Cables with a halogen-free recyclable coating comprising polypropylene and an ethylene copolymer having high elastic recovery

A cable, comprising:

• a plurality of conductors each coated with a layer of an insulating polymer material and arranged to form interstitial spaces;
• a flame-retardant filling material disposed in the interstitial spaces;
• and
• an external sheath;
• wherein the external sheath comprises a flame-retardant polymer composition comprising:
• a crystalline propylene homopolymer or copolymer;
• an elastomeric copolymer of ethylene with at least one alpha-olefin having from 3 to 12 carbon atoms, the elastomeric copolymer being characterized by a 200% tension set value of less than 30%, as measured at 20° C. for one minute according to ASTM standard D 412;
• and
• a flame-retardant inorganic filler.

A flame-retardant polymer composition, comprising:

• a crystalline propylene homopolymer or copolymer;
• an elastomeric copolymer of ethylene with at least one alpha-olefin having from 3 to 12 carbon atoms, the elastomeric copolymer being characterized by a 200% tension set value of less than 30% as measured at 20° C. for one minute according to ASTM standard D 412;
• and
• a flame-retardant inorganic filler.