A fire resistant cable (10; 20) comprising: a conducting element (2; 21); a layer, surrounding the conducting element, made of a ceramifiable composition comprising: - a thermoplastic polymer mixture comprising: (a) a copolymer of ethylene with a C 4 -C 12 alpha-olefin, having a density of from 0.860 to 0.910 g/cm 3, a melt flow index not higher than 3 g/10 min and a melting point of 105°C at most; (b) an ethylene homopolymer or copolymer of ethylene with a C 4 -C 12 alpha-olefin, having a density of from 0.900 to 0.985 g/cm 3, a melt flow index not higher than 5 g/10 min and a melting point of at least 110°C; and (c) a polyethylene grafted with an ethylenically unsaturated monomer; - at least 25 wt% of silica; - a fluxing agent selected from alkaline metal oxides or precursors thereof; - an inorganic hydroxide compound selected from magnesium hydroxide, aluminium hydroxide and mixtures thereof; - a stabilizing agent comprising a hydrated magnesium silicate in an amount of at least 5 wt%; weight percentages being based on the total weight of the ceramifiable composition. a conducting element (2; 21); a layer, surrounding the conducting element, made of a ceramifiable composition comprising: - a thermoplastic polymer mixture comprising: (a) a copolymer of ethylene with a C 4 -C 12 alpha-olefin, having a density of from 0.860 to 0.910 g/cm 3, a melt flow index not higher than 3 g/10 min and a melting point of 105°C at most; (b) an ethylene homopolymer or copolymer of ethylene with a C 4 -C 12 alpha-olefin, having a density of from 0.900 to 0.985 g/cm 3, a melt flow index not higher than 5 g/10 min and a melting point of at least 110°C; and (c) a polyethylene grafted with an ethylenically unsaturated monomer; - at least 25 wt% of silica; - a fluxing agent selected from alkaline metal oxides or precursors thereof; - an inorganic hydroxide compound selected from magnesium hydroxide, aluminium hydroxide and mixtures thereof; - a stabilizing agent comprising a hydrated magnesium silicate in an amount of at least 5 wt%; - a thermoplastic polymer mixture comprising: (a) a copolymer of ethylene with a C 4 -C 12 alpha-olefin, having a density of from 0.860 to 0.910 g/cm 3, a melt flow index not higher than 3 g/10 min and a melting point of 105°C at most; (b) an ethylene homopolymer or copolymer of ethylene with a C 4 -C 12 alpha-olefin, having a density of from 0.900 to 0.985 g/cm 3, a melt flow index not higher than 5 g/10 min and a melting point of at least 110°C; and (c) a polyethylene grafted with an ethylenically unsaturated monomer; (a) a copolymer of ethylene with a C 4 -C 12 alpha-olefin, having a density of from 0.860 to 0.910 g/cm 3, a melt flow index not higher than 3 g/10 min and a melting point of 105°C at most; (b) an ethylene homopolymer or copolymer of ethylene with a C 4 -C 12 alpha-olefin, having a density of from 0.900 to 0.985 g/cm 3, a melt flow index not higher than 5 g/10 min and a melting point of at least 110°C; and (c) a polyethylene grafted with an ethylenically unsaturated monomer; - at least 25 wt% of silica; - a fluxing agent selected from alkaline metal oxides or precursors thereof; - an inorganic hydroxide compound selected from magnesium hydroxide, aluminium hydroxide and mixtures thereof; - a stabilizing agent comprising a hydrated magnesium silicate in an amount of at least 5 wt%; weight percentages being based on the total weight of the ceramifiable composition.