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Single Core 21/35KV Medium Voltage Aluminium Tape Armoured Cable

Single Core 21/35KV (Um=42KV) Armoured

Voltage: 21/35kV

Conductor: Copper or Aluminum

Operating Temperature: up to 90°C

Short Circuit Temperature: 250°C

Bending Radius: 12 x OD

Email: manager@hdcable.com.cn

   Single Core 21/35KV Aluminium Tape Armoured Cable Application

The single core cables are designed for distribution of electrical power with nominal voltage Uo/U ranging from 3.8/6.6KV to 19/33KV and frequency 50Hz.

They are suitable for installation mostly in power supply stations, indoors and in cable ducts, outdoors, underground and in water as well as for installation on cable trays for industries, switchboards and power stations.


Single Core 21/35KV Medium Voltage Aluminium Tape Armoured Cable Standard

BS 6622, IEC60502-2, BS 7835 (LSZH Version)

CONSTRUCTION :

Conductor: Plain annealed stranded compacted circular copper or aluminium conductor to IEC60228 class 2

Conductor Screen: Extruded semi-conductive compound

Insulation: XLPE (cross-linked polyethylene) rated at 90°C

Insulation Screen: Extruded semi-conductive compound

Metallic Screen: copper tape or a concentric layer of copper wires

Color for core identification: Red, Yellow ,Blue tape shall be applied between insulation screen and metallic screen ( The above identifying can be changed as user requirement)

Assembly : Three screened cores are laid up together ,if necessary filled with non-hygroscopic material compatible with insulation and covered with a layer of PVC sheath

Inner Sheath: Extruded layer of PVC ST2 or PE , LSZH

Armour : Double of aluminium tape or aluminium wire for single power cable ,Double of galvanized steel tape or galvanized steel wire for three core power cable ,

Outer Sheath: PVC type ST2 to IEC 60502 or PE ,LSZH

DIMENSIONAL DATA :

Single Core 21/35KV Medium Voltage Aluminium tape Armoured Cable

 

Specification

Outer diameter

Nominal thickness of insulation

Aluminium tape

Layer×thickness

Nominal sheath thickness

Approx. outer diameter of cable

 

Approx. Weight of cable

Ampacity of cable

Air

Soil

CU

AL

Cu

Al

Cu

Al

mm2

mm

mm

mm

mm

mm

kg/km

kg/km

A

A

A

A

1×50

8.4

9.3

2×0.5

2.2

39.4

2007.6

1711.1

250

190

225

175

1×70

10.0

9.3

2×0.5

2.3

41.2

2304.6

1883.2

305

240

275

215

1×95

11.5

9.3

2×0.5

2.3

42.9

2621.8

2044.3

375

290

335

260

1×120

13.0

9.3

2×0.5

2.4

44.5

2955.2

2224.8

435

335

380

295

1×150

14.5

9.3

2×0.5

2.4

46.2

3317.9

2400.2

490

380

425

330

1×185

16.2

9.3

2×0.5

2.5

48.0

3760.3

2624.1

565

435

485

375

1×240

18.4

9.3

2×0.5

2.6

50.5

4415.4

2935.8

665

520

565

435

1×300

20.5

9.3

2×0.5

2.6

52.8

5091.1

3233.9

760

590

635

495

1×400

23.5

9.3

2×0.5

2.8

56.2

6171.8

3749.6

890

695

730

570

1×500

26.5

9.3

2×0.5

2.8

59.5

7307.9

4230.2

1030

810

830

655

1×630

30.0

9.3

2×0.5

3.0

63.3

8739.3

4885.0

1200

950

950

755

TECHNICAL PARAMETERS :
 Max. Permissible D.C. resistance of conductor at 20℃ 

Nominal section area (mm2)

Copper conductor(Ω/km)

Aluminum conductor(Ω/km)

1.5

12.1

-

2.5

7.41

12.1

4

4.61

7.41

6

3.08

4.61

10

1.83

3.08

16

1.15

1.91

25

0.727

1.20

35

0.524

0.868

50

0.387

0.641

70

0.268

0.443

95

0.193

0.320

120

0.153

0.253

150

0.124

0.206

185

0.0991

0.164

240

0.0754

0.125

300

0.0601

0.100

400

0.0470

0.0778

500

0.0366

0.0605

630

0.0283

0.0469

Max. Permissible short-circuit current for conductor (reference value)

Nominal section area (mm2)

Maximum permissible short-circuit current for conductor(1s)(KA)

Copper conductor

 Aluminum conductor

1.5

0.12

0.13

2.5

0.32

0.22

4

0.50

0.34

6

0.76

0.51

10

1.51

0.99

16

2.39

1.56

25

3.69

2.42

35

5.15

3.37

50

7.31

4.79

70

10.2

6.68

95

13.8

9.03

120

17.4

11.4

150

21.7

14.2

185

26.7

17.5

240

34.6

22.6

300

43.1

28.2

400

57.4

37.65

500

71.7

47.0

630

88.8

58.0

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