V-Marc makes 3 core flat cables are highly recommended for submersible applications and manufactured with a conductor comprised of annealed bare copper wire of electrolytic grade, bunched properly to ensure desired flexibility. The conductor of XLPE Submersible cables is insulated with a thermoset polymer known as cross linked polyethylene (XLPE) with uniform thickness in each of the cores coloured as red, yellow and blue by using modern extrusion techniques. The sheath with uniform thickness and moisture resistant PVC (Grade ST2) compound which is formulated and manufactured in house, is extruded over these coloured cores in a flat formation. The colour of the sheath is black / blue. The cable undergoes stringent quality checks from the inward of raw materials, during various stages of manufacturing and final testing as per the laid down specification and our own internal stringent quality norms. The cables are available with progressive sequential length marking, company name, size & voltage imprinted or embossed on sheath.