Section kv Power Cables

Know Your Options: 138 kV Power Cables 43 Section 4 Conductor material and size • Copper conductor common for larger loads • W  hen both copper a...
Author: Nigel Craig
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Know Your Options: 138 kV Power Cables 43

Section 4

Conductor material and size

• Copper conductor common for larger loads • W  hen both copper and aluminum conductors can meet your requirements, the more economical solution will be a function of the metal and the cable component costs

Insulation thickness • For cables with a radial moisture barrier, “Southwire Standard Wall” reduced insulation thicknesses within the stress limits in AEIC specification CS9 are recommended • Cables referred to by “Traditional Wall” insulation (850 mils) follow the traditional insulation wall practice referenced in ICEA standard S-108-720 appendix F as still specified by a number of customers and utilities • For applications requiring smaller cable diameters, specific designs are available upon request within the stress limits in AEIC specification CS9

Sheath material • Copper and aluminum corrugated sheaths offer the best mechanical and moisture protection for your HV cable, and copper will provide better short circuit performance and improved connectability • Composite laminate sheaths in both copper and aluminum that offer excellent protection against moisture ingress

Jacket • Standard outer jacket: extruded LLDPE with a co-extruded outer semi-conductive polyethylene layer for jacket integrity testing • Halogen Free Fire Retardant (HFFR) compounds are available upon request for installations in cable trays and ventilated troughs

44

138 kV Power Cables

Conductor material is a matter of both customer preference and required current carrying capacity

138 kV Power Cables

138 kV XLPE Copper Conductor Traditional Wall 850 mil XLPE Copper Corrugated Sheath

Cable Construction • Reverse Concentric Stranded Copper, Compressed Conductor or Milliken • Super Smooth Conductor Shield • Super Clean XLPE Insulation • Traditional Wall - 850 mil XLPE

• True Triple Extrusion and Dry Cured • Firmly Bonded Insulation Shield • Welded Copper Corrugated Sheath • Polyethylene Jacket with Extruded Semi-Conductive Outer Layer

Cable Data Voltage Characteristics (kV) Max Voltage Rating

145

BIL Rating

650

Temperatures ( C) o

Nominal Conductor

90

Max. Emergency Conductor

105

Short Circuit Conductor

250

Minimum Installation

-10

Design Characteristics Design Standards Typical Test Voltages XLPE Loss Factor Relative Permittivity

AEIC, IEC 240 kV / 15 min. 0.0005 2.3

45

Section 4

Conductor Size in kcmil1

750

1000

1250

1500

1750

2000

2500

3000

3500

4000

Nominal

Conductor Diameter

in

0.97

1.12

1.25

1.37

1.48

1.61

1.76

1.92

2.08

2.21

mm

24.7

28.5

31.8

34.8

37.6

40.9

44.7

48.8

52.8

56.1

in

2.79

2.94

3.07

3.19

3.30

3.40

3.66

3.82

3.98

4.11

mm

70.8

74.6

78.0

81.0

83.8

86.4

93.0

97.1

101.0

104.4

in

3.34

3.50

3.65

3.78

3.90

4.02

4.31

4.49

4.66

4.80

mm

84.8

89.0

92.7

96.0

99.1

102.0

109.4

113.9

118.3

122.0

in

3.62

3.78

3.93

4.06

4.18

4.30

4.59

4.77

4.94

5.08

mm

91.9

96.1

99.8

103.1

106.2

109.1

116.6

121.1

125.4

129.1

Diameter over Insulation Diameter over Sheath Overall Jacket Diameter Total Weight

lbs/ft

6.8

7.9

8.9

9.9

10.9

11.9

14.1

16.0

18.0

19.8

Min. Bending Radius (install/ perm.)

in

72/54

76/57

79/59

81/61

84/63

86/64

92/69

95/71

99/74

102/76

Maximum Pulling Tension

lbs

6,000

8,000

10,000

12,000

14,000

16,000

20,000

24,000

28,000

32,000

138 kV Power Cables

Dimensional

Typical Shipping Reel Size in

138x95

150x95

150x95

150x95

150x95

158x95

158x95

158x95

158x95

158x95

Shipping Reel Capacity2

ft

3,000

3,000

3,000

2,725

2,750

2,775

2,550

2,250

1,925

1,825

Conductor Shield

kV/mm

6.1

5.9

5.7

5.5

5.4

5.3

5.1

5.0

4.9

4.9

Insulation Shield

kV/mm

2.4

2.5

2.5

2.6

2.6

2.7

2.7

2.8

2.8

2.9

Electrical Electrical Stress @ Uo

Short Circuit for 0.5s3 Conductor

kA

76.9

102.5

128.1

153.8

179.4

205.0

256.3

307.5

358.8

410.0

Sheath

kA

41.8

43.9

45.7

47.4

48.9

50.3

54

56.2

58.3

60.2

DC @ 20o C

Ω/kft

0.014

0.011

0.008

0.007

0.006

0.005

0.004

0.003

0.003

0.003

DC @ 90 C

Ω/kft

0.018

0.014

0.011

0.009

0.008

0.007

0.005

0.005

0.004

0.003

Capacitance

pF/ft

41.4

45.0

48.3

51.2

53.8

56.3

62.4

66.2

69.8

73.0

Charging Current

Amps/ kft

1.24

1.35

1.45

1.54

1.62

1.69

1.87

1.99

2.10

2.19

Ampacity @ 90o C

per circuit

Typical Single Ductbank4

Amps

740

850

950

1030

1100

1170

1379

1515

1613

1698

Power Rating

MVA

177

204

228

247

263

280

330

363

386

406

Typical Double Ductbank4

Amps

630

720

800

870

930

970

1153

1243

1316

1378

Power Rating

MVA

151

173

192

208

223

232

276

298

315

330

Conductor Resistance o

2500-4000 kcmil conductors are 5 segment Milliken conductors. Increased shipping reel capacity can be accommodated on request. 3 Declared values for 30 mils copper sheath. Thicker sheath can accommodate more current. 4 4ft top of duct, 1oC-m/W native, 0.8oC-m/W ductbank backfill, 25oC Ambient, 75% lf, 9” spacing, single-point or cross bonded 1 2

46

Traditional Wall 850 mil XLPE Copper Corrugated Sheath

Flange x Width

138 kV Power Cables

138 kV XLPE Copper Conductor SW Standard Wall XLPE Copper Corrugated Sheath

Cable Construction • Reverse Concentric Stranded Copper, Compressed Conductor or Milliken • Super Smooth Conductor Shield • Super Clean XLPE Insulation • 630 mil XLPE minimum

• True Triple Extrusion and Dry Cured • Firmly Bonded Insulation Shield • Welded Copper Corrugated Sheath • Polyethylene Jacket with Extruded Semi-Conductive Outer Layer

Cable Data Voltage Characteristics (kV) Max Voltage Rating

145

BIL Rating

650

Temperatures ( C) o

Nominal Conductor

90

Max. Emergency Conductor

105

Short Circuit Conductor

250

Minimum Installation

-10

Design Characteristics Design Standards Typical Test Voltages XLPE Loss Factor Relative Permittivity

AEIC, IEC 240 kV / 15 min. 0.0005 2.3

47

Section 4

Conductor Size in kcmil1

750

1000

1250

1500

1750

2000

2500

3000

3500

4000

Nominal

Conductor Diameter

in

0.97

1.12

1.25

1.37

1.48

1.61

1.76

1.92

2.08

2.21

mm

24.7

28.5

31.8

34.8

37.6

40.9

44.7

48.8

52.8

56.1

mils

770

730

700

680

660

650

630

630

630

640

mm

19.6

18.5

17.8

17.3

16.8

16.5

16.0

16.0

16.0

16.3

in

2.63

2.70

2.77

2.85

2.92

3.00

3.22

3.38

3.54

3.69

mm

66.8

68.5

70.4

72.4

74.2

76.3

81.8

85.9

89.8

93.7

in

3.16

3.23

3.30

3.39

3.46

3.56

3.81

3.98

4.15

4.32

mm

80.2

82.1

83.9

86.1

88.0

90.3

96.6

101.1

105.4

109.7

Overall Jacket Diameter

in

3.44

3.51

3.58

3.67

3.74

3.84

4.09

4.26

4.43

4.60

mm

87.4

89.2

91.0

93.2

95.1

97.5

103.8

108.2

112.5

116.8

Total Weight

lbs/ft

6.4

7.3

8.1

9.0

9.9

10.7

12.8

14.6

16.6

18.4

Min. Bending Radius (install/ perm.)

in

69/52

70/53

72/54

73/55

75/56

77/58

82/61

85/64

89/66

92/69

Maximum Pulling Tension

lbs

6,000

8,000

10,000

12,000

14,000

16,000

20,000

24,000

28,000

32,000

Insulation Thickness Diameter over Insulation Diameter over Sheath

138 kV Power Cables

Dimensional

Typical Shipping Reel Size in

126x95

126x95

126x95

126x95

126x95

150x95

150x95

150x95

150x95

150x95

Shipping Reel Capacity2

ft

3,000

3,000

3,000

3,000

2,950

3,000

2,725

2,500

2,225

2,000

Conductor Shield

kV/mm

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.3

6.3

6.1

Insulation Shield

kV/mm

2.7

3.0

3.2

3.4

3.6

3.7

3.9

4.0

4.0

4.0

Electrical Electrical Stress @ Uo

Short Circuit for 0.5s3 Conductor

kA

76.9

102.5

128.1

153.8

179.4

205.0

256.3

307.5

358.8

410.0

Sheath

kA

39.6

40.5

41.4

42.5

43.4

44.6

47.7

49.9

52.0

54.1

DC @ 20o C

Ω/kft

0.014

0.011

0.008

0.007

0.006

0.005

0.004

0.003

0.003

0.003

Conductor Resistance DC @ 90 C

Ω/kft

0.018

0.014

0.011

0.009

0.008

0.007

0.005

0.005

0.004

0.003

Capacitance

pF/ft

44.2

50.0

55.3

60.1

64.7

68.7

78.5

83.5

88.4

91.4

Charging Current

Amps/ kft

1.33

1.50

1.66

1.80

1.95

2.06

2.36

2.51

2.65

2.75

Ampacity @ 90o C

per circuit

Typical Single Ductbank4

Amps

750

860

960

1050

1110

1180

1423

1546

1651

1746

Power Rating

MVA

180

206

230

251

266

283

341

370

395

418

Typical Double Ductbank4

Amps

630

730

810

880

930

990

1172

1267

1345

1421

Power Rating

MVA

151

175

194

211

223

237

281

303

322

340

o

1 2

2500-4000 kcmil conductors are 5 segment Milliken conductors. Increased shipping reel capacity can be accommodated on request.

Declared values for 30 mils copper sheath. Thicker sheath can accommodate more current. 4ft top of duct, 1oC-m/W native, 0.8oC-m/W ductbank backfill, 25oC Ambient, 75% lf, 9” spacing, single-point or cross bonded

3

4

48

SW Standard Wall XLPE Copper Corrugated Sheath

Flange x Traverse

138 kV Power Cables

138 kV XLPE Aluminum Conductor Traditional Wall 850 mil XLPE Aluminum Corrugated Sheath

Cable Construction • Reverse Concentric Stranded Aluminum, Compressed Conductor • Super Smooth Conductor Shield • Super Clean XLPE Insulation • Traditional Wall – 850 mil XLPE

• True Triple Extrusion and Dry Cured • Firmly Bonded Insulation Shield • Welded Aluminum Corrugated Sheath • Polyethylene Jacket with Extruded Semi-Conductive Outer Layer

Cable Data Voltage Characteristics (kV) Max Voltage Rating

145

BIL Rating

650

Temperatures ( C) o

Nominal Conductor

90

Max. Emergency Conductor

105

Short Circuit Conductor

250

Minimum Installation

-10

Design Characteristics Design Standards Typical Test Voltages XLPE Loss Factor Relative Permittivity

AEIC, IEC 240 kV / 15 min. 0.0005 2.3

49

Section 4

Conductor Size in kcmil Dimensional

750

1000

1250

1500

1750

2000

Nominal

Conductor Diameter Diameter over Insulation

Overall Jacket Diameter

0.97

1.12

1.25

1.38

1.49

1.61

24.7

28.5

31.8

35.0

37.8

40.9

in

2.79

2.94

3.07

3.19

3.30

3.40

mm

70.8

74.6

78.0

81.0

83.8

86.4

in

3.44

3.61

3.76

3.90

4.02

4.13

mm

87.4

91.7

95.5

98.9

102.1

105.0

in

3.72

3.89

4.04

4.18

4.30

4.41

mm

94.5

98.8

102.6

106.0

109.2

112.1

lbs/ft

4.5

5.0

5.5

5.9

6.3

6.7

Min. Bending Radius (install/perm.)

in

74/56

78/58

81/61

84/63

86/64

88/66

Maximum Pulling Tension

lbs

4,500

6,000

7,500

9,000

10,500

12,000

Flange x Traverse

in

150x95

150x95

158x95

158x95

158x95

158x95

Shipping Reel Capacity1

ft

3,000

3,000

2,925

2,925

2,775

2,800

Conductor Shield

kV/mm

6.1

5.9

5.7

5.5

5.4

5.3

Insulation Shield

kV/mm

2.4

2.5

2.5

2.6

2.6

2.7

Conductor

kA

50.8

67.7

84.6

101.5

118.5

135.4

Sheath

kA

47.1

49.4

51.4

53.2

54.9

56.5

DC @ 20o C

Ω/kft

0.023

0.017

0.014

0.012

0.010

0.009

DC @ 90o C

Ω/kft

0.030

0.022

0.018

0.015

0.013

0.011

Capacitance

pF/ft

41.4

45.0

48.3

51.2

53.8

56.3

Charging Current

Amps/ kft

1.24

1.35

1.45

1.54

1.62

1.69

Total Weight

138 kV Power Cables

Diameter over Sheath

in mm

Typical Shipping Reel Size

Electrical Electrical Stress @ Uo

Short Circuit for 0.5s

2

Ampacity @ 90o C

Amps

580

680

760

840

900

960

Power Rating

MVA

139

163

182

201

216

230

Typical Double Ductbank***

Amps

500

580

640

700

760

800

Power Rating

MVA

120

139

153

168

182

192

Typical Single Ductbank

1 2 3

per circuit 3

Increased shipping reel capacity can be accommodated on request. Declared values for 50 mils aluminum sheath. Thicker sheath can accommodate more current. 4ft top of duct, 1oC-m/W native, 0.8oC-m/W ductbank backfill, 25oC Ambient, 75% lf, 9” spacing, single-point or cross bonded

50

Traditional Wall 850 mil XLPE Aluminum Corrugated Sheath

Conductor Resistance

138 kV Power Cables

138 kV XLPE Aluminum Conductor SW Standard Wall XLPE Aluminum Corrugated Sheath

Cable Construction • Reverse Concentric Stranded Aluminum, Compressed Conductor • Super Smooth Conductor Shield • Super Clean XLPE Insulation • 650 mil XLPE minimum

• True Triple Extrusion and Dry Cured • Firmly Bonded Insulation Shield • Welded Aluminum Corrugated Sheath • Polyethylene Jacket with Extruded Semi-Conductive Outer Layer

Cable Data Voltage Characteristics (kV) Max Voltage Rating

145

BIL Rating

650

Temperatures ( C) o

Nominal Conductor

90

Max. Emergency Conductor

105

Short Circuit Conductor

250

Minimum Installation

-10

Design Characteristics Design Standards Typical Test Voltages XLPE Loss Factor Relative Permittivity

AEIC, IEC 240 kV / 15 min. 0.0005 2.3

51

Section 4

Conductor Size in kcmil Dimensional

750

1000

1250

1500

1750

2000

Nominal

Conductor Diameter Insulation Thickness

Diameter over Sheath

0.97

1.12

1.26

1.38

1.49

1.61

24.7

28.5

31.9

35.0

37.8

40.9

mils

770

730

700

680

660

650

mm

19.6

18.5

17.8

17.3

16.8

16.5

in

2.63

2.70

2.77

2.85

2.92

3.00

mm

66.8

68.5

70.4

72.4

74.2

76.3

in

3.26

3.34

3.41

3.50

3.57

3.67

mm

82.8

84.7

86.6

88.8

90.7

93.1

Overall Jacket Diameter

in

3.54

3.62

3.69

3.78

3.85

3.95

mm

89.9

91.8

93.7

95.9

97.8

100.3

Total Weight

lbs/ft

4.2

4.5

4.7

5.1

5.4

5.7

Min. Bending Radius (install/perm.)

in

71/53

72/54

74/55

76/57

77/58

79/59

Maximum Pulling Tension

lbs

4,500

6,000

7,500

9,000

10,500

12,000

in

126x95

126x95

126x95

126x95

150x95

150x95

ft

3,000

3,000

2,950

2,950

3,000

3,000

Conductor Shield

kV/mm

6.5

6.5

6.5

6.5

6.5

6.5

Insulation Shield

kV/mm

2.7

3.0

3.2

3.4

3.6

3.7

Conductor

kA

50.8

67.7

84.6

101.5

118.5

135.4

Sheath

kA

44.6

45.6

46.6

47.8

48.8

50.1

DC @ 20o C

Ω/kft

0.023

0.017

0.014

0.012

0.010

0.009

138 kV Power Cables

Diameter over Insulation

in mm

Typical Shipping Reel Size Flange x Traverse Shipping Reel Capacity

1

Electrical Electrical Stress @ Uo

Short Circuit for 0.5s2

DC @ 90 C

Ω/kft

0.030

0.022

0.018

0.015

0.013

0.011

Capacitance

pF/ft

44.2

50.0

55.3

60.1

64.7

68.7

Charging Current

Amps/ kft

1.33

1.50

1.66

1.80

1.95

2.06

590

690

770

850

920

980

o

Ampacity @ 90o C Typical Single Ductbank

per circuit 3

Amps

Power Rating

MVA

142

165

185

204

220

235

Typical Double Ductbank3

Amps

500

580

650

710

770

810

Power Rating

MVA

120

139

156

170

185

194

Increased shipping reel capacity can be accommodated on request. Declared values for 50 mils aluminum sheath. Thicker sheath can accommodate more current. 3 4ft top of duct, 1oC-m/W native, 0.8oC-m/W ductbank backfill, 25oC Ambient, 75% lf, 9” spacing, single-point or cross bonded 1 2

52

SW Standard Wall XLPE Aluminum Corrugated Sheath

Conductor Resistance

138 kV Power Cables

138 kV XLPE Copper Conductor Traditional Wall 850 mil XLPE Copper Neutrals, Copper Composite Laminate Sheath

Cable Construction • Reverse Concentric Stranded Copper, Compressed Conductor or Milliken • Super Smooth Conductor Shield • Super Clean XLPE Insulation • Traditional Wall – 850 mil XLPE

• True Triple Extrusion and Dry Cured • Firmly Bonded Insulation Shield • Copper Neutrals with Copper Composite Laminate Sheath • Polyethylene Jacket with Extruded Semi-Conductive Outer Layer

Cable Data Voltage Characteristics (kV) Max Voltage Rating

145

BIL Rating

650

Temperatures ( C) o

Nominal Conductor

90

Max. Emergency Conductor

105

Short Circuit Conductor

250

Minimum Installation

-10

Design Characteristics Design Standards Typical Test Voltages XLPE Loss Factor Relative Permittivity

AEIC, IEC 240 kV / 15 min. 0.0005 2.3

53

Section 4

Conductor Size in kcmil1

750

1000

1250

1500

1750

2000

2500

3000

3500

4000

Nominal

Conductor Diameter

in

0.97

1.12

1.25

1.37

1.48

1.61

1.76

1.92

2.08

2.21

mm

24.7

28.5

31.8

34.8

37.6

40.9

44.7

48.8

52.8

56.1

in

2.79

2.94

3.07

3.19

3.30

3.40

3.66

3.82

3.98

4.11

mm

70.8

74.6

78.0

81.0

83.8

86.4

93.0

97.1

101.0

104.4

in

3.17

3.32

3.46

3.58

3.69

3.79

4.07

4.23

4.39

4.52

mm

80.6

84.4

87.8

90.8

93.6

96.2

103.4

107.5

111.4

114.8

in

3.49

3.64

3.78

3.90

4.01

4.11

4.39

4.55

4.71

4.84

mm

88.7

92.5

95.9

98.9

101.7

104.3

111.5

115.6

119.5

123.0

Diameter over Insulation Diameter over Sheath Overall Jacket Diameter Total Weight

lbs/ft

6.8

7.8

8.8

9.7

10.7

11.6

13.8

15.6

17.5

19.3

Min. Bending Radius (install/ perm.)

in

70/52

73/55

76/57

78/58

80/60

82/62

88/66

91/68

94/71

97/73

Maximum Pulling Tension

lbs

6,000

8,000

10,000

12,000

14,000

16,000

20,000

24,000

28,000

32,000

138 kV Power Cables

Dimensional

Typical Shipping Reel Size Flange x Width

in

138x95

138x95

150x95

150x95

150x95

150x95

158x95

158x95

158x95

158x95

Shipping Reel Capacity2

ft

3,000

3,000

3,000

3,000

2,733

2,725

2,700

2,375

2,125

1,900

Conductor Shield

kV/mm

6.1

5.9

5.7

5.5

5.4

5.3

5.1

5.0

4.9

4.9

Insulation Shield

kV/mm

2.4

2.5

2.5

2.6

2.6

2.7

2.7

2.8

2.8

2.9

Electrical

Short Circuit for 0.5s3 Conductor

kA

76.9

102.5

128.1

153.8

179.4

205.0

256.3

307.5

358.8

410.0

Sheath

kA

43.9

44.2

44.6

44.9

45.2

45.5

46.2

46.6

47.0

47.4

DC @ 20o C

Ω/kft

0.014

0.011

0.008

0.007

0.006

0.005

0.004

0.003

0.003

0.003

DC @ 90 C

Ω/kft

0.018

0.014

0.011

0.009

0.008

0.007

0.005

0.005

0.004

0.003

Capacitance

pF/ft

41.4

45.0

48.3

51.2

53.8

56.3

62.4

66.2

69.8

73.0

Charging Current

Amps/ kft

1.24

1.35

1.45

1.54

1.62

1.69

1.87

1.99

2.10

2.19

Ampacity @ 90o C

per circuit

Typical Single Ductbank4

Amps

750

870

970

1060

1140

1210

1455

1592

1714

1821

Power Rating

MVA

180

208

232

254

273

290

348

381

410

436

Typical Double Ductbank4

Amps

640

740

820

890

950

1000

1206

1314

1410

1493

Power Rating

MVA

153

177

196

213

228

240

289

315

338

357

Conductor Resistance o

2500-4000 kcmil conductors are 5 segment Milliken conductors. Increased shipping reel capacity can be accommodated on request. 3 Declared values for 80 x 14 AWG copper wire screen with 6 mil copper tape shield. Larger wires can accommodate more current. 4 4ft top of duct, 1oC-m/W native, 0.8oC-m/W ductbank backfill, 25oC Ambient, 75% lf, 9” spacing, single-point or cross bonded 1 2

54

Traditional Wall 850 mil XLPE Copper Neutrals, Copper Composite Laminate Sheath

Electrical Stress @ Uo

138 kV Power Cables

138 kV XLPE Copper Conductor SW Standard Wall XLPE Copper Neutrals, Copper Composite Laminate Sheath

Cable Construction • Reverse Concentric Stranded Copper, Compressed Conductor or Milliken • Super Smooth Conductor Shield • Super Clean XLPE Insulation • 630 mil XLPE minimum

• True Triple Extrusion and Dry Cured • Firmly Bonded Insulation Shield • Copper Neutrals with Copper Composite Laminate Sheath • Polyethylene Jacket with Extruded Semi-Conductive Outer Layer

Cable Data Voltage Characteristics (kV) Max Voltage Rating

145

BIL Rating

650

Temperatures ( C) o

Nominal Conductor

90

Max. Emergency Conductor

105

Short Circuit Conductor

250

Minimum Installation

-10

Design Characteristics Design Standards Typical Test Voltages XLPE Loss Factor Relative Permittivity

AEIC, IEC 240 kV / 15 min. 0.0005 2.3

55

Section 4

Conductor Size in kcmil1

750

1000

1250

1500

1750

2000

2500

3000

3500

4000

Nominal

Conductor Diameter

in

0.97

1.12

1.25

1.37

1.48

1.61

1.76

1.92

2.08

2.21

mm

24.7

28.5

31.8

34.8

37.6

40.9

44.7

48.8

52.8

56.1

mils

770

730

700

680

660

650

630

630

630

640

mm

19.6

18.5

17.8

17.3

16.8

16.5

16.0

16.0

16.0

16.3

in

2.63

2.70

2.77

2.85

2.92

3.00

3.22

3.38

3.54

3.69

mm

66.8

68.5

70.4

72.4

74.2

76.3

81.8

85.9

89.8

93.7

in

3.01

3.08

3.16

3.24

3.31

3.39

3.63

3.79

3.95

4.10

mm

76.5

78.3

80.1

82.2

83.9

86.1

92.2

96.3

100.2

104.2

Overall Jacket Diameter

in

3.33

3.40

3.48

3.56

3.63

3.71

3.95

4.11

4.27

4.42

mm

84.6

86.4

88.3

90.3

92.1

94.2

100.4

104.4

108.4

112.3

Total Weight

lbs/ft

6.4

7.3

8.1

8.9

9.8

10.6

12.7

14.4

16.3

18.1

Min. Bending Radius (install/ perm.)

in

67/50

68/51

70/52

71/53

73/54

74/56

79/59

82/62

85/64

88/66

Maximum Pulling Tension

lbs

6,000

8,000

10,000

12,000

14,000

16,000

20,000

24,000

28,000

32,000

Insulation Thickness Diameter over Insulation Diameter over Sheath

158x95

Flange x Traverse

in

126x95

138x95

138x95

138x95

138x95

138x95

150x95

150x95

Shipping Reel Capacity2

ft

3,000

3,000

3,000

3,000

3,000

2,775

3,000

2,625

2,325

2,050

Conductor Shield

kV/mm

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.3

6.3

6.1

Insulation Shield

kV/mm

2.7

3.0

3.2

3.4

3.6

3.7

3.9

4.0

4.0

4.0

150x95

Electrical Electrical Stress @ Uo

Short Circuit for 0.5s

3

Conductor

kA

76.9

102.5

128.1

153.8

179.4

205.0

256.3

307.5

358.8

410.0

Sheath

kA

45.4

43.6

43.8

44.0

44.2

44.4

45.0

45.5

45.9

46.3

Conductor Resistance

1 2

DC @ 20o C

Ω/kft

0.014

0.011

0.008

0.007

0.006

0.005

0.004

0.003

0.003

0.003

DC @ 90o C

Ω/kft

0.018

0.014

0.011

0.009

0.008

0.007

0.005

0.005

0.004

0.003

Capacitance

pF/ft

44.2

50.0

55.3

60.1

64.7

68.7

78.5

83.5

88.4

91.4

Charging Current

Amps/ kft

1.33

1.50

1.66

1.80

1.95

2.06

2.36

2.51

2.65

2.75

Ampacity @ 90o C

per circuit

Typical Single Ductbank4

Amps

760

880

980

1070

1150

1220

1472

1610

1733

1840

Power Rating

MVA

182

211

235

256

275

292

352

385

415

440

Typical Double Ductbank4

Amps

640

740

820

890

960

1010

1214

1323

1419

1502

Power Rating

MVA

153

177

196

213

230

242

291

317

340

360

2500-4000 kcmil conductors are 5 segment Milliken conductors. Increased shipping reel capacity can be accommodated on request.

56

Declared values for 80 x 14 AWG copper wire screen with 6 mil copper tape shield. Larger wires can accommodate more current. 4ft top of duct, 1oC-m/W native, 0.8oC-m/W ductbank backfill, 25oC Ambient, 75% lf, 9” spacing, single-point or cross bonded

3

4

SW Standard Wall XLPE Copper Neutrals, Copper Composite Laminate Sheath

Typical Shipping Reel Size

138 kV Power Cables

Dimensional

138 kV Power Cables

138 kV XLPE Aluminum Conductor Traditional Wall 850 mil XLPE Copper Neutrals, Aluminum Composite Laminate Sheath

Cable Construction • Reverse Concentric Stranded Aluminum, Compressed Conductor • Super Smooth Conductor Shield • Super Clean XLPE Insulation • Traditional Wall – 850 mil XLPE

• True Triple Extrusion and Dry Cured • Firmly Bonded Insulation Shield • Copper Neutrals with Aluminum Composite Laminate Sheath • Polyethylene Jacket with Extruded Semi-Conductive Outer Layer

Cable Data Voltage Characteristics (kV) Max Voltage Rating

145

BIL Rating

650

Temperatures ( C) o

Nominal Conductor

90

Max. Emergency Conductor

105

Short Circuit Conductor

250

Minimum Installation

-10

Design Characteristics Design Standards Typical Test Voltages XLPE Loss Factor Relative Permittivity

AEIC, IEC 240 kV / 15 min. 0.0005 2.3

57

Section 4

Conductor Size in kcmil Dimensional

750

1000

1250

1500

1750

2000

Nominal

Conductor Diameter Diameter over Insulation

Overall Jacket Diameter

0.97

1.12

1.26

1.38

1.49

1.61

24.7

28.5

31.9

35.0

37.8

40.9

in

2.79

2.94

3.07

3.19

3.30

3.40

mm

70.8

74.6

78.0

81.0

83.8

86.4

in

3.18

3.33

3.46

3.58

3.69

3.79

mm

80.7

84.5

87.8

90.9

93.7

96.3

in

3.50

3.65

3.78

3.90

4.01

4.11

mm

88.8

92.6

96.0

99.0

101.8

104.4

lbs/ft

5.0

5.5

5.9

6.3

6.7

7.1

Min. Bending Radius (install/perm.)

in

70/52

73/55

76/57

78/58

80/60

82/62

Maximum Pulling Tension

lbs

4,500

6,000

7,500

9,000

10,500

12,000

Flange x Width

in

138x95

138x95

150x95

150x95

150x95

150x95

Shipping Reel Capacity1

ft

3,000

3,000

3,000

3,000

2,725

2,725

Conductor Shield

kV/mm

6.1

5.9

5.7

5.5

5.4

5.3

Insulation Shield

kV/mm

2.4

2.5

2.5

2.6

2.6

2.7

Conductor

kA

50.8

67.7

84.6

101.5

118.5

135.4

Sheath

kA

42.9

43.2

43.5

43.8

44.1

44.3

DC @ 20o C

Ω/kft

0.023

0.017

0.014

0.012

0.010

0.009

DC @ 90o C

Ω/kft

0.030

0.022

0.018

0.015

0.013

0.011

Capacitance

pF/ft

41.4

45.0

48.3

51.2

53.8

56.3

Charging Current

Amps/ kft

1.24

1.35

1.45

1.54

1.62

1.69

Total Weight

138 kV Power Cables

Diameter over Sheath

in mm

Typical Shipping Reel Size

Electrical Electrical Stress @ Uo

Short Circuit for 0.5s

2

Ampacity @ 90o C

per circuit Amps

590

690

780

860

930

990

Power Rating

MVA

142

165

187

206

223

237

Typical Double Ductbank3

Amps

500

580

650

720

770

830

Power Rating

MVA

120

139

156

173

185

199

Typical Single Ductbank

3

Increased shipping reel capacity can be accommodated on request. Declared values for 80 x 14 AWG copper wire screen with 8 mil aluminum tape shield. Larger wires can accommodate more current. 4ft top of duct, 1oC-m/W native, 0.8oC-m/W ductbank backfill, 25oC Ambient, 75% lf, 9” spacing, single-point or cross bonded

1 2 3

58

Traditional Wall 850 mil XLPE Copper Neutrals, Aluminum Composite Laminate Sheath

Conductor Resistance

138 kV Power Cables

138 kV XLPE Aluminum Conductor SW Standard Wall XLPE Copper Neutral, Aluminum Composite Laminate Sheath

Cable Construction • Reverse Concentric Stranded Aluminum, Compressed Conductor • Super Smooth Conductor Shield • Super Clean XLPE Insulation • 650 mil XLPE minimum

• True Triple Extrusion and Dry Cured • Firmly Bonded Insulation Shield • Copper Neutrals with Aluminum Composite Laminate Sheath • Polyethylene Jacket with Extruded Semi-Conductive Outer Layer

Cable Data Voltage Characteristics (kV) Max Voltage Rating

145

BIL Rating

650

Temperatures ( C) o

Nominal Conductor

90

Max. Emergency Conductor

105

Short Circuit Conductor

250

Minimum Installation

-10

Design Characteristics Design Standards Typical Test Voltages XLPE Loss Factor Relative Permittivity

AEIC, IEC 240 kV / 15 min. 0.0005 2.3

59

Section 4

Conductor Size in kcmil Dimensional

750

1000

1250

1500

1750

2000

Nominal

Conductor Diameter Insulation Thickness

Diameter over Sheath

0.97

1.12

1.26

1.38

1.49

1.61

24.7

28.5

31.9

35.0

37.8

40.9

mils

770

730

700

680

660

650

mm

19.6

18.5

17.8

17.3

16.8

16.5

in

2.63

2.70

2.77

2.85

2.92

3.00

mm

66.8

68.5

70.4

72.4

74.2

76.3

in

3.02

3.09

3.16

3.24

3.31

3.39

mm

76.6

78.4

80.2

82.2

84.0

86.2

Overall Jacket Diameter

in

3.34

3.41

3.48

3.56

3.63

3.71

mm

84.8

86.5

88.4

90.3

92.2

94.3

Total Weight

lbs/ft

4.7

5.0

5.3

5.6

5.9

6.2

Min. Bending Radius (install/perm.)

in

67/50

68/51

70/52

71/53

73/54

74/56

Maximum Pulling Tension

lbs

4,500

6,000

7,500

9,000

10,500

12,000

in

126x95

138x95

138x95

138x95

138x95

138x95

ft

3,000

3,000

3,000

3,000

3,000

2,775

Conductor Shield

kV/mm

6.5

6.5

6.5

6.5

6.5

6.5

Insulation Shield

kV/mm

2.7

3.0

3.2

3.4

3.6

3.7

Conductor

kA

50.8

67.7

84.6

101.5

118.5

135.4

Sheath

kA

42.5

42.7

42.8

43.0

43.2

43.4

DC @ 20o C

Ω/kft

0.023

0.017

0.014

0.012

0.010

0.009

138 kV Power Cables

Diameter over Insulation

in mm

Typical Shipping Reel Size Flange x Traverse Shipping Reel Capacity

1

Electrical Electrical Stress @ Uo

Short Circuit for 0.5s2

DC @ 90 C

Ω/kft

0.028

0.021

0.017

0.014

0.012

0.011

Capacitance

pF/ft

44.2

50.0

55.3

60.1

64.7

68.7

Charging Current

Amps/ kft

1.33

1.50

1.66

1.80

1.95

2.06

600

700

790

870

940

1000

o

Ampacity @ 90o C Typical Single Ductbank

per circuit 3

Amps

Power Rating

MVA

144

168

189

208

225

240

Typical Double Ductbank3

Amps

500

590

660

720

780

830

Power Rating

MVA

120

142

158

173

187

199

Increased shipping reel capacity can be accommodated on request. Declared values for 80 x 14 AWG copper wire screen with 8 mil aluminum tape shield. Larger wires can accommodate more current. 3 4ft top of duct, 1oC-m/W native, 0.8oC-m/W ductbank backfill, 25oC Ambient, 75% lf, 9” spacing, single-point or cross bonded 1 2

60

SW Standard Wall XLPE Copper Neutral, Aluminum Composite Laminate Sheath

Conductor Resistance

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