Cáp quang cách điện XLPE 1 × 2000 / 240mm2 đơn lõi

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 62067

Power cables with extruded insulation and their accessories for rated voltages above 150 kV (Um = 170 kV) up to 500 kV (Um = 550 kV) - Test methods and requirements

Structure

Nominal thickness mm

Nominal diameter mm

1 Copper conductor(5 Segmental)

/

54.7±1.0

2 semi-conductive tape

0.14

55.7

3 conductor screen(wrapping & extruding)

2.5

59.7

4 XLPE insulation

28.0

115.7±1.5

5 Insulation screen

1.0

118.7

6 semi-conductive water blocking tape

2.0

120.7

7 Copper wire screen with

Copper tape wrapping(gap)

Sectional area 240. mm2(calculation value)

125.2

8 semi-conductive water blocking tape

0.6

126.2

11 Aluminum-polyethylene tape

0.21

126.9

12 HDPE outer sheath

6.0

138.9

13 semi-conductive layer(graphite coating)

138.9±3.0

No

DESCRIPTION

UNIT

VALUEREQUIRED

1

Manufacturer

Beijing Huayuan Gaoke Cable Co.,Ltd.

2

Cable size

mm2

2000(nominal)

3

Cable type

CU/XLPE/CWS/AL-PE/HDPE

4

Voltage Grade(U0/U(Um)

KV

220/400(420)

5

Reference Standard

IEC 62067

6

No. and cross sectional area of conductor

1C 2000sqmm

7

Conductor material

Copper

8

Shape

5 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

2.5(wrapping +extruding)

12

Insulation material

super clean XLPE

13

Nominal thickness of insulation

mm

28.0

14

Nominal diameter over insulation

mm

115.7

15

Insulation screen material

Extruded semi-conducting compound

16

Nominal thickness of insulation screen

mm

1.0

17

Metallic Screen material

Copper wire screen with copper  spiral binder tape (gap)

18

Short circuit current rating(t=1.0sec)

Of conductor

kA

287.4

Of metallic screen

kA

34.2

19

Outer sheath material

HDPE

20

Nominal thickness of outer sheath

mm

6.0

21

Nominal overall diameter of cable

mm

138.9

22

Approx. weight of cable

kg/km

30920

23

Minimum bending radius

mm

2780

24

Max.D.C. Conductor resistance at20`C

Ω/km

0.009

25

Nominal capacitance per phase

uF/km

0.202

26

Max. current rating in air at  40° C

A

2045(2 circuit ,phase spacing 300, flat formation, a point earthed or cross connected)

27

Max. current rating in ground at 25° C

A

1507(2circuit ,phase spacing  300, flat formation, a point earthed or cross connected ,depth of laying 1000 mm ,thermal resistivity of soil 1.2 k.m/W)

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 oversheath 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