HALOGEN-FREE FLAME-RETARDANT INSULATED ELECTRICAL WIRE

摘要

Provided is a halogen-free insulated electrical wire that meets the requirements for an insulated electrical wire for automobiles, such as oil resistance and flame retardancy, and that can combine good abrasion resistance with high flexibility (elongation) of a coating film. The halogen-free flame-retardant insulated electrical wire includes a conductor and an insulating layer that covers the conductor. In the halogen-free flame-retardant insulated electrical wire, the insulating layer is composed of a cross-linked product of a resin composition that contains 6 to 25 parts by mass of a phosphoric acid ester and 1 to 10 parts by mass of a multifunctional monomer relative to 100 parts by mass of a resin component containing 40 to 65 parts by mass of a high-density polyethylene having a melt flow rate of 0.60 or less, 25 to 30 parts by mass of a polyphenylene ether-based resin, and 10 to 30 parts by mass of styrene-based elastomer, the resin component being a polymer alloy in which the polyphenylene ether-based resin and the styrene-based elastomer are finely dispersed in the high-density polyethylene.