Southwire's 28kV HVTECK is a CSA armoured cable for industrial and commercial medium voltage applications. Rated FT4, -40°C, Hazardous Locations (HL). 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 for 1000 lbs /FT maximum sidewall pressure. These cables feature sunlight and moisture resistance, exceptional corona resistance, resistance to most chemical soils and acids and are flame retardant.
Cond. Size | Cond. Strands | Diameter Over Conductor (in) (cm) | Diameter Over Insulation (in) (cm) | Inner Layer Thickness (mils) (mm) | Diameter Over Shield (in) (cm) | Inner Jacket Thickness (mils) (mm) | Diameter Over Armor (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) | |
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350 KCMIL
350 KCMIL
|
37
37
|
0.661
1.68
|
1.267
3.22
|
280
7.11
|
1.341
3.41
|
80
2.03
|
1.865
4.74
|
60
1.52
|
1.985
5.04
|
2447
3642
|
2800
1270.06
|
23.8
60.45
|
1 Comply with ICEA S-93-639 Appendix C for jacket thickness determination
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 Directly Buried 90C | Allowable Ampacity In Air 90C | |
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350 KCMIL
350 KCMIL
|
0.031
0.05
|
0.041
0.06
|
0.041
0.06
|
0.047
0.07
|
0.371 + j0.255
0.371 + j0.255
|
0.042 + j0.047
0.042 + j0.047
|
4142
4142
|
459
459
|
537
537
|
* Inductive impedance is based on non-ferrous conduit with one diameter spacing center-to-center.
* CEC ampacities are based on:
3-1/C in air copper and aluminum: D17M
3-1/C direct buried copper and aluminum: D17A