Southwire’s 15KV cables are suited for use in wet and dry areas, conduits, ducts, troughs, trays, direct burial when installed with a grounding conductor in close proximity that conforms to NEC section 311.36 and 250.4(A)(5), and where superior electrical properties are desired. These cables are capable of operating continuously at the conductor temperature not in excess of 105°C for normal operation, 140°C for emergency overload, and 250°C for short circuit conditions. Rated at -25°C for cold bend. ST1 (low smoke) Rated for sizes 1/0 and larger. Rated for 1000 lbs./FT maximum sidewall pressure.
Cond. Size | Cond. Strands | Diameter Over Conductor (in) (cm) | Diameter Over Insulation (in) (cm) | Inner Layer Thickness (mils) (mm) | Diameter Over Shield (in) (cm) | Outer Layer Thickness (mils) (mm) | Approx. OD (in) (cm) | Approx. Weight (lbs/1000') (kgs/km) | Max Pull Tension (lbs) (kg) | Min. Bend Radius (in) (cm) | Conduit Size (in) (cm) | |
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1 AWG
1 AWG
|
19
19
|
0.322
0.82
|
0.800
2.03
|
220
5.59
|
0.860
2.18
|
80
2.03
|
1.040
2.64
|
739
1100
|
669
303.45
|
12.4
31.50
|
3.0
7.62
|
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1/0 AWG
1/0 AWG
|
19
19
|
0.361
0.92
|
0.840
2.13
|
220
5.59
|
0.900
2.29
|
80
2.03
|
1.080
2.74
|
831
1237
|
844
382.83
|
12.9
32.77
|
3.0
7.62
|
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4/0 AWG
4/0 AWG
|
19
19
|
0.512
1.30
|
0.990
2.51
|
220
5.59
|
1.050
2.67
|
80
2.03
|
1.230
3.12
|
1260
1875
|
1692
767.48
|
14.7
37.34
|
3.5
8.89
|
More Options |
350 KCMIL
350 KCMIL
|
37
37
|
0.661
1.68
|
1.147
2.91
|
220
5.59
|
1.207
3.07
|
80
2.03
|
1.387
3.52
|
1795
2671
|
2800
1270.06
|
16.6
42.16
|
4.0
10.16
|
More Options |
500 KCMIL
500 KCMIL
|
37
37
|
0.789
2.00
|
1.252
3.18
|
220
5.59
|
1.312
3.33
|
80
2.03
|
1.492
3.79
|
2329
3466
|
4000
1814.37
|
17.9
45.47
|
4.5
11.43
|
More Options |
750 KCMIL
750 KCMIL
|
61
61
|
0.968
2.46
|
1.464
3.72
|
220
5.59
|
1.524
3.87
|
110
2.79
|
1.764
4.48
|
3358
4997
|
6000
2721.55
|
21.1
53.59
|
5.0
12.70
|
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1500 KCMIL
1500 KCMIL
|
91
91
|
1.370
3.48
|
1.900
4.83
|
220
5.59
|
1.960
4.98
|
110
2.79
|
2.200
5.59
|
6031
8975
|
12000
5443.10
|
26.4
67.06
|
|
* Conduit size based on 3 phase 40% fill-factor without ground
Cond. Size | DC Resistance at 25C (ohms/1000') (ohms/km) | AC Resistance at 75C (ohms/1000') (ohms/km) | Capacitive Reactance (ohms/1000') (ohms/km) | Inductive Reactance (ohms/1000') (ohms/km) | Zero Sequence Impedance (ohms/1000') (ohms/1000') | Positive Sequence Impedance (ohms/1000') (ohms/1000') | Shield Short Circuit Current 6 Cycles | Allowable Ampacity In Duct 90C | Allowable Ampacity In Duct 105C | Allowable Ampacity In Air 90C | Allowable Ampacity In Air 105C | |
More Options |
1 AWG
1 AWG
|
0.128
0.19
|
0.162
0.24
|
0.047
0.07
|
0.049
0.07
|
0.532 + j0.401
0.532 + j0.401
|
0.162 + j0.049
0.162 + j0.049
|
2695
2695
|
175
175
|
185
185
|
225
225
|
250
250
|
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1/0 AWG
1/0 AWG
|
0.102
0.15
|
0.128
0.19
|
0.043
0.06
|
0.047
0.07
|
0.496 + j0.384
0.496 + j0.384
|
0.128 + j0.047
0.128 + j0.047
|
2816
2816
|
200
200
|
215
215
|
260
260
|
290
290
|
More Options |
4/0 AWG
4/0 AWG
|
0.051
0.08
|
0.065
0.10
|
0.034
0.05
|
0.042
0.06
|
0.424 + j0.328
0.424 + j0.328
|
0.066 + j0.042
0.066 + j0.042
|
3284
3284
|
295
295
|
315
315
|
400
400
|
445
445
|
More Options |
350 KCMIL
350 KCMIL
|
0.031
0.05
|
0.041
0.06
|
0.028
0.04
|
0.039
0.06
|
0.386 + j0.281
0.386 + j0.281
|
0.042 + j0.039
0.042 + j0.039
|
3770
3770
|
390
390
|
415
415
|
550
550
|
610
610
|
More Options |
500 KCMIL
500 KCMIL
|
0.022
0.03
|
0.030
0.04
|
0.025
0.04
|
0.037
0.06
|
0.363 + j0.249
0.363 + j0.249
|
0.031 + j0.037
0.031 + j0.037
|
4167
4167
|
465
465
|
500
500
|
685
685
|
765
765
|
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750 KCMIL
750 KCMIL
|
0.014
0.02
|
0.023
0.03
|
0.021
0.03
|
0.035
0.05
|
0.337 + j0.211
0.337 + j0.211
|
0.024 + j0.035
0.024 + j0.035
|
4752
4752
|
565
565
|
610
610
|
885
885
|
990
990
|
More Options |
1500 KCMIL
1500 KCMIL
|
0.007
0.01
|
0.017
0.03
|
0.016
0.02
|
0.032
0.05
|
0.293 + j0.152
0.293 + j0.152
|
0.018 + j0.031
0.018 + j0.031
|
6010
6010
|
815
815
|
880
880
|
1345
1345
|
1500
1500
|
* NEC ampacities are based on:
* For Duct: Table 310.60(C)(11) Detail 1.
* For Free Air: Table 310.60(C)(3).
* Inductive impedance is based on non-ferrous conduit with one diameter spacing center-to-center.
* Sequence Impedance values are based on Rho Earth Resistivity: 100 Ohm-Meter/1000ft, Spacing: one diameter spacing center-to-center..
* Capacitive Reactance is between Phase-to-Shield.