Power cable is special type of wires used to transform electricity. It is an assembly of two or more wires, usually held together with an overall protective sheath. These wires can be installed for temporary needs or can be installed for permanent electric setups, wiring in buildings, buried under ground or run overhead. These cables are generally made from copper and aluminum. Wide variety of electric cables are available in the market and customers can select one according to their needs.
XPLC,PILC,PVC,EPR and PE are different types of power cables available in the market. XPLC and PILC cables are in high competition from other power wires. PILC cables used for voltage range starting from 1.1KV to 750KV AC.
The PILC are gradually replaced by other less hygroscopic polymeric insulated conductors as these cables are more reliable and used for medium voltage applications. These cables are initially developed in 1930's. Even today also in many places these wires are used in their original oil-insulated protective equipments. The best point is that, they still work superior with little maintenance.
It may be possible that the power cable that is suitable for one application is not suitable for other application. So you have to consider several factors while purchasing cables. Some of them are
-Insulation level.
-Potential operating voltage.
-Flame retardant properties.
-Possible overloading duration and magnitude.
-Frequency
Most common problems with the PILC, oil-impregnated power cables generate when they are disturbed. Regular maintenance, the involvement of new connections and latest construction puts additive mechanical and electric stresses on these aging system accessories. It is cheaper as compared to XPL and is mainly made from aluminum. It has electronic force about V3,3 up to 33kV. This power cable is usually of single or three core and it develop for underground. It can also be used for earthen. It is generally develop to SANS and also other International Standards. It is of screened or belted Construction.
PILC are closed within oil-filled equipment by a various procedure, but usually by a top or bottom entry wiping sleeve. If person wants to replace a PILC with XLPE or any other cable, there may be some difficulties occurs with the connection to the oil-filled connection box.
It is not possible for ordinary person to instal these cables. Proper knowledge and experience is required to instal PILC cables or any other power cables. Customers are suggested to hire only experience, knowledgeable and certified company and professionals when they are in need of installing PILC wires in their buildings.
