1250 MCM Aluminum SW Standard Wall Corrugated Sheath 345/400 kV XLPE Power Cable

1250 MCM Aluminum SW Standard Wall Corrugated Sheath 345/400 kV XLPE Power Cable

Applications:

Predominantly used for underground transmission in conduit systems, suitable for use in wet or dry locations, direct burial, underground duct, and where exposed to sunlight. To be used at 345,000 volts or less and at conductor temperatures not to exceed 90°C for normal operation.

Also Known As:

1250 MCM Aluminum SW XLPE power cable, 345/400 kV XLPE cable, Corrugated sheath power cable, High voltage XLPE cable, 1250 MCM Aluminum power cable XLPE, 345 kV power cable, XLPE insulated power cable, Corrugated sheath cable 345 kV, XLPE cable for high voltage, 400 kV copper XLPE cable.

Cable Construction:

Conductor: Concentric Stranded, Compact, or Segmental Copper Conductor
Conductor Shield: Smooth
Insulation: Super Clean XLPE Insulation with a true triple extrusion and dry curing process.
Shielding: Firmly Bonded Insulation Shield
Outer Sheath: Polyethylene jacket with an extruded semi-conductive outer layer.
Moisture Protection: Copper moisture-impervious sheath.

CABLE DATA:

Voltage Characteristics (kV)

Max Voltage Rating: 420
BIL Rating: 1300/1425

Temperatures (°C)

Nominal Conductor: 90
Max. Emergency Conductor: 105
Short Circuit Conductor: 250
Minimum Installation: -10

Design Characteristics

Design Standards: AEIC, IEC
Factory Test Voltages (@400 kV): 440 kV / 60 min.
XLPE Loss Factor: 0.0005
Relative Permittivity: 2.3

Standards & References:

• ICEA S-108-720 AEIC CS9 - And IEC 60840 or 62067 upon request as applicable

Specifications:

Conductor Size: 1250 MCM
Conductor Dia. (inches):    1.19
Insulation Thickness (mils):   1260
Diameter Over Insulation (inches):  3.88
Overall Jacket Diameter  (inches):  4.91
Min. Bending Radius (install / perm.) (inches):   89/59
Capacitance (pF/ft):    38.37
Charging Current (A/kft): 3.37
Cable Weight (lbs/ft):   8.24
30 mil Sheath2 Short Ckt @ 0.5s (kA): 63.5
Ampacity @ 90°C; Single Circuit (Fig 1): 720 Amps
Power Rating:   499  MVA
Ampacity @ 90°C; Double Circuit (Fig 2): 610 Amps
Power Rating:  423 MVA