350 kcmil

Description

Description

Standards

  • Product
    ASTM B 496; ASTM B 8; ICEA S-93-639; UL 1072

 

 

 

Ampacity and Reactance Conditions

  • Ampacities of Insulated Single Copper Conductor Isolated in Air Based on Conductor Temperatures of 90°C and Ambient Air Temperature of 40°C. According to NEC, Table 310.60(C)(69).
  • Ampacities of Three Single-Insulated Copper Conductors in Underground Electrical Ducts (Three Conductors per Electrical Duct) Based on Ambient Earth Temperature of 20°C, 100% Load Factor, Thermal Resistance (RHO) of 90, Conductor Temperatures of 90°C. According to NEC, Table 310.60(C)(77).
  • Reactance Inductive to 90°C, 60Hz, 3 conductors spaced 1 diameter. Trifoil and flat configuration.

NOTE:

  • The data reported here are nominal and are subject to tolerances according to standards and normal manufacturing practices.
  • Other configurations not specified in this catalog may be available under special request and minimum manufacturing quantitie.

RECOMMENDATIONS FOR THE SELECTION OF ACCESSORIES AND DUCTS

The technical information presented here is for reference purposes only. Actual dimensions and construction details will only be available with the test reports for each manufacturing order. For the selection of accessories and/or ducts, it is recommended to measure directly on the actual dimensions of the cable using the appropriate methods and instruments. Centelsa by Nexans will not assume any responsibility for the selection of such elements.

Characteristics

Characteristics

Construction characteristics

Construction characteristics

Conductor material
Soft copper
Conductor shape
Circular compacted
Conductor flexibility
Class B
Insulation
XLPE (Cross-linked Polyethylene)
Screen
Copper tape
Jacket material
PVC

Dimensional characteristics

Dimensional characteristics

Conductor cross-section (AWG/KCMIL)
350 KCMIL
Total number of wires
37
Conductor cross-section
177 mm²
Conductor diameter
15.68 mm
Minimum insulation thickness
4.19 mm
Nominal outer diameter
31.21 mm
Approximate weight
2285 kg/km
Minimum outer sheath thickness
1.78 mm

Electrical characteristics

Electrical characteristics

Insulation Level
100 %
Maximum rated voltage
15 kV
Dielectric strength core to screen AC
35.0 kV
Time of application Dielectric strength core to screen AC
5 min.
Maximal partial discharge test
5 pC
Max. DC resistance of the conductor at 20°C
0.101 Ohm/km
Max. Electrical Resistance AC 60Hz 90°C
0.13 Ohm/km
Nominal capacitance
308.0 pF/m
Perm current rating in air 40°C
550 A
Permissible current rating buried/duct 20°C - Trefoil formation
390 A
Phase reactance 60 Hz - flat formation
0.141 Ohm/km
Phase reactance 60 Hz - trefoil formation
0.124 Ohm/km

Mechanical characteristics

Mechanical characteristics

Maximum Pull Tension of Conductor
12 kN
Minimum repeated bending diameter
375 mm

Usage characteristics

Usage characteristics

Flame retardant
IEC 60332-1-2
Maximum operating temperature
90 °C
Overload maximum core temperature
130 °C
Short-circuit max. conductor temperature
250 °C
U.V resistance
UL 2556 - Sunlight Resistance
Oil resistance
ICEA S-93-639 (70°C/4h)

Resources

Resources

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