M6N2 1*300

Description

Description

Standards

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

1-SCOPE

This specification covers Single core 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

2.4 Sheath

PVC .

3. TESTS

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

TEST AT WORKS according to IEC 60502-2

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

            Metallic screen  :           according to IEC 60502-2                       Parag.  17.7

            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 MV 1C UNARMORED

Characteristics

Characteristics

Construction characteristics

Construction characteristics

Conductor material
Copper
Number of conductors
1
Conductor shape
Circular
Material of the inner semi-conductor
Extruded
Insulation
XLPE
Material of the external semi-conductor
Extruded fully bonded
Screen
Copper tape
Outer sheath
PVC
Colour
Black
Conductor flexibility
Class 2 IEC 60228

Dimensional characteristics

Dimensional characteristics

Conductor cross-section
300 mm²
Conductor diameter
20.3 mm
Nominal insulation thickness
8.0 mm
Nominal outer sheath thickness
2.4 mm
Nominal outer diameter
36.0 mm
Approximate net weight
3813 kg/km

Electrical characteristics

Electrical characteristics

Test voltage
63 kV
Rated Voltage Uo/U (Um)
18 / 30 (36) kV
Perm current rating in air 30°C
735 A
Permissible current rating when buried
526 A
Max. DC resistance of the conductor at 20°C
0.0601 Ohm/km
A.C. Conductor resist. 50Hz and at 90 °C
0.0792 Ohm/km
Permissible short circuit current conductor 1s
43.4 kA
Thermal soil resistivity wet zone
1.5 °K.m/W

Mechanical characteristics

Mechanical characteristics

Cable flexibility
10xD

Usage characteristics

Usage characteristics

Laying depth, center of system
800 mm
Ambient air temperature
30 °C
Ambient ground temperature
20 °C
Max. conductor temperature in service
90 °C
Operating temperature, range
-15 - 55 °C
Short-circuit max. conductor temperature
250 °C

Resources

Resources

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