NFC33-226 12/20KV 1x630 AL C2

Description

Description

Usage

NF C 33-226 cables are the new generation of cables for public power distribution network 12/20 kV. They are AD8 following NF C 13-200 with a water pressure < 0,2 bar. Sheath is anti-termite resistant.

Design

The cable is made of 1 or 3 bunched cores.

Aluminium screen is  made to ground short-circuit currents of EdF network, up to 1000 A for 1 s. for underground networks.

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 stranded (RM)
Material of the inner semi-conductor
XLPE-SC
Insulation
XLPE (chemical)
Material of the external semi-conductor
Extruded strippable grooved elastomer
Material used for longitudinal water tightness
Swelling powder
Screen
Longitudinal aluminium tape
Outer sheath
PE
Sheath colour
Black
Protection
-

Dimensional characteristics

Dimensional characteristics

Conductor cross-section
630 mm²
Number of cores
1
Number of wires per strand
1
Conductor diameter
30.3 mm
Diameter over insulation
42.7 mm
Maximum outer diameter
47.8 mm
Approximate weight
1550 kg/km

Electrical characteristics

Electrical characteristics

Rated Voltage Uo/U (Um)
12/20 kV
A.C. Conductor resist. at 90 °C - flat formation
0.062 Ohm/km
Capacity of phase cores approx.
0 µF / km
Inductive resistance at 50Hz
0 Ohm/km
Max. DC resistance of the conductor at 20°C
0.0469 Ohm/km
Permissible current rating in open air
892 A
Permissible current rating when buried
- A
Voltage drop, single phase
- V/A.km

Mechanical characteristics

Mechanical characteristics

Cable flexibility
Rigid
Mechanical resistance to impacts
Good

Usage characteristics

Usage characteristics

Ambient installation temperature, range
-10 ... 50 °C
Flame retardant
C2, NF C 32-070
Weather resistance
Good
Resistant to termites
-

Resources

Resources

Documentation

Catalogue MT pdf — 3.2 MB

Selling & delivery Information

Marking

Example NEXANS - plant number - 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 - C2 RT installation temperature

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

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

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