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    • Last modified Apr 3, 2019
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3C Cu Cond. CTS, Unarmored

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Description

Standards

International :  IEC 60228; IEC 60332-1-2; IEC 60502-2

Description

1-SCOPE

This specification covers three cores unarmoured cables, conforming to IEC 60502-2 Specifications.
 

2. CONSTRUCTION

2.1 Conductor

Plain, annealed electrolytic copper conductors, circular stranded,conforming to the applicable requirements of IEC 60228.

2.2 Insulation

Extruded inner semi conductive layer, XLPE insulation and  extruded outer semi conductive layer .

2.3 Metallic Screen Layer

Copper tape on each core

2.4 Sheath

PVC .

3. TESTS

All tests required by IEC 60502-2 either on Raw material or on finished products.

Characteristics

Construction characteristics
Conductor materialCopper
Conductor shapeCircular
Material of the inner semi-conductorExtruded
InsulationXLPE
ScreenCopper tape
Outer sheathPVC
ColourBlack
Electrical characteristics
Thermal soil resistivity wet zone1.5K*m/W
Mechanical characteristics
Cable flexibility8xD
Usage characteristics
Laying depth, center of system800mm
Ambient air temperature30°C
Ambient ground temperature20°C
Operating temperature, range-15 .. 55°C
Max. conductor temperature in service90°C
Short-circuit max. conductor temperature250°C
Specific characteristics
See all products
  • Conductor cross-section
  • Conductor diameter
  • Nominal insulation thickness
  • Nominal outer sheath thickness
  • Nominal outer diameter
  • Approximate net weight
  • Perm current rating in air 30°C
  • Permissible current rating when buried
  • Max. DC resistance of the conductor at 20°C
  • A.C. Conductor resist. 50Hz and at 90 °C

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Nexans ref. Country ref. Name Cross section (mm²) Conductor diam. (mm) Nom. insulation thick. (mm) Nom. outer sheath thick. (mm) Nom. outer diam. (mm) Approx. net weight (kg/km) Perm current rating in air 30°C (A) Current rating, buried (A) Max. DC Resist. Cond. 20°C (Ohm/km) A.C. Conductor resist. 50Hz and at 90 °C (Ohm/km)
M3N2 000848 M3N2 3*120 M3N2 3*120 120 12.9 3.4 2.8 51.0 4813 351 298 0.153 0.196
M6N2 000745 M6N2 3*150 M6N2 3*150 150 14.2 8.0 3.5 73.0 7420 398 334 0.124 0.159
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Docs and info

  • TEST AT WORKS ACCORDING TO IEC 60502-2 Unarmored

    Routine Tests
    -Max. DC conductors resistance at 20°C acc. to IEC 60228 & IEC 60502-2 parag. 16.1 & 16.2
    -High voltage test acc. to IEC 60502-2 parag. 16.1 & 16.4
    -Max. partial discharge test at 1.73 Uo acc. to IEC 60502-2 parag. 16.1 & 16.3

    Liban Cables will carry out these tests on all the lengths and tests certificates will be provided                                                                 

     

    Sample tests

     -          Check of the build - up and color coding of the cable                                                      

    -          Check of dimensions   

                Insulation          :           according to IEC 60502-2                       Parag.  17.5.2

                Oversheath       :           according to IEC 60502-2                       Parag.  17.5.3

    - Hot Set Test for XLPE insulation according to IEC 60502-2 parag. 17.10

    These tests will be carried out on one length of each size during each inspection .

    Tests certificates will be provided by Liban Cables

     

    Type tests

    Mechanical characteristics on insulation and sheaths material (tensile strength and elongation at break) in accordance with IEC 60502-2.

    These tests will be carried out on one length of the order.

    Tests certificates will be provided by Liban Cables

  • Drawing Unarmored 3C MV

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