Copper Conductor Middle Voltage Electric Cable Concentric Neutral Cable 12kv

NO.

ITEM

UNIT

DATA

1

Name of Manufacturer:

Hebei New Baofeng Wire

& Cable Co.,Ltd.

1.2

Country of Manufacturer:

China

2

Which type of manufacturing process viz. Continuous Catanery Vulcanisation (CCV) or vertical Catanery Vulcanisation system (VCV) or horizontal MDCV will be used to ensure circularity and concentricity of the extruded layers around the conductor.

CCV

3

Type of Cable:

CU/XLPE/CWS/MDPE

4

Rated nominal voltage

kV

6.9/12

5

Rated Maximum voltage

kV

13.2

6

Nominal cross-sectional area of Conductor

Sq.mm

70

7

Conductor

7.1

Material

Copper

7.2

 Shape & formation

Round

7.3

 Diameter of conductor

mm

10.0

7.4

Dia.Of Single Wire/Number of strands

mm

2.17/19

8

Conductor Screen

8.1

Material

semi conductive material

8.2

Thickness of semi-conductor  screen

mm

0.8

8.3

Diameter of Semi-conductor(Approx.)

mm

11.6

9

Insulation

9.1

Material

XLPE

9.2

Insulation Thickness(Min.Avg.)

mm

5.5

9.3

Diameter of Insulation(Approx.)

mm

22.6

10

Insulation Screen

10.1

Material

Strippable Semi-conductive material

10.2

Insulation Screen Thickness(Nominal.)

mm

1.4

10.3

Diameter of insulation screen(Approx.)

mm

25.4

11

 Metallic Screen:

11.1

Material

Copper wire

11.2

Diameter / thickness of the metallic screen

mm

1.29+0.8

11.3

 Diameter of the cable across the metallic screen(Approx.)

mm

28.2

12

Outer Sheath

13.1

Material

LLDPE

13.2

Colour of outer sheath

Black

13.3

Outer Sheath Thickness(Nominal)

2.0

12.4

Over Diameter(Approx.)

32.2

14

Conductor Weight

kg/km

598

14.1

Total Cable Weight (Approx.)

kg/km

1465

15

Minimum Bending Radius

15.1

During Installation

mm

600

15.2

Installed

mm

500

16

Maximum Pulling Tension

16.1

Of Conductor

kN

4.9

17

 Continuous current rating under the specified installation and operating conditions. Conductor temperature 90° C , air temperature 35° C  . Ground    temperature 25° C    and    depth    of laying 1500 mm

17.1

In Air

Amp

145

17.2

In Ground

Amp

112

17.3

In pipeline

Amp

101

18

Maximum value of electric stresses at the conductor screen (Calculation to be shown separately)

kV/mm

1.78

19

Maximum value of dielectric stress at the insulation

kV/mm

0.92

20

Short circuit capacity of conductor for 1/2/3    second assuming    conductor temperature of 90 ° C prior to short    circuit and 250 ° C during short circuit

20.1

1.0 Secs

kA

10.0

20.2

2.0 Secs

kA

7.1

20.3

3.0 Secs

kA

5.8

21

Short circuit capacity of metallic screen    for    1/2/3 second     at     screen temperature of 80 ° C prior to short circuit    and 200 ° C during short circuit

21.1

1.0 Secs

kA

3.3

21.2

2.0 Secs

kA

2.4

21.3

3.0 Secs

kA

2.0

22

Screen voltage under maximum operating conditions assuming all circuits connected

kV per km

0.05

23

TEST

23.1

Maximum D.C. resistance of conductor  per km. at 20 degree C.

Ohm

0.268

23.2

Maximum A.C. resistance of conductor per km. at 90 degree C.

Ohm

0.312

23.3

 Maximum electrostatic capacitance per km. of cable.

μF

0.187

23.4

Partial discharge at 1.50 Uo

pc

≤ 10

23.5

A.C.  Enduring Test voltage 2.5U₀/ minutes

kV/mim

35/5

23.6

D.C.Out sheath  Enduring Test voltage

kV/mim

7kV/1min

23.7

Impulse test voltage

kV

110

24

Approximate drum dimension (dia & width)

mm/mm

2000*1400

25

Maximum length of cable in a drum (Metres)

m

2000

26

Minimum length of cable in a drum  (Metres)

m

1650

27

Approximate gross weight of cable in a drum

TON

2.5

28

Expected Cable life.

Year

30

Description

Unit

Manufacturer's Data

1)Design/Test Standards

ICEA S-94-649-2004

2)Cable Characteristics

copper

Conductor Materials

mm2

70

Conductor Shield Thickness

mm

0.6

Insulation Material

XLPE

Insulation Shield Thickness

mm

1.4

Concentric Neutral

No. of Strands/diameter

32/1.63

Lay

150mm

Jacket Material

LLDPE

Weight

kg/m

1898

DC Resistance at 20℃

Ω/km

0.268

3)Marking Provided

Yes/No

YES

4)Packaging

Type of drum

steel

Length of cable/drum

Construction

Thickness(mm)

Diameter(mm)

1—— Copper Conductor

10.0(+0.1,-0.1)

2—— Conductor screen

0.8

11.6

3—— XLPE Insulation

5.5

22.6(+0.5,-0.5)

4—— Insulation screen

1.4

25.4

6—— copper wire screen +copper tape

1.29+0.8

28.2

7—— MDPE outer sheath

2.0

32.2(+2.0,-2.0)