Power Cable: XLPE Cable

Finolex has developed a special grade XLPE compound ‘FINVUL-X’ to be used as the insulating material suitable for LT (upto 1100 volts) applications. This is a Thermoset type of polymer enriched with cross linking agent. This is extruded over the conductor using modern extruders and is thoroughly cross linked under controlled conditions. This XLPE insulation overcomes the drawbacks of PVC, hitherto extensively used as an insulating material, without losing any of PVC’s desirable properties.

Following are the advantages of special grade XLPE cables over that of PVC Insulated cables:

Higher Current Rating: Withstands continuous conductor temperature of 900C, whereas PVC withstands only 700C, which means higher current carrying capacity.

Higher Overload Capacity: These special grade XLPE cables can operate even at 1300C, during emergency, unlike PVC Cables which cannot operate beyond 1200C. Thus in an emergency, the entire system need not go out of commission if some of the cables fail, because the other cables in parallel can carry a higher load.

Higher Short Circuit Rating: Can withstand conductor temperatures of upto 2500C during a short circuit – PVC cannot withstand more than 1600C.

Lighter in Weight, Smaller Bending Radius: Lighter weight, smaller bending radius than PVC enables installation of Finolex XLPE cables even in cramped space conditions. The cables require less support, thus lowering installation costs.

Lower Di-electric Constant and Power Factor: Results in saving in power losses which means saving in costs, particularly for higher voltage.

Better Impact, Abrasion, and Corrosion Resistance: Safer than PVC Cables against mechanical damage, abrasion and corrosion.

Easier Jointing and Termination: Requires no special skills or equipment for jointing and termination.