Airson make three core flat cables are best suited for submersible application and manufactured with conductor using annealed bare copper wires of electrolytic grade, bunched properly to ensure desired flexibility. The conductor is further insulated with thermoset type Cross Linked Polyethylene (XLPE) with uniform thickness with each each of the core colours in red, yellow, and blue by using most modern machinery and extrusion techniques. The sheath with uniform thickness of heat and moisture Resistant type PVC (Grade ST2) compound formulated and manufactured inhouse, is extruded over these coloured cores in a flat formation. The colour of the sheath is black. The cables undergo stringent quality checks during raw materials, in process and final testing as per the laid down specification and the quality norms. The cables are available with progressive sequential marking, company name size & voltage printed on sheath. following are the advantages offered by XLPE insulated cable over the PVC insulated cables.