, 50 HZ AC plug point shall be provided in the interior of
each cubicle with "ON-OFF" Switch for connection of hand lamps.
14.2. Interior lighting: Each panel shall be provided with a CFL lighting fixture rated for 240 volts, single phase,
50 HZ supply for the interior illumination of the panel during maintenance. The fittings shall be complete
with switch fuse unit and switching of the lighting shall be controlled by the respective panel door switch.
14.3. One DC emergency lamp is to be fitted and should be complete with switch fuse unit.
14.4. Each control panel shall be provided with necessary arrangements for receiving, distributing, isolating and
fusing of DC and AC supplies for various control signaling, lighting and space heater circuits. MCBs for the
incoming circuits and fuses for sub-circuits shall be provided. Selection of the main and sub-circuit fuse
rating shall be such as to ensure selective clearance of sub-circuit faults. Potential circuit for relaying and
metering shall be protected by fuses. All fuses shall be HRC cartridge type conforming to IS : 2208
mounted on plug-in type fuse bases. All accessible live connection to fuse bases shall be adequately
shrouded. Fuses shall have operation indicators for indicating blown fuse condition. Fuse carrier base
shall have imprints of the fuse rating and voltage.
14.5. Supporting Steel: All necessary foundation anchor bolts and other parts of supporting and fastenings, of
the panels shall be supplied by the contractor.
15.0
Earthing
15.1. All panels shall be equipped with an earth bus securely screwed. Location of earth bus shall ensure no
radiation interference for earth systems under various switching conditions of isolators and breakers. The
material and the sizes of the bus bar shall be at least 25 x 6 mm copper flat.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 89 of 123
15.2. When several panels are mounted adjoining each other, the earth bus shall be made continuous and
necessary connectors and clamps for this purpose shall be included in the scope of supply of contractor.
Provision shall be made for extending the earth bus bars to future adjoining panels on either side.
15.3. Provision shall be made on each earth bus bars of the end panels for connecting purchaser's earthing
grid. Necessary terminal clamps and connectors for this purpose shall be included in the scope of supply
of contractor. The wire or screens should be clearly bonded and earthed at the gland plate.
15.4. All metallic cases of relays, instruments and panel mounted equipment shall be connected to the earth bus
preferably by independent copper wires of size not less than 2.5 Sq.mm. The colour code of earthing wires
shall be green. Earthing wire shall be connected on terminals with suitable clamp connectors and
soldering shall not be permitted.
15.5. Looping of earth connections which would result in loss of earth connection to other devices where the
loop is broken shall not be permitted. However, looping of earth connections between equipment to
provide alternative paths to earth bus shall be provided.
15.6. VT and CT secondary neutral or common lead shall be earthed at one place only at the terminal blocks
where they enter the panel. Such earthing shall be made through links so that earthing may be removed
from one group without disturbing continuity of earthing system for other groups.
16.0Metering Instruments: Instruments and Meters
16.1. All instruments, meters, recorders and transducers shall be enclosed in dust proof, moisture resistant,
black finished cases and shall be suitable for tropical use. They shall be calibrated to read directly the
primary quantities. They shall be accurately adjusted and calibrated at works and shall have means of
calibration, check and adjustment at site. All accessories including test switches and test plugs, where
applicable shall be furnished. Their elements shall be shock resistant and shielded from external magnetic
fields.
16.2.
. Ammeters:
16.2.1. All ammeters shall be of digital type and provided with direct reading triple range scale. Scale value of
ammeters shall be equal to 1 to 1.3 times the rated primary current of the associated current transformer
feeding it. The rated current shall be 5.0 Amp. Accurate reading of ammeter shall be possible at the
lowest limit of 5 % of the rated current. Accuracy class 1.0 or better as per IS: 1248
16.3.
Voltmeter:
16.3.1. All voltmeters shall be of digital type direct reading scale. The maximum scale value of voltmeters shall
be 50% in excess of the primary voltage of the associated PTs. The rated voltage of the voltmeter shall
be 110 volts A.C., accuracy class 1.0 or better as per IS: 1248.
16.4.
Watt meters
16.4.1. Digital watt meters wherever specified shall be 3 phase, 4 wire three element type provided with direct
reading scales. The scale values of wattmeter shall be as per ratio of the measuring cores of respective
CTs and PTs. The current coils shall be rated for 5/1 ampere and voltage coils for 110 volt continuous.
The wattmeters shall be suitable for circuits with unbalanced loads to be usually met with in commercial
service. Accuracy class will be 1.0 or better as per IS: 1248.
16.5. Energy Meters :
16.5.1. Energy meters shall be static type conforming to IEC 687 and suitable for bi-directional power flow.
The static meter shall measure active and reactive energy both import and export, by 3 phases 4 wire
principle suitable for ba1anced / unbalanced 3 phase load. Accuracy of meter shall. be 0.5for active
energy and 0.5 for reactive energy. The active and reactive energy shall be directly computed in CT & VT
primary values and stored in four different registers as MWH (E), MWH(I), MVARH (E) and MVARH (I)
along with a plus sign for export and minus sign for import. CT secondary is 5 A the appropriate ratios of
meters shall compute the energy sent out/received, from/to the station bus bar during each successive 15
minute block and store in the respective registers. Meter shall display on demand the energy sent out!
received during the previous 15 minute block. Further the meter shall continuously integrate the energy
readings of each register upto that time. All these readings shall be displayed on demand. Cumulative
reading of each register ·shall be stored in non-volatile memory at the end of each hour of day starting
from 01 hours. These readings shall be stored for a period of 40 days before being erased. The static
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 90 of 123
meter shall have built in clock and calendar having an accuracy of 1 minute per month or better. Date /
time shall be displayed on demand.
16.5.2. Each meter shall have a unique identification code provided by purchaser and shall be marked
permanently on the front and also on the non-volatile memory. The voltage monitoring of all the three
voltages shall be provided.
16.5.3. The meter shall normally operate with power drawn from VT supplies. Power supply to the meter shall
be healthy even with a single phase VT supply. An automatic back up shall be provided by a built in life
time battery and shall not need replacement for at least ten years with a continuous VT interruption of
even two years. Date and time of VT interruption and restoration shall be automatically stored in nonvolatile memory.
16.5.4. The meter shall have an optical port at the front of the meter for data collection by a hand held device.
The meter shall have means to test MWH accuracy and for connecting it to time of day tariff equipment.
16.5.5. The meter should have optical port for local communication. RS 232 and RS 485 port should be
incorporated along with Ethernet port.
16.5.6. The bidder is to provide the software for meter for downloading and up loading to base computer along
with one hand held common meter reading instrument along with software.
16.5.7. The meter should preferably be either Secure or L & T make as per APDCL‟s specification.
17.0
RELAYS:
17.1. All relays shall conform to the requirements of IS:3231 or other applicable approved standards. Relays
shall be suitable for flush or semi flush mounting on the front with connections from the rear. Relays shall
be rectangular in shape and shall have dust tight, dull' black or egg shall black enamel painted cases with
transparent cover removable from the front.
17.2. All protective relays shall be in draw out or plug-in type / modular cases with proper testing facilities. The
testing facilities provided on the relays shall be specifically stated in the bid. Necessary test plugs shall be
supplied loose and shall be included in Contractor's scope of supply. Test block and switches shall be
located immediately below each relay for testing. As an alternative to test block and test plug
arrangements the Bidder shall also quote alternative testing facility of protective relays by providing a push
button which when pressed connects the testing equipment to the relay coils and injects current in the coil
and automatically disconnects the trip circuits and on operation of relay gives a signal that the equipment
and the circuits are correct.
17.3. The purchaser reserves the right for accepting anyone of the above two testing facilities. Unless otherwise
specified all auxiliary relays and timers shall be supplied in non-draw out cases/plug in type modular
cases.
17.4. All AC relays shall be suitable for operation at 50 Hz AC Voltage operated relays shall be suitable for 110
Volts VT secondaries and current operated relays for 5 Amp CT secondaries as specified in this
specification. DC auxiliary relays and timers shall be designed for 110 V DC voltage and shall operate
satisfactorily between 70 % and 110% of rated voltage. Voltage operated relays shall have adequate
thermal capacity for continuous operation.
17.5. The protective relays shall be suitable for efficient and reliable operation of the protection scheme
described in the specification. Necessary auxiliary relays and timers required for interlocking schemes for
multiplying of contacts/suiting contact duties of protective relays and monitoring of control supplies and
circuits, lockout relay monitoring of circuits etc., and also required for the complete protection schemes
described in the specification shall be provided.
17.6. All protective relays shall be provided with at least two pairs of potential free isolated output contacts.
Auxiliary relays and timers shall have pairs of contacts as required to complete the scheme. Contacts shall
be silver faced with spring action. Relay cases shall have adequate number of terminals for making
potential free external connections to the relay coils and contacts including spare contacts. Relay case
size shall be so chosen as not to introduce any limitations on the use of available contacts on the relay
due to in-adequacy of terminals. Paralleling of contacts, if any, shall be done at the terminals on the casing
of the relay.
17.7. All protective relays, auxiliary relays and timers except the lock out relays and interlocking relays specified
shall be provided with self-reset type contacts. All protective relays and timers shall be provided with
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 91 of 123
externally hand reset positive action operation indicators, provided with inscription, subject to purchaser's
approval. All protective relays which do not have built in hand reset operation indicators shall have
additional auxiliary relays with operating indicators for this purpose. Similar separate operating indicator
(auxiliary relays) shall also be provided in the trip circuits of protections located outside the board such as
bucholz relays, temperature protection, fire protection. etc.,
17.8. Timers shall be done of the electromagnetic or solid state type. Pneumatic timers are not acceptable.
Short time delays in terms of milliseconds may be obtained by using copper slugs on auxiliary relays. In
such case it shall be ensured that the continuous rating of the relay is not affected. Time delay in terms of
milliseconds obtained by the external capacitor resistor combination is not acceptable.
17.9. No control relay which shall trip the power circuit breaker when the relay is de-energized shall be
employed in the circuits.
17.10. Provision shall be made for easy isolation of trip circuits of each relay for the purpose of testing and
maintenance.
17.11.
All relays shall withstand a test voltage 2.5 kVrms voltage,50Hz for one second.
17.12. Auxiliary seal-in-units provided on the protective relays shall preferably be of shunt reinforcement type.
If series relays are used the following, shall be strictly ensured:
i.
The operating time of the series seal-in-unit shall be sufficiently shorter than that of the trip coil or trip
relay in series with which it operates to ensure definite operation of the flag indicator of the relay.
ii. Seal-in-unit shall obtain adequate current for operation when one or more relays operate
simultaneously.
iii. Impedance of the seal-in-unit shall be small enough to permit satisfactory operation of the trip coil on
trip relays when the DC supply voltage is minimum.
17.13. All protective relays and alarm relays shall be provided with one extra isolated pair of contacts wired to
terminals exclusively for purchaser's use.
17.14.
For numeric relays the following requirements shall be met with :
17.14.1. Numerical relay shall have both RS 485 and RS 232 communication ports. And ten numbers digital
IO. Relay software is required.
17.14.2. The numerical relays shall be completely numerical with protection elements realized using software
algorithm.
17.14.3. The relay should have high immunity to electrical and electromagnetic interference. Relay should
confirm to following mandatory type test for safe operation of relay :
a.
b.
c.
d.
e.
High frequency disturbance test as per IEC 610 – 4-1
Fast transient disturbance test as per IEC 61000 – 4-4
Electrostatic discharge as per IEC 61000 – 4-2
Radio frequency interference as per ANSI C 37.90.2
Impulse test as per IEC 6100 – 4-3
18.0 Annunciation System:
18.1. Alarm annunciation system shall be provided for the control board by means of visual and audible alarm in
order to draw the attention of the operator to the abnormal operating conditions or the operation of some
protective devices. The annunciation equipment shall be suitable for operation with 110 V DC voltage.
18.2. The visual annunciation shall be provided by annunciation facia, mounted flush on the top of the panels.
The audible alarm shall be provided by alarm buzzer and bell for trip and non-trip alarm respectively.
18.3. The annunciator fascia shall be provided with translucent plastic window for alarm point with minimum size
of 35 mm x 50 mm. The facia plates shall be engraved in black lettering with respective inscriptions which
will be furnished to the Bidder by the purchaser.
Alarm inscriptions shall be engraved on each window in not more than three lines and size of the let6tering shall
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 92 of 123
not be less than 5 mm.
18.4. Each annunciation window shall be provided with two white lamps in parallel to provide safety against
lamp failure. Long life lamps shall be used. The lamp circuit shall include series resistor of adequate rating.
The cover plate of the facia windows shall be flush with the panel and shall be capable of easy removal to
facilitate replacement of lamps. The transparency of cover plates and wattage of the lamps provided in the
facia windows shall be adequate to ensure clears visibility of the inscriptions in the control room having
high illumination intensity (500 lux) from the location of the operator's desk.
18.5. TRIP AND NONTRIP facia shall be differentiated. All TRIP facia shall have red colour and all NONTRIP
facia shall have white colour.
Sl. No.
Alarm condition
Fault contact
Visual Annunciation
Audible
Annunciation
1
2
Normal
Abnormal
3
Acknowledge push button
4
Reset
is pressed
push
button
is
Open
Off
Off
Close
Flashing
on
Close
Steady on
Off
open
Steady on
Off
Close
On
Off
Open
Steady on
Off
pressed
5
Lamp test push button
pressed
18.6. Visual and audible annunciation for the failure of DC supply to the annunciation system shall also be
provided and this annunciation shall operate on 240 volts AC supply with separate fuses. On failure of the
power supply to the annunciation system for more than 3 seconds (adjustable setting) an indicating lamp
shall light up and a bell shall sound. A separate push button shall be provided for cancellation of this
audible alarm alone but the indicating lamp shall remain steadily lighted till the supply to the annunciation
system is restored. The sound of the audible alarm (bell) provided for this annunciation shall be different
from the audible alarm provided for this annunciation system.
18.7. A separate voltage check relay shall be provided to monitor the failure of supply (240 V AC) to the scheme
mentioned above. If the failure of supply exists for more than 2 to 3 seconds, this relay shall initiate visual
and audible annunciation. The annunciation system described above shall meet the following additional
requirements.
18.8. The annunciation system shall be capable of catering to all simultaneous signals at a time.
i)
One self resetting push button shall be provided on each panel for testing in fascia window lamps.
Push buttons for testing flasher and audible alarm circuit of annunciation supply failure· monitoring
shall also be provided. These testing circuits shall be so connected that while test is being done it
shall not prevent the registering of any new annunciation that may land during the test.
iii) One set each of the following push buttons shall be provided on each panel.
a)
Reset push button for annunciation system;
b) Accept push button for annunciation system.
iv) The annunciation shall be repetitive type and shall be capable of registering the fleeting signal. For
fault contacts which open on a fault, it shall be possible at site to change annunciators from "close to
fault" and vice versa.
v) The annunciator shall be suitable for operation with normally open fault contacts which close on a fault.
For fault contacts which open a fault, it shall be possible at site to change annunciators from "close to
fault" and vice versa.
vi) Only electro-magnetic relay type alarm and annunciation relay schemes are acceptable and static type
annunciation schemes are not acceptable. Contactors are not acceptable for annunciation system.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 93 of 123
19.0
Switches
19.1. Control and Instrument switches shall be rotary operated type with escutcheon plates clearly marked to
show operating position and circuit designation plates and suitable for flush mounting with only switch front
plate and operating handle projecting out. Handles of different shapes and suitable inscriptions on
switches aSper clause 6.8 shall be provided as on aid switch identification.
19.2. The selection of operation handles for the different types of switches shall be as follows:
1
Breaker
&
isolator
Pistol grip, black
switches
2
Selector
3
Instrument
Oval
switches
knob,
black
Round,
switches
4
or
knurled,
black
Protection transfer switch
Pistol grip, lockable & black
19.3. The control switch of breaker and isolator shall be of spring return to neutral type. The spring return type
shall be provided with target which shall indicate the last operation of the switch. The control springs shall
be strong and robust enough to prevent inadvertent operation due to light touch. The spring return type
switch shall have spring return from close and trip positions to "after close" and "after trip" positions
respectively.
19.4. Instrument selection switches shall be of maintained contact (stay put) type. Ammeter selection switches
shall make-before-break type contacts so as to prevent open circuiting of CT secondaries when changing
the position of the switch. They shall be of 5 position type viz R-Y-B-N-Off. Voltmeter transfer switches for
AC shall be suitable for reading all line-to-line and line-to neutral voltages for non-effectively earthed
systems and for reading all line to line voltages for effectively earthed systems .
19.5. Lockable type of switches which can be locked in particular positions shall be provided when specified.
The key locks shall be fitted on the operating handles.
19.6. The contacts of all switches shall preferably open and close with snap action to minimize arcing. Contacts
of switches shall be spring assisted and contact faces shall be with rivets of pure silver. Springs shall be
used as current carrying parts.
19.7. The contact combination and their operation shall be such as to give completeness to the interlock and
function of the scheme. The contact rating of the switches shall be as follows:
Contact Rating in Amps
a) Make and carry continuously
b) Make and carry for 0.5 Sec.
c) Break
i) Resistive load
ii) Inductive load with L/R= 40
110 V DC
10
30
240 V AC
10
30
3
0.2
7
7
20.0Indicating Lamps
20.1. Indicating lamps shall be panel mounting type with rear terminal connections. Lamps shall be of LED type.
Lamps shall have translucent lamp covers to diffuse light coloured red, green, amber, dear white or blue
as specified. The lamp cover shall be of screwed type, un-breakable and moulded from heat resisting
material. 20% of lamps actually used on the boards and 10% of the lamp bases of various colour actually
used shall be supplied in excess to serve as spares.
20.2. The wattage and resistance of the lamps shall be as follows:
110 V -5 to 7 W - 1000 to 2000 Ohms
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 94 of 123
20.3. Bulbs and lenses shall be interchangeable and easily replaceable from the front of the panel. Tools, if
required for replacing the bulbs and lenses shall also be included in the scope of supply.
20.4. The indicating lamps with resistors shall withstand 120% of rated voltage on a continuous basis.
21.0
Position Indicators
21.1. Position indicators of 'SEMAPHORE' type shall be provided when specified as part of the mimic diagrams
on panels for indicating the position of circuit breakers, isolating/earthing switches etc. The indicator shall
be suitable for semi-flush mounting with only the front disc projecting out and with terminal connection
from the rear. Their strips shall be of the same colour as the associated mimic.
21.2. Position indicator shall be suitable for either AC or DC operation as specified. When the supervised object
is in the closed position, the pointer of the indicator shall take up a position in line with the mimic bus bars,
and at right angles to them when the object is in the open position. When the supply failure to the indicator
occur the pointer shall take up an intermediate position to indicate the supply failure. The rating of the
indicator shall not exceed 2.5 W.
21.3. The position indicators shall withstand 120% of rated voltage on a continuous basis.
22.0Trip Circuit Supervision Relays
22.1. Trip circuit shall be supervised by means of relays. The scheme shall continuously monitor each trip coil in
both pre-close and post-close of the breaker. The scheme shall detect. i) Failure of DC supply to each trip
coil. il) Open circuit of trip circuit wiring and iii) Failure of mechanism to complete the tripping operation.
22.2. Also 2 Nos. indicating lamps to act in conjunction with trip circuit supervision relays for healthy trip
indication of 2 sets of trip coils shall be supplied.
22.3. Necessary external resistors for trip circuit supervision relays shall be supplied.
23.0
24.0
Flag Relays Shall Have
i)
Hand reset flag indication
ii)
Two elements
iii)
Have necessary NO/NC contacts for each element/coil to meet scheme requirements.
Detailed Description of Protections
The protection, auxiliary relay and timers and other equipment that are required to be provided are included in the
detailed equipment schedule of panels vide Annexure.-I of this specification The detailed description of Back up
protection and the associated equipment is described below:
The setting ranges of relays given in specification are indicative. The setting ranges of the equipment offered, if
different from the ones specified, shall also be acceptable if they met the functional requirements.
The bidder shall quote the protection equipment, meeting the following requirements.
24.1. Relay and Control Panels for 33 kV Feeders
Following meters, relays etc shall be provided in the feeder panel, However. any other items which are not
specifically mentioned in this specification but are required to complete the scheme and for satisfactory
operation of scheme shall also be deemed to be included in this specification.
1)
PROTECTIVE RELAYS:
Over current relay
2 Nos
Earth fault relay
1 No
Relays for OIC and E/F protection shall
I.
be of numeric non-directional type
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 95 of 123
II.
be of triple pole type with two outer elements for O/C and the other
for-E/F protection.
III.
be with IDMT characteristics with a definite minimum time of 3 sec
at 10 times settings.
IV. have a variable setting range of 50-200% for over current and 20-80% for earch fault.
V.
be rated for 5/1ampere
VI.
include hand reset flag indicator
2)
INSTRUMENTS AND METERS
Following meters and instruments shall be provided in the panel:
a)
One no. Ammeter Digital Type
b)
One no. Voltmeter Digital Type
c)
One no Watt meter of digital type
d)
Electronic Trivector meter ( as per specification)
e)
3)
CONTROLS
Following control switches shall be provided in the panel:
a)
One no., three position (i.e. trip-neutral-close) breaker control switch.
b)
One no. Ammeter- selector switch.
c)
Push button for trip circuit healthy indication.
d)
Selector switch for voltmeter
4)
INDICATION AND ALARMS
Following indicating arrangement shall be provided in the feeder panel:
a)
Indicating lamps for CB ON/OFF positions
b)
Indicating lamp for TRIP CIRCUIT HEALTHY CONDITION
c)
Indicating lamp labeling Breaker Spring changed
1 No
d)
Indicating lamp for Auto-trip indication
1 No.
e)
Mimic diagram indicating the relevant position of the single
2 nos.
2 No
Line diagram of the sub-station incorporating the
Semaphore Indicators for circuit breakers
Semaphore indicator for Isolators
1 No.
2 Nos.
And for Earth switch
1 No.
25.0AUXILIARY SUPPLY
Auxiliary supplies which shall be made available in substation are as follows:
a)
A.C. supply 415 V/240 volts, 50Hz three/single phase
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 96 of 123
b)
26.0
D.C. supply: 110 Volts
INSPECTION
Inspection may be carried out by the purchaser or third party nominee at any stage of manufacture. The supplier
shall grant free access to the purchaser's representative or third party nominee at a reasonable time when the
work is in progress. Inspection and acceptance of any equipment under this specification by the purchaser shall
not relieve the supplier of his obligation of furnishing equipment in accordance with the specification and shall
not prevent subsequent rejection if the equipment is found defective.
1.
2. GUARANTEED TECHNICAL AND OTHER PARTICULARS
FOR
STEEL TUBULAR POLE
14.5M=Sp-76 (380kg)]
(TO BE FILLED IN BY THE BIDDER)
:SL. NO.
DESCRIPTION
UNIT
SP-76
( 380 KG )
Name of the bidder
1
Name of Manufacturer
2
Place of manufacture
3
Country in origin
4
IS Standards Application
5
Type of Pole
6
Total length
7
Out side diameter and thickness
of section
a
Bottom
mm
b
Middle
mm
c
Top
mm
8
Minimum Guaranteed weight of
pole ( without base plate )
9
Effective length of Section
a
Bottom
b
Middle
c
Top
9
Minimum Guaranteed weight of
Base plate
10
Breaking load
11
Crippling load
12
Galvanization—gm/sqm
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
M
Page 97 of 123
PERFORMANCE GUARANTEE
Particulars
1
2
3
4
5
6
7
8
9
10
11
12
13
unit
33kV
Manufacturer's name & address
Guaranteed delivery schedule
System Voltage
Maximum permissible service voltage
Continuous current rating
Short time current rating
i) for 1 sec
ii) for 3 sec
Rated peak short circuit current
Rated peak short circuit current of earthing blade
Temperature with corresponding to
i) Short time current rating
Fault current which can be made by earth switch
Maximum current that can be safely interrupted between equi-potential busbars
Clearance in air (minimum) in mm
i) between phases
ii) between live parts and earth
iii) distance between centres of outer stacks of insulators
Power frequency withstand voltage test for complete assembled switches
i) Against ground
a) Dry, KV
b) Wet, KV
ii) Across open contacts
a) Dry, KV
b) Wet, KV
iii) Between phases
a) Dry, KV
14
b) Wet, KV
Particulars of main contacts in fixed (main and earthing switch) and moving
contacts (main and earthing switch)
i) Type
ii) Material
iii) Surface treatment
iv) contact area
15
Current density of minimum cross section of switch blade
16
17
18
No. of operations without need for inspection
Type and materials of connectors
19
20
Whether adjustable gap type arcing horns provided and if yes, give materials used
21
22
23
24
25
26
Whether arcing contacts provided and if yes, give materials used
Insulators
i) Creepage distance of insulators in mm
ii) Bending strength of insulators in KN
location and type of bearings
Weight of complete isolators with insulator
i) With earthing blade, Kg
ii) Without earthing blade, Kg
Operating efforts required for manual operation, Kg
Type of interlocking between isolating switch and earth switch
Details of mounting (centre to centre)
Guaranteed weight of mounting structure including nuts and bolts in Kg
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 98 of 123
Auxiliary contacts
i) Normally Open (NO) contacts
ii) Normally Close(NC) contacts
27
3.
Auxiliary DC Supply
GUARANTEED TECHNICAL PARTICULARS FOR 33 KV SURGE ARRESTORS
Sl.
No
.
1
2
3
4.0
4.1
4.2
5
6
7
8.
9
10
11
12
13
14
15
16
16.1
16.2
16.3
16.4
16.5
17
Description
33kV
11 KV
Name & Address of Supplier & Manufacturer
Surge Arrestor
Line Disconnector
Metal Oxide Block
Terminal Clamp
Name & address of collaborator, if an
Standard to which surge arrestors conforms
Surge Arrestor
Voltage rating (KV rms)
Continuous Operating Voltage (KV rms)
a) Continuous Operating Voltage (KV rms)
b) Leakage current at continuous operation voltage
c) Permitted leakage current of arrestor beyond which arrestor is faulty.
Frequency (Hz.)
Nominal discharge current (wave shape – 8/20 micro
second) (KA)
Pressure relief rated current (KA rms)
Steep current protection level at 10 KA
a) Lightning impulse protection level with 40 X 80 mico-sec. Wave at
500/1000 A
Long duration current impulse withstand capacity and virtual
duration
Line discharge class
Thermal runway limit arrestor
Energy capability (kj/KV)
Pressure relief rating
Dry arcing distance
Reference current and reference voltage
Arrestor Housing
Power frequency one minute wet withstand voltage (kV rms)
Lightning impulse dry withstand voltage (kVP)
Creepage distance
a) Protected
b) Total
Short Circuit withstand capacity
Bending moment (mm)
Dis-connector
a) Constructional Details
b) Other information as applicable to surge arrestor
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 99 of 123
18
19
20
21
22
23
24
Surge Monitor
a) Constructional Details
b) Degree of protection
Suitable for hot line washing
Dimension and Weight
G.A Drawing indicating height of complete unit from base to
line, minimum recommended center to center spacing,
clearance from ground equipment at various height of
Arrestor, earthing arrestor, earthing arrangement on earthed
side of arrestor etc.
Details of Packing
License number and date for using ISI certification mark if
any
Ammeter for discharge current
a) Type & Make
b) Accuracy
c) Range (mA)
25
26
27
Residual voltage
Follow Current
PERFORMANCE GUARANTEE
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 100 of 123
4.
GUARANTEED TECHNICAL PARTICULARS OF COMPOSITE 33 KV POLIMERIC DISC INSULATOR
Sl. No.
Description
Unit
1.
Type of Insulator
2.
Standard according to which the Insulator manufacture and
33 KV,90 KN
tested
3.
Name of material used in manufacture of the insulator with
class/grade
(a)
Material of core(FRP rod)
i)
E-glass or ECR-glass
ii)
Boron content
(b)
Material of housing & Weather sheds silicon content by weight
(c)
(Material of end fitting)
(d)
Sealing compound for end fittings
4.
Colour
5.
Electrical characteristics
(a)
Normal system voltage
KV(rms)
(b)
Highest system voltage
KV(rms)
(c)
Dry power frequency withstand voltage
KV(rms)
(d)
Wet power frequency withstand voltage
KV(rms)
(e)
Dry flash over voltage
KV(rms)
(f)
Wet flash over voltage
KV(rms)
(g)
Dry lightning impulse withstand voltage
KV(peak)
(h)
(i)
a)
Positive
b)
Negative
Dry lightning impulse flash over voltage
c)
Positive
d)
Negative
KV(peak)
R/V at 1 MHz when energized at 10KV/30KV (rms) under dry
Microvolt
condition.
(j)
Creepage distance (mm)
6.
Mechanical characteristics
(a)
Minimum failing load
7.
Dimension of insulator
(mm)
KN
(i)
Weight
kg
(ii)
Dia of FRP rod
mm
(iii)
Length of FRP rod
mm
(iv)
Dia. of Weather sheds
mm
(v)
Thickness of housing
mm
(vi)
Dry arc distance
Dimension
drawing
mm
of
insulator
including
weight
with
Yes/No.
clearances in weight enclosed.
8.
Method of fixing of sheds to housing(specify single moulder
Modular construction moulding)
9.
No. of Weather sheds
10.
Types of sheds
(i)
Aerodynamic
(ii)
With under ribs
11.
Packing details
(a)
Type of packing
(b)
No. of insulator each pack
(c)
Gross weight of package
12.
Any other particulars which the bidder may like to give.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 101 of 123
5.
GUARANTED TECHNICAL
INSULATORS
PARTICULARS
OF
33
KV
COMPOSITE
POLYMER
PIN
Sl
1
2
(a)
(b)
3
4
5
(a)
(b)
(c)
(d)
6
7
(a)
(b)
(c)
(d)
(e)
(f)
(g)
(h)
(i)
(j)
8
9
(i)
(ii)
(iii)
(iv)
(v)
(vi)
10
11
12
13
(i)
(ii)
14
(a)
(b)
(c)
.
N
Description
o
.
Name of Manufacturer
Address:
Registered Office
factory
Type of Insulators
Standard specification to which the insulators manufactured and tested
Name of Material used in manufacture of the Insulator ( With class/ Grade)
Material of core rod
Material of Housing & Weather sheds (silicon content by weight)
Material of end fittings : tongue/ clevis
Sealing compound for end fitting
Colour Glaze of Insulator
Electrical Characteristics:
Nominal System Voltage ( kV RMS)
Highest System voltage (kV RMS)
Dry power frequency withstand (kV RMS)
Wet power frequency withstand (kV RMS)
Dry flash over voltage (kV RMS)
Wet flash over voltage (kV RMS)
Dry lightening impulse withstand voltage
(a) Positive (kV Peak)
33 kV,
30 KN
(b) Negative (kV Peak)
Dry lightening impulse flashover voltage
(a) Positive (kV Peak)
(b) Negative (kV Peak)
RIV at 1MHz when energised at 10kV/30kV(rms) under dry condition(microvolt)
Creepage distance (min) mm
Mechanical Characteristics:
Minimum failing load(KN)
dimensions of insulator:
Weight(kg)
dia of FRP rod(mm)
Length of ERP rod(MM)
dia of weather sheds (mm)
Thickness of housing (mm)
Dry arc distance(mm)
Dimensioned
drawings
of
Insulator(inclluding
weight
with
tolerances in weight) enclosed
Method of fixing of sheds to housing specify):- Single mould or modular
construction( injection moulding/ compression moulding)
No. of weather sheds
Type of sheds
Aerodynamic
With under ribs
Packing details
Type of packing
No. of Insulators in each pack
Gross weight of package
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 102 of 123
6.
Sl No.
1
2
3
4
5
6
7
8
9
10
11
12
Galvanized Channel Cross Arm [100x50x6 mm ]
Description
Name of Manufacturer
Type of cross arm
Size
Material
Applicable Standard
Length
Breath
Width
Thickness
Hole
Center to center distance for
hole
Weight
Galvanization
Ref. Drawing
Particular
To be filled up by Bidder
Galvanized Guard Bracket [150x75x6 mm]
Sl No.
1
2
3
4
5
6
7
8
9
10
11
12
Description
Name of Manufacturer
Type of cross arm
Size
Material
Applicable Standard
Length
Breath
Width
Thickness
Hole
Weight
Galvanization
Ref. Drawing
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Particular
To be filled up by Bidder
Page 103 of 123
7.
GU
UARANT EED TECHNICAL PART ICULARS FOR G.I. WIRE
(TO BE FURNISHED BY BIDDER)
Manufacturer‘s Name & Address
G.I.Wire (4 mm dia)
:
1.
Size of Wire
:
2.
Tolerance in size of wire
:
3.
Tensile strength
:
4.
Wrapping list
:
5.
Galvanising conforming to IS :
4826 – 1968
:
6.
Guarantee
:
B.
G.I.Wire (5 mm dia)
:
1.
Size of Wire
:
2.
Tolerance in size of wire
:
3.
Tensile strength
:
4.
Wrapping list
:
5.
Galvanising conforming to IS :
4826 – 1968
:
6.
Performance guarantee
:
A.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 104 of 123
8.
GUARANT EED TECHNICAL PART ICULARS FOR C.I. PIPE (EART H)
(TO BE FURNISHED BY BIDDER)
Manufacturer‘s Name & Address
Sl.
G.I.Wire (4 mm dia)
:
1.
Length of Pipe
:
2.
Diameter of Pipe
:
3.
External Dia of Pipe
:
4.
Thickness of Pipe
:
5.
Internal Dia of Socket
:
6.
Thickness of Socket
:
7.
Internal Depth of Socket
:
8.
Internal Radius of Socket
:
9.
Width of Grooves of Socket
:
10.
External Dia of Grooves Socket
11.
Weight of Pipe
:
12.
Hydraulic Test
:
13.
Guarantee
:
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 105 of 123
9.
GUARANTEED TECHNICAL PARTICULARS OF ALL ALUMINUM ALLOY
CONDUCTOR (AAAC)
(To be filled in by the Tenderer)
Sl.No.
Description
Unit
1.0
Maker‘s name & Address
2.0
Conductor size and Code
3.0
IS Standard appl;icable
4.0
Wire diameter in mm
mm
5.0
Diameter of complete conductor in mm
mm
6.0
Number of strands
Nos.
7.0
Sectional area of alloy Aluminum
mm²
8.0
Total sectional area
mm²
9.0
Particulars of Raw Materials
9.1
Aluminum
a)
Minimum Purity of Aluminum
%
9.2
Zinc
%
a)
Minimum Purity of Zinc
9.3.0
Aluminum Strands after stranding
9.3.1
Diameter
a)
Nominal
Mm
b)
Maximum
Mm
c)
Minimum
Mm
9.3.2
Minimum breaking Load Strand
kN
9.3.3
Maximum Resistance of 1 M length
10.0
Galvanizing
a)
b)
Minimum
weight
of
Ohm
zinc
coating
per
one
minute
dips
uncoated wire surface
Minimum number
of
Particulars
galvanized strand can withstand in the test
gm/m²
Nos.
Minimum number of twists in a gauge length
c)
times dia of wire which the strand can
Nos.
withstand in the torsion test (after stranding)
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
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11.0
AAAC stranded conductor
11.1
UTS of conductor
11.2
Lay ratio of conductor
a)
1st layer
b)
2nd layer
11.3
D.C resistance of conductor at 20°C
11.4
Standard length of conductor
11.5
Ohm/Km
M
supporting calculations)
Final modulus of elasticity
11.7
Co-efficient of Linear Expansion
11.8
Strand
a)
Standard diameter
b)
Minimum
c)
Maximum
e)
Max
Continuous current rating at 75°C (Enclose
11.6
d)
kN
Cross-Sectional area of Nominal diameter
wire
mm
mm²Nos.
Weight in Kg/KM
Minimum breaking load
f)
Before Stranding
Kg/kN
After stranding
g)
Coefficient of linear expansion
11.9
Joints in strands
a)
Aluminum Alloy
b)
Method of making joint
c)
Ultimate tensile Strength of Joint
12.0
Maximum single length of conductor that can
be manufactured if required for single stretch
13.0
Tolerance of standard length of conductor
14.0
Direction of lay for outside layer
14.1
Linear mass of the conductor
a)
Standard
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Meter
%
Kg/KM
Page 107 of 123
b)
Minimum
Kg/KM
c)
Maximum
Kg/KM
15.0
16.0
No. of cold pressure butt welding available at
works
Standard according to which the conductor
will be manufactured and tested
a)
Certification mark if any
b)
Test Certificate enclosed
17.0
18.0
Initial & Final sag and tension charts
furnished
Stress/Strain data corresponding to different
tensions temperatures furnished
Curves/tables
19.0
Yes/No
corresponding
of
creep
to
compensation
different
tension
temperatures furnished
20.0
PERFORMANCE GUARANTEE
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 108 of 123
SECTION:8
General Conditions of Supply
& Erection of APDCL
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 109 of 123
GENERAL CONDITIONS
OF SUPPLY AND ERECTION
1.0
1.1
1.2
1.3
1.4
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
2.10
2.11
INTRODUCTION :
Assam Power Distribution Company Limited was constituted under the provisions of Electricity Act,
2003 and is a public sector company registered under ‗Company Act,1956‘. It was formed out of
Assam State Electricity Board in 2003 and was notified as the State Electricity Distribution Utility. It is
entrusted with the responsibility of promoting the co-ordinated development of power distribution and
its efficient management in the entire state of Assam.
Assam Power Distribution Company Limited hereinafter referred to as APDCL, has its Corporate Office
at BijuleeBhawan, Paltanbazar, Guwahati, Assam. For further information, one may refer to APDCL‘s
official web site: www.laedcl.gov .in.
Assam is one of the seven states of North East India and its boundary encompasses almost the entire
valleys of Brahmaputra and Barak rivers. The state is well connected with rest of the country by broad
gauge railways and several national highways, one of which is a part of the four lane east-west
corridor. It also has important airports at Guwahati, Jorhat, Silchar, Tezpur&Dibrugarh.
Relevant guidelines and rules connected with all departmental supply and erection works have been laid
down in this document General Conditions of Supply & Erection of Assam Power Distribution Company
Limited adopted in 2009. This document supersedes earlier conditions of contract. It is intended that
contractual clauses of this document will be generally followed in all contractual works. Any
modification of a contractual clause considering requirement of a particular project shall be made in the
NIT/ Tender document for the specific project.
DEFINITION OF TERMS:
The following terms appearing in the General Conditions of Supply & Erection of Assam Power
Distribution Company Limited shall have the meaning herein indicated unless there is anything
repugnant in the subject or context.
―Purchaser/ Employer‖ shall mean the Assam Power Distribution Company Limited (in short APDCL)
and its assignees.
―Contractor/Supplier/Owner‖ shall mean the tenderer/ bidder whose tender/ bid has been accepted by
the ―Purchaser/ Employer‖ and shall include the bidder‘s/ tenderer‘s legal personal representatives,
successors and assignees.
―Engineer‖ shall mean the Officer in-Charge of Project/ Work/ purchase for the supply and/ or erection
contract or such other Officer or Offices as may be duly authorized and appointed in writing by the
Purchaser to act as ―Engineer‖ for the purpose of the contract.
―Sub-Contractor‖ shall mean the person named in the contract for any part of the work or any person to
whom any part of the contract has been sublet with the consent in writing of the ―Purchaser/ Employer‖
and the legal representatives, successors and assignees of such person.
―Materials‖ or ―Works‖ shall mean and include plant and materials to be provided and work to be done
by the contractor under contract.
―Contract‖ shall mean and include the general conditions, specifications, schedules, drawings, tender
forms, bidding schedules, covering letter, schedule of prices, any special conditions applying to the
particular contract specification, amendments if any, letter of acceptance and contract agreement to be
entered into.
―Contract period‖ means the period from the contract commencement date to the date on which the
warranty period is over. Date of acceptance of ‗Purchase/ Work Order‘ shall be treated as the ―date of
commencement of contract‖.
―Specification‖ shall mean the relevant ISS/ IEC specification with up to date amendments and revisions
and/or APDCL specification wherever applicable.
―Site‖ shall mean the site of the station, where proposed work is to be executed under the contract and
to which the plant and machinery are to be delivered and any other places as may be specifically
designated in the contract as forming part of the site.
―Consignee‖ shall mean the Executive Engineer/ Senior Manager or any other authorized Officer
performing the duty of the consignee as specified in the Order.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
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2.18
―Commercial use‖ shall mean use in the work which the contract contemplates or to which it is to be
commercially capable.
―Day‖ shall mean a calendar day.
―Month‖ shall mean a calendar month.
―Writing‖ shall include any manuscript, type written or printed statement properly signed.
―Persons‖ shall include firm, company, corporation and other body of persons whether incorporated or
not.
―Word‖ indicating in the singular only shall also include the plural and vice versa where the context
requires.
―Bid‖ will mean ―Tender‖
3.0
PREPARATION OF TENDER I BID:
2.12
2.13
2.14
2.15
2.16
2.17
3.1.
3.1.1.
3.1.2.
3.1.3.
3.1.4.
DEFINITION OF TENDERER / BIDDER:
When the tenderer is a firm, the names and addresses of the partners must be indicated and a copy of
the certificate of registration with the concerned Registrar of firms should be enclosed.
When the tenderer is a Company, the company registration document along with Memorandum of
Association shall be submitted.
When the tenderer is an individual carrying on business in a firm‘s name, the tender should be
submitted by the owner of the firm, who may describe himself as carrying on business in the firm‘s
name.
When the tenderer is a Joint Venture (JV) of two or more firms as partners, one of the partners shall be
legally authorized as the lead partner for the purpose of submitting the tender, incur liabilities; receive
payments and instructions on behalf of the others. A copy of the registered agreement, executed on
Non judicial stamp paper, shall be submitted with the tender.
However, in case of a successful tender, the agreement shall be signed by all the partners, so as to be
legally binding on all the partners.
3.2.
3.2.1.
PURCHASE OF TENDER I BIDDING DOCUMENTS:
Tenderer may purchase the tender document by paying the requisite fee as stipulated in the NIT.
Alternatively, the tenderer may download tender document from the company‘s website:
www.laedcl.gov.in and pay the above requisite fee by way of a demand draft separately along with
earnest money. Tenderer shall be responsible for any error etc., on the downloaded tender document.
3.2.2.
The General Conditions of Supply & Erection of Assam Power Distribution Company Limited will be
treated as a part of the NIT. The Contractor shall be deemed to have carefully examined the aforesaid
general conditions of supply & erection besides all specifications.
The tender should be complete in all respects so as to eliminate further correspondences and
clarifications. A tender which is not complete in all respects, will be liable for rejection. However the
Purchaser, in its discretion, may seek clarification from the tenderer where necessary .The discretion
of the Purchaser in this regard shall be final.
3.2.3.
3.3.
3.3.1.
3.3.3.
LANGUAGE AND SIGNING OF TENDER:
The tender, and all correspondence and documents related to the tender, exchanged between the
Tenderer and the Purchaser shall be written in English. Supporting documents and printed literature
furnished by the tenderer shall also be in English.
Tender shall be written in ink or typed. No tender filled in pencil or otherwise shall be considered. The
tender shall be signed by a responsible and authorized person and the designation and authority of the
signatory shall be stated in the tender. All corrections in the proposal will have to be signed with date
and seal of the tenderer. Such correction even though signed, may make the tender liable for rejection.
Any printed document promoting sales may not be accepted by the Purchaser.
3.4.
DOCUMENTS COMPRISING TECHNO-COMMERCIAL BID:
3.3.2.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 111 of 123
The particulars and supporting documents required in respect of the techno- commercial bid should be
strictly as per following sub-clauses (clauses 3.4.1 to 3.4.10). In case, any of the details are either not
furnished or inadequately furnished, the entire tender may be rejected without informing the tenderer.
A techno-commercial bid may have to be submitted under separate sealed cover if so stipulated in the
NIT. The price bid may not at all be opened for examination in case the techno-commercial bid, which
shall be opened first is not found substantially responsive.
3.4.1.
(a)
(b)
(c)
(d)
(e)
3.4.2.
EARNEST MONEY OR BID SECURITY:
Every tender must be accompanied with Earnest Money of value as stipulated in the NIT. Mode of
depositing the earnest money shall be clearly indicated in the NIT. Earnest money or Bid security may
be furnished in the shape of Bank Call Deposit/ Bank Draft as may be prescribed in the NIT. Without
this, the tender may be deemed to be incomplete and liable for rejection. The earnest money shall be
pledged in favour of the Officer as indicated in the NIT.
In case of unsuccessful tenderer, earnest money will be released on request from the tenderer on a
date subsequent to contract agreement with the successful tenderer.
In case of successful tenderer, the earnest money will be retained until submission of the performance
security deposit referred to in clause 9.0.
No interests shall be payable on such deposit
The Purchaser/ Employer reserve the right to forfeit the earnest money or part thereof, in
circumstances which according to him indicate that the tenderer is not earnest in accepting/ executing
any order placed under specification.
GUARANTEED TECHNICAL PARTICULARS:
The GTP (Guaranteed Technical Particulars) of the materials offered along with their complete
technical description supported by drawings shall be furnished by the tenderer. Relevant specifications
like IS/ BS/ IEC etc. will be mentioned.
3.4.3. TEST REPORTS:
(a)
A list showing various type tests and routine tests as required under the relevant specifications shall be
furnished by the tenderer and all such tests shall be carried out on the materials and the components
offered for supply in the event of award of contract. Against each such test, the results of test
performance shall be mentioned along with the name of laboratories/ testing houses, where tests were
so conducted. In support of the results whether type tests or factory tests, certified copies of the test
certificates shall be furnished. In case any of the prescribed tests has not been carried out, the same
shall be clearly mentioned in this list stating the reasons for not carrying out the test. The tenderer also
shall furnish a separate list of tests which they have carried out on their products for ensuring their
better quality, but are not stipulated explicitly, in the relevant ISS or BSS specifications. Type test
reports to be acceptable, the tests have to be carried out at an NABL accredited laboratory. Reports of
Type test conducted in laboratories other than the above will be acceptable only if witnessed by an
officer from a power utility.
(b)
Type test reports of equipment of higher capacity or voltage class than those specified shall be
acceptable for the purpose of bidding. However, in that case, the successful tenderer shall conduct
type tests on the offered equipment free of charge.
(c) Type test reports, conducted 5 years prior to the date of opening of tender, in general, will not be
accepted.
3.4.4.
SPARE PARTS:
Each tenderer shall indicate the expected life in use of their products. A list of spares which may be
necessary for replacement during the maintenance of the equipment in service shall be furnished
indicating if these are of proprietary nature or of standard make available in the market. In case these
spares are of proprietary nature, their prices and the likely quantities that may be necessary during the
useful life of the equipment shall also be mentioned.
3.4.5.
BIS. CERTIFICATION:
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 112 of 123
The tenderer shall state clearly if the particular product offered by him is covered by any IS certification
mark and if so, the tenderer will furnish the particulars of the IS Specification, the year of obtaining the
certification and a copy of the certification.
3.4.6.
PAST EXPERIENCE:
A Complete list of supplies/ works/ services in respect of the particular supplies / works / services
offered to various parties during the period of last 5 (five) years along with total value of supplies shall
be furnished. A separate list of supplies/ works/ services not exactly same as the one offered but
similar to it, supplied during the last five years shall also be furnished.
The tenderer shall state clearly if they had supplied similar material including the offered product, to
Assam Power Distribution Company Limited/ ASEB in the past. If so, reference of the purchase orders,
the ordering authority and the consignees shall also be furnished.
3.4.7. SOURCES OF SUPPLIES:
3.4.7.1. The tenderer shall clearly state the names of the manufacturer, the brand name of the product and the
place/ places of its manufacture. In case, the components of the product are obtained from ancillary
manufacturers, the names and addresses of such manufacturers also shall be furnished. It shall be
mentioned clearly how the tenderer ensures quality control over such ancillary components and if
manufacturer of such components is covered by any IS/ BS/ IEC or any other relevant specification.
3.4.7.2. The tenderer shall mention clearly whether he is a manufacturer, a sole selling agent or a commission
agent of the product.
3.4.7.3. When the tenderer is not a manufacturer, submission of manufacturer's authorization for supply of the
offered materials by the tenderer along with warranty pledged by the manufacturer is compulsory.
3.4.7.4. Further, the manufacturing experience of the manufacturer in respect of the particular product or
similar product also shall be furnished, indicating chronological development of the industry or the
manufacturing unit.
3.4.7.5. The sources of receipt of the raw material whether indigenous or imported shall be clearly mentioned
against each type of such raw materials used. The methods by which quality control of such raw
materials being enforced shall be clearly described.
3.4.8. DELIVERY/ WORK SCHEDULE:
3.4.8.1. The delivery/ work schedule as stipulated in the NIT or. in the APDCL specification shall be binding on
the tenderers. In case the APDCL delivery/ work schedule is not acceptable to the tenderer, then the
tenderer may give their own delivery schedule stating clearly the reasons for deviations whether
statutory or otherwise.
In any case such schedules must satisfy the completion time specified. Acceptance of such deviations
in the delivery/ completion schedule is entirely optional to the Purchaser.
3.4.8.2. The commencement period and the quantity of each item to be supplied per month shall be specifically
mentioned.
3.4.8.3. Quantities offered ex-stock as well as with earlier delivery schedule shall be mentioned.
3.4.9.
SAMPLES:
A sample shall be submitted along with the tender if asked for in the NIT and as per .its terms. Nonsubmission or late submission of sample may disqualify the tender .
3.4.10. TAX CLEARANCE CERTIFICATES AND REGISTRATION:
3.4.10.1. The tender shall be accompanied with income tax and sales tax clearance certificates.
3.4.10.2. The Contractor must register for VAT with the concerned department of Government of Assam within a
reasonable time after award of contract if not already registered.
3.5.
3.5.1.
3.5.2.
PRICE BID
The particulars and supporting documents in respect of the price bid should be as follows:
The total FOR destination price of the product offered unit wise and quantity wise both in words and in
figures shall be clearly furnished. Such FOR destination price also shall be supported by a breakup of
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 113 of 123
3.5.3.
3.5.4.
3.5.5.
the price indicating separately Ex-works price, station of dispatch, Freight and Insurance Charges. The
offer may be straightway rejected if the FOR destination price and its break up against the
components as aforesaid are not furnished. The FOR destination price will be on door delivery basis
and shall be inclusive of cost of unloading of materials at site.
The Ex-works price shall not include Sales Tax whether central or state and the same will be indicated
separately in words and in figures by the tenderer .
Excise duty on the finished product also shall be indicated separately if applicable. This should be
worked out both unit wise and quantity wise indicating the excise rates applicable.
Any other levy, entry tax, excise or otherwise on finished products and of statutory nature also shall be
indicated separately stating the reasons for claim of such levies.
3.5.6. For imported equipment:(a) The tenderer shall quote price for:i. FOB Port of shipment, inclusive of seaworthy packing.
ii. CIF Kolkata
iii. Indian Agent Commission, if any.
(b) When prices quoted are for delivery FOB port of shipment, the Contractor shall agree to arrange for
the shipment and insurance of the machinery from the port of shipment to Kolkata on behalf and to the
account of the Purchaser should the Purchaser so desires. The actual expenses incurred by the
Contractor for Sea freight and insurance will be paid by the Purchaser. The Purchaser shall provide for
all incidental and statutory charges beyond the port of shipment such as customs duty clearance,
loading and unloading, Railway freight and Octroi or terminal and other taxes.
(c) Firm FOB port of shipment shall be quoted. An alternative price CIF Kolkata shall be quoted
separately. The customs duty applicable and the category (Import Trade Control Classification as
brought up to date) under which the ―applicant‘s plant is assessable‖ shall be stated. If firm FOB price
cannot be offered, price subject to contract price adjustment may be quoted, but a ceilings limit must
be stated. Any claim for contract price adjustment shall be supported by authentic documents
which shall be to the satisfaction of the Purchaser. Preference will be given to the firm offering FOB/
CIF price. The currency in which payments have to be affected shall be clearly mentioned in the tender
.
(d) The best delivery FOB port of shipment shall be clearly stated in the tender as it shall have a vital
bearing on the selection of the final successful tender.
(e) In either cases of goods supplied from within and outside India, the tenderer will quote separately the
freight and insurance for delivery of the goods at site.
3.5.7.
Price quoted should be firm. If however a variable price is permitted as per provisions of the
NIT, the tenderer shall specifically stipulate the price variation formula by indicating the base price and
base date. Normally the price variation formula and indices as per IEEMA and CACMAI will be
accepted.
3.5.8.
In case the tenderer quotes variable price as per any formula of his own/ other sources, the
tenderer will state clearly the reasons for quoting such variable price and submit the source of the
formula and indices. However, his offer may be rejected at the discretion of the Purchaser if the
Purchaser finds the quoted formula to be complex and it is difficult to compare the outcome with other
bids.
3.5.9.
In any case, if price variation is allowed, it will be limited to a ceiling of 10% (ten percent) upward only.
However, there shall be no limit for downward price variation.
3.5.10. The rate quoted shall remain valid for a minimum period of 180 (one hundred eighty) days from the
date of opening of the tender. Any tender offering a shorter validity period than specified in the NIT
may be rejected outright. The price quoted shall remain FIRM during the period of validity and any post
revision of rate after opening of the tender will make it liable for rejection. The Purchaser, however,
reserves the right to negotiate with the tenderer or offer lowest/ reasonable rate to any/ all of the
tenderers.
3.5.11. The tenderer shall explain clearly if there is any DGS & D rate contract available for the product offered
and if on the positive, copies of such rate contract shall invariably be furnished. For such DGS & D
prices, the tenderer.should state clearly the period of validity of the rate contract.
3.5.12. The tenderer shall mention clearly if any quantity discount or payment discount is offered.
3.5.13. The price bid shall be furnished clause wise and in the same order as above.
4.0
RIGHT TO REJECT:
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 114 of 123
4.1.
The Purchaser reserves the right to reject any or all the tenders without assigning any reason thereof
and the Purchaser further reserves the right to split up the supply order in favour of more than one
contractor. The Purchaser also reserves the right to reject the lowest or any other price without
assigning any reason.
5.0
5.1.
ACCEPTANCE OF THE ORDER / CONTRACT:
Acceptance of the order(s) in writing shall be conveyed by the supplier to the Purchaser/ Employer
within 10 (ten) days from the date of issue of the purchase order failing which, it will be presumed that
all the terms and conditions of the purchase order are acceptable by him in full.
Before finalization of the contract, if discussion with the successful tenderer is considered necessary
by the Engineer, the tenderer shall turn up for the same within 10 (ten) days from the receipt of
intimation by FAX / e-mail at no extra cost to the Purchaser.
Also, if it is for executing a separate agreement the successful tenderer will turn up for the same within
10 (ten) days from the receipt of intimation at no extra cost to the Purchaser.
5.2.
5.3.
6.0
6.1.
6.2.
6.3.
6.4.
CONDITION OF CONTRACT: COMMERCIAL & GENERAL:
If so required by the Purchaser, a formal agreement with or without guarantee at the option of the
Purchaser shall be entered into between the Contractor and the Purchaser for the proper fulfilment of
contract.
Such contracts shall be drawn up in non-judicial stamp paper.
The expenses of completing and standing the agreement shall be paid by the Contractor and
Purchaser shall be furnished free of charge with an executed stamped counterpart of the agreement
along with ten copies thereof.
After the tender has been accepted by the Purchaser, all orders or instructions to the Contractor shall
except as wherein otherwise provided, be given by the Engineer on behalf of the Purchaser .
7.0
7.1.
CONSTRUCTION OF CONTRACT:
The contract shall in all respects be constructed and operated as defined in the Indian Contract Act
1972 and any statutory modification thereof.
8.0
8.1.
EXECUTION OF AGREEMENT:
The contract agreement to be executed at Guwahati (Assam) by the parties.
9.0
9.1.
PERFORMANCE SECURITY DEPOSIT:
The successful tenderer shall have to deposit through a Bank Guarantee from a nationalized or
scheduled Bank of RBI for an amount equivalent to 10% (ten percent) of the total value of the order as
performance security, immediately on acceptance of letter of intent/detailed orders (as the case may
be), duly pledged in favour of the Purchaser concerned and such security deposits shall be valid up to
30(Thirty) days beyond the warranty period.
If the supplier fails or neglects to observe perform any of his obligations under the contract, the
Purchaser shall have the right to forfeit either in full or in part at his absolute discretion, the security
deposit furnished by the supplier.
No interest shall be payable on such deposits.
9.2.
9.3.
10.0
10.1.
10.2.
10.3.
RETENTION MONEY:
In addition to above performance security deposit, 5% value of each progressive bill will be retained
by the Engineer/ Purchaser as ‗retention money‘. The amount will be held by the Purchaser till the
work under the contract is completed and the completion certificate is issued in pursuance to clause
25.0.
If the supplier fails or neglects to observe and perform any of his obligations under the contract, the
Purchaser shall have the right to forfeit either in full or in part at his absolute discretion, the security
deposit furnished by the supplier.
No interest shall be payable on such deposits.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 115 of 123
11.0
11.1.
11.2.
12.0
12.1.
RAW MATERIALS:
Raw materials will be arranged by the suppliers from their own quota and the Purchaser does not
have any responsibility in this regard. If, however raw materials are obtainable against purchaser‘s
quota due to statutory compulsion, allotment orders in respect thereof will be issued by the Purchaser.
In case of raw materials for which supplier has own quota, no recommendation or advice for release of
raw materials shall be issued by the Purchaser. If issue of raw materials from purchaser quota is
desired by the tenderer, he must indicate the price of the same raw material considered in the offer. In
the event of actual cost of such supply by the Purchaser, being lower than the price stipulated in the
tender, the difference will be recovered from the tenderer.
Where imports are unavoidable, the items shall be imported by the supplier in good time against his
import license without affecting the delivery schedule.
WARRANTY :
Each tender shall stipulate a warranty clause of products offered covering a minimum period for
rectification/free replacement thereof. The term ―period of warranty‖ shall mean the period of 12
(Twelve) months from the date of commissioning and successful operation of the equipment. In any
case, this period shall not be less than 18 months from the date the materials are received in the
purchaser‘s store in good and acceptable conditions. During the period of warranty, the Contractor
shall rectify all defects in design, materials and workmanship that may develop under normal use of the
equipment upon written notice from the Engineer who shall indicate in what respects the equipment is
faulty .This rectification/ free replacement must be carried i out within a reasonable period as
determined and directed by the Engineer. The cost of rectification/ free replacement will be to the
Contractor‘s account.
12.2.
If the Contractor fails to rectify the defects within the reasonable time, the Purchaser/ Employer may
fix a date by which the Contractor would rectify the defects, failing which the Engineer may
(a) Carry out remedial works himself or through by others, in a reasonable manner and at the contractor‘s
risk and cost. The costs incurred by the Purchaser/ Employer in remedying the defect shall be
recoverable from the Contractor by the Purchaser/ Employer;
(b) Determine and certify a reasonable reduction in the contract price; or
(c) May terminate the contract in respect of such parts of the works and the Engineer shall be entitled to
recover all sums paid for such parts of the work.
13.0
13.1.
DETAILS OF AUXILIARIES / MATERIALS:
Within a reasonable time from the date of acceptance of notification of award of contract, the
Contractor shall provide the Purchaser with details of all the auxiliaries/ materials being supplied and
also of others, not forming part of the Contractor‘s supply but essential for the safe and satisfactory
working of the equipment/ system.
The Contractor shall send for approval on or before the date indicated by the Engineer, outline
drawings of all equipment/ materials to be furnished under the contract, together with weights and
sufficient overall dimensions to enable the design of the foundations, structures and associated
equipment to be prepared and also for transportation purpose.
14.0
14.1.
CONTRACTOR.S DRAWINGS:
All working drawings shall preferably be prepared in AutoCAD 2000 software or its later version. The
Contractor shall also submit the soft copies of all working drawings.
Within 30 days from the date of acceptance of notification of award of contract, the Contractor shall
send to the Purchaser a preliminary list of all the drawings with their respective identification numbers,
titles and expected date of submission.
This list shall be amended or extended by the Contractor as and when necessary during the progress
of the work under the contract.
All titles, notes and inscriptions on the drawings shall be in English.
All drawings which the Contractor shall send to the Purchaser for approval shall be approved or
rejected or returned for modification within 15 days of receipt by the Purchaser. In case of modification
or rejection the Contractor shall submit the correct drawings within 15 days from receipt of
communication from the Purchaser.
14.2.
14.3.
14.4.
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14.5.
Contractor shall be responsible for any delay in the contract processing and its award caused by non
conforming technical particulars furnished by the Contractor requiring query, confirmation etc.
Upon approval by the Engineer, the drawings shall become the contract drawings and thereafter, the
Contractor shall not depart from them in anyway whatsoever except with the written permission of the
Purchaser.
14.6.
FINAL AS-BUILT DRAWINGS:
In the final stages of the contract, the Contractor shall submit to the Purchaser hard copies as well as
soft copies of complete set of built up drawings.
14.7.
14.7.1.
MISTAKES/ ERRORS IN DRAWINGS:
The Contractor shall be responsible and liable for any change in the work due to any discrepancies,
errors, or omissions in the drawings or other particulars which have arisen due to inaccurate
information or particulars furnished by the Contractor, even though approved by the
Purchaser/Employer.
However, the Purchaser/ Employer shall be responsible for drawings and information supplied by him.
The Purchaser/ Employer shall compensate for any change in the work caused due to inaccurate
information supplied by him to the Contractor.
14.7.2.
15.0
15.1.
COPY RIGHT ETC.:
The Contractor shall indemnify the Purchaser against all claims, actions, suits and proceedings for the
infringement or alleged infringement of any patent, design or copyright protected either in the country
of origin or in India for the use of any equipment supplied by the Contractor but such indemnity shall
not cause any use of the equipment other than for the purposes indicated by or reasonably to be
inferred from the specification.
16.0
16.1.
SUBLETTING CONTRACT:
The Contractor shall not, without the consent in writing of the Purchaser/ Employer assign or sublet his
contract, or any substantial part thereof, or interest therein or benefit or advantage whatsoever, other
than for raw materials or for minor details or for any part of the work of which the Sub-contractors are
named in the tender provided any such consent shall not relieve the Contractor from any obligation,
duty or responsibility under the contract.
17.0
17.1.
PACKING & MARKING:
The contract shall include provisions for secured/ protective packing of equipment so as to avoid
damage in transit, and the Contractor shall be responsible for all loss or damage caused or occasioned
by a defect in the packing.
All bright metal parts shall be thoroughly protected from rust during transit.
All materials shall be packed in suitable strong cases or crates as per standard practice, unless
otherwise specified. Large equipment such as power transformers, circuit breakers etc. which are not
packed in cases, shall have all screwed holes plugged with wood and all machined faces shall be
properly protected. Each package should be suitably marked with APDCL marking as specified in the
purchase order.
17.2.
17.3.
18.0
18.1.
VARIATION OF QUANTITY:
Purchaser/ Employer shall have the right to increase/ decrease the ordered quantity by 20% within 50
days of the period of completion of supply order and the same shall be supplied at the same rates/
prices and terms and conditions stipulated in the order except in regard to delivery schedule, which
shall be mutually agreed upon in case of increase in the ordered quantity.
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19.0
19.1.
CO-OPERATION WITH OTHER MANUFACTURERS:
The Contractor shall agree to co-operate with the Purchaser‘s other contractors for associated supplies
and freely exchange with them such technical information as is necessary to obtain the most efficient
and economical design and to avoid unnecessary duplication. No remuneration shall come from the
Purchaser for such technical co-operation.
20.0
20.1.
INSPECTION AND TESTING:
The Purchaser/ Employer and his duly authorized representative shall have at all reasonable time
access to the Contractor‘s premises or works and shall have the power to inspect and examine the
materials including raw materials used and the workmanship of the product during manufacture. If a
part of the goods is manufactured at other‘s premises or works the Contractor shall obtain for
purchaser‘s duly authorized representative, permission to similarly inspect at the other premises/works.
21.0
21.1.
INSPECTION AT SITE FOR ERECTION WORK:
A representative of the Purchaser shall have access to the Contractor/ Sub- Contractor‘s work at site
at any time and the Contractor/ Sub-Contractor or his authorized agent shall be present and shall
provide facilities for necessary inspection.
22.0
22.1.
TEST AT SITE FOR ERECTION WORK:
The Contractor after erection and commissioning of the equipment shall arrange testing to prove
correct workmanship as per specification. The Contractor shall give in writing the Purchaser‘s
representative thirty (30) days notice of the date the equipment would be ready for testing. The
Contractor shall bear all testing cost at site of work and shall become responsible for rectification of
defects found on testing within reasonable time as decided by the Engineer.
23.0
23.1.
INSURANCE:
The Contractor shall, unless otherwise specified by the Purchaser, insure the materials through their
underwriter at their cost and shall keep it insured against any loss/ damage/ pilferage in transit,
destruction or damage by fire/ flood, exposure to vagaries of weather or through riot, civil commotion,
war or rebellion, for the full value of the materials until the materials are received at the Purchaser‘s
destination store.
The Contractor shall be responsible for safe arrival of the goods at destination, their unloading and
their receipt by the consignee. The Assam Power Distribution Company Limited will discharge
consignee‘s responsibilities only and shall not be responsible for any damage/ loss/ pilferage/ nondelivery by the carriers.
In case of any loss / damage / pilferage / non-delivery / short delivery by carriers etc. the supplier shall
replace free of cost the missing / damaged / lost materials within 30 (thirty) days from the receipt of
report thereof from the consignee without waiting for settlement of their claims with their carriers/
under-writers.
Normally such reports from the consignee to the supplier shall be initiated within a period of 30 (thirty)
days from the date of receipt of each consignment by him.
If it is considered necessary that the damaged equipment either in part or in full be sent back to the
manufacturer‘s works for repair, the manufacturers/ suppliers will furnish the Bank Guarantee for the
full value of equipment needing repairs and such Bank Guarantee shall remain valid till such time the
equipment are repaired and returned to the consignee in good condition. The to and fro freight,
handling and insurance charges in such cases will be borne by the Contractor .
Unless otherwise mutually agreed upon, in case of failure by the supplier to replenish/ make good of
the loss/ damage/ short supplied quantities, within the stipulated period, the Purchaser reserves the
right to forfeit the security deposit and/ or adjust any outstanding payment to the Contractor with
APDCL or take any other appropriate action.
All materials will be dispatched against clear door delivery basis unless otherwise agreed by the
Purchaser .
23.2.
23.3.
23.4.
23.5.
23.6.
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24.0
TERMS OF PAYMENT:
24.1.
The standard terms of payment of APDCL for supply of equipment/ materials are indicated below:(A) 100% payment would be admissible within three (3) weeks from the date of receipt of the materials/
equipment at site in full and good condition less deduction of retention money and advance applicable
as per clause 10.0 and 24.2 and as per terms and conditions stipulated in the purchase order
(B) However, in special case, the following terms of payment may be agreed to at the discretion of
Purchaser .
(1)
Payment of 90% (ninety percent) of the consignment value on receipt of all dispatch and other
documents by the consignee through Bank.
(2)
Balance 10% (ten percent) on-receipt of the equipment/ materials at site in full and in good
condition and as per terms & conditions stipulated in the Purchase order.
(3)
Payment vide clause (B)(I) & (B)(2) would be made provided the Contractor submits to the
Purchaser/ Employer a bank guarantee equivalent to 90% of the consignment value, which will
be released after the consignment is received in full and good condition.
(4)
Payments as per sub-para (A), (B)(I) & (B)(2) above will be made under the following
conditions:(a) Advance copies of bills in duplicate and other information such as challan packing list etc.
are furnished sufficiently in advance.
(b) Any demurrage charges on account of late intimation and/or delivery of documents by the
Bank is borne by the supplier.
(c) The supplier intimates the dispatch of each and every consignment to the Purchaser and
the Consignee.
(d) All Bank charges are borne by the supplier.
(5) Payment through Bank in respect of material/ equipment dispatched by road transport shall be
allowed if required, provided the transport agency is approved by the Banking Association and prior
approval thereof is given by the Engineer .
(C) TERMS OF PAYMENTS FOR ERECTION WORK:
Payment up to 100% of erection items will be made against progressive monthly bills within a
reasonable time from the date of submission of bills less deduction of retention money and advance
applicable as per clause 10.0 and 24.2 respectively.
24.2.
ADVANCEPAYMENT:
10% of the contract value as interest free advance against a Bank Guarantee for a sum equivalent
may be permitted if specifically provided in the NIT. The advance amount will be gradually adjusted/
amortized by suitable instalments from the progressive bills. Number of instalments will be specified in
the NIT.
25.0
25.1.
TIME FOR COMMENCEMENT AND COMPLETION:
For the purpose of determining the completion time of supply and/or erection works, the date on which
the Contractor accept the purchase/ work order in pursuance to clause 5.0 shall be taken as
commencement date of the contract.
The Contractor shall attain Completion of the supply and/or works (or of a part where a separate time
for Completion of such part is specified in the NIT/ Contract), within the time stated in the NIT /
Contract.
As soon as the works, in the opinion of the Contractor, are completed as per requirements of the
specification/ contract, the Contractor shall so notify the Engineer in writing.
The Engineer shall, within fourteen (14) days after receipt of the Contractor‘s notice under Sub-Clause
25.3 either issue a Completion Certificate in the form specified by the Engineer, stating that the supply/
works thereof have reached Completion on the date of Contractor‘s notice under Sub-Clause 25.3 or
notify the Contractor in writing of any defects and/ or deficiencies.
If the Engineer notifies the Contractor of any defects and/ or deficiencies, the Contractor shall then
correct such defects and/ or deficiencies, and shall repeat the procedure described in Sub-Clause 25.3
If the Engineer is satisfied that the supplies/ works have reached completion, the Engineer shall, within
seven (7) days after receipt of the Contractor‘s repeat notice, issue a Completion Certificate stating
that the supplies/ works have reached Completion on the date of the Contractor‘s repeat notice.
If the Engineer is not so satisfied, then he shall notify the Contractor in writing of any defects and/or
deficiencies within seven (7) days after receipt of the Contractor‘s repeat notice, and the above
procedure shall be repeated.
25.2.
25.3.
25.4.
25.5.
25.6.
25.7.
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25.8.
If the Engineer fails to issue the Completion Certificate and fails to inform the Contractor of any
defects and/ or deficiencies within fourteen (14) days after receipt of the Contractor‘s notice under SubClause 25.4 or within seven (7) days after receipt of the Contractor‘s repeat notice under Sub-Clause
25.6 then the supplies / works shall be deemed to have reached completion on the date of the
Contractor‘s notice or repeat notice, as the case may be.
25.9.
EXTENSION OF TIME FOR COMPLETION:Should progress be delayed because of delay in approval
of drawings or any cause beyond reasonable control of the Contractor, reasonable extension of time
may be granted on the application made by the Contractor in writing to the Purchaser but without
prejudice to other terms and conditions of the contract. It shall be the duty of the Contractor to notify to
the Purchaser the reason for delay which the Contractor considers to be beyond his control. The
decision of the Purchaser as to whether the delay was beyond the control of the Contractor shall be
final.
Price variation, if any, applicable as per purchase order shall not apply to any quantity not delivered as
per delivery schedule of the purchase order. If, however, the prices in respect of delayed deliveries are
found to have gone down, payment will be made at the reduced price or penalty levied at the discretion
of the Purchaser.
25.10.
26.0
26.1.
LIQUIDATED DAMAGE FOR DELAY IN DELIVERY / COMPLETION OF WORKS AND PENALTY:
The date of delivery/ completion of work shall be deemed to be the essence of the contract and shall
be completed not later than the date specified in the purchase order/ contract. In case of failure to
deliver the materials/ equipment in full or to complete the delivery within the stipulated delivery period
or delay in the erection work beyond completion schedule, the Purchaser/ Employer shall be entitled
to: (1) Recover an amount at the rate of 1% (one percent) of the Contract Price per week or part thereof of
delay, subject to maximum of 10% (ten percent) of the contract price as liquidated damage to APDCL.
However, the payment of liquidated damages shall not in any way relieve the Contractor from any of its
obligations to complete the works or from any other obligations and liabilities of the Contractor under
the Contract.
(2) Purchase the undelivered material/ equipment from elsewhere or to complete the balance work giving
notice to the supplier and to recover any extra expenditure incurred thereby for having to purchase
these materials or complete the work at a higher price, at the risk and responsibility of the Contractor.
(3) Cancel the contract wholly or in part and to purchase materials/ equipment at the full risk and cost of
the supplier and forfeit the security deposit.
27.0
27.1.
CONTRACTUAL FAILURE:
In the event of contractual failure of any respect on the part of the supplier, the Purchaser shall be
entitled to forfeit the security deposit or any deposit or any payment due to Supplier from this or his
other contracts towards the recovery of Purchaser‘s claim for damages arising out of the failure. In
addition, APDCL may black-list or ban the Contractor or pending enquiry, suspend him or take any
other steps considered suitable.
28.0
28.1.
REJECTION:
In the event, any of the Equipment supplied by the Contractor is found defective in materials or
workmanship or otherwise not in conformity with the requirements of the contract specifications, the
Purchaser shall either reject the equipment or request the Contractor in writing to rectify the same. The
Contractor, on receipt of such notification shall either rectify or replace the defective equipment free of
cost to the Purchaser. If the Contractor fails to do so, the Purchaser may at his option:
(a) Replace or rectify such defective equipment and recover the extra cost so involved from the
Contractor plus 15% fifteen percent thereof, or
(b) Terminate the contract for default, or
(c) Acquire the defective equipment at a reduced price as considered equitable under the circumstances.
The provision of this article shall not prejudice the Purchaser‘s right under clause 26.0
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Page 120 of 123
29.0
29.1.
29.2.
DEDUCTION FROM CONTRACT PRICE:
All cost, damages or expenses which the Purchaser may have made for which, under the contract, the
Contractor is liable, may be deducted by the Purchaser from any money due or becoming due by him
to the Contractor or may be recovered by action at law or otherwise from the Contractor.
In the event of recovery to the necessary extent becoming impossible owing to insufficiency of the
earnest money/ security deposit and withheld amounts, the balance due to the Purchaser may at the
option of the Purchaser be recovered from any money due to the Contractor from LAEDCL under other
contracts with the Contractor.
30.0
30.1.
FORCE MAJEURE:
Normally, force majeure shall cover only act of God, fire, war, riots and, act of Government etc. Any
constraints other than those specified above, will not constitute a force majeure condition. In view of
other constraints beyond the control of the supplier, primarily due to statutory compulsion, extension of
delivery time may also be considered on merit of individual case. In case of a force majeure condition,
the Contractor shall notify the Purchaser in writing such condition within 10 (ten) days from the
beginning of such delay for consideration and acceptance.
31.0
31.1.
CHANGE OF NAME OF THE TENDERER:
At any stage after tendering, the Purchaser/ Employer shall deal with the Supplier/ Contractor only in
the name and the address under which he submitted the tender. All the liabilities/ responsibilities for
due execution of the contract shall be that of the Supplier/ Contractor. The Purchaser may however, in
his discretion deal with agents/ representatives/ distributors/ manufacturers/ associates/ principals/
sister concerns and such dealings shall not absolve the Supplier/ Contractor from the responsibilities/
obligations/ liabilities to the Purchaser/ Employer under the contract.
Any change/ alteration of name/ constitution/ organization of supplier shall be duly notified to the
Purchaser/ Employer and the Purchaser/ Employer reserves the right to determine the contract, in
case of any such notification.
31.2.
32.0
32.1.
(a)
(b)
32.2.
(a)
(b)
33.0
33.1.
DEATH, BANKRUPTCY ETC.:
If the Contractor becomes bankrupt or being a corporation is in the process of winding up,
amalgamation or reorganization, the Purchaser shall be at liberty to:
Terminate the contract forthwith by notice in writing to the Contractor or to the liquidator or receiver or
to any person in whom the contract may become vested.
Give such liquidator, receiver or other person the option of carrying out the contract subject to his
providing a guarantee for the due and faithful performance of the contract up to an amount to be
determined by the Purchaser.
In case of death of the Contractor before completion of work and supply, the Engineer or Purchaser
shall be at liberty to:
Close up the contract and take over the completed portion of work/ supply done and made as per
specification and make final payment to the legal heir of the Contractor on receipt of claim from such
legal heir .
Give the contract to the legal heir of the Contractor subject to his depositing a performance security for
the due and faithful performance of the contract. The performance security amount shall be determined
by the Purchaser/ Engineer commensurate with the incomplete portion of the work/ supply.
The Purchaser will enter into a fresh contract with the legal heir of the Contractor on the same terms
and conditions of the earlier contract.
ARBITRATION:
If at any time, any question, disputes or differences whatsoever shall rise between the Purchaser and
the Contractor, upon or in relation to or in connection with the contract, either party may forthwith give
notice to the other in writing of the existence of such question of dispute or difference and the same
shall be referred to the adjudication of three Arbitrators, one to be nominated by the Purchaser the
other by the Contractor and the third by the President of the International Chamber of Commerce in the
case of foreign contractors and in case of local contractors by the President of the Institution of
Engineers, India/ Retired or Sitting Judge not below the status of a retired Judge of High Court of India.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
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33.2.
If either of the parties fail to appoint its arbitrators within 60 (sixty) days after receipt of notice of the
appointment of arbitrators then President of International Chamber of Commerce or the President of
the Institution of Engineers retired or sitting Judge of India, as the case may be shall have the power at
request of either of the parties, to appoint an Arbitrator. A certified copy of the President of the ICC or
IOE making such an appointment shall be furnished to both parties
The arbitration shall be conducted in accordance with Rules and procedures for Arbitration of the
International Chamber of Commerce (Paris) in the case of foreign contractors as per provisions of the
Arbitration Act 1940 or any statutory modification thereof and in case of local contractors, shall be held
at Guwahati or any other place as may be decided by the Managing Director, APDCL. The decision of
the majority of Arbitrators shall be final & binding upon the parties and the expenses of the arbitration
shall be paid as may be determined by the Arbitrator . However, any dispute arising out of this contract
will first be discussed and settled bilaterally between LAEDCL and the Contractor.
34.0
34.1.
PRECAUTIONS TO BE TAKEN DURING CONSTRUCTIONS/ ERECTION:
The Contractor shall take reasonable and statutory precaution during execution of erection and
construction work so as to avoid accident and damage to equipment and injury to workman and to
prevent theft, pilferage etc.
35.0
35.1.
LIABILITY FOR ACCIDENT AND DAMAGE:
The Contractor shall not claim for compensation arising out of any accident(s) or damages done during
the course of erection & commissioning work & the Contractor will be responsible for paying
compensation to the worker as per Workmen‘s Compensation Act, 1923 and subsequent amendments
thereof. It is further clarified that in case any payment is to be made by the Contractor under the said
Workmen Compensation Act, the same shall be paid forthwith and in case of failure in making such
payments the Purchaser shall make payment and the amount so paid shall be deducted from the bills
of the Contractor.
The Contractor shall adequately insure against liability to third party, in the joint names of the
Employer, the Contractor and the Sub-contractors for any loss, damage, death or bodily injury which
may occur to any physical property owned by others, the goods/ materials of the contract or to any
person which may arise out of the performance of the contract.
35.2.
36.0
36.1.
36.2.
36.3.
36.4.
37.0
37.1.
(a)
(b)
(c)
37.2.
38.0
38.1.
REGULATION OF LOCAL AUTHORITIES:
The Contractor shall abide by the regulation of local Authorities unless such regulation is repugnant to
any terms of the contract agreed upon.
All electrical contractors need to possess a valid ‗Electrical Contractor‘s License‘ from the concerned
Licensing Board, Government of Assam. A tenderer, who has a valid ‗Electrical Contractor‘s License‘
from other states will also qualify for a bidding. However, in such cases the tenderer will have to obtain
the same or an endorsement to that extent, from the Licensing Board of Government of Assam within a
reasonable time from the date of award of contract.
The Contractor is required to fulfil all criteria related to Labour Laws.
The Contractor will also comply with all regulations/ directives of both State & Central Government
Pollution Boards.
SUSPENSION OF BUSINESS DEALINGS WITH FIRMS/ CONTRACTORS:
The Purchaser may suspend business dealings with a Firm/ Contractor, if:
The Central Bureau of Investigation or any other investing agency recommends such a course in
respect of a case under investigation; and if a prima facie case is made out that the firm is guilty of an
offence involving unethical, unlawful, fraudulent means in relation to business dealings, which, if
established, would result in business dealings with it being banned.
The Purchaser has past record of non-performance of the Firm in its previously awarded contracts.
The Purchaser has record of ban against the Firm by other Government / Public sector utility
However, the Purchaser shall give the Firm/ Contractor a fair chance to explain the circumstances of
such previous suspensions.
BANNING OF BUSINESS DEALINGS WITH FIRMS/ CONTRACTORS:
The Purchaser may ban business dealings with a Firm/ Contractor, if:
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
Page 122 of 123
(a)
(b)
(c)
(d)
1.
2.
3.
4.
38.2.
39.0
39.1.
The owner (s) of the Firm/ Contractor is convicted by a court of law following prosecution for offences
involving unethical, unlawful, fraudulent means in relation to business dealings.
There is strong justification that the Firm has been guilty of malpractices ―such as, bribery, corruption,
fraud, substitution of tenders, interpolation, mis-representation, evasion or habitual default in payment
of any Government tax" etc. .
The Firm continuously refuses to return government dues without showing adequate cause and
government are reasonably satisfied that this is not due to reasonable dispute which would attract
proceeding in arbitration or court of law.
The Firm is found guilty of involving in unethical practices, such as:
―corrupt practice‖ involving offering, giving, receiving or soliciting, directly or indirectly, of anything of
value to influence the action of any such official/ party in procurement process or in contract execution.
―fraudulent practice‖ involving misrepresentation or omission of facts in order to influence a
procurement process or the execution of a contract to the detriment of the Employer.
―collusive practice‖ involving a scheme among bidders (prior to or after bid submission) designed to
establish bid prices at artificial non-competitive levels and to deprive the Employer of the benefits of
free and open competition.
―coercive practice‖ involving harming or threatening to harm directly or indirectly, persons or their
property to influence procurement process or the execution of a contract.
The Purchaser may sanction a Firm/ Contractor or its successor, including declaring ineligible,
indefinitely or for a period of not less than 3 (three) years.
LEGAL JURISDICTION:
For any litigation arising out of the contract which cannot be resolved through mutual agreement or
through arbitration, the Guwahati High Court will have the sole jurisdiction.
CGM(D)/APDCL/LAR/LAW UNIV./15-16/D-14
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