Zhejiang Zetastone Wire & Cable Co., Ltd.
Three Core Cables to IEC 60502

18/30KV (Um=36KV)
Three Core Cables to IEC 60502

The three core cables are designed for distribution of electrical power with nominal voltage Uo/U ranging from 1.8/3KV to 26/35KV and frequency 50Hz. 

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Three Core Cables to IEC 60502 18/30KV (Um=36KV) APPLICATIONS:

The three core cables are designed for distribution of electrical power with nominal voltage Uo/U ranging from 1.8/3KV to 26/35KV 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.

Three Core Cables to IEC 60502 18/30KV (Um=36KV) STANDARD:

IEC 60502 Part 2(3.6/6KV to 18/30KV)

Three Core Cables to IEC 60502 18/30KV (Um=36KV) CONSTRUCTION:

Conductor:Plain annealed copper or aluminium complying with IEC 60228 class 1 or 2.


Conductor Screen: The conductor screen consists of an extruded layer of non metallic, semi-conducting compound applied on top of a semi-conducting tape.


Insulation:Insulation is of polyvinyl chloride (PVC) intended for 1.8/3.6KV and 3.6/6KV cables, cross-linked polyethylene compound (XLPE) or ethylene propylene rubber (EPR/ HEPR).


Insulation Screen: The insulation screen consists of an extruded layer of non metallic, semi-conducting compound extruded over the insulation of each core.


Inner Covering & Fillers:For cables with a collective metallic layer or cables with a metallic layer over each individual cores with additional collective metallic layers, semi-conducting inner covering and fillers shall be applied over the laid up cores.


Metallic Layer: The concentric copper screen wire is applied over the insulation.


Separation Sheath (for armoured cable):The separation sheath comprises a layer of extruded PVC, PE or LSZH applied over the laid up cores under the armour.


Lapped Bedding (for armoured lead sheathed cable):The lapped bedding applied to the lead sheath consists of either impregnated/synthetic compounded paper tapes or a combination of two layers of these paper tapes followed by a few layers of compounded fabulous materials. The thickness is around 1.5mm.


Armour (for armoured cable): The armour is applied over the inner covering helically. It consists of either flat galvanized steel wire armour (strip), round galvanized steel wire armour, and double steel tape armour.


Over Sheath: Overall sheath comprises a layer of extruded thermoplastic compound (PVC, PE or LSZH can be offered as an option.) or elastomeric compound (polychlorprene CSP or chlorosulfonated PE).


Dimensional Data




Unarmoured Cables

Steel Round-Wire Armoured Cables


Nom. Cross- Section Area

Nom. Insulation Thickness

Copper Tape Screen Area

(0.1mm)

Copper Wire Screen Area

Nom. Sheath Thickness

Approx. Overall Diameter

Approx. Weight

Nom. Bedding Thickness

Armour Wire Size

Nom. Sheath Thickness

Approx. Overall Diameter

Approx. Weight


CU

AL

CU

AL


mm²

mm

mm

mm²

mm

mm

kg/km

mm

mm

mm

mm

kg/km


50

8.0

9.9

16

3.2

65

4340

3460

1.8

3.15

3.5

75

8950

8080


70

8.0

10.5

16

3.3

70

5220

3930

1.9

3.15

3.6

80

10150

8860


95

8.0

11.2

16

3.4

74

6240

4440

1.9

3.15

3.7

84

11390

9590


120

8.0

12.0

16

3.5

77

7180

4910

2.0

3.5

3.8

89

13200

10860


150

8.0

12.5

25

3.6

80

8220

5420

2.1

3.5

4.0

92

14520

11720


185

8.0

13.2

25

3.7

84

9540

6040

2.1

4.0

4.1

97

17020

13510


240

8.0

14.3

25

3.9

91

11720

7110

2.2

4.0

4.3

104

19810

15200


300

8.0

15.2

25

4.0

95

13790

8000

2.3

4.5

4.5

108

23310

17470


400

8.0

16.2

35

4.3

103

16820

9430

2.4

4.5

4.7

117

27010

19620


500

8.0

17.7

35

4.5

110

21550

12880

2.5

4.5

4.9

124

31130

22610



Steel Flat Wire Armoured Cables

Double Steel Tape Armoured Cables

Nom. Cross- Section Area

Nom. Bedding Thickness

Armour Wire Size

Nom. Sheath Thickness

Approx. Oveall Diameter

Approx. Weight

Nom. Bedding Thickness

No of Steel tapes x nom tape thickness

Nom. Sheath Thickness

Approx. Overall Diameter

Approx. Weight

CU

AL

CU

AL

mm²

mm

mm

mm

mm

kg/km

mm

mm

mm

mm

kg/km

50

1.8

0.8

3.1

70.2

7490

6775

1.8

2x0.5

3.3

71.2

7300

6585

70

1.9

0.8

3.2

74.0

8590

7540

1.9

2x0.5

3.4

75.0

8390

7335

95

1.9

0.8

3.4

78.5

9990

8460

1.9

2x0.5

3.5

79.3

9740

8210

120

2.0

0.8

3.5

82.2

11250

9270

2.0

2x0.8

3.6

84.5

11845

9875

150

2.1

0.8

3.6

85.6

12510

10070

2.1

2x0.8

3.7

87.9

13120

10700

185

2.1

0.8

3.7

89.8

14155

11100

2.1

2x0.8

3.9

92.3

14850

11800

240

2.2

0.8

3.8

95.4

16740

12575

2.2

2x0.8

4.0

97.9

17480

13320

300

2.3

0.8

4.0

100.9

19310

14120

2.3

2x0.8

4.2

103.4

20080

14900

400

2.4

0.8

4.2

107.8

22840

16170

2.4

2x0.8

4.4

110.3

23660

17000

500

2.5

0.8

4.4

115.5

27200

18610

2.5

2x0.8

4.6

118.0

28080

19510


Electrical Data

Nom. Cross- Section Area

D C

Resistance CU / AL

A C

Resistance CU / AL

Short Circuit Rating of Conductor CU / AL

1 sec

Capacitance

Charging Current

Short Circuit Rating of Copper Wire Screen Per Core 1 sec

Short Circuit Rating of Copper Tape Screen Per Core 1 sec

Reactance

Inductance

mm²

µΩ/m

µΩ/m

kA

pF/m

mA/m

kA

kA

µΩ/m

nH/m

50

387/641

494/822

6.8/4.4

142

0.85

1.96

1.45

134

430

70

268/443

343/568

9.8/6.3

159

0.95

1.96

1.54

127

400

95

193/320

248/410

13.3/8.5

175

1.05

1.96

1.64

121

390

120

153/253

196/325

17.2/11.0

189

1.13

1.96

1.75

117

370

150

124/206

159/265

21.2/13.5

201

1.21

3.06

1.83

113

360

185

99/164

128/211

26.6/17.0

217

1.3

3.06

1.93

109

350

240

75/125

98/161

34.9/22.3

237

1.42

3.06

2.09

104

330

300

60/100

80/130

43.8/28.0

258

1.55

3.06

2.21

101

320

400

47/78

64/102

57.3/36.6

282

1.69

4.29

2.37

96

290

500

37/60

51/81

72.3/46.2

302

1.79

4.29

2.58

78

250


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