290/500 (550) kv 1x1600mm2 điện áp cao cách điện XLPE cáp điện

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)

/

48.7± 0.6

2 Semi-conductor tape

0.14

49.7

3 Conductor screen (wrapping +extruding)

2.5

53.7

4 XLPE insulation

32.0

117.7(-1.5,+1.5)

5 Insulation screen

1.5

120.7

6 Semi-conductor water blocking tape

2.0

129.4

7 Corrugated aluminum sheath(Welding)

3.1

149.5

8 Corrosion resistant layer (Asphalt )

0.25

150.0

9 PVC Outer jacket

6.0

162.0

10 Graphite coating

162.0±3.0

No

DESCRIPTION

UNIT

VALUEREQUIRED

1

Manufacturer

Beijing Huayuan

2

Cable size

mm2

1600

3

Cable type

CU/XLPE/CAS/PVC

4

Voltage Grade(U0/U(Um)

KV

290/500(550)

5

Reference Standard

IEC 62067 IEC60228

6

No. and cross sectional area of conductor

1C 1600mm2

7

Conductor material

Copper

8

Shape

5 segmental

9

Nominal diameter of conductor

mm

48.7

10

Conductor Screen materials

Simi-conduction tape + Extruded semi-conducting compound

11

Nominal thickness of conductor screen

mm

2.5(wrapping +extrusion)

12

Insulation material

XLPE

13

Nominal thickness of insulation

mm

32.0

14

Nominal diameter over insulation

mm

117.7

15

Insulation screen material

Extruded semi-conducting compound

16

Nominal thickness of insulation screen

mm

1.5

17

Materials metallic Sheath

Aluminum(welding)

18

Nominal thickness of metallic sheath

mm

3.1

19

Short circuit current rating(t=1.0sec)

Of conductor

kA

230

Of metal screen with metal sheath

kA

142

20

Outer sheath material

PVC

21

Nominal thickness of outer sheath

mm

6.0

22

Nominal diameter of cable

mm

162.0

23

Approx. weight of cable

Kg/km

31790

24

Minimum bending radius

mm

3240

25

Max.D.C. Conductor resistanceat20`C

Ω/km

0.0113

26

Nominal capacitance per phase

uF/km

0.170

27

Max. current rating in air(a point earthed or cross connected)

A

1712( temperature 40° C , 1 circuit ,phase spacing 300, flat  formation)

28

Max. current rating in underground(a point earthed or cross connected)

A

1(temperature 40° C , depth  of laying 1200 mm ,thermal resistivity of soil 1.0 k.m/W , phase spacing 300 , flat  formation)

29

Max. current rating in direct burial(a point earthed or cross connected, temperature 35℃,1 circuit)

A

1128(temperature 25° C , depth  of laying 1500 mm ,thermal resistivity of soil 1.0 k.m/W, phase spacing  300, flat  formation)

30

Max. conductor temperature on continuous

℃

90

31

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