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� ला� ़मा अनुसंधान सं� थानINSTITUTE FOR PLASMA RESEARCH

परमाणु ऊजा� �वभाग, भारत सरकार का एक सहायता �ा� तसं�थान

An Aided Institute of Department of Atomic Energy,

Government of India

इि�दरा पुल के पास, भाट, गांधीनगर – 382 428 भारतदरूभाष: (079) 2396 2020/2021/2028

फै�स: 91-079-23962277

वेब: www.ipr.res.in

NEAR INDIRA BRIDGE, BHATDIST. GANDHINAGAR - 382 428 (INDIA)

Phone: (079) 2396 2020/2021/2028 Fax : 91-079-23962277

Web : www.ipr.res.in

ENQUIRY

ENQUIRY NO : IPR/EQL/18-19/096

Date : 26-06-2018

Due on : 19-07-2018 by 1:00 PM IST

Please send your offer in sealed envelope specifying Enquiry No, Date & Due Date, ALONG

WITH your credentials for the following items:

Important Note:

Please note that e-mail quotations are not acceptable however you may send your queries (if

any) to localpurchase@ipr.res.in

Please ensure your sealed quotation reaches this office not later than above mentioned due

date and time.

Kindly go through the following documents properly before quoting which are available on the

IPR web portal i.e., http://www.ipr.res.in/documents/tender_terms.html / attached herewith.

1) Instructions to the bidders & Terms and conditions (refer Form No: IPR-LP-01.V4)

2) Bidding format

GST for Goods and Services (IGST/CGST/SGST TAX BENEFITS): Please refer clause no: 8

of Form No: IPR-LP-01.V4

QUOTATION SHOULD BE ADDRESSED TO PURCHASE OFFICER ONLY

Sr No

Description Quantity

1 Single core, non-sheathed, LV cables/cord with flexible conductors as per

attached specification

2000.0 Mtrs.

2 Single core, XLPE insulated, 33kV class HV cable as per attached

specification

500.0 Mtrs.

Note: (1). 90% of order value will be made against delivery of

material at IPR site and its verification by IPR representative.

Balance 10% will be made within 30 days from the date of

acceptance and on receipt of Performance Bank Guarantee

for 10% of the order value from SBI/nationalized/scheduled

bank (Scheduled banks acceptable to IPR are Axis Bank,

HDFC Bank, ICICI Bank and IDBI Bank) valid throughout the

warranty period.

(2). Please quote with complete technical details (Technical

compliance sheet and product data sheet).

Encl: As per attachment.

PDF processed with CutePDF evaluation edition www.CutePDF.com

Sd/-

Mr. D. Ramesh

Purchase Officer-II

Information to Vendors: We are working towards a single platform for our future

requirement. Hence, please refer IPR website i.e,

http://www.ipr.res.in/documents/tendersenq.html for our future requirement.

Technical specification for Single core LV cables/cord with flexible

conductor and single core, XLPE insulated, 33kV Cable Note: Bidder can submit their offer for any one item or for both the items

Specification for Single core, XLPE insulated, 33kV class HV cable

1. SCOPE:

This specification scope covers supply, inspection and testing of Single core XLPE-insulated

cable with FRLS PVC-sheath, circular-stranded-compacted copper conductor with nominal

cross section of 95mm2, covered with copper-screen 35mm2 and rated voltage (U0/U)

19/33kV. Additional helical wound copper tape with 3kV isolation over screen shall be

provided.

2. CODES AND STANDARDS:

The design, material, manufacturing, inspection, and testing of cable shall comply with all

currently applicable statutes, regulations and safety codes in the locality where the

equipment shall be installed. Indian Standard for XLPE power cable as per relevant IEC and

IS standards, some of the reference standards are listed below:

Parameters Applicable standards

Conductor Stranded, compacted class -2 –copper– IS 8130 / IEC 60228

Conductor screen Extruded semi-conducting compound – IS 7098-2, IEC 60502-2

Insulation XLPE – IS 7098-2, IEC 60502-2

Insulation screen Extruded semi-conducting compound, copper wires and tape – IS

7098-2, IEC 60502-2

Inner sheath PVC ST 2 as per IS 7098 – 2, IEC 60502-2 with copper tape

Outer sheath PVC ST 2, FRLS – IS 7098, IEC 60502

3. DESIGN & CONSTRUCTION FEATURES:

i. Conductor:

The cable conductor shall be class 2 of circular shape, stranded compacted copper conductor

having nominal cross section area of 95mm2. Copper conductor shall comply with IS 8130

or IEC 60228 standard.

ii. Conductor Screening:

Conductor screening shall be non-metallic and shall consist of a layer of extruded Semi

conducting compound, which shall be firmly bonded to the inner surface of the insulation.

The contact of the semi-conducting shields with the cable insulation must be perfect without

void creation at the inner surfaces. The interfaces must be smooth in a regular geometric

shape and the semi conducting compound must have homogeneous structure particularly at

the interfaces.

Page 2 of 9

iii. Insulation

Electrical grade cross linked polyethylene (XLPE) shall be extruded in simultaneous

extrusion of conductor screening layer and insulation screening layer and shall be suitably

cured. The nominal thickness of the XLPE insulation shall as per IS 7098-2 and shall

be guaranteed by the manufacturer to withstand the specified test voltages between

conductor and insulation screen.

iv. Insulation screening (Extruded semi-conductive, copper wire with tape

and water swell-able tape)

The insulation screening shall consist of a layer of extruded semi-conducting

compound provided over the insulation simultaneously with the extrusion of the

insulation.

Metallic screen consist of helically wound copper wires and tape shall be provided over

semi-conducting screen. Equivalent cross-section area of the metallic screen shall be

35mm2. Copper tape must be overlapped to make good electrical contact among tape itself

and tape to copper wires.

Layer of wrapped semi-conductive water swell-able tape shall be provided between

insulation screen and copper wire. Also layer of wrapped plain water swell-able tape shall be

provided between copper tape and inner sheath.

Metallic screen shall be earthed during normal operation.

v. Inner-Sheath

Extruded PVC inner Sheath shall be provided. The inner-sheath shall be suitable to withstand

the site conditions and the desired temperature. The material of inner-sheath shall be

compatible with temperature rating of the cable. Inner sheath shall provide minimum 3kV

electrical isolation between insulation screen and additional copper screen provided over

inner sheath.

vi. Additional Copper screen

Layer of wrapped copper tape screened shall be provided over inner-sheath. Inner-sheath

insulation shall provide minimum 3kV isolation between insulation screen and copper

screen. To verify the electrical isolation test shall be conducted at factory.

vii. Outer-Sheath:

The outer sheath shall be of fire resistant low smoke of extruded PVC material. Color of the

outer-sheath shall be black.

4. Principal Parameters:

i. General

Single core XLPE-insulated cable with FRLS PVC-sheath, circular-stranded-compacted

copper conductor with nominal cross-section of 95mm2, covered with copper-screen 35mm2

and rated voltage (U0/U) 19/33kV. Additional helical wound copper tape with 3kV isolation

over screen shall be provided.

Page 3 of 9

ii. Current Rating

Sr.

No

Cable Size Core Continuous Current Carrying

capacity (A) (minimum)

Short Circuit Current

Ratings @ 1s (kA)

Air Ground

1. 95 mm2 1 250 200 13

iii. Technical parameter:

Sr. No. Parameter Unit Value

1. Voltage grade [Uo/U(Um)] kV 19/33(36)

2. System frequency Hz 50

3. Maximum allowable temperature of conductor

during continuous normal operation at rated full load

°C 90

4. Maximum allowable temperature under short circuit

condition

°C 250

5. Lightning impulse withstand voltage kVp 170

6. Power frequency withstand voltage:

a. For 5 min. duration kVrms 63

b. For 4h duration kV 76

7. Isolation between insulation screen and additional

copper tape

kV 3

8. System earthing - Outer insulation

screens shall be

earthed

5. Schedule of Quantity:

Quantity of the cable is 500 meters and shall be provided complete length of cable on single

non-returnable cable drum

6. Tests:

In case of order, routine test and acceptance test report to be submitted for review before

dispatch. Purchaser reserve the right to witness these test at factory before dispatch. Standard

for the test is IS 7098-2 or IEC 60502-2.

7. Length:

The cable shall be supplied in standard drum length, + 5% tolerance shall be accepted.

8. Cable Drum:

Cable shall be supplied in specified non-returnable drums.

The drums shall be of heavy construction. All wooden components shall be manufactured

from seasoned wood. All ferrous parts used shall be treated with a suitable rust preventive

finish or coating to avoid rusting during transit or storage.

Page 4 of 9

9. PACKING AND TRANSPORT:

The cable shall be placed on drums in such a manner that it will be protected from damage

during transit. Each end of the cable shall be firmly and properly secured to the drum. The end

of each length shall be sealed before shipment. The drums shall be secured firmly in position so

that they will not shift during transit.

The labels shall be securely attached to drum indicating the purchaser's order number, length of

cable, size of conductor, number of cores, type of cable and voltage grade for which it is

suitable. An arrow and suitable accompanying wording shall be marked on one end of the drum

indicating the direction in which it should be rolled. Packing and marking shall be in

accordance with IS : 7098 (PART - I).

10. PREFERRED LIST OF MAKES:

Finolex, Havells, Torrent, KEI, Polycab, RR cables, Uniflex , KEC

Page 5 of 9

Specification for Single core, un-sheathed, LV cables/cord with flexible conductor

1. Scope:

This specification scope covers supply of 25mm2, Plain annealed copper conductor, single

core, non-sheathed cables/cord with flexible conductors with voltage class 450/750 V or

1100V as per IS 694

2. Codes and standards:

The design, material, manufacture, inspection, and testing of cable shall comply with all

currently applicable statutes, regulations and safety codes in the locality where the

equipment shall be installed. Indian Standard for low voltage, non-sheathed cables/cord as

per relevant IEC and IS standards, some of the reference standards are listed below:

Parameters Applicable standards

Conductor Plain annealed copper conductor as per class 5 of IS 8130

Insulation PVC with FR properties as per IS - 694

3. Design and Construction features:

i. Conductor material:

The cable conductor shall Plain annealed copper conductor as per class 5 of IS 8130 and in

circular shape.

ii. Conductor insulation:

Conductor insulation shall be polyvinyl chloride compound of fire performance category FR.

The insulation shall be so applied that it fits closely on the conductor. Thickness of insulation

shall be as per IS 694

iii. General construction feature:

Insulation thickness, overall diameter, conductor resistance and mechanical property shall be

as per IS 694. Current rating in air shall be minimum 70A

4. Schedule of quantity:

RED color – 800 meter

YELLOW color – 600 meter

BLUE color – 600 meter

5. TESTS:

In case of order, routine test and acceptance test report to be submitted for review before

dispatch.

6. PREFERRED LIST OF MAKES:

Finolex, Havells, Torrent, KEI, Polycab, RR cables, Uniflex , KEC

Page 6 of 9

ANNEXURES

A – Data Sheet for single core, 95mm2, HV cable

Sr. No. Parameters Data

1. Manufacturer's name and type

2. Applicable standard

3. Voltage Grade (kV)

4. Whether offered cable suitable for earthed screens

configuration

5. Conductor :

a) Material

b) Material hardness

c) Number of strands

d) Diameter of each strands (mm)

e) Nominal cross sectional areas (sq. mm.)

f) Overall diameter of the conductor

g) Maximum DC resistance of conductor (ohm)

At 20 ˚C

At 90 ˚C

h) Temperature coefficient of resistance

i) Maximum conductor temperature (oC) at rated

current

j) Applicable standard

6. Conductor Screening:

a) material of screen

b) method of screening

c) thickness of screen (mm)

d) outer diameter of screen (mm)

applicable standard

7. Conductor insulation :

a) Material & its composition

b) Whether extruded?

c) Thickness of insulation(mm)

d) Outer diameter of the insulation(mm)

e) Applicable standard

Page 7 of 9

Sr. No. Parameters Data

8. Insulation screening:

a) Whether provided?

b) Material of screen

c) Method of screen

d) Thickness of screen(mm)

e) Outer diameter of screen (mm)

f) Whether copper conductor with copper tape

provided for screen?

g) Total cross-section area of the copper conductor and

tape

h) Whether water showable tape provided as per

specification?

Applicable standard

9. Inner sheath :

a) Material & its composition

b) Whether extruded?

c) Type of inner sheath as per IS 5831

d) Thickness of insulation(mm)

e) Outer diameter of insulation(mm)

f) Applicable standard

10. Whether additional helical wound copper tape with 3kV

isolation over screen is provided?

11. Outer sheath :

a) Material & its composition

b) Whether extruded?

c) Type of outer sheath as per IS 5831

d) Whether filler material used?

e) Material used for filler

f) Thickness of outer sheath(mm)

g) Outer diameter of outer sheath(mm)

h) Applicable standard

12. Weight of finished cable (kg/km)

13. Reactance of the cable per phase at 50 Hz. (ohm/km)

14. Electrostatic capacitance per phase (micro F/km)

15. Conductor resistance of the cable at 20 C (/km)

16. Insulation resistance of the cable at 20 C (/km)

17. Recommended minimum bending radius (m)

18. Loss tangent at rated voltage at 50 Hz.

19. Dielectric constant of conductor insulation

20. Safe pulling force when pulled by pulling eyes (kN)

21. Current Rating :

a) Continuos current rating with single cable at rated

conditions with temperature at 90 oC laid in

- Air (A)

- Ground (A)

Page 8 of 9

B – Data sheet for 25mm2, non-sheathed LV cable

Sr. No. Parameters Data

1. Manufacturer's name and type

2. Applicable standard

3. Voltage Grade

4. Conductor :

a) Material ( Al/Cu)

b) Material hardness

c) Number of strands

d) Diameter of each strands (mm)

e) Nominal cross sectional areas (sq. mm.)

f) Overall diameter of the conductor

g) Maximum conductor temperature (oC) at rated

current

j) Applicable standard

5. Conductor insulation :

a) Material & its composition

b) Whether extruded?

c) Thickness of insulation(mm)

d) Outer diameter of the insulation(mm)

e) Applicable standard

6. Weight of finished cable (kg/km)

7. Overall diameter of cable

8. a) Conductor resistance of the cable at 20 C (/km)

b) Temperature coefficient of resistance

9. Insulation resistance of the cable at 20 C (/km)

10. Recommended minimum bending radius (m)

11. Dielectric constant of conductor insulation

12. Current Rating :

b) Continues current rating with single cable at rated

conditions with temperature at 90 oC laid in air

Page 9 of 9

C – Price bid format

(Bidders are requested to offer their price bids in the following format)

Sr.

No.

Description Unit Qty. Rate

Rs./Unit

Amount

(Rs.)

1. Single core XLPE-insulated cable with FRLS

PVC-sheath, circular-stranded-compacted copper

conductor with nominal cross section of 95mm2,

covered with copper-screen 35mm2 and rated

voltage (U0/U) 19/33kV. Additional helical

wound copper tape with 3kV isolation over scree

shall be provided.

Mtr.

500

2. Single core, 25mm2, Plain annealed copper

conductor, non-sheathed cables/cord with flexible

conductors with voltage class 450/750 V or 1100V

as per IS 694

(a) RED color

(b) YELLOW color

(c) BLUE color

Mtr.

800

600

600

- Bidder must submit specification for the offered product, duly filled in attached table

along with bid

- Bidder must submit the catalogue for the offered product along with bid.