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Universal Cables Limited

Shandong Factory
High-Tech Zone, Zhangqiu, Jinan City, China
Tel:+86 531-83689222
Fax:+86 531-83689444

Kunshan Factory
268, Huangpu River Road, Dianshanhu Town, Hunshan City, China
Tel:+86 512-57429205
Fax:+86 512-57429201

Sales office

Tel:+86 531-88817113
Fax:+86 531-88819113
E-mail:inquiry@uecable.com
Web Site:www.ue-cable.com

Single Core Cables To BS 6622

Single Core Cables To BS 6622

Supplying you with customized single core cables to bs 6622, it is one of the reliable single core cables to bs 6622 manufacturers and suppliers, welcome to wholesale our products at good price from our factory. Single Core Medium Power Cable to BS 6622 Table 1. Insulation Thickness Insulaton...

Product Details

Supplying you with customized single core cables to bs 6622, it is one of the reliable single core cables to bs 6622 manufacturers and suppliers, welcome to wholesale our products at good price from our factory.

Single Core Medium Power Cable to BS 6622

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.

Standards:

BS 6622 BS 7835 (LSZH)

Conductor:

Plain annealed copper or aluminium complying with IEC 60228/BS 6360. Copper conductors shall be stranded (class 2) and aluminium conductors shall be either solid or stranded (class 2).

Conductor Screen:

Extruded layer of semi-conducting cross-linkable compound is applied over the conductor and shall cover the surface completely. The minimum thickness is 0.3mm and the maximum resistivity shall not exceed 500 Ohm-m at 90°C.

Insulation:

Insulation is of cross-linked polyethylene compound XLPE (GP8) conforming to BS 7655-1.3 or EPR (GP7), conforming to BS 7655-1.2.

Table 1. Insulation Thickness


     Nom. Cross Section Area

Insulation Thickness at Nominal Voltage

3.8/6.6KV (Um=7.2KV)

6.35/11KV (Um=12KV)

8.7/15KV(Um=17.5KV)

12.7/22KV(Um=24KV)

19/33KV(Um=36KV)

mm²

mm

mm

mm

mm

mm

70 - 185

2.5

3.4

4.5

5.5

8.0

240

2.6

3.4

4.5

5.5

8.0

300

2.8

3.4

4.5

5.5

8.0

400

3.0

3.4

4.5

5.5

8.0

Above 500

3.2

3.4

4.5

5.5

8.0

Insulaton Screen

Extruded layer of semi-conducting cross-linkable compound is applied over the insulation. The extruded semi-conducting layer shall consist of bonded or cold strippable semi-conducting compound capable of removal for jointing or terminating. As an option, a semi- conducting tape may be applied over the extruded semi-conducting layer as a bedding for the metallic layer. The minimum thickness is 0.3 mm and the maximum resistivity is 500 Ohm-m at 90℃. The screen is tightly fitted to the insulation to exclude all air voids and can be easily hand stripped on site.

Metallic Layer

The metallic layer shall consist of either copper tapes or a concentric layer of copper wires or a combination of tapes and wires. The metallic layer provides an earth fault current path, capable of withstanding fault current to earth of 1000A for one second at maximum temperature 160℃. Copper wires are applied over the conducting water blocking layer with a minimum diameter of 0.5mm. And over the copper wires, copper tape with minimum thickness of 0.1mm can be applied helically with overlap. Total cross section of copper wire screen layer is shown in table 2.

Table 2. Minimum Total Cross Section of Copper Wire Screen & DC Resistance of the screen

Nominal Cross-Section of Cables

Minimum Cross-Section of Copper Wire Screen

DC Resistance of the Copper Wire Screen at 20℃

mm2

Mm2

Ω

up to 120

16

1.06

150-300

25

0.72

400-630

35

0.51

Separation Sheath (for armoured cable)
The separation sheath comprises a layer of extruded PVC, PE or LSZH. The nominal thickness is calculated by 0.02Du + 0.6mm where Du is the fictitious diameter under the sheath in mm. The nominal separation sheath thickness shall not be less than 1.2mm.
Armour (for armoured cable)
The armour consists of round aluminium wire with diameter specified as in Table 3.
Table 3. Armour Wire Diameter

Fictitious Diameter Under the Armour

Armour Wire Diameter

mm

mm

>

<< p="">



25

1.6

25

35

2

35

60

2.5

60

-

3.15

Over Sheath
Overall sheath comprises a layer of extruded either PVC type 9 conforming to BS 7665-4.2 or MDPE type TS2 conforming to BS 7655-10.1. LSZH can be offered as an option. The oversheath is normally black in colour. When a DC voltage test is to be performed on the oversheath, a semi-conducting layer such as graphite coating shall be applied over the surface of the extruded oversheath. The nominal oversheath thickness is calculated by 0.035+D where D is the diameter immediately under the oversheath in mm. For cables with the oversheath not applied over the armour, the nominal oversheath thickness shall not be less than 1.4mm. And for cables with oversheath applied over the armour, the nominal oversheath thickness shall not be less than 1.8mm.
Physical Properties
Operating Temperature: up to 90°C
Temperature Range: -5°C ( PVC sheath ); -20°C ( PE sheath )
Short Circuit Temperature: 250°C (short circuit duration up to 5 seconds)
Bending Radius: 12 x OD
Table 4. Nominal /Operating /Test Voltages

Rated Voltage Uo/U

Operating Voltage (Um)

Testing Voltage (rms)

3.8/6.6KV

7.2KV

15KV

6.35/11KV

12KV

25.5KV

8.7/15KV

17.5KV

35KV

12.7/22KV

24KV

51KV

19/33KV

36KV

76KV

Single Core 3.8/6.6KV (Um=7.2KV) Dimensional Data


 Nom. Cross-Section Area


Unarmoured  Cables

Aluminium Wire Armoured Cables

Nom. Insu

lation Thick

ness

Copper

Wire Screen Area

Nom. Sheath Thick

ness

Approx.

Overall

Diameter

App

rox.

Weight

Copper

Tape

Screen Area

Nom.

Bedding

Thic

kness

Nom.

Armour

Wire Diam

eter

Nom.

Sheath Thick

ness

Approx.

Ove

rall Diam

eter

App

rox.

Weight

Cu

AL

Cu

AL

mm2

mm

mm2

mm

mm

kg/km

mm2

mm

mm

mm

mm

kg/km

25

2.5

16

1.5

20.3

750

580

3.4

1.2

1.6

1.8

26.3

1150

1000

35

2.5

16

1.6

21.3

870

650

3.6

1.2

1.6

1.8

27.3

1250

1050

50

2.5

16

1.6

22.4

1090

770

3.9

1.2

1.6

1.8

28.4

1500

1190

70

2.5

16

1.7

24.2

1310

870

4.3

1.2

1.6

1.8

30.0

1740

1300

95

2.5

16

1.7

25.8

1560

960

4.7

1.2

1.6

1.9

31.8

2030

1430

120

2.5

16

1.8

27.4

1830

1070

5.0

1.2

1.6

1.9

33.2

2310

1550

150

2.5

25

1.8

29.1

2130

1190

5.3

1.2

1.6

2.0

35.1

2660

1720

185

2.5

25

1.9

30.8

2490

1320

5.8

1.2

2.0

2.0

37.4

3120

1950

240

2.6

25

1.9

33.5

3040

1520

6.3

1.2

2.0

2.1

40.3

3740

2200

300

2.8

25

2.0

36.1

3650

1770

7.0

1.2

2.0

2.2

42.9

4400

2520

400

3.0

35

2.2

40.6

4680

2170

7.7

1.2

2.0

2.3

47.2

5490

2960

500

3.2

35

2.3

43.6

5670

2570

8.5

1.3

2.5

2.5

51.6

6760

3660

630

3.2

35

2.4

48.8

6980

2990

9.5

1.4

2.5

2.6

57.0

8200

4160

Electrical Data


              Nom. Cross-

Section Area


Unar

moured

Cables

Alu

minium

Wire

Armou

red

Cables


D C

Resis

tance

CU /

AL

A C

Resis

tance

CU /

AL

Short Circuit Rating

of Con

ductor CU /

AL 1 sec

Capaci-

tance

Char

ging

Cur

rent

Short Circuit Rating

of

Copper

Wire

Screen

1 sec

Short Circuit Rating

of

Copper

Tape

Screen

1 sec

Reac

tance

Induc

tance

Impe

dance

Trefoil

Flat spaced

Trefoil

Flat Spaced

Tre

foil

Flat Spaced

Cu

AL

Cu

AL

mm2

μΩ/m

μΩ/m

kA

pF/m

mA/m

kA

kA

μΩ/m

μΩ/m

nH/m

nH/m

μΩ/ m

μΩ/m

25

727/1200

927/1538

3.6/2.3

263

0.32

2.6

0.4

136

194

400

590

936

1544

952

1554

35

524/868

668/1113

5.0/3.2

291

0.35

2.6

0.5

127

185

390

580

679

1121

695

1131

50

387/641

494/822

6.8/4.4

321

0.39

2.6

0.5

121

179

380

570

511

834

527

844

70

268/443

343/568

9.8/6.3

371

0.45

2.6

0.6

115

173

370

550

364

583

386

597

95

193/320

248/410

13.3/8.5

417

0.50

2.6

0.6

110

168

350

540

272

427

300

446

120

153/253

196/325

17.2/11.0

459

0.55

2.6

0.7

107

165

340

520

225

345

257

367

150

124/206

159/265

21.2/13.5

494

0.59

4.3

0.7

103

161

330

510

193

287

229

313

185

99.1/164

128/211

26.6/17.0

543

0.65

4.3

0.8

100

158

320

500

165

237

206

267

240

75.4/125

98/161

34.9/22.3

583

0.70

4.3

0.9

97

155

310

490

140

191

185

226

300

60.1/100

80/130

43.8/28.0

602

0.72

4.3

1.0

95

153

300

490

126

163

174

203

400

47.0/77.8

64/102

57.3/36.6

627

0.75

5.8

1.1

92

150

290

480

113

141

164

184

500

36.6/60.5

51/81

72.3/46.2

654

0.79

5.8

1.2

90

149

290

470

105

124

158

171

630

28.3/46.9

42/64

91.2/58.3

726

0.87

5.8

1.3

87

145

280

460

97

110

151

160

Single Core 6.35/11KV (Um=12KV) Dimensional Data

Nom. Cross- Section Area


Unarmoured Cables

Aluminium Wire

Armoured Cables

Nom.

Insulation

Thickness

Copper

Wire

Screen Area

Nom.

Sheath

Thickness

Approx.

Overall

Diameter

Approx.

Weight

Copper

Tape

Screen Area

Nom.

Bedding

Thickness

Nom.

Armour

Wire Diameter

Nom.

Sheath

Thickness

Approx.

Overall

Diameter

App

 

rox.

Weight

Cu

AL

Cu

AL

mm2

mm

mm2

mm

mm

kg/km

mm2

mm

mm

mm

mm

kg/km

25

3.4

16

1.5

22.1

960

740

3.8

1.2

1.6

1.8

28.1

1300

780

35

3.4

16

1.6

23.3

1060

790

4.1

1.2

1.6

1.8

29.1

1400

1180

50

3.4

16

1.7

24.4

1160

840

4.4

1.2

1.6

1.8

30.2

1600

1280

70

3.4

16

1.7

26.0

1370

930

4.7

1.2

1.6

1.9

32.0

1840

1400

95

3.4

16

1.8

27.8

1640

1040

5.2

1.2

1.6

1.9

33.6

2130

1530

120

3.4

16

1.8

29.2

1900

1140

5.5

1.2

1.6

2.0

35.2

2430

1670

150

3.4

25

1.9

31.1

2220

1280

5.8

1.2

1.6

2.1

37.9

2870

1930

185

3.4

25

1.9

32.6

2570

1410

6.2

1.2

2.0

2.1

39.4

3240

2080

240

3.4

25

2.0

35.3

3130

1610

6.8

1.2

2.0

2.2

42.1

3490

2330

300

3.4

25

2.1

37.5

3730

1850

7.3

1.2

2.0

2.2

44.1

4490

2560

400

3.4

35

2.2

41.4

4730

2200

8.0

1.2

2.0

2.4

48.2

5589

3040

500

3.4

35

2.3

44.0

5700

2600

8.6

1.3

2.5

2.5

52.0

6780

3680

630

3.4

35

2.4

49.2

7010

3020

9.5

1.4

2.5

2.6

57.4

8230

4200

Electrical Data


 Nom. Cross- Section Area


Unarmoured Cables

Aluminium Wire Armoured Cables


D C Resistance CU / AL

A C Resistance CU / AL

Short Circuit Rating of Conductor CU / AL 1 sec

Capaci- tance

Charging Current

Short Circuit Rating of Copper Wire Screen 1 sec

Short Circuit Rating of Copper Tape Screen 1 sec

Reac

 

tance

Induc

 

tance

Impe

 

dance

Trefoil

Flat Spaced

Trefoil

Flat Spaced

Trefoil

Flat Spaced

Cu

AL

Cu

AL

mm2

μΩ/m

μΩ/m

kA

pF/m

mA/m

kA

kA

μΩ/m

μΩ/m

nH/m

nH/m

μΩ/m

μΩ/m

25

727/1200

927/1538

3.6/2.3

208

0.42

2.6

0.5

146

206

440

640

936

1544

952

1554

35

524/868

668/1113

5.0/3.2

229

0.46

2.6

0.6

138

201

440

640

679

1121

695

1131

50

387/641

494/822

6.8/4.4

252

0.5

2.6

0.6

132

195

420

620

511

834

527

844

70

268/443

343/568

9.8/6.3

288

0.58

2.6

0.7

122

188

390

600

364

583

386

597

95

193/320

248/410

13.3/8.5

323

0.65

2.6

0.7

122

182

390

580

272

427

300

446

120

153/253

196//325

17.2/11.0

353

0.71

2.6

0.8

116

172

370

550

225

345

257

367

150

124/206

159/265

21.2/13.5

380

0.76

4.3

0.8

110

166

350

530

193

287

229

313

185

99.1/164

128/211

26.6/17.0

416

0.83

4.3

0.9

107

166

340

530

165

237

206

267

240

75.4/125

98/161

34.9/22.3

460

0.92

4.3

0.9

104

163

330

520

140

191

185

226

300

60.1/100

80/130

43.8/28.0

506

1.01

4.3

1

100

157

320

500

126

163

174

203

400

47/77.8

64/102

57.3/36.6

561

1.12

5.8

1.1

94

154

300

490

113

141

164

184

500

36.6/60.5

51/81

72.3/46.2

619

1.24

5.8

1.2

91

151

290

480

105

124

158

171

630

28.3/46.9

42/64

91.2/58.3

698

1.37

5.8

1.3

91

148

290

470

97

110

151

160

Single Core 8.7/15KV (Um=17.5kV) Dimensional Data


 Nom. Cross- Section Area


Unarmoured Cables

Aluminium Wire Armoured Cables

Nom.

Insulation

Thickness

Copper Wire Screen Area

Nom.

Sheath

Thickness

Approx.

Overall

Diameter

Approx.

Weight

Copper Tape Screen Area

Nom.

 

Bedding Thickness

Nom.

Armour

Wire Diameter

Nom.

Sheath Thickness

Approx.

Overall Diameter

App

rox.

Weight

CU

AL

CU

AL

mm2

mm

mm2

mm

mm

kg/km

mm2

mm

mm

mm

mm

kg/km

25

4.5

16

1.6

23.7

940

820

4.4

1.2

1.6

1.8

30.3

1430

1210

35

4.5

16

1.7

24.9

1140

870

4.7

1.2

1.6

1.9

31.5

1630

1310

50

4.5

16

1.7

26.6

1240

920

4.9

1.2

1.6

1.9

32.6

1730

1410

70

4.5

16

1.8

28.4

1470

1030

5.3

1.2

1.6

1.9

34.2

1970

1520

95

4.5

16

1.9

30.2

1750

1160

5.7

1.2

2.0

2.0

36.8

2370

1770

120

4.5

16

1.9

31.6

2100

1250

6.1

1.2

2.0

2.1

38.4

2670

1910

150

4.5

25

2.0

33.5

2340

1400

6.4

1.2

2.0

2.1

40.1

3020

2080

185

4.5

25

2.0

35.0

2690

1520

6.8

1.2

2.0

2.2

41.8

3420

2240

240

4.5

25

2.1

36.8

3270

1740

7.4

1.2

2.0

2.3

44.5

4050

2500

300

4.5

25

2.2

39.9

3870

1990

7.9

1.2

2.0

2.3

46.5

4680

2780

400

4.5

35

2.3

43.8

4890

2370

8.5

1.3

2.5

2.5

51.8

5970

3430

500

4.5

35

2.4

46.4

5860

2760

9.2

1.3

2.5

2.6

54.4

7010

3910

630

4.5

35

2.5

51.6

7190

3190

10.0

1.4

2.5

2.7

59.8

8480

4420

Electrical Data

Nom. Cross- Section Area

Unarmoured Cables

Aluminium Wire Armoured Cables

D C Resistance CU / AL

A C Resistance CU / AL

Short Circuit Rating of Conductor CU / AL 1 sec

Capac-itance

Charging Current

Short Circuit Rating of Copper Wire Screen 1 sec

Short Circuit Rating of Copper Tape Screen 1 sec

Reactance

Inductance

Impedance

Trefoil

Flat Spaced

Trefoil

Flat Spaced

Trefoil

Flat Spaced

CU

AL

CU

AL

mm2

μΩ/m

μΩ/m

kA

pF/m

mA/m

kA

kA

μΩ/m

μΩ/m

nH/m

nH/m

μΩ/m

μΩ/m

25

727/1200

927/1538

3.6/2.3

171

0.47

2.6

0.6

154

217

480

680

936

1544

952

1554

35

524/868

668/1113

5.0/3.2

187

0.51

2.6

0.6

145

208

460

660

679

1121

695

1131

50

387/641

494/822

6.8/4.4

204

0.56

2.6

0.7

138

201

440

640

511

834

527

844

70

268/443

343/568

9.8/6.3

232

0.63

2.6

0.7

132

188

420

600

364

583

386

597

95

193/320

248/410

13.3/8.5

258

0.70

2.6

0.8

126

182

400

580

272

427

300

446

120

153/253

196/325

17.2/11.0

281

0.77

2.6

0.8

119

179

380

570

225

345

257

367

150

124/206

159/265

21.2/13.5

301

0.82

4.3

0.9

113

176

360

560

193

287

229

313

185

99.1/164

128/211

26.6/17.0

329

0.90

4.3

0.9

110

170

350

540

165

237

206

267

240

75.4/125

98/161

34.9/22.3

363

0.99

4.3

1.0

107

166

340

530

140

191

185

226

300

60.1/100

80/130

43.8/28.0

398

1.09

4.3

1.1

104

160

330

510

126

163

174

203

400

47/77.8

64/102

57.3/36.6

439

1.20

5.8

1.2

97

157

310

500

113

141

164

184

500

36.6/60.5

51/81

72.3/46.2

483

1.32

5.8

1.3

94

154

300

490

105

124

158

171

630

28.3/46.9

42/64

91.2/58.3

534

1.46

5.8

1.4

91

151

290

480

97

110

151

160

Single Core 12.7/22KV (Um=24kV) Dimensional Data


Nom. Cross- Section Area

Unarmoured Cables

Aluminium Wire Armoured Cables

Nom. Insulation Thickness

Copper Wire Screen Area

Nom.Sheath Thickness

Approx. Overall Diameter

Approx. Weight

Copper Tape Screen Area

Nom. Bedding Thickness

Nom. Armour Wire Diameter

Nom. Sheath Thickness

Approx. Overall Diameter

Approx. Weight

CU

AL

CU

AL

mm2

mm

mm2

mm

mm

kg/km

mm2

mm

mm

mm

mm

kg/km

35

5.5

16

1.7

27.4

1100

800

5.2

1.2

1.6

1.9

31.4

1400

1200

50

5.5

16

1.8

28.8

1330

1010

5.4

1.2

1.6

2

34.8

1850

1540

70

5.5

16

1.9

30.6

1570

1130

5.9

1.2

2

2

37.2

2190

1750

95

5.5

16

1.9

32.2

1840

1240

6.2

1.2

2

2.1

39

2510

1900

120

5.5

16

2

33.8

2120

1360

6.6

1.2

2

2.1

40.4

2810

2040

150

5.5

25

2

35.5

2440

1500

6.9

1.2

2

2.2

42.3

3180

2240

185

5.5

25

2.1

37.2

2810

1640

7.4

1.2

2

2.2

43.8

3560

2380

240

5.5

25

2.2

39.9

3390

1860

7.8

1.2

2

2.3

46.5

4200

2640

300

5.5

25

2.2

41.9

3990

2110

8.4

1.3

2.5

2.4

49.9

5030

3130

400

5.5

35

2.3

45.8

5100

2490

9

1.3

2.5

2.5

53.8

6140

3600

500

5.5

35

2.4

48.4

6000

2900

9.7

1.4

2.5

2.6

56.6

7210

4100

630

5.5

35

2.5

53.6

7340

3340

10.4

1.4

2.5

2.8

62

8700

4650

Electrical Data


Nom. Cross- Section Area

Unarmoured Cables

Aluminium Wire Armoured Cables

D C Resistance CU / AL

A C Resistance CU / AL

Short Circuit Rating of Conductor CU / AL 1 sec

Capaci- tance

Charging Current

Short Circuit Rating of Copper Wire Screen 1 sec

Short Circuit Rating of Copper Tape Screen 1 sec

Reactance

Inductance

Impedance

Trefoil

Flat Spaced

Trefoil

Flat Spaced

Trefoil

Flat Spaced

CU

AL

CU

AL

mm2

μΩ/m

μΩ/m

kA

pF/m

mA/m

kA

kA

μΩ/m

μΩ/m

nH/m

nH/m

μΩ/m

μΩ/m

35

524/868

668/1113

5.0/3.2

162

0.7

2.6

0.7

147

207

470

620

679

1121

695

1131

50

387/641

494/822

6.8/4.4

177

0.8

2.6

0.8

141

201

450

640

511

834

527

844

70

268/443

343/568

9.8/6.3

200

0.8

2.6

0.8

135

195

430

620

364

583

386

597

95

193/320

248/410

13.3/8.5

222

0.9

2.6

0.9

129

188

410

600

272

427

300

446

120

153/253

196/325

17.2/11.0

241

0.9

2.6

0.9

122

182

390

580

225

345

257

367

150

124/206

159/265

21.2/13.5

257

1.0

4.3

1.0

116

176

370

560

193

287

229

313

185

99.1/164

128/211

26.6/17.0

280

1.0

4.3

1.0

116

173

370

550

165

237

206

267

240

75.4/125

98/161

34.9/22.3

307

1.1

4.3

1.1

110

170

350

540

140

191

185

226

300

60.1/100

80/130

43.8/28.0

336

1.2

4.3

1.2

107

166

340

530

126

163

174

203

400

470/77.8

64/102

57.3/36.6

370

1.3

5.8

1.3

100

160

320

510

113

141

164

184

500

36.6/60.5

51/81

72.3/46.2

406

1.4

5.8

1.4

97

154

310

490

105

124

158

171

630

28.3/46.9

42/64

91.2/58.3

449

1.5

5.8

1.5

94

151

300

480

97

110

151

160

Single Core 19/33KV (Um=36kV) Dimensional Data


Nom. Cross- Section Area

Unarmoured Cables

Aluminium Wire Armoured Cables

Nom.Insulation Thickness

Copper Wire Screen Area

Nom.Sheath Thickness

Approx. Overall Diameter

Approx. Weight

Copper Tape Screen Area

Nom.Bedding Thickness

Nom. Armour Wire Diameter

Nom. Sheath Thickness

Approx. Overall Diameter

Approx. Weight

CU

AL

CU

AL

mm2

mm

mm2

mm

mm

kg/km

mm2

mm

mm

mm

mm

kg/km

50

8

16

2.0

34.2

1580

1270

6.7

1.2

2.0

2.2

41.0

2300

1980

70

8

16

2.0

35.8

1820

1380

7.1

1.2

2.0

2.2

42.6

2560

2120

95

8

16

2.1

37.6

2120

1510

7.5

1.2

2.0

2.3

44.4

2890

2290

120

8

16

2.1

39.0

2400

1630

7.9

1.2

2.0

2.3

45.8

3200

2430

150

8

25

2.2

40.9

2740

1810

8.2

1.3

2.5

2.4

48.9

3760

2830

185

8

25

2.2

42.4

3110

1950

8.6

1.3

2.5

2.5

50.6

4180

3010

240

8

25

2.3

45.1

3720

2180

9.2

1.3

2.5

2.5

53.1

4830

3270

300

8

25

2.4

47.3

4350

2460

9.7

1.4

2.5

2.6

55.5

5540

3630

400

8

35

2.5

51.2

5410

2880

10.3

1.4

2.5

2.7

59.4

6680

4130

500

8

35

2.6

53.8

6420

3320

11.0

1.5

2.5

2.8

62.2

7790

4690

630

8

35

2.7

59.0

7800

3780

11.8

1.5

2.5

2.9

67.4

9290

5220

Electrical Data


Nom. Cross- Section Area

Unarmoured Cables

Aluminium Wire Armoured Cables

D C Resistance CU / AL

A C Resistance CU / AL

Short Circuit Rating of Conductor CU / AL 1 sec

Capaci- tance

Charging Current

Short Circuit Rating of Copper Wire Screen 1 sec

Short Circuit Rating of Copper Tape Screen 1 sec

Reactance

Inductance

Impedance

Trefoil

Flat Spaced

Trefoil

Flat Spaced

Trefoil

Flat Spaced

CU

AL

CU

AL

mm2

μΩ/m

μΩ/m

kA

pF/m

mA/m

kA

kA

μΩ/m

μΩ/m

nH/m

nH/m

μΩ/m

μΩ/m

50

387/641

494/822

6.8/4.4

138

0.83

2.6

1.0

151

214

480

680

511

834

527

844

70

268/443

343/568

9.8/6.3

154

0.92

2.6

1.0

144

201

460

640

364

583

386

597

95

193/320

248/410

13.3/8.5

169

1.01

2.6

1.1

138

195

440

620

272

427

300

446

120

153/253

196/325

17.2/11.0

183

1.10

2.6

1.1

132

188

420

600

225

345

257

367

150

124/206

159/265

21.2/13.5

194

1.16

4.3

1.2

126

182

400

580

193

287

229

313

185

99.1/164

128/211

26.6/17.0

210

1.26

4.3

1.2

122

182

390

580

165

237

206

267

240

75.4/125

98/161

34.9/22.3

229

1.37

4.3

1.3

119

176

380

560

140

191

185

226

300

60.1/100

80/130

43.8/28.0

249

1.49

4.3

1.4

113

173

360

550

126

163

174

203

400

47/77.8

64/102

57.3/36.6

273

1.64

5.8

1.5

107

163

340

520

113

141

164

184

500

36.6/60.5

51/81

72.3/46.2

298

1.79

5.8

1.6

104

163

330

520

105

124

158

171

630

28.3/46.9

42/64

91.2/58.3

327

1.96

5.8

1.7

100

160

320

510

97

110

151

160

Current Rating for 3.8/6.6KV (Um=7.2KV), 6.35/11KV (Um=12KV) & 8.7/15KV (Um=17.5KV)

Nom. Cross- Section Area

Ground

Duct

Air

Trefoil Unarm'd/Arm'd

Flat Spaced Unarm'd/Arm'd

Trefoil Unarm'd/Arm'd

Flat Touching Unarm'd/Arm'd

Trefoil Unarm'd/Arm'd

Flat Spaced Unarm'd/Arm'd

CU

AL

CU

AL

CU

AL

CU

AL

CU

AL

CU

AL

mm2

A

A

A

A

A

A

25

160/160

120/120

170/170

125/125

165/165

125/125

165/165

125/125

170/170

130/130

230/235

180/180

35

180/180

150/150

190/190

155/15

185/185

155/155

185/185

155/155

200/200

160/160

260/265

210/210

50

220/220

170/170

230/230

175/175

225/220

175/170

220/220

170/170

235/250

180/195

295/300

230/230

70

270/270

210.21

280/280

215/215

270/260

215/210

270/270

210/210

285/310

225/240

370/370

290/290

95

320/320

250/250

335/335

260/260

320/305

255/245

325/325

250/250

360/375

280/295

455/460

350/355

120

360/360

280/280

380/380

295/295

360/340

285/275

370/370

285/285

415/430

320/355

520/530

410/410

150

410/410

320/315

430/430

330/330

400/375

315/300

415/410

320/320

470/490

365/380

600/600

465/465

185

460/455

360/355

485/485

375/375

440/410

350/335

465/460

360/360

540/550

425/435

690/690

530/530

240

530/520

415/405

560/560

440/440

505/460

405/380

540/540

420/420

640/650

500/510

820/820

640/630

300

600/580

475/455

640/640

495/495

560/500

455/420

610/610

475/470

740/740

580/580

940/940

730/730

400

680/650

540/510

730/730

570/570

610/530

510/455

690/690

540/540

840/840

670/670

1100/1100

860/860

500

750/710

610/570

830/830

650/650

680/570

570/500

790/780

620/620

940/930

790/770

1280/1280

1010/1010

630

830/760

680/640

940/940

750/750

750/620

640/550

890/890

710/700

1110/1040

910/880

1500/1480

1190/1180

Current Rating for 12.7/22KV (Um=24KV)


Nom. Cross- Section Area

Ground

Duct

Air

Trefoil Unarm'd/Arm'd

Flat Spaced Unarm'd/Arm'd

Trefoil Unarm'd/Arm'd

Flat Touching Unarm'd/Arm'd

Trefoil Unarm'd/Arm'd

Flat Spaced Unarm'd/Arm'd

CU

AL

CU

AL

CU

AL

CU

AL

CU

AL

CU

AL

mm2

A

A

A

A

A

A

35

180/180

130/130

200/200

135/135

180/170

130/125

180/175

130/125

190/175

145/135

225/230

175/175

50

220/220

170/170

230/230

175/175

225/210

175/170

225/220

175/170

245/260

190/200

295/300

230/230

70

270/270

210.21

280/280

215/215

270/260

210/205

270/270

210/210

300/320

235/245

365/370

285/285

95

320/320

250/245

335/335

260/260

320/300

250/245

320/325

250/250

360/380

280/295

450/450

345/350

120

360/360

280/280

380/380

295/295

360/340

280/275

365/365

285/285

425/440

330/340

520/520

400/400

150

410/410

320/310

430/430

330/330

405/370

320/300

410/410

320/315

485/490

375/385

590/590

455/455

185

460/450

360/350

485/485

375/375

445/400

350/335

460/460

360/360

550/560

430/440

670/670

520/520

240

530/510

415/405

560/560

440/440

520/450

415/380

530/530

415/415

650/650

510/510

800/800

620/620

300

600/570

475/450

640/640

495/495

570/490

460/415

600/600

470/470

740/730

580/580

920/910

710/710

400

690/640

550/510

730/730

570/570

630/530

520/460

690/680

540/530

850/830

680/670

1070/1060

840/830

500

760/700

610/570

830/830

650/650

700/570

570/510

780/770

610/610

980/940

790/770

1250/1230

980/970

630

850/760

690/640

950/940

750/750

780/610

650/560

890/880

700/700

1130/1050

920/880

1450/1430

1060/1140

Current Rating for 19/33KV (Um=36KV)

Nom. Cross- Section Area

Ground

Duct

Air

Trefoil Unarm'd/Arm'd

Flat Spaced Unarm'd/Arm'd

Trefoil Unarm'd/Arm'd

Flat Touching Unarm'd/Arm'd

Trefoil Unarm'd/Arm'd

Flat Spaced Unarm'd/Arm'd

CU

AL

CU

AL

CU

AL

CU

AL

CU

AL

CU

AL

mm2

A

A

A

A

A

A

50

220/220

170/170

230/230

175/175

225/220

175/170

225/220

175/170

245/260

190/200

295/300

230/230

70

270/270

210.21

280/280

215/215

270/260

210/205

270/270

210/210

300/320

235/245

365/370

285/285

95

320/320

250/245

335/335

260/260

320/300

250/245

320/325

250/250

360/380

280/295

450/450

345/350

120

360/360

280/280

380/380

295/295

360/340

280/275

365/365

285/285

425/440

330/340

520/520

400/400

150

410/410

320/310

430/430

330/330

405/370

320/300

410/410

320/315

485/490

375/385

590/590

455/455

185

460/450

360/350

485/485

375/375

445/400

350/335

460/460

360/360

550/560

430/440

670/670

520/520

240

530/510

415/405

560/560

440/440

520/450

415/380

530/530

415/415

650/650

510/510

800/800

620/620

300

600/570

475/450

640/640

495/495

570/490

460/415

600/600

470/470

740/730

580/580

920/910

710/710

400

690/640

550/510

730/730

570/570

630/530

520/460

690/680

540/530

850/830

680/670

1070/1060

840/830

500

760/700

610/570

830/830

650/650

700/570

570/510

780/770

610/610

980/940

790/770

1250/1230

980/970

630

850/760

690/640

940/940

750/750

780/610

650/560

890/880

700/700

1130/1050

920/880

1450/1430

1060/1140

Current Rating Conditions:
Ground Temperature:20°C
Ambient Temperature (air): 30°C
Depth of Soil: 0.8m
Thermal Resistance of Soil: 1.5K•m/W

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