Abstract: The manufacturing method includes the incorporation of a rodent repellent product, (1a & 1b) specifically (saccharyde of benzyldiethyl [(2,6-xililcarbamoilmethyl)] ammonium, capsaicine derivatives of izoate N-{2-[(2,6-dimethylphenyl)amino]-2-oxoethyl}-n,n-diethylbenzenmethanamine, (e)-8-methyl-N-vainilla-6-nonenamide, derivatives of oleoresine, capsaicinoids in an LDPE vehicular resin), in a solid form of pellets (1a), or in powder (1b) in any composition of any of the materials (2a & 2b) with which any of the constitutive elements (3) of the sheath (4) are formed, said repellent product thus being incorporated in the sheath (4).