303-6 FR IEC 60502-1

The Outer Sheath is the insulator that comes after the core(s) coated on each insulated conductor of the cable. Sheath insulation is the outermost insulation material used to protect the cables from external factors. Insulating, flexible and impact resistant raw materials such as PVC Compound are used to prevent various external damages to the cables. It is generally used as an insulation material in the production of fire resistant cable types with low smoke density and flame retardant properties.