Patent ID: 7518064

Claim:
A halogen free flame retardant cable comprising at least one insulated wire, an inner sheath covering the at least one insulated wire and an outer sheath covering the inner sheath, wherein the inner sheath includes a polyolefin based resin or a resin composition mainly composed of the polyolefin based resin; the outer sheath includes a crosslinked resin mixture of a thermoplastic polyurethane elastomer and a thermoplastic polyester elastomer or a crosslinked resin composition mainly composed of the mixture; the inner sheath further includes a flame retardant composed of aluminum hydroxide and/or magnesium hydroxide in an amount of 30˜120 parts by weight per 100 parts by weight of the polyolefinic resin; and the outer sheath further includes a halogen free flame retardant containing nitrogen in a molecule in an amount of 3˜35 parts by weight per 100 parts by weight of the resin mixture.