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ENERGEX® CN 25 kV 100% Cu 1/3 Neutral (UD)

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ENERGEX® CN 25 kV 100% Cu 1/3 Neutral (UD) CN Primary Distribution Cables 5 to 46 kV
REFERENCES
ENERGEX® CN
 Standards
Description
Characteristics
Related Information
Standards
National  CSA C68.5
Description

Nexans ENERGEX CN Distribution Cables are single conductor concentric neutral power cables available in voltage classes from 5 kV to 46 kV.  These cables are manufactured using the latest in clean compound handling technology.  ENERGEX CN has a semiconducting crosslinked polyolefin (XLPO) conductor shield, a tree retardant crosslinked polyethylene (TRXLPE) insulation and a strippable semiconducting crosslinked polyolefin (XLPO) insulation shield.  Three phase systems typically use CN cables with 1/3 neutrals. 

These cables are LEAD FREE and RoHS compliant. 

 


Application

ENERGEX CN Distribution Cables are suitable for use above ground in open air, in cable tray, in conduit in air, aerially when suspended on a messenger wire, and either directly buried or in duct. ENERGEX CN cables are suitable for continuous operation at 90ºC wet or dry, and are sunlight resistant.


Related documents
  CN Reduced Neutral Design Options  (24.2kb)
  Concentric Neutral Insulation System  (60.8kb)
  Concentric Neutral Jacket Thickness & Test Voltage  (20.7kb)
  Concentric Neutral Installation  (23.1kb)
  Concentric Neutral Field Testing  (85.6kb)



 TOP
Characteristics
Construction characteristics
Conductor material Copper  
Electrical characteristics
Operating voltage 25kV  

 TOP
CN 25 kV 100% Cu 1/3 Neutral (UD) Physical Data

Conductor
Size

Stranding
(No of
Wires)

Insulation
Diameter

Concentric
Neutral*

Minimum
Jacket
Thickness
(mm)

Approx
Jacket
Diameter
(mm)

Approx
Cable
Weight
(kg/km)

AWG/
kcmil

mm²

Nom
(mm)

No of
Wires

AWG

 

 

 

 

 

 

 

 

 

1

42.4

solid

21.6

7

14

1.14

29.4

1146

1

42.4

18

21.8

7

14

1.14

29.7

1168

 

 

 

 

 

 

 

 

 

1/0

53.5

solid

22.5

9

14

1.14

30.3

1310

1/0

53.5

18

22.7

9

14

1.14

30.6

1339

 

 

 

 

 

 

 

 

 

2/0

67.4

18

23.7

11

14

1.14

31.6

1533

3/0

85.0

18

24.9

14

14

1.14

32.7

1793

4/0

107

18

26.3

18

14

1.14

34.1

2113

 

 

 

 

 

 

 

 

 

250

127

35

27.6

21

14

1.14

36.0

2575

300

152

35

28.9

25

14

1.14

37.2

2947

350

177

35

30.1

18

12

1.14

39.3

3371

400

203

35

31.2

21

12

1.14

40.4

3758

 

 

 

 

 

 

 

 

 

500

253

35

33.1

26

12

1.78

43.7

4591

600

304

58

35.4

20

10

1.78

47.0

5462

750

380

58

37.8

25

10

1.78

49.4

6570

1000

507

58

41.6

26

9

1.78

54.7

8542

* The number of wires is increased where necessary to comply with the CSA 7.0 mm maximum 
   CN wire-to-wire spacing limit.


CN 25 kV 100% Cu 1/3 Neutral (UD) Electrical Data

Conductor
Size

Stranding
(No of
Wires)

DC
Resistance
20°C
(Ω/km)

AC***
Resistance
90°C
(Ω/km,
60 Hz)

Inductive
Reactance***
(Ω/km,
60 Hz)

Capacitance
(µF/km)

Capacitive
Reactance
(MΩ∙km,
60 Hz)

AWG/
kcmil

mm²

1

42.4

solid

0.4065

0.5186

0.3406

0.1323

20100

1

42.4

18

0.4147

0.5289

0.3317

0.1350

19700

 

 

 

 

 

 

 

 

1/0

53.5

solid

0.3222

0.4111

0.3406

0.1421

18700

1/0

53.5

18

0.3286

0.4193

0.3230

0.1452

18300

 

 

 

 

 

 

 

 

2/0

67.4

18

0.2608

0.3328

0.3145

0.1557

17000

3/0

85.0

18

0.2068

0.2642

0.3055

0.1684

15800

4/0

107

18

0.1640

0.2097

0.2968

0.1811

14700

 

 

 

 

 

 

 

 

250

127

35

0.1388

0.1776

0.2900

0.1954

13600

300

152

35

0.1157

0.1483

0.2831

0.2081

12700

350

177

35

0.0992

0.1274

0.2772

0.2183

12200

400

203

35

0.0868

0.1117

0.2721

0.2300

11500

 

 

 

 

 

 

 

 

500

253

35

0.0694

0.0898

0.2638

0.2480

10700

600

304

58

0.0578

0.0753

0.2563

0.2687

9900

750

380

58

0.0463

0.0610

0.2480

0.2916

9100

1000

507

58

0.0347

0.0468

0.2362

0.3290

8100

*** AC resistance, including skin effect, and inductive reactance are calculated for cables in separate ducts, or
spaced in air or direct burial for 1/3 CN. Assumed spacing is 190 mm flat axial separation.
Balanced three-phase current loading is assumed for 1/3 CN cables.


 TOP
   CN Reduced Neutral Design Options (24 kB)
   Concentric Neutral Insulation System (60 kB)
   Concentric Neutral Jacket Thickness & Test Voltage (20 kB)
   Concentric Neutral Installation (23 kB)
   Concentric Neutral Field Testing (85 kB)



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