XLPE Insulated Cable

XLPE Insulated Cable-FAQs

• What is XLPE Cable?

  XLPE cable is the cable with XLPE insulation. XLPE refers to the crosslinked polyethylene which adopts the method of peroxide crosslinking and makes polyethylene molecules change from linear molecular structure to three-dimensional mesh structure, from thermoplastic material to thermosetting material, and the working temperature is increased from 70℃ to 90℃, which significantly improves the current carrying capacity of the cable. 

• What is the advantage of XLPE CABLE?

  XLPE power cable has the following advantages:

  1. Heat resistance: the XLPE of mesh solid structure has an excellent heat resistance and will not decompose and carbonize below 300℃, the long-term working temperature can reach 90℃, and the thermal life can reach 40 years.

  2. Insulation performance: XLPE maintains the original good insulation characteristics of the PE, and the insulation resistance is further increased. The tangent value of the dielectric loss angle is very small, and it is not affected by temperature.

  3. Mechanical properties: due to the establishment of new chemical bonds between macromolecules, the hardness, stiffness, wear-resistance and

  
  

• What's the difference between XLPE insulation and PVC insulation?

  XLPE insulation and PVC insulation are two different cables.                                                                                                              
  

  1. Different materials: PVC insulation is the insulation of polyvinyl chloride which is thermoplastic material. XLPE insulation is the insulation of cross-linked polyethylene which is thermosetting material.

  2. Usage: General indoor permanent works tend to choose XLPE insulated cables. PVC insulated cables normally used outdoors.

  PVC insulated cables are generally used in low voltage systems.  XLEP insulated cables are mostly used in high voltage systems.

  XLPE insulated cable is superior to PVC insulated cable in temperature resistance, voltage resistance and corrosion resistance.

  3. The maximum operation temperature

  The maximum rated temperature of conductor for the operation of PVC insulated cable is 70 degrees and the maximum temperature for short circuits (duration less than 5 seconds) is not more than 160 degrees Celsius.

  The maximum rated temperature of conductor for the operation of XLEP cable is 90 degrees and the maximum temperature for short circuits (duration less than 5 seconds) is not more than 250 degrees Celsius.