Description
Standards
International : IEC 60332-1-2National : 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 material | Copper |
Conductor shape | Circular |
Material of the inner semi-conductor | Extruded |
Insulation | XLPE |
Screen | Copper wires + copper tape |
Armour type | Galvanized steel wires |
Outer sheath | LSZH compound |
Electrical characteristics | |
Thermal soil resistivity wet zone | 1.5K*m/W |
Usage characteristics | |
Laying depth, center of system | 800mm |
Ambient air temperature | 30°C |
Ambient ground temperature | 20°C |
Operating temperature, range | -25 .. 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 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
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DRAWING 3C MV CABLE CWS and GSWA