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    • Last modified Jun 11, 2020
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3C Cu Cond. CWS, GSWA and LSZH sheath

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Description

Standards

International :  IEC 60332-1-2
National :  BS 7835

Description

1-SCOPE

This specification covers three cores armoured cables.
 

2. CONSTRUCTION

2.1 Conductor

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

2.2 Insulation

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

2.3 Metallic Screen Layer

Copper wires + Open Helix Copper Tape on each core

2.4 Separation Sheath

Low Smoke Zero Halogen Compound .

2.5 Armour

GALVANIZED STEEL WIRES .

2.5 Sheath

Low Smoke Zero Halogen Compound .

Characteristics

Construction characteristics
Conductor materialCopper
Conductor shapeCircular
Material of the inner semi-conductorExtruded
InsulationXLPE
ScreenCopper wires + copper tape
Armour typeGalvanized steel wires
Outer sheathLSZH compound
Electrical characteristics
Thermal soil resistivity wet zone1.5K*m/W
Usage characteristics
Laying depth, center of system800mm
Ambient air temperature30°C
Ambient ground temperature20°C
Operating temperature, range-25 .. 55°C
Max. conductor temperature in service90°C
Short-circuit max. conductor temperature250°C
Specific characteristics
See all products
  • Colour
  • Conductor cross-section
  • Conductor diameter
  • Nominal insulation thickness
  • Screen section
  • Nominal armour wire diameter
  • 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 Colour Cross section (mm²) Conductor diam. (mm) Nom. insulation thick. (mm) Screen section (mm²) Nom. armour wire diam. (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)
M3N5URU000185 M3N5R 3*240/35//KEL M3N5URU 3*240/35 Red 240 18.1 3.4 35 3.15 3.5 79.0 14475 529 431 0.0754 0.0981
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Docs and info

  • TEST AT WORKS GENERALLY TO BS 7835

    Routine Tests

    - Max. DC conductors resistance at 20°C acc. to BS EN 60228

    - High voltage test acc. to BS 7835  parag. 18.6

    - Max. partial discharge test  acc. To BS 7835  parag. 18.5

     

    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 BS 7835     Parag.  19.7

                Separation sheath         :           according to BS 7835     Parag.  19.12

                Armouring                     :           according to BS 7835     Parag.  19.14

                Oversheath                   :           according to BS 7835     Parag.  19.15

     

    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 BS 7835

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

    Tests certificates will be provided by Liban Cables

  • DRAWING 3C MV CABLE CWS and GSWA

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