XLPE INSULATED, PVC SHEATHED CABLE
Mainly for power supply and control. It can be installed in industrial area, such as in cable ducts, cable trunking, cable tray, cables ladders, as well as in switchgears.
Suitable for: Indoor or outdoor fixed installations, underground burial, wet or dry.
|Standard||According to IEC60502-1|
|Conductor||Plain Annealed Copper, Class 2 stranded Circular or Compacted
According to IEC60228, BS EN60228
|Outer Sheath||PVC of type ST2.
Outer Sheath Color: Black
|Insulation||Cross-linked Polyethylene (XLPE) Compound
- Single Core: Natural
- 2 Cores: Blue, Brown
- 3 Cores: Brown, Blue, Green/Yellow OR Brown, Black, Grey
- 4 Cores: Brown, Black, Grey, Blue
- 5 Cores: Brown, Black, Grey, Blue, Green/Yellow
- 5 Cores & Above (Multi-Cores): White cores with black numbering / Black cores with white numbering
|Temperature Range||Operating Temperature: -15°C to +90°C
Final Short Circuit Temperature: 250°C
|Min. Bending Radius||8 x cable overall diameter|
|Max. Tensile Stress||50 N/mm²|
|Features||Flame Retardant (IEC60332-1, BS EN60332-1)|
The working voltage of the to-be-constructed cable will determine the required thickness of the insulation, while the current-carrying capacity will decide the cross-sectional area of the conductor within the cable. When determining how to construct the cable and the required materials, environmental conditions like sunlight exposure, the presence of water and temperature will have to be taken into account. For cables that have to be sheathed, the environmental conditions will also play a part when deciding on the materials needed for the sheath.
High voltage power cables with circuits that are operating around 2,000 volts and above may require a conductive shield surrounding each conductor. That will ensure that each insulated conductor receives an equal amount of electrical stress. The shield may be referred to as a Hochstader shield, as Martin Hochstadter first patented the concept of a conductive shield in 1916. The modern-day high voltage cables use polymers like polyethylene for insulation. Cross-linked polyethylene (XLPE) is a commonly found in insulation for high voltage cables, although its uses can range from chemical transportation to pipework systems in building services. The rated maximum conductor temperature of cables insulated with XLPE is 90°C, although the emergency rating can reach 140°C. For high voltage cables, modified XLPE insulations can help to limit the amount of by-product gases that were generated during the process, shortening manufacturing time needed for the cables.