FR-N20XA8E-AR 3x1x 50 Eca N/G BGN8

Description

Description

Standards

  • National
    NF C33-226

Usage

NF C33-226  cables are the new generation of cables for public power distribution network 12/20 kV. They are AD8 (water pressure < 0,2 bar), AF2 and AN3 complying with NF C13-200 standard. Sheath is anti-termite resistant.

 

Design

The cable is made of 1 or 3 bunched cores.

 

Laying condition

Burial depth : 0.80 m

Soil thermal resistivity : 0.85 K.m/W

 

Electrical caracteristics

 

Calculated from IEC 60949, permissible short circuit current is applicable for the conductor during 1s.

 

Options

NF C 33-226 cables can be manufactured with the following options:

  • Copper conductor
  • Other voltage
  • Other section
  • Grounding conductor
  • Thicker aluminium screen
  • Bunch
  • Re-enforced burying resistance (EDR) is ensured with an extruded polyethylene protection.

Characteristics

Characteristics

Construction characteristics

Construction characteristics

Conductor material
Aluminum
Conductor flexibility
Stranded class 2
Conductor shape
Circular compacted
Material of the inner semi-conductor
Extruded
Insulation
XLPE (chemical)
Material of the external semi-conductor
Extruded strippable smooth elastomer
Material used for longitudinal water tightness
Swellable tape
Screen
ALU/PET tape screening foil
Outer sheath
PE
Sheath colour
Black + 2 Grey Lines
Protection
None

Dimensional characteristics

Dimensional characteristics

Conductor cross-section
50 mm²
Number of cores
3
Number of wires per strand
-
Conductor diameter
- mm
Diameter over insulation
- mm
Maximum diameter over insulation
- mm
Average insulation thickness
- mm
Screen thickness
- µm
Average sheath thickness
- mm
Nominal outer diameter
58.1 mm
Approximate diameter of the bunched cable
- mm
Approximate weight
1920 kg/km
Nominal insulation thickness
- mm

Electrical characteristics

Electrical characteristics

Rated Voltage Uo/U (Um)
12 / 20 (24) kV
A.C. Conductor resist. at 90 °C - flat formation
- Ohm/km
A.C. Conductor resist. at 90 °C - trefoil formation
- Ohm/km
Capacity of phase cores approx.
0.17 µF / km
Inductive resistance at 50Hz
0.13 Ohm/km
Max. DC resistance of the conductor at 20°C
0.641 Ohm/km
Nominal inductance
0.43 mH/km
Perm. current rating buried 20°C - trefoil formation
188 A
Perm. current rating in air 30°C - trefoil formation
- A
Permissible short circuit current
- kA
Permissible short circuit current screen 1s
- kA
Voltage drop, 3 conductors
- V/A.km
Voltage drop, single phase
- V/A.km

Mechanical characteristics

Mechanical characteristics

Mechanical resistance to impacts
AG4
Maximum admissible traction load (Tm)
- daN

Usage characteristics

Usage characteristics

Ambient installation temperature, range
-10 ... 50 °C
Weather resistance
AN3 / AF2
Resistant to termites
Yes
Flame retardant
C2, NF C 32-070
Minimum dynamic operating bending radius
770.0 mm
Minimum static operating bending radius
385 mm
Water proof
AD8

Resources

Resources

Selling & delivery Information

Marking

Example NEXANS - plant number- BGN8 NF C 33-226 int. designation- section - Al - 12/20 (24) kV - year - month -  installation guide type - G sheath thickness - SC semi-conductor thickness - EC screen thickness - RT installation temperature Eca

Core identification: 1, 2, 3 helix-wise.

The marking is metric over one core sheath, as well as a tracing mark.

Declaration of Performance

  • Declaration of Performance n� : 1000750-FRBG
  • Certification Date : 10/22/18
  • AVCP (Assessment and Verification of Constancy of Performance) : System 3
  • Notified body : NB 0081
  • Declared performance : Eca

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