Cáp dẫn điện XLPE 76 / 132kV 1Cx800mm2 Cáp cách điện XLPE

Quality Control Standard

ISO 9001

Quality Management Systems

ISO 14001

Environmental Management Systems

Component Material Standard

IEC 60228

Conductors of insulated cables

Cable Standard

IEC 60840

Power cables with extruded insulation and their accessories for rated voltages  above 30 kV (Um = 36 kV) up to 150 kV (Um = 170 kV) – Test methods and requirements

Construction

Nominal Thickness(mm)

Nominal Diameter(mm)

1--- Compacted circular stranded

aluminum Conductor

60/4.23

34.0±0.2

2---Semi-conducting tape

0.14

34.6

3---Conductor screen (lapping +extrusion)

1.2

36.4

4---XLPE insulation

18.0

72.4±1.5

5---Insulation screen

1.0

74.4

6---Semi-conductor blocking tape

2.0

76.4

7--- Copper wire screen with copper tape spiral binder tape

Copper wire screen area 282 mm2

80.9

8--- Semi-conductor blocking tape

0.6

81.9

9--- Aluminum tape coated with PE copolymer

0.21

82.6

10--- HDPE Outer sheath

4.5

91.6

11---Semi-conductor layer

0.6

91.6±3.0

No

DESCRIPTION

UNIT

VALUEREQUIRED

1

Manufacturer

Beijing Huayuan

2

Cable size

mm2

800

2.1

Cable type

AL/XLPE/CWS/AL-PE/HDPE

3.

Voltage Grade(Uo/U(Um)

kV

76/132(145)

4.

Reference Standard

IEC 60228 IEC60840

5.

No. and cross sectional area of conductor

1C 800sqmm

6.

Conductor material

Aluminum

7.

Shape

Circular compact stranded(class 2)

9.

Nominal diameter of conductor

mm

34.0

10.

Conductor Screen materials

Simi-conduction tape + Extruded semi-conducting compound

11.

Nominal thickness of conductor screen

mm

1.2(lapping +extrusion)

12.

Nominal thickness of insulation

mm

18.0

13.

Nominal diameter over insulation

mm

72.4

14.

Insulation screen material

Extruded semi-conducting compound

15.

Nominal thickness of insulation screen

mm

1.0

16.

Metallic Screen material

Copper wire with copper tape binder

17

Short circuit current rating(t=1.0sec)

Of conductor

kA

114.4

Of metal screen

kA

40.2

18

Outer sheath material

HDPE

19

Nominal thickness of outer sheath

mm

4.5

20

Minimum thickness of outer sheath

mm

3.7

21.

Nominal overall diameter of cable

mm

91.6

22.

Approx. weight of cable

Kg/km

9590

23

Minimum bending radius

mm

1830

24

Max.D.C. Conductor resistance at 20`C

Ω/km

0.0221

25.

Capacitance per phase

uF/km

0.194

26

1 circuit ,air temperature 40 ℃, ground  temperature 25 ℃, phase spacing  250mm, flat formation depth  of laying 1200 mm ,thermal resistivity of soil 1.2 k.m/W; 

27

Max. current rating in air(at 40 ℃)

A

1271

28.

Max. current rating in ground (at 25 ℃)

A

1023

29.

Max. conductor temperature on continuous

℃

90

30.

Max. conductor temperature in short circuit

℃

250(not exceed 5s)

No.

Test item

Routine tests

1

Partial discharge test

2

Voltage test

3

electrical test on over sheath of the cable

Sample tests

1

conductor examination

2

measurement of electrical resistance of conductor and of metal screen

3

measurement of thickness of insulation and over sheath

4

measurement of thickness of metal sheath

5

measurement of diameters

6

hot set test for XLPE insulation

7

measurement of capacitance

8

Lightning impulse voltage test(This test is only required for cables with a nominal electric conductor stress > 8,0 kV/mm)

9

Water penetration test

Cable Type

Drum length(m)

Drum Dimensions (mm)

D

d

b

B

AL/XLPE/CWS/AL-PE/HDPE-76/132kV-1C*800mm2

500

3000

2000

1950

2200