64/110 (123) kv Cáp cách điện XLPE với Báo cáo thử nghiệm KEMA

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

Structure

Nominal thickness

mm

Nominal diameter mm

1 Circular compact stranded copper conductor

60/2.97

23.2±0.2

2 semi-conductive tape

0.14

23.8

3 Conductor screen(wrapping & extruding)

1.2

25.6

4 XLPE insulation

17.5

60.6(-1.0,+1.5)

5 Insulation screen

1.0

62.6

6 semi-conductive water blocking tape

2.0

64.6

7 Aluminum wire screen with

aluminum tape wrapping(gap)

Sectional area 289mm2

69.9

8 semi-conductive water blocking tape

0.6

70.9

9 AL-PE tape

0.21

71.6

10 HDPE outer sheath

4.0

79.6

11 semi-conductive layer (graphite coating)

79.6±3.0

Structure

Nominal thickness mm

Nominal diameter mm

1 Five(5) Milliken (segmental) copper conductor

5*(91/2.48)

54.7±1.0

2 semi-conductive tape

0.14

55.3

3 Conductor screen(wrapping & extruding)

2.0

58.7

4 XLPE insulation

16.0

90.7(-1.5,+1.0)

5 Insulation screen

1.0

92.7

6 semi-conductive water blocking tape

2.0

94.7

7 Aluminum wire screen with

aluminum tape wrapping(gap)

Sectional area 275mm2

100.0

8 semi-conductive water blocking tape

0.6

101.0

9 AL-PE tape

0.21

101.7

10 HDPE outer sheath

5.0

111.7

11 semi-conductive layer (graphite coating)

111.7±3.0

No

DESCRIPTION

UNIT

VALUEREQUIRED

1

Manufacturer

Beijing Huayuan 

2

Cable size

mm2

400(nominal)

3

Cable type

CU/XLPE/AWS/AL-PE/HDPE

4

Voltage Grade(U0/U(Um)

KV

64/110(123)

5

Reference Standard

IEC 60840

6

No. and cross sectional area of conductor

1C 400sqmm

7

Conductor material

Copper

8

Shape

Circular compact stranded

9

Nominal diameter of conductor

mm

23.2

10

Conductor Screen materials

Simi-conduction tape + Extruded semi-conducting compound

11

Nominal thickness of conductor screen

mm

1.2(wrapping + extruding)

12

Insulation material

super clean XLPE

13

Nominal thickness of insulation

mm

17.5

14

Nominal diameter over insulation

mm

60.6

15

Insulation screen material

Extruded semi-conducting compound

16

Nominal thickness of insulation screen

mm

1.0

17

Metallic Screen material

aluminum wire screen with aluminum  spiral binder tape (gap)

18

Short circuit current rating(t=1.0sec)

Of conductor

kA

57.8

Of metallic screen

kA

28.5

19

Outer sheath material

HDPE

20

Nominal thickness of outer sheath

mm

4.0

21

Nominal overall diameter of cable

mm

79.6

22

Approx. weight of cable

kg/km

7960

23

Minimum bending radius

mm

1600

24

Max.D.C. Conductor resistance at20`C

Ω/km

0.0470

25

Nominal capacitance per phase

uF/km

0.155

26

Max. current rating in air at  40° C

A

752(1 circuit ,phase spacing  250, flat formation, a point earthed or cross connected)

27

Max. current rating in ground at 25° C

A

721(1 circuit ,phase spacing  250, flat formation, a point earthed or cross connected ,depth of laying 1200 mm ,thermal resistivity of soil 1.2 k.m/W,25℃)

28

Max. conductor temperature on continuous

℃

90

29

Max. conductor temperature in short circuit

℃

250(not exceed 5s)

No

DESCRIPTION

UNIT

VALUEREQUIRED

1

Manufacturer

Beijing Huayuan 

2

Cable size

mm2

2000(nominal)

3

Cable type

CU/XLPE/AWS/AL-PE/HDPE

4

Voltage Grade(U0/U(Um)

KV

64/110(123)

5

Reference Standard

IEC 60840

6

No. and cross sectional area of conductor

1C 2000sqmm

7

Conductor material

Copper

8

Shape

Five(5) Milliken (segmental)

9

Nominal diameter of conductor

mm

54.7

10

Conductor Screen materials

Simi-conduction tape + Extruded semi-conducting compound

11

Nominal thickness of conductor screen

mm

2.0(wrapping + extruding)

12

Insulation material

super clean XLPE

13

Nominal thickness of insulation

mm

16.0

14

Nominal diameter over insulation

mm

90.7

15

Insulation screen material

Extruded semi-conducting compound

16

Nominal thickness of insulation screen

mm

1.0

17

Metallic Screen material

aluminum wire screen with aluminum  spiral binder tape (gap)

18

Short circuit current rating(t=1.0sec)

Of conductor

kA

287.4

Of metallic screen

kA

26.2

19

Outer sheath material

HDPE

20

Nominal thickness of outer sheath

mm

5.0

21

Nominal overall diameter of cable

mm

111.7

22

Approx. weight of cable

kg/km

24590

23

Minimum bending radius

mm

2240

24

Max.D.C. Conductor resistance at20`C

Ω/km

0.009

25

Nominal capacitance per phase

uF/km

0.306

26

Max. current rating in air at  40° C

A

1984(1 circuit ,phase spacing  250, flat formation, a point earthed or cross connected)

27

Max. current rating in ground at 25° C

A

1597(1 circuit ,phase spacing  250, flat formation, a point earthed or cross connected ,depth of laying 1200 mm ,thermal resistivity of soil 1.2 k.m/W,25℃)

28

Max. conductor temperature on continuous

℃

90

29

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/sheath

3

measurement of thickness of insulation and oversheath

4

measurement of thickness of metal sheath

5

measurement of diameters

6

hot set test for XLPE  insulation

7

measurement of capacitance

Cable Type

Drum length(m)

Drum Dimensions (mm)

D

d

b

B

CU/XLPE/AWS/HDPE 64/110kV

1× 400 mm2

900

3200

2000

1950

2200

CU/XLPE/AWS/HDPE 64/110kV

1× 2000 mm2

400

3600

2600

1950

2200