PVC Flexible Cables

Kaydour branded, PVC insulated L. T. Light duty cables are as per is 694 and are suitable for fixed wiring and flexible operations. The cables are suitable for use on AC single phase or three phase (earthed or unearthed) system for rated voltage up to and including 1100 volts.Conductor the most acceptable metals for conductors are copper and aluminium due to their higher conductivity and ductility. As copper has got higher affinity for sculpture, it corrodes in the atmosphere where sulphur fumes are present. In these conditions tinned copper should be used.Conductor construction the most economical construction for conductor is solid conductor I. E. Conductor is made of one single wire. As the area of conductor increases, solid conductor becomes stiffer and hence difficult to handle. In this case stranded construction is adopted. The construction of conductors as per is 694 and they must comply with is 8130,1984 which is the specification for conductors for electric cables.Insulation the PVC covering over conductor is called insulation and provided by extrusion process. The insulated conductor is called a core. As per is 694 the insulation should be of type a PVC compound as per is5831 and it is suitable for 70 c continuous operation.Laying up in case of multicore cables the cores are laid up with suitable lay.Sheath the PVC coating on core and on laid up cores in case of multi-core cables is called sheath. As per is694 it should be of type st1 PVC compound as per is5831. It is suitable for 70 c continuous operation.Delivery length the cables are generally delivered in 90 meters coils wrapped with polyethylene and packed in card board boxes. The bigger size cables are supplied on wooden drums.