Description
Standards
International : IEC 60228; IEC 60332-1-2; IEC 60502-2Description
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 material | Copper |
Conductor shape | Circular |
Material of the inner semi-conductor | Extruded |
Insulation | XLPE |
Screen | Copper tape |
Outer sheath | PVC |
Electrical characteristics | |
Thermal soil resistivity wet zone | 1.5K*m/W |
Mechanical characteristics | |
Cable flexibility | 8xD |
Usage characteristics | |
Laying depth, center of system | 800mm |
Ambient air temperature | 30°C |
Ambient ground temperature | 20°C |
Operating temperature, range | -15 .. 55°C |
Max. conductor temperature in service | 90°C |
Short-circuit max. conductor temperature | 250°C |
Specific characteristics | |
See all products | |
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Products and services
Docs and info
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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 & 16.3Liban 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
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Drawing Unarmored 3C MV