Transcript
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
