33 KV Data Sheet

7/29/2019 33 KV Data Sheet

1/4

LARSEN & TOUBRO

LTD.

CAPTIVE POWER PLANT

PANIPAT NAPHTHA CRACKER PROJECT,

INDIAN OIL CORPORATION LTD.L&T SARGENT & LUNDY

LTD.

TITLE: TECHNICAL SPECIFICATION FOR HT CABLES

[33kV (E) CABLES]

Doc. No. :

6556-EPCC4-52-SP-E-0016

Rev.: 1

LOI No.:IOCL/PUR/SU/E19/254

Dated 23.03.07

Item

No. Description Units

1 C x 240 1 C x 300 1 C x 400

1 Manufacturer Polycab Wires Pvt. Limited .Daman

2 Voltage Grade kV 19 / 33 19 / 33 19 / 333 Cable sizes and no. of core 1 C x 240 1 C x 300 1 C x 400

4 Type designation 2XWaY 2XWaY 2XWaY

5 Applicable standard I S 7098 ( PART - II ) / 85

6 Conductor

a) Nominal area and

constructionmm2 240 300 400

b) Shape of conductor Compact Circular

c) Number and dia of

strands (Nom.)35 / 3.08 35 / 3.4 57 / 3.06

d) Material and grade Annealed Bare Copper

e) Max. D.C. resistance at

20C (/km)0.0754 0.0601 0.0470

7

Normal current rating of

cable circuit under as

installed conditions in

air at ambient

temperature of 45oC

A 570 655 750

8

Estimated conductor

temperature under as

installed condition

0C 90

9

Conductor short circuit

carrying capacity for one

(1) sec cable loaded as item

7 before short circuit :

a) Short circuit current kA 34.3 42.9 57.1

b) Conductor temperature 0C 250

10 Conductor screen:

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2/4

LARSEN & TOUBRO

LTD.

CAPTIVE POWER PLANT



LTD.


[33kV (E) CABLES]

Doc. No. :

6556-EPCC4-52-SP-E-0016

Rev.: 1


Dated 23.03.07

a) Type of material Semi conducting XLPE Compound

b) Nominal Thickness mm 0.5

c)Method of application By Extrusion

11 Insulation

a) Material XLPE Compound

b) Nominal thickness mm 8.8

c) Tolerance on

insulation thickness

The Smallest value of insulation thickness shall not fall

below the Nom. Value by 0.1 + 0.1 ti , where ti is the Nom.

Values given above.

d) Type of extrusion and

curing processTriple Extrusion and Dry Curing.

e)Estimated cable

insulation temperature

under as installed

condition

0C The Respective ground or Air temperature at Site

f) Identification of cores NA NA NAg) Dia under inner sheath

(approx.) mmmm 43.0 45.0 48.0

12 Insulation Screen

a) Material Semi conducting XLPE Compound

b) Nominal thickness mm 0.5

c) Method of application By Extrusion

13 Metallic screen

a) Screen or metallic

sheath short circuit carryingcapacity for one (1) sec

cable loaded as item 7

before short circuit.

kA 17.9

b) Recommended screen or

sheath temperatureC 80 C

c) Material and Type Annealed Plain Copper Wires

14 Inner sheath :

a) Material & Type PVC Type "ST2" as per IS 5831 / 84

b) Minimum thickness mm 0.5 0.5 0.5

c) Tolerance on thicknessNO Tolerance . The above Mentioned Minimum Shall be

met.

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3/4

LARSEN & TOUBRO

LTD.

CAPTIVE POWER PLANT



LTD.


[33kV (E) CABLES]

Doc. No. :

6556-EPCC4-52-SP-E-0016

Rev.: 1


Dated 23.03.07

d) Wrapped or Extruded Extruded

e) Colour of sheath Black

f) Filler material Not Applicable

g) Dia below Armour (if

applicable) Approx. mm44.2 46.2 49.2

15 Armour (if applicable)

a) Material Hard Aluminium Wires

b) Round wire / strip Round wires

c) No. and Dimension of

round wire / strip(approx.)50 52 55

d) Dimension ( mm ) 2.5 2.5 2.5

e) Max.Resistance (DC) at

20c / km 0.130 0.125 0.118

f) Diameter. below outersheath ( Approx. ) mm

49.2 51.2 54.2

16 Outer Sheath :

a) Material & Type PVC Type "ST2" ( FRLS ) to IS 5831 / 84

b) Colour of outer sheath Black

c) Minimum thickness of

outer sheathmm 1.88 2.04 2.04

d) Tolerance on thicknessNO Tolerance . The above Mentioned Minimum Shall be

met.

17

Electrical parameters at

maximum operating

temperature :

( i ) Resistance / km 0.0975 0.0783 0.0622

( ii )Reactance / km 0.1233 0.1216 0.1161

(iii) Capacitance F/km 0.217 0.234 0.259

(iv) Impedance / km 0.1572 0.1446 0.1317

18 Guaranteed value of

minimum oxygen index of

outer sheath to ASTMD

29

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4/4

LARSEN & TOUBRO

LTD.

CAPTIVE POWER PLANT



LTD.


[33kV (E) CABLES]

Doc. No. :

6556-EPCC4-52-SP-E-0016

Rev.: 1


Dated 23.03.07

2863.

19

Maximum acid-gas

generation by weight (%) of

outer sheath to IEC 754-1.

20

20Minimum light transmission

to ASTMD 2843.40

21Approx. weight of finished

cable (kg/km)Kg/km 5350 6175 7270

22 O .D . ( Approx. ) mm mm 54 56 59

23Recommended minimum

bending radiusxD 20 x O D

24Maximum pulling force for

each cablekN 12 15 20

25 Type test reports enclosedYes /

NoYes

26 Catalogue attachedYes /

NoYes

27Type of Drum (Wooden /

Steel)Wooden

28Standard length per drum

(EIL's.) - Mts.1000 3 % 1000 3 % 1000 3 %

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33 KV Data Sheet

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