Southwire’s 35KV cables are suited for use in wet and dry areas, conduits, ducts, troughs, trays, direct burial, 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 -35°C for cold bend when UL listed. Rated at -25°C for cold bend and cold impact and marked with "LTDD" when CSA listed or dual UL/CSA listed. ST1 (low smoke) Rated for sizes 1/0 and larger. Rated for 1000 lbs./FT maximum sidewall pressure.
Cond. Size (AWG/Kcmil) | Cond. Strands | Diameter Over Conductor (in) (cm) | Diameter Over Insulation (in) (cm) | Insulation Thickness (mils) (mm) | Diameter Over Shield (in) (cm) | Jacket 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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500
500
|
37
37
|
0.789
2.00
|
1.652
4.20
|
420
10.67
|
1.712
4.35
|
110
2.79
|
1.952
4.96
|
2995
4457
|
4000
1814.37
|
23.4
59.44
|
5.5
13.97
|
* Conduit size based on 3 phase 40% fill-factor without ground
Cond. Size (AWG/Kcmil) | DC Resistance @ 25C (ohms/1000') (ohms/km) | AC Resistance @ 75C (ohms/1000') (ohms/km) | Capacitive Reactance (Mohms x 1000ft) (Mohms x 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 (amps) | In Duct Ampacity @ 90C (amps) | In Duct Ampacity @ 105C (amps) | In Air Ampacity @ 90C (amps) | In Air Ampacity @ 105C (amps) | |
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500
500
|
0.022
0.03
|
0.030
0.04
|
0.039
0.06
|
0.043
0.06
|
0.324 + j0.187
0.324 + j0.187
|
0.031 + j0.043
0.031 + j0.043
|
5406
5406
|
465
465
|
500
500
|
680
680
|
755
755
|
* 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.